Explore 12 python test software developer jobs from 3 hiring companies in Patagonia, AZ, US. Filter by remote, salary, experience, and company, then open any listing to apply.

python-test-software-developer

Python Test Software Developer

Rio Rico

Nogales

Tucson

Sierra Vista

Green Valley

Sahuarita

Sierra Vista Southeast

Drexel Heights

Tanque Verde

Vail

Tucson Estates

Valencia West

Corona de Tucson

Summit

Benson

Three Points

Bisbee

Whetstone

Sonoita

Python Test Software Developer Jobs

Komatsu

Quest Defense

Onsite

Globalhr

Date Posted:2026-04-08Country:United States of AmericaLocation:US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)Position Role Type:OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​Security Clearance Type: DoD Clearance: SecretSecurity Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start dateAt Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.This position is 100% on site in Tucson, AZWhat You Will Do:<ul><li>Guiding multidisciplined teams in the development of test equipment</li><li>Prioritize and handle multiple tasks in a production environment</li><li>Contributing to cost and schedule management planning</li><li>Communicating with senior management on project status</li><li>Troubleshooting software and test equipment</li><li>Develop requirements for software products</li><li>Written and interpersonal communication skills with Program Management</li></ul>Qualifications You Must Have:<ul><li>Typically requires a Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and ten (10) years of relevant prior experience OR an Advanced degree and 7 years of prior relevant experience.</li><li>Minimum of ten (10) years developing and integrating software applications using programming languages including but not limited to C&#43;&#43;, C#, Java, Python or Visual Basic.</li><li>Minimum of ten (10) years of professional engineering experience utilizing integrated development environments and debugging tools to troubleshoot software implementation and ensure integrity of the software products.</li><li>Experience with Windows Operating System, Microsoft Visual Studio, and Microsoft Azure DevOps Server</li><li>Familiarity with laboratory test instrumentation, electronics, and software (Ex. NI VISA, NI Measurement and Automation Explorer, NI Switch Executive)</li><li>Typically requires two (2) years’ experience managing Test Equipment on a DoD compliant information systems, leading efforts as a program manager, and/or project team lead</li><li>The ability to obtain and maintain a U.S. Government issued (Secret) security clearance is required. U.S. citizenship is required, as only U.S. Citizens are eligible for a security clearance.</li></ul>Qualifications We Prefer:<ul><li>Working knowledge of computer architecture and computer hardware optimization techniques</li><li>Extensive knowledge of the development of software drivers for the operation of computer hardware interfaces</li><li>Extensive knowledge in common computer hardware interface and data protocols such as TCP/IP, UDP, RS-422</li><li>Professional experience with Unified Modeling Language (UML) to visualize software architecture and design (Ex. IBM Rhapsody, Cameo System Modeler, and Cameo Enterprise Architecture)</li><li>Professional experience of software development lifecycles, such as Agile</li><li>Experience with Software Configuration Management principles</li></ul>What We Offer:Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.Learn More &amp; Apply Now:Please consider the following role type definition as you apply for this role.  Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.This position requires onsite work in Tucson, AZ: <a href="https://careers.rtx.com/global/en/raytheon-tucson,-az-location" target="_blank">https://careers.rtx.com/global/en/raytheon-tucson,-az-location</a>#TestEngineeringAs part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.The salary range for this role is 132,400 USD - 251,600 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms:Click on this <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms

Senior Principal Software Engineer with Test Equipment

Senior Principal Software Engineer

Senior software engineer with 10+ years in software development, test equipment, and DoD security clearance requirements.

Date Posted:2026-03-09Country:United States of AmericaLocation:US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)Position Role Type:OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​Security Clearance Type: DoD Clearance: SecretSecurity Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start dateAt Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.This position is 100% on site in Tucson, AZ and is 2nd shift (typically 3pm to 11pm Monday to Friday)Job Description:The Test Solutions Center (TSC) team within the Hardware Discipline Center is a multi-discipline organization that provides test solutions to support production lines for our entire missile portfolio. The software team within TSC is responsible for developing advanced windows application solutions for all Raytheon products. We are hands-on, designing with the latest technology and tools, and integrating state-of-the-art software solutions with the most advanced engineering systems in the world. TSC products are in engineering labs, in the field, and in production environments utilized for weapon system products. TSC has job opportunities across all phases of the engineering lifecycle, including demonstrations, early engineering tests, design verification tests, production, and post-production sustainment.The Senior Software Engineer with Test Equipment position is focused on the design, development, integration, and maintenance of software as a part of on-site factory support of systems to support weapon system product development. The selected candidate will develop applications, libraries, and instrument drivers using the software style, development language, and integrated development environment specified by the organization.The selected candidate will contribute to multidiscipline engineering teams. Typical work involves the development of both engineering and production equipment, environments, and systems. As such, the candidate will contribute to the completion of all stages of product development for RMD weapon system products. They will be expected to work, either as a part of a team or independently, to design, develop, and implement system level applications in support of producing and maintaining weapon system products.What You Will Do: <ul><li>Design, develop and integrate object-oriented software applications using C#, C&#43;&#43; in Microsoft Visual Studio in a Windows Operating System (OS)</li><li>Prioritize and handle multiple software engineering tasks concurrently</li><li>Troubleshoot software and test equipment instrumentation</li><li>Work in a multidiscipline engineering team environment</li><li>Develop and derive requirements for software products</li></ul>Qualifications You Must Have:<ul><li>Typically requires a Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum 2 years prior relevant experience. </li><li>Experience in developing and integrating software applications using programming languages including but not limited to C&#43;&#43;, C#, Java, Python or Visual Basic.</li><li>Experience in utilizing integrated development environments and debugging tools to troubleshoot software implementation and ensure integrity of the software products.</li><li>Experience with Windows Operating System and Microsoft Visual Studio is required.</li><li>Ability to obtain a U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.</li></ul>Qualifications We Prefer:<ul><li>Knowledge of computer architecture and computer hardware optimization techniques</li><li>Knowledge of the development of software drivers for the operation of computer hardware interfaces</li><li>Knowledge in common computer hardware interface and data protocols such as TCP/IP or UDP</li><li>Knowledge of Unified Modeling Language (UML) to visualize software architecture and design</li><li>Knowledge of software development lifecycles, such as Waterfall and Agile</li><li>Knowledge of Software Configuration Management principles</li><li>Good written and interpersonal communication skills</li></ul>What We Offer:Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.Learn More &amp; Apply Now:Please consider the following role type definition as you apply for this role.  Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.This position requires onsite work in Tucson, AZ: <a href="https://careers.rtx.com/global/en/raytheon-tucson,-az-location" target="_blank">https://careers.rtx.com/global/en/raytheon-tucson,-az-location</a>As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.The salary range for this role is 68,900 USD - 131,100 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms:Click on this <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms

Software Engineer II with Test Equipment - 2nd Shift

Software Engineer II with Test Equipment

Bachelor’s in STEM with 2+ years of software development experience using C++, C#, Java, Python or Visual Basic; Windows/Visual Studio experience; ability to obtain security clearance.

Date Posted:2026-04-08Country:United States of AmericaLocation:US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)Position Role Type:OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​Security Clearance Type: DoD Clearance: SecretSecurity Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start dateAt RTX, formerly Raytheon Technologies, our mission is driven by core values and a higher purpose – to support our nation and allies in defending freedoms and deterring aggression. With over a century of exceptional engineering expertise, we address today’s mission-critical needs while anticipating and staying ahead of tomorrow’s challenges. Our teams engage in meaningful and technically challenging work that contributes to creating a safer and more secure worldThe Test Solutions Engineering team within the Hardware Discipline Center focuses on creating advanced Windows-based application solutions for high-performance products. Our Test Solution tools and systems play a critical role in supporting the full lifecycle of complex systems, from engineering labs and field operations to production environments.As a member of the Test Solutions team, you will engage in cutting-edge designs using the latest technologies, developing software solutions to integrate state-of-the-art engineering systems. You will have opportunities to contribute across all stages of the engineering lifecycle, including demonstrations, tests, design verification, production, and sustainment.What You Will Do<ul><li>Develop and integrate object-oriented software applications using C# and C&#43;&#43; in Microsoft Visual Studio</li><li>Troubleshoot and debug software to ensure functionality and reliability</li><li>Collaborate with multidisciplinary engineering teams to develop and implement solutions</li><li>Work within established software development lifecycles, including Agile and Waterfall methodologies</li><li>Develop and derive requirements for software applications and systems</li></ul>Qualifications You Must Have<ul><li>Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) obtained prior to start</li><li>Experience with software development, testing, or integration using C, C&#43;&#43;, Python, or Visual Basic</li><li>Experience with Windows Operating Systems and Microsoft Visual Studio</li></ul>Qualifications We Prefer<ul><li>Basic understanding of software development principles and object-oriented design</li><li>Strong problem-solving and troubleshooting skills</li><li>Ability to manage multiple tasks and priorities in a dynamic environment</li><li>Experience with Agile or Waterfall development lifecycles</li></ul>Learn More &amp; Apply Now!<ul><li>Please consider the following role type definition as you apply for this role.</li><li>Onsite: Employees who are working in Onsite roles will work 100% onsite. This includes all production and maintenance employees, as they are essential to the development of our products</li><li>Please upload a copy of your most recent transcripts with your resume when applying to this requisition. Include your cumulative GPA and projected graduation date on your resume.</li><li>This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: <a href="https://www.state.gov/m/ds/clearances/c10978.htm" target="_blank">https://www.state.gov/m/ds/clearances/c10978.htm</a>  </li></ul>As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.The salary range for this role is 57,200 USD - 108,800 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms:Click on this <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms

Software Engineer I -  Test Solutions - Onsite

Software Engineer I

Bachelor’s degree in STEM; experience with C/C++, Python, or Visual Basic; Windows OS and Visual Studio; onsite; ability to obtain DoD clearance.

Date Posted:2026-03-25Country:United States of AmericaLocation:US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)Position Role Type:OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​Security Clearance Type: DoD Clearance: SecretSecurity Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start dateRaytheon combines our vast resources and investments and is dedicated to solving mission-level vs. product-level customer challenges – together we can anticipate more, move faster, and make a bigger impact on the big picture.This position is 100% on-site in Tucson, ArizonaThe Test Equipment Engineering (TEE) team within the Hardware Discipline Center is a multi-discipline organization that provides test solutions to support production lines for our entire missile portfolio. The software team within TEE is responsible for developing advanced windows application solutions for all Raytheon products. We are hands-on, designing with the latest technology and tools, and integrating state of the art software solutions with the most advanced engineering systems in the world.  TEE products are in engineering labs, in the field, and in production environments utilized for weapon system products. TEE has job opportunities across all phases of the engineering lifecycle, including demonstrations, early engineering tests, design verification tests, production, and post-production sustainment.This position is focused on the design, development, integration, and maintenance of software as a part of on-site factory support of systems to support weapon system product development. The selected candidate will develop applications, libraries, and instrument drivers using the software style, development language, and integrated development environment specified by the organization.The selected candidate will contribute to multidiscipline engineering teams. Typical work involves the development of both engineering and production equipment, environments, and systems. As such, the candidate will contribute to the completion of all stages of product development for RMD weapon system products. They will be expected to work, either as a part of a team or independently, to design, develop, and implement system level applications in support of producing and maintaining weapon system products.What You Will Do: <ul><li>Design, develop and integrate object-oriented software applications using C#, C&#43;&#43; in Microsoft Visual Studio in a Windows Operating System (OS)</li><li>Prioritize and handle multiple software engineering tasks concurrently</li><li>Troubleshoot software and test equipment instrumentation</li><li>Work in a multidiscipline engineering team environment</li><li>Develop and derive requirements for software products</li></ul>Qualifications You Must Have:<ul><li>Typically requires a Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum 2 years prior relevant experience. </li><li>Experience in developing and integrating software applications using programming languages including but not limited to C&#43;&#43;, C#, Java, Python or Visual Basic.</li><li>Experience in utilizing integrated development environments and debugging tools to troubleshoot software implementation and ensure integrity of the software products.</li><li>Experience with Windows Operating System and Microsoft Visual Studio is required.</li><li>Ability to obtain a U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.</li></ul>Qualifications We Prefer:<ul><li>Knowledge of computer architecture and computer hardware optimization techniques</li><li>Knowledge of the development of software drivers for the operation of computer hardware interfaces</li><li>Knowledge in common computer hardware interface and data protocols such as TCP/IP or UDP</li><li>Knowledge of Unified Modeling Language (UML) to visualize software architecture and design</li><li>Knowledge of software development lifecycles, such as Waterfall and Agile</li><li>Knowledge of Software Configuration Management principles</li><li>Good written and interpersonal communication skills</li></ul>What We Offer: Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.Learn More &amp; Apply Now: Please consider the following role type definition as you apply for this role.  Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.This position requires onsite work in Tucson, AZ: https://careers.rtx.com/global/en/raytheon-tucson,-az-location #TestEngineeringAs part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.The salary range for this role is 68,900 USD - 131,100 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms:Click on this <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms

Software Engineer II

Bachelor’s degree in STEM; minimum 2 years’ experience; proficient in C++, C#, Java, Python or Visual Basic; familiar with Windows and Visual Studio; able to obtain US government security clearance.

<div class="content-intro">
<img style="max-width: 100%;" src="https://www.jometer.com/v2/track?c=j9z3&amp;a=2" width="1" border="0"></div>Engineers are the reason we exist—they’re the core of who we are. Embark on a journey with EXB Solutions at the forefront of technological innovation as we seek talented Engineers to shape the future of cutting-edge projects and contribute to a culture of excellence and creativity. What we do matters.
Quest Defense Systems &amp; Solutions is seeking a Senior Principal, Principal, or Senior Software Engineer to support advanced aerospace and defense test systems. In this role, you’ll develop software, automation tools, and hardware interfaces that help validate mission-critical products in both engineering and production environments.
You’ll work hands-on with C++, C#, Python, Visual Studio, and lab instrumentation while partnering with cross-functional teams to solve integration challenges, troubleshoot complex systems, and keep high-visibility programs moving.
This is an excellent opportunity for a senior engineer who enjoys building software that interacts with real hardware, thrives in fast-paced environments, and wants to make a direct impact on cutting-edge defense technology.
Due to the nature of this role, all candidates must be U.S. citizens with the ability to obtain and maintain a Secret Clearance.
This role is onsite in Tucson, AZ. Relocation assistance is provided.
Key Responsibilities:
<ul>
<li>Guiding multidisciplined teams in the development of test equipment&nbsp;</li>
<li>Prioritize and handle multiple tasks in a production environment&nbsp;</li>
<li>Contributing to cost and schedule management planning&nbsp;</li>
<li>Communicating with senior management on project status&nbsp;</li>
<li>Troubleshooting software and test equipment&nbsp;</li>
<li>Develop requirements for software products&nbsp;</li>
<li>Written and interpersonal communication skills with Program Management&nbsp;</li>
</ul>
Required Qualifications:
<ul>
<li>Typically requires a&nbsp;bachelor’s degree in science, Technology, Engineering, or Mathematics (STEM) and minimum 5 years prior relevant experience, or an Advanced degree in a related field and minimum 3 years’ experience.  &nbsp;</li>
<li>Minimum of 5 years developing and integrating software applications using programming languages including but not limited to C++. C#, Java, Python, or Visual Basic&nbsp;</li>
<li>Minimum of 5 years of professional engineering experience&nbsp;utilizing&nbsp;integrated development environments and debugging tools to troubleshoot software implementation and ensure integrity of the software products.&nbsp;</li>
<li>Experience with Windows Operating System and Microsoft Visual Studio, and Microsoft Azure DevOps Server.&nbsp;&nbsp;</li>
<li>Familiarity with laboratory test instrumentation, electronics, and software (Ex. NI VISA, NI Measurement and Automation Explorer, NI Switch Executive)&nbsp;</li>
</ul>
Desired Qualifications:
<ul>
<li>Working knowledge of computer architecture and computer hardware optimization techniques.&nbsp;</li>
<li>Extensive knowledge of common computer hardware interface and data protocols such as TCP/IP, UDP, or RS-422&nbsp;</li>
<li>Extensive knowledge of the development of software drivers for the operation of computer hardware interfaces.&nbsp;&nbsp;</li>
<li>Professional experience with Unified Modeling Language (UML) to visualize software architecture and design (EX. IBM Rhapsody, Cameo System Modeler, and Cameo Enterprise Architecture)&nbsp;</li>
<li>Professional experience of software development lifecycles, such as Agile&nbsp;</li>
<li>Experience with Software Configuration Management principles&nbsp;</li>
</ul>
The QDSS Advantage:&nbsp;&nbsp;
At QDSS, our advantage is purpose-driven work, collaborative teams, and complex challenges that push boundaries and build lasting impact.&nbsp;You’ll&nbsp;grow your career while contributing to mission-critical programs that demand excellence and shape the future.&nbsp;
What&nbsp;You’ll&nbsp;Find Here&nbsp;
<ul>
<li>Work That Matters – Next-generation, safety- and mission-critical projects where your contributions have real-world impact.&nbsp;</li>
<li>Growth&nbsp;That’s&nbsp;Supported – Competitive compensation, employer-matched 401(k), certification&nbsp;assistance, and clear opportunities for advancement.&nbsp;</li>
<li>A Culture That Works – A flexible, collaborative, and people-first environment where teamwork, innovation, and balance are valued.&nbsp;</li>
</ul>
Benefits Include&nbsp;
<ul>
<li>Competitive pay, comprehensive medical/dental/life&nbsp;and disability coverage, 401(k) with employer match, professional development support, and a flexible, friendly workplace.&nbsp;</li>
</ul><div class="content-pay-transparency"><div class="pay-input"><div class="description">Full compensation package is based on candidate experience and certifications</div><div class="title">Pay Ranges</div><div class="pay-range">$69&mdash;$74 USD</div></div></div><div class="content-conclusion">At Quest Defense Systems and Solutions, we don’t just build technology — we engineer the future. From next-generation aerospace solutions to cutting-edge defense systems, we tackle the toughest, mission-critical challenges that keep people safe and push the boundaries of innovation. This is where problem-solvers, innovators, and visionary thinkers come together to shape the future. With over 25 years of aerospace and defense engineering expertise, our commitment to delivering high-quality, transformative solutions sets us apart — not just as an industry leader, but as a driving force for impactful change. Together, we’re not just leading the industry — we’re revolutionizing it.
&nbsp;
Quest Defense provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.</div>

Principal Software Engineer - Test Systems

Software Engineer

BS in STEM or advanced degree with 3-5 years of experience; strong C++, C#, Python; Windows, Visual Studio, Azure DevOps; lab instrumentation; US citizenship and ability to obtain Secret Clearance; onsite in Tucson.

Construction, Mining and Industrial Equipment | Komatsu

<img style="font-weight:bold;float:left" src="https://rmkcdn.successfactors.com/37858365/274506f8-c4df-4c79-9935-1.png" alt="" width="221" height="112">Shape the Future of Mining with Komatsu Mining Technology Solutions: At Komatsu Mining Technology Solutions, we're not just talking about progress and innovation - we're making it happen. Our cutting-edge Modular brand solutions are powering mines worldwide, driving efficiency and sustainability in ways that seemed impossible just years ago.<div><div style="padding:10.0px 0.0px;border:1.0px solid transparent"><div style="font-size:14.0px;word-wrap:break-word"><H2 style="font-size:1.0em;margin:0.0px">Job Overview</H2></div><div>The Autonomous Haulage System (AHS) is a comprehensive fleet management system for mines. Autonomous trucks are centrally controlled through a wireless network that integrates on-board vehicle controllers, high precision global positioning, and obstacle avoidance systems. The AHS Product Development team is responsible for building innovative solutions to unique and challenging autonomous operation problems. Working with our partners around the world, you will help design and support the next generation of mine optimization technologies and build the future platforms that will drive the changes in the mining industry for generations.
 
As a Quality Assurance Engineer III – Autonomous Haulage System (AHS), you will engage with experienced cross-disciplinary team members to conceive and design innovative automation products. You will work closely with product management, hardware engineering, and operations teams. You must be responsive, flexible, and able to succeed in an open and collaborative peer environment.
 </div></div><div style="padding:10.0px 0.0px;border:1.0px solid transparent"><div style="font-size:14.0px;word-wrap:break-word"><H2 style="font-size:1.0em;margin:0.0px">Key Job Responsibilities</H2></div><div><ul style="margin-bottom:0.0in;margin-top:0.0px">
<li>Maintain deep understanding of AHS architecture, dependencies, and safety constraints; translate this knowledge into risk-based test plans and automated coverage.</li>
<li>Partner with product and engineering teams to extract, refine, and document functional + nonfunctional requirements; ensure each requirement has measurable acceptance criteria and automated validation.</li>
<li>Own the end-to-end quality strategy—including functional, performance, security, and fail over testing—leveraging service virtualization, contract testing, and containerized environments to maximize parallel execution in CI/CD.</li>
<li>Design, implement, and continuously enhance robust automation frameworks. Integrate tests seamlessly into CI/CD pipelines with infrastructure as code provisioning.</li>
<li>Drive a shift left culture: embed test hooks at design time, manage test data versioning, and maintain high signal regression suites that execute on every merge.</li>
<li>Lead execution of manual edge case and exploratory tests; automate everything else. Publish clear dashboards for pass/fail trends, defect escape rate, and MTTR; use metrics to guide continuous improvement.</li>
<li>Facilitate blameless postmortems, identify systemic issues, and convert findings into preventative automated checks.</li>
<li>Oversee compatibility matrices and deployment configurations, support field teams during installation, configuration, and on-site validation.</li>
<li>Mentor engineers, champion coding standards for test development, and pilot new tools or methodologies that increase team productivity and product quality. Coordinate cross functional initiatives to mature quality practices enterprise wide.</li>
<li>Be able to occasionally travel internationally.</li>
</ul></div></div><div style="padding:10.0px 0.0px;border:1.0px solid transparent"><div style="font-size:14.0px;word-wrap:break-word"><H2 style="font-size:1.0em;margin:0.0px">Qualifications/Requirements</H2></div><div><ul>
<li>Bachelor’s degree in computer science, Software/Systems Engineering, or related discipline (Master’s a plus).</li>
<li>6 + years combined experience in software / systems testing, with 4 + years focused on building and scaling test automation.</li>
<li>Ability to take a project from scoping requirements to production operations</li>
<li>Leadership defining comprehensive test strategies for complex, distributed or real‑time systems.</li>
<li>Proficient in at least one modern programming language used for automation (Java, Python, or C#); strong REST/gRPC API and UI automation experience.</li>
<li>Hands‑on expertise with CI/CD, containerization, and infrastructure‑as‑code for on‑demand test environments.</li>
<li>Ability to mentor, influence, and up‑level QA and development teams.</li>
<li>Excellent analytical, documentation, and cross‑functional communication skills.</li>
<li>Ability to travel for up to 10% of the time</li>
</ul></div></div><div style="padding:10.0px 0.0px;border:1.0px solid transparent"><div style="font-size:14.0px;word-wrap:break-word"><H2 style="font-size:1.0em;margin:0.0px">Preferred Qualifications</H2></div><div><ul>
<li>5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience</li>
<li>Experience in event-driven microservices and REST API’s</li>
<li>Experience with network protocols, network programming, and distributed application debugging and analysis</li>
<li>Excellence in technical communication with peers and non-technical cohorts</li>
</ul></div></div></div> 
Diversity &amp; Inclusion Commitment 
At Komatsu we come from diverse backgrounds, with unique perspectives, experiences, and contributions.  We are committed to creating a workforce that is reflective of the communities we work and live in. We believe that our people are part of our shared purpose.  We are authentic, ambitious, and innovative in our pursuit of Diversity &amp; Inclusion.  United, we are on a journey towards a sustainable future that creates value together.  
If you want to learn more about Komatsu, please visit our website at <a href="http://komatsu.com">https://www.komatsu.com/ </a>.
 
Company Information 
Komatsu is a world leader in manufacturing construction, mining, forestry, and industrial heavy equipment.  Founded in 1921, Komatsu has a long history of quality, reliability, innovation, and excellence.  Headquartered in Tokyo, Japan, Komatsu facilities, distributors and dealers are in more than 140 countries and employ more than 60,000 people.  Komatsu offers a diverse and challenging work environment, where you can grow your skills and career, and contribute to a sustainable, clean-energy future.  If you are looking for a company that values your talent and potential, be a part of something big and join a team that is shaping the world! 
 
EEO Statement 
Komatsu is an Equal Opportunity Workplace and an Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

Quality Assurance Engineer III (Tucson, AZ, US, 85706)

Quality Assurance Engineer III

Bachelor's degree in CS/Engineering; 6+ years software/systems testing, 4+ years automation; able to lead test strategy; strong programming (Java/Python/C#); CI/CD and IaC experience; travel up to 10%; excellent communication.

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