Explore 4 java devops developer jobs from 2 hiring companies in Green Valley, AZ, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Java Devops Developer Jobs

Quest Defense

Onsite

Globalhr

Date Posted:2026-04-20Country:United States of AmericaLocation:US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805Position 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: Active and existing security clearance required on day 1At 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.The Integrated Solutions, Modeling, and Architecture (ISMA) directorate assesses, develops, and evaluates solution architectures for our customers’ largest, most complex challenges across all the operational domains. In the Operations and Mission Analysis Department you’ll be part of a special team that analyzes the world’s most challenging threats and helps define new capabilities to counter them, pushing the boundaries of innovation, and leading the industry in operational modeling and simulation using our purpose-built software. As a team member in the Air Dominance Modeling and Analysis section, you will join a high-performing team of engineers working with high-fidelity sensor, platform, and weapon simulations to provide actionable analysis to the Department of Defense and the Warfighter.Raytheon is currently seeking a Kill Chain Software Developer Engineer I.  This is an onsite role in Tucson, AZ, with the potential for occasional travel, perhaps a few times a year. What You Will Do<ul><li>Actively participate as a member of an agile development team</li><li>Design, Develop, Review and Test new software features in an all-digital distributed simulation environment</li><li>Implement APIs and integration external high-fidelity digital simulation software into Raytheon’s Air Dominance Testbed and Air Combat Evaluation Model®.</li><li>Provide direct Warfighter support by developing software used to inform operator tactics and procedures.</li><li>Work with Subject Matter Experts to verify and validate digital simulation performance</li><li>Work cross-domain to develop medium-fidelity physics models of conceptual missile systems</li></ul>Qualifications You Must Have<ul><li>Bachelor’s degree in a Science, Technology, Engineering, or Mathematics (STEM) field (including computer science).</li><li>Experience with at least one object oriented programming language (Python, C&#43;&#43;, Java, C#, etc)</li></ul>Experience may be obtained through on‑the‑job experience, research, coursework, or projectsQualifications We Prefer<ul><li>Specific majors: Computer Science, Computer/Electrical Engineering, Software Engineering, Mechanical Engineering, Aerospace Engineering</li><li>Cumulative GPA ≥ 3.0</li><li>Coursework, internship, projects or work experience in the following areas:<ul><li>Simulation modeling, development, and/or analysis of physical systems</li><li>Agile development methodologies</li><li>Probability and statistics</li><li>Software development processes and object-oriented design using and/or Python in either Unix or Linux computing environments.</li><li>Software Configuration Management tools and processes (git, subversion, mercurial)</li><li>Computation on high-performance computing (HPC) grids/clusters, SLURM</li><li>Distributed simulation communication standards (DIS, TENA, HLA)</li><li>DevOps tools, processes, and methods</li></ul></li><li>Demonstrated ability in the following areas:<ul><li>Excellent communication skills and ability to effectively collaborate with peers, customers, management, and functional partners (IT, Cyber Security, Security).</li><li>Creation and presentation of effective technical reports in PowerPoint and Document form.</li></ul></li><li>Prior experience with classified material</li><li>Active and transferable U.S. government issued SECRET or TOP SECRET security clearance</li></ul>What We Offer:<ul><li>Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.</li><li>Relocation eligible</li></ul>Learn More &amp; Apply Now!Please consider the following role type definition as you apply for this role.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.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.This position requires the ability to obtain 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> 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

2026 Software Developer Engineer I - Onsite

Software Developer Engineer I

Bachelor’s degree in STEM with experience in at least one OOP language (Python, C++, Java, C#).

Date Posted:2026-04-29Country:United States of AmericaLocation:US-AZ-TUCSON-9030 ~ 9030 S Rita Rd ~ BLDG 9030Position 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: Active and existing security clearance required on day 1At RTX, the world&#39;s largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference, solving the world’s most complex problems. With our three market-leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunities no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. At 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.The Integrated Solutions Modeling and Architecture Directorate performs customer focused operational analysis, simulation, mission planning and architecture development activities within Raytheon, an RTX company.  Supporting this mission are teams driving flexible integrated solutions crossing all product areas (sensors, effectors, command and control, logistics and operations), developing tools and methods to evaluate system level studies and visualization based on customer requirements.  The team welcomes you to join our tradition of excellence through innovation and teamwork in a flexible work environment to meet the needs of today’s workforce. Join this highly visible team and perform highly technical assignments, directly contributing to protecting our nation and our warfighters.  Specifically, we are looking for a Senior Mission Planning Engineer to join the Mission Planning Section.   This Section’s goals are to assist in developing a system Concept of Operation for the entire process from mission planning to weapon employment; to support, drive, and enable key business captures/current programs; execute special projects, and drive corporation-wide business opportunities.   This position is an on-site role located in Tucson, AZ.What You Will Do<ul><li>You will join a team of engineers and analysts to realize Mission Planning team objectives: </li><li>Become the “go-to” source for mission planning expertise. </li><li>Travel will be required to witness flight tests and provide onsite support.</li><li>Develop common mission planning solutions across programs, Captures and IRADs </li><li>Grow a mission planning cadre with varied experience and skills. </li><li>Develop team expertise in mission planning methods, software development, and tools. </li><li>Coordinate with other IPTs, Program Chief Engineer, and Program Management </li><li>Develop capability delivery plans and lead team execution in an agile framework. </li><li>Engage directly in mission planning application software development and test. </li><li>You will provide guidance, direction, mentoring and influencing skills, and foster teamwork, interdependent execution, and growth for younger Engineers.  </li></ul>.Qualifications You Must Have<ul><li>Typically requires a Bachelor&#39;s Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of five years of prior relevant experience unless prohibited by local laws/regulations.</li><li>Software architecture, design, development, integration, and verification (virtual machines, C#, C&#43;&#43;, Java). </li><li>Experience in developing cross platform .NET backend web applications for cloud deployment</li><li>Software development experience utilizing DevOps pipeline workflows</li><li>Experience in any of these related topics: <ul><li>Mission Planning  </li><li>Common Weapon Component experience </li><li>Universal Armament Interface (UAI) or Common Flexible Weapon (CFW)</li><li>System performance, CONOPS </li><li>Algorithms and signal processing </li><li>Aerodynamics, Launch Acceptability Regions, Modeling and Simulation (i.e., 6-DOF) </li><li>Aircraft integration and store interface (i.e.  MIL STD 1553 and 1760) </li></ul></li><li>Active and transferable Secret U.S. government-issued security clearance is required before 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>Advanced Degree in Science, Technology, Engineering, Physics, or Mathematics (STEM)  </li><li>Systems Engineering approaches for Mission Planning requirements</li><li>Cameo/SysML modeling experience</li><li>Experience with UAI/CFWICD tailoring for Mission Planning solutions</li><li>Experience with Python, and working with batch scripts</li><li>Excellent communication skills and ability to effectively collaborate with subordinates, customers, and senior managers throughout the company’s organizations. </li><li>Experience in Military CONOPs, weapons planning, weapons employment </li><li>Experience with Joint Mission Planning System (JMPS) or Next-gen Open Mission Systems (NOMS) </li><li>Experience with microservice architecture and software engineering </li><li>Experience and knowledge of the Integrated Product Development System (IPDS), Earned Value Management, Proposals and Basis of Estimates (BOEs) </li><li>Top Secret clearance </li></ul>What We Offer<ul><li>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.</li><li>Relocation Eligibility.</li></ul>Learn More &amp; Apply Now!<ul><li>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.</li><li>Candidates will learn more about role type and current site status throughout the recruiting process. For onsite roles, commuting to and from the assigned site is the employee’s personal responsibility.</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.</li><li>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-RH2</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 86,800 USD - 165,200 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 Mission Planning Engineer/ Senior Systems Engineer (Onsite)

Senior Mission Planning Engineer

Bachelor's in STEM with 5+ years of experience; software architecture, .NET, C#, C++, Java; cloud web apps; DevOps; mission planning topics; active DoD Secret clearance.

Date Posted:2026-04-29Country:United States of AmericaLocation:US-AZ-TUCSON-9030 ~ 9030 S Rita Rd ~ BLDG 9030Position 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: Active and existing security clearance required on day 1At RTX, the world&#39;s largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference, solving the world’s most complex problems. With our three market-leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunities no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. At 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.The Integrated Solutions Modeling and Architecture Directorate performs customer focused operational analysis, simulation, mission planning and architecture development activities within Raytheon, an RTX company.  Supporting this mission are teams driving flexible integrated solutions crossing all product areas (sensors, effectors, command and control, logistics and operations), developing tools and methods to evaluate system level studies and visualization based on customer requirements.  The team welcomes you to join our tradition of excellence through innovation and teamwork in a flexible work environment to meet the needs of today’s workforce. Join this highly visible team and perform highly technical assignments, directly contributing to protecting our nation and our warfighters.  Specifically, we are looking for a Principal Mission Planning Technical Lead to join the Mission Planning Section.   This Section’s goals are to assist in developing a system Concept of Operation for the entire process from mission planning to weapon employment; to support, drive, and enable key business captures/current programs; execute special projects, and drive corporation-wide business opportunities.   This position is an on-site role located in Tucson, AZ.What You Will Do<ul><li>You will join a team of engineers and analysts to realize Mission Planning team objectives: </li><li>Become the “go-to” source for mission planning expertise. </li><li>Travel will be required to witness flight tests and provide onsite support.</li><li>Develop common mission planning solutions across programs, Captures and IRADs </li><li>Grow a mission planning cadre with varied experience and skills. </li><li>Develop team expertise in mission planning methods, software development, and tools. </li><li>Coordinate with other IPTs, Program Chief Engineer, and Program Management </li><li>Develop capability delivery plans and lead team execution in an agile framework. </li><li>Engage directly in mission planning application software development and test. </li><li>You will provide guidance, direction, mentoring and influencing skills, and foster teamwork, interdependent execution, and growth for younger Engineers.  </li></ul>Qualifications You Must Have<ul><li>Typically requires a Bachelor&#39;s Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of eight years of prior relevant experience unless prohibited by local laws/regulations.</li><li>Software architecture, design, development, integration, and verification (virtual machines, C#, C&#43;&#43;, Java). </li><li>Experience in developing cross platform .NET backend web applications for cloud deployment</li><li>Software development experience utilizing DevOps pipeline workflows</li><li>Experience in any of these related topics: </li><li>Experience in developing cross platform .NET backend web applications for cloud deployment.<ul><li>Mission Planning  </li><li>Common Weapon Component experience </li><li>Universal Armament Interface (UAI) or Common Flexible Weapon (CFW)</li><li> System performance, CONOPS </li><li>Algorithms and signal processing </li><li> Aerodynamics, Launch Acceptability Regions, Modeling and Simulation (i.e., 6-DOF) </li><li>Aircraft integration and store interface (i.e.  MIL STD 1553 and 1760) </li></ul></li><li>Active and transferable Secret U.S. government-issued security clearance is required before 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>Advanced Degree in Science, Technology, Engineering, Physics, or Mathematics (STEM)  </li><li>Previous leadership experience within Mission Planning</li><li>Cameo/SysML modeling experience</li><li>Experience with UAI/CFWICD tailoring for Mission Planning solutions</li><li>Experience with Python, and working with batch scripts</li><li>Experience in Military CONOPs, weapons planning, weapons employment </li><li>Experience with Joint Mission Planning System (JMPS) or Next-gen Open Mission Systems (NOMS) </li><li>Experience with microservice architecture and software engineering </li><li>Experience and knowledge of the Integrated Product Development System (IPDS), Earned Value Management, Proposals and Basis of Estimates (BOEs) </li><li>Top Secret clearance </li></ul>What We Offer<ul><li>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.</li><li>Relocation Eligibility.</li></ul>Learn More &amp; Apply Now!<ul><li>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.</li><li>Candidates will learn more about role type and current site status throughout the recruiting process. For onsite roles, commuting to and from the assigned site is the employee’s personal responsibility.</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.</li><li>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-RH2</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 107,500 USD - 204,500 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

Principal Mission Planning Technical Lead/ Principal Systems Engineer (Onsite)

Mission Planning Technical Lead

Bachelor's in STEM; 8+ years; software architecture; .NET/C#/Java; cloud; DevOps; 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.

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