Explore 3 principal java developer jobs from 1 hiring companies in Muscatine, IA, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Principal Java Developer

Davenport

Moline

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Principal Java Developer Jobs

Onsite

Date Posted:2026-03-24Country:United States of AmericaLocation:US-IA-CEDAR RAPIDS-105 ~ 400 Collins Rd NE ~ BLDG 105Position Role Type:UnspecifiedU.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance Type: Security Clearance Status: Not RequiredRockwell Collins Inc. d/b/a Collins Aerospace has an opening for a Principal Engineer, Software Engineering in Cedar Rapids, IA.Joining Collins Aerospace isn’t just about finding a job; it’s about embarking on a journey to redefine the future of aerospace technology.What YOU will do<ul><li>Design, develop, document, test and debug control and diagnostic systems that contain logical and mathematical solutions.</li><li>Conduct multidisciplinary research and collaborates with equipment designers in the planning, design, development and utilization of electronic data processing system for product and commercial software.</li><li>Determine end user needs by analyzing system capabilities to resolve problems on program intent, output, requirements and input data acquisition.</li><li>Ensure hardware and software standards are met.</li><li>Design and implement build procedures that are used to support hardware and software product development and use.</li><li>Develop software configuration standards for company-wide use.</li><li>Train software developers in the use of configuration management tools and the implementation of software quality standards, including control modeling (model-based design).</li><li>Conduct, test and perform debug of control and diagnostic systems that contain logical and mathematical solutions.</li><li>Conduct disciplinary research and collaborate with equipment designers in the planning, design, development and utilization of electronic data processing systems and commercial software.</li><li>Measure and analyze software designs for equipment / products to ensure current and future needs of the business are met.</li><li>Build and implement procedures that are used to support hardware and software product development and functions.</li><li>Operate equipment and computer systems for testing and software design purposes to facilitate operations and ensure that established objectives are achieved.</li></ul>Qualifications You Must Have<ul><li>Must possess at least a bachelor’s degree or its equivalent in Computer Science, Computer Engineering, Electrical Engineering or related field and at least 8 years of progressive experience as a Software Engineer or related role in the Aerospace/Defense industry. In the alternative, at least a master’s degree or its equivalent in Computer Science, Computer Engineering, Electrical Engineering or related field and at least 5 years of experience as a Software Engineer or related role in the Aerospace/Defense industry would be acceptable. </li><li>Must possess at least 5 years of experience with the use and application of software engineering principles and techniques to perform software testing, integration, and trouble shooting in support of fielded products in C&#43;&#43;, Python, and Java languages.</li><li>Must possess at least 5 years of experience with safety critical product development for the Avionics/Aerospace domain.</li><li>Must possess at least 5 years of experience with analysis of software systems of moderate to high complexity such as systems with multiple sub-systems with multiple hardware components or mixed electrical technologies and software programs.</li><li>Must possess at least 3 years of experience in Software Engineering in the avionics industry with ARP-4754, DO-127 B/C, DO-160 and/or DO-254 compliance.  </li><li>Non-U.S. Person – Position will not offer work immigration sponsorship and will seek export authorizations to allow the individual to work on a specific program or project.</li></ul>Learn More &amp; Apply Now!Avionics: Our Avionics team advances flight deck solutions, airborne communications, vision systems, sensors and fire protection for commercial and military customers around the world. That means we’re helping people reach their destination safely and keeping pilots, passengers, flight crews, airlines, airports and military personnel connected and informed. And we’re providing industry-leading fire protection and safety systems that our customers can count on when it matters most. Are you ready to learn from the most knowledgeable experts in the industry, develop the technologies of tomorrow and reach new heights in your career? Join our Avionics team today.Onsite: Employees who are working in Onsite roles will work onsite. Thisincludes all production and maintenance employees, as they are essential to the development of our products.The salary range is $133,494.00 to $203,000.00 USD per year. 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.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.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 Engineer, Software Engineering

Principal Engineer

Bachelor’s or Master’s in CS/CE/EE with 5+ years in aerospace/defense software; C++, Python, Java; avionics safety compliance; non-U.S. person not eligible for sponsorship.

Globalhr

Date Posted:2026-02-08Country:United States of AmericaLocation:US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121Position 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 1Our nation&#39;s security depends on the sacrifice of the men and women who defend our country. For them to do this effectively, they need technology that keeps them a step ahead of their adversaries. This means providing secure yet technologically advanced equipment to our service personnel, fielded as quickly as possible. Our commitment is to do exactly that.This position is for a Systems Engineer who will work onsite in our Cedar Rapids, IA facility.  Join the Mission Systems Secure Systems Department and help shape, define, and design communication solutions that connect militaries around the world!  As a Systems Engineer, you will design and develop military products ensuring safe and protected communication. You will interface with multi-discipline engineering teams to create total system solutions, addressing both domestic and international customer needs. We are looking for talented individuals that love to problem solve and have a desire to grow and gain exposure to new skills. Our customers come from all different backgrounds, and so do our employees. If you&#39;re passionate about what you could accomplish here, we&#39;d love to hear from you.What You Will Do<ul><li>Perform analysis, architecture and design at all levels of the total system product including concept, design, fabrication, modeling, test, installation, operation, maintenance and disposal. </li><li>Perform functional analysis, trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications. </li><li>Provide analysis for the decomposition of customer specifications and system level requirements into sub-system and piece part requirements, and develop verification criteria and plans for the requirements </li><li>Perform technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total system solutions.</li><li>Perform bid and proposal efforts </li><li>Design, develop, and implement automated testing frameworks</li><li>Travel up to 10%</li></ul>What YOU Will Learn<ul><li>You will gain technical leadership experience, mentorship opportunities, and exposure to very influential individuals within Mission Systems that will help advance your career.</li><li>You will obtain invaluable experience working with our subject matter experts in addition to security and crypto certification specialists, our customer base, and cross-functional integrated product team.</li><li>You can take flight to becoming knowledgeable in security hardened products with exposure to the variety of business and products in an ever-evolving field. We are growing, so can you!</li></ul>Qualifications You Must Have<ul><li>Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree and 5 years experience.</li><li>Active and transferable Secret U.S. government issued security clearance is required prior to start date.</li><li>U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance</li><li>Experience with the systems development process, including requirements capture, design, decomposition, integration, verification/validation, and transition to production</li></ul>Qualifications We Prefer<ul><li>Familiarity with the Scaled Agile framework </li><li>Exceptionally strong communication skills, experience presenting technical data to program management and executive leadership </li><li>Experienced with Embedded Systems and Digital Hardware architecture/design</li><li>Experience with tools such as DOORS, CAMEO or similar</li><li>Experience with test automation frameworks and programming languages like Java, Python, or C#</li><li>Knowledge of routing, switching, TCP/IP, firewalls, DNS, DHCP, and network security principles</li></ul>What We OfferSome of our competitive benefits package includes:   <ul><li>Medical, dental, and vision insurance  </li><li>Three weeks of vacation for newly hired employees  </li><li>Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option  </li><li>Tuition reimbursement program </li><li>Student Loan Repayment Program  </li><li>Life insurance and disability coverage  </li><li>Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection </li><li>Birth, adoption, parental leave benefits </li><li>Ovia Health, fertility, and family planning  </li><li>Adoption Assistance           </li><li>Autism Benefit  </li><li>Employee Assistance Plan, including up to 10 free counseling sessions  </li><li>Healthy You Incentives, wellness rewards program </li><li>Doctor on Demand, virtual doctor visits  </li><li>Bright Horizons, child and elder care services </li><li>Teladoc Medical Experts, second opinion program  </li><li>Eligible for relocation assistance</li><li>And more!  </li></ul>Eligible for relocation.Learn More &amp; Apply Now!Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.Role Type*Please ensure the role type (defined below) is appropriate for your needs before applying to 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. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.   Apply now and be part of the team that’s redefining aerospace, every day.   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 Systems Engineer

STEM degree with 8+ years experience or advanced degree with 5+ years; active Secret DoD security clearance; U.S. citizenship; systems engineering experience.

Date Posted:2026-02-08Country:United States of AmericaLocation:US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121Position 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 1Our nation&#39;s security depends on the sacrifice of the men and women who defend our country. For them to do this effectively, they need technology that keeps them a step ahead of their adversaries. This means providing secure yet technologically advanced equipment to our service personnel, fielded as quickly as possible. Our commitment is to do exactly that.This position is for a Systems Engineer who will work onsite in our Cedar Rapids, IA facility.  Join the Mission Systems Secure Systems Department and help shape, define, and design communication solutions that connect militaries around the world!  As a Systems Engineer, you will design and develop military products ensuring safe and protected communication. You will interface with multi-discipline engineering teams to create total system solutions, addressing both domestic and international customer needs. We are looking for talented individuals that love to problem solve and have a desire to grow and gain exposure to new skills. Our customers come from all different backgrounds, and so do our employees. If you&#39;re passionate about what you could accomplish here, we&#39;d love to hear from you.What You Will Do<ul><li>Perform analysis, architecture and design at all levels of the total system product including concept, design, fabrication, modeling, test, installation, operation, maintenance and disposal. </li><li>Perform functional analysis, trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications. </li><li>Provide analysis for the decomposition of customer specifications and system level requirements into sub-system and piece part requirements, and develops verification criteria and plans for the requirements </li><li>Perform technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total system solutions.</li><li>Perform bid and proposal efforts </li><li>Design, develop, and implement automated testing frameworks</li><li>Travel up to 10%</li></ul>What YOU Will Learn<ul><li>You will gain technical leadership experience, mentorship opportunities, and exposure to very influential individuals within Mission Systems that will help advance your career.</li><li>You will obtain invaluable experience working with our subject matter experts in addition to security and crypto certification specialists, our customer base, and cross-functional integrated product team.</li><li>You can take flight to becoming knowledgeable in security hardened products with exposure to the variety of business and products in an ever-evolving field. We are growing, so can you!</li></ul>Qualifications You Must Have<ul><li>Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.</li><li>Active and transferable Secret U.S. government issued security clearance is required prior to start date.</li><li>U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance</li><li>Experience in TCP/IP, subnetting, DNS, DHCP, MACSEC/IPSEC/CIPSO </li><li>Experience in routers, switches, firewalls, WAN accelerators </li><li>Experience in network security principles, firewalls, VPNs </li><li>Experience in network monitoring and troubleshooting tools </li></ul>Qualifications We Prefer<ul><li>Security&#43;, SecurityX, or equivalent experience </li><li>CompTIA Network&#43;, A&#43;, or equivalent, or equivalent experience </li><li>CCNA (Cisco Certified Network Associate), CCNP (Professional), JNCIA, JNCIS, Wireshark Certified Network Analyst (WCNA), or equivalent experience</li><li>Familiarity with the Scaled Agile framework </li><li>Exceptionally strong communication skills, experience presenting technical data to program management and executive leadership </li><li>Experienced with Embedded Systems and Digital Hardware architecture/design</li><li>Experience with tools such as DOORS, CAMEO or similar</li><li>Experience with test automation frameworks and programming languages like Java, Python, or C#</li></ul>What We OfferSome of our competitive benefits package includes:   <ul><li>Medical, dental, and vision insurance  </li><li>Three weeks of vacation for newly hired employees  </li><li>Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option  </li><li>Tuition reimbursement program </li><li>Student Loan Repayment Program  </li><li>Life insurance and disability coverage  </li><li>Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection </li><li>Birth, adoption, parental leave benefits </li><li>Ovia Health, fertility, and family planning  </li><li>Adoption Assistance           </li><li>Autism Benefit  </li><li>Employee Assistance Plan, including up to 10 free counseling sessions  </li><li>Healthy You Incentives, wellness rewards program </li><li>Doctor on Demand, virtual doctor visits  </li><li>Bright Horizons, child and elder care services </li><li>Teladoc Medical Experts, second opinion program  </li><li>Eligible for relocation assistance</li><li>And more!  </li></ul>Eligible for relocation.Learn More &amp; Apply Now!Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.Role Type*Please ensure the role type (defined below) is appropriate for your needs before applying to 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. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.   Apply now and be part of the team that’s redefining aerospace, every day.   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 Systems Engineer - Network Engineer

Systems Engineer

Senior Systems Engineer with DoD Secret clearance, 8+ years in STEM; experience with TCP/IP, DNS, DHCP, network security, and DoD security requirements.

Principal Java Developer Jobs in Muscatine, IA, US | HiringCafe: every job on earth

Principal Java Developer Jobs in Muscatine, IA, US

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