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16 software engineer sr level 3 jobs found in Fort Worth

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Lockheed Martin
Jun 19, 2026
Software Engineer Sr - Level 3
Lockheed Martin Fort Worth, TX
Description: Join the F-22 IMIS (Integrated Maintenance Information System) team supporting the operational readiness and sustainment of the F-22 Raptor. IMIS provides mission-critical hardware and software solutions that interface directly with aircraft maintenance systems, automating maintenance processes, improving diagnostic capabilities, reducing maintenance cycle times, and increasing aircraft availability. As the Software Engineer Sr, you’ll guide the technology development lifecycle – from system and software design through automation tooling and infrastructure enhancements. Your core responsibilities include: • Develop, integrate, and debug software • Lead integration efforts involving software, hardware interfaces, databases, and external systems. • Determine root-cause analysis and resolution of complex technical issues affecting system performance, reliability, and maintainability. • Support software deployment, configuration management, and lifecycle sustainment...
Lockheed Martin
Jun 19, 2026
Software Engineer Sr - Level 3
Lockheed Martin Fort Worth, TX
Description: We are Lockheed Martin By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. At Lockheed Martin, we place an emphasis on empowering our employees by fostering innovation, integrity, and exemplifying the epitome of corporate responsibility. Your Mission is Ours. Lockheed Martin Aeronautics is seeking a Software Engineer Sr to join a high performing team focused on software in a DevSecOps development environment for the Maintenance Systems (MxSys) Line of Business. In this role,...
Lockheed Martin
Apr 10, 2026
Software Engineer Sr - Level 3
Lockheed Martin Fort Worth, TX
Description: We are Lockheed Martin Lockheed Martin is seeking Software Engineers to support the F-35 Common Reprogramming Tool (CRT). The F-35 CRT is used by our F-35 customer Reprogramming Labs to generate the Mission Data File (MDF) sets, which are pivotal to the execution of successful missions and overall operation of the F-35. We are in early development of the next generation application to meet our customers’ MDF generation needs. Getting in on the ground floor of this development gives the opportunity to become a subject matter expert on a next gen product that will service the F-35 fighter for years to come. Who You Are The ideal candidate will have experience in object-oriented software development and a broad range of software technical skills. They will work in one of our multi-discipline Agile scrum teams, performing software development in a Dev*Ops environment to build the modernized CRT tool in a Java-based microservices architecture with web-based...
Lockheed Martin
Jul 03, 2026
Systems Engineer Sr - Integration & Test F35 - Level 3
Lockheed Martin Fort Worth, TX
Description: You will be the Systems Engineer Sr - Integration & Test F35 for the F-35 Test Operations which is responsible for responsible for System Integration and Testing for the F-35. This includes creating detailed test plans that include the scope of testing, different testing environments, lab infrastructure, schedules, and resource allocation. That stems from collaboration with software teams, architecture teams, design teams, and system test teams all working together to ensure F-35 modernization, sustainment, and development. What You Will Be Doing As the Systems Engineer Sr - Integration & Test F35 you will be responsible for coordinating test planning and execution across multiple domain teams to ensure successful system integration and testing of the F-35. Your responsibilities will include: Develop and maintain detailed test plans covering scope, environments, lab infrastructure, schedules, and resources. Coordinate with software,...
Lockheed Martin
Jul 02, 2026
Systems Architect Sr Stf - Autonomy Architecture - Level 5
Lockheed Martin Fort Worth, TX
Description: You will be the Systems Architect Sr Stf for the Systems Architecture Team which is responsible for shaping next‑generation autonomous capabilities for the Air Force. What You Will Be Doing As the Systems Architect Principal, you will be responsible for driving the vision and execution of autonomy architecture across Lockheed Martin’s Aeronautics portfolio. Your responsibilities will include: Collaborate with industry partners to define and advance the autonomous‑system vision. Design an autonomy architecture that emphasizes interoperability, scalability, and future‑capability growth. Lead a multidisciplinary team of software and systems engineers. Apply Digital Engineering principles (Cameo) to streamline development. Coordinate with Lockheed Martin Business Areas and Lines of Business to capture lessons learned and shape strategic direction. What’s In It For You We are committed to supporting your work‑life balance and...
Lockheed Martin
Jul 02, 2026
PTMS/Propulsion Controls Engineer – Level 3
Lockheed Martin Fort Worth, TX
Description: Lockheed Martin Aeronautics is seeking a highly skilled and experience Senior Software Engineer to support the design, development, integration, and verification of the F35 Engine Core Upgrade (ECU) and the Power Thermal Management System (PTMS) Update along with continued support of baseline fielded Propulsion and PTMS. What You Will Be Doing As a PTMS/Propulsion Software Engineer Sr you will be responsible for support of PTMS/Propulsion through its entire lifecycle. Your responsibilities will include: • Develop functional and physical architecture definitions • Develop and maintain detailed software requirements • Develop and test required hardware/software integration tests within a lab environment. • Develop models of the system in order to test software fixes with real aircraft data • Collaborate with cross functional engineers to troubleshoot systemic issues as well as aircraft faults. • Query fleet data and use data analytics to establish system level...
Lockheed Martin
Jun 25, 2026
Software Engineer - F-35 - Level 4
Lockheed Martin Fort Worth, TX
Description: At Lockheed Martin Aeronautics, we're taking innovation to the next level. From designing the most advanced air vehicle to designing aircraft that defies gravity, our engineers live on the cutting edge of technology. Never have the opportunities for a technical career been so limitless. This position is with the Core Processing Software team in Fort Worth, TX. This position requires a software engineer to use a wide application of technical principles, theories, and concepts in the software field to develop, integrate, and test software products for the F-35 program. You will be expected to lead in the design, development and integration of middleware software. Software development experience including requirements analysis, high-level and detailed design, coding, test planning, unit-testing, and CSCI integration testing is desired. You will be a member of a high-performing team and must be self-motivated with a strong work ethic, time-management, and interpersonal...
Lockheed Martin
Jun 24, 2026
Cyber System Security Engineer Sr
Lockheed Martin Fort Worth, TX
Description: Company Overview : At Lockheed Martin, we unite passionate individuals to drive purposeful innovation, ensuring safety and solving the world's most complex challenges. Our team comprises some of the brightest minds in the industry, making Lockheed Martin an exceptional place to work. We prioritize our employees by offering many career opportunities that promote development and agility. With flexible schedules, competitive pay, and comprehensive benefits, we empower our employees to lead healthy, fulfilling lives both at work and beyond. At Lockheed Martin, we emphasize innovation, integrity, and corporate responsibility. Your mission is ours. We are seeking a skilled Cyber Systems Security Engineer Sr with hands-on experience in VMware, Windows Domain administration, and Red Hat Enterprise Linux to join our team. The ideal candidate will be responsible for designing, deploying, and managing physical and virtualized environments using vCenter, Hyper-V, and ensuring...
Lockheed Martin
Jun 19, 2026
Senior Staff Software Engineer – F22
Lockheed Martin Fort Worth, TX
Description: About the Role Lockheed Martin Aeronautics seeks a highly motivated, agile, and enthusiastic engineer to join the Airborne Software Department on the F 22 program as a Sr Staff Software Engineer. In this role you will steer the technical development and evolution of mission critical aircraft software for the Stores Management System (SMS) team, blending deep domain knowledge with strong leadership. ________________________________________ Why Join Us • Mission Impactful: Develop software that powers next generation fighter aircraft. • Career Growth: Gain hands on aerospace software experience while leading industry best processes. • Team Centric Culture: Work alongside world class engineers who champion innovation, collaboration, and continuous improvement. ________________________________________ Core Responsibilities • Lead the technical direction for the F 22 Stores Management System team. • Prepare engineering basis of estimate (BOE) bids for new features. •...
Lockheed Martin
Jun 19, 2026
Systems Engineer, Sr - Integration and Test - Level 3
Lockheed Martin Fort Worth, TX
Description: You will be the Systems Engineer, Integration and Test Sr for the F-35 Systems Integration and Test (SI&T) team which is responsible for delivering technical infrastructure support that enables hardware and software integration in a lab environment. What You Will Be Doing As the Systems Engineer, Integration and Test Sr you will be responsible for ensuring seamless integration and rigorous testing of F-35 components to support mission‑critical test execution. Your responsibilities will include: Design, configure, and maintain test benches and simulation environments for hardware‑software integration. Develop and execute test procedures, capture data, and analyze results to validate system performance. Collaborate with cross‑functional engineers to troubleshoot integration issues and drive corrective actions. Document test configurations, results, and lessons learned in compliance with program standards. Support continuous...
Lockheed Martin
Jun 12, 2026
Software Engineer, Simulation Sr. Stf - Level 5
Lockheed Martin Fort Worth, TX
Description: You will be the Software Engineer, Simulation Sr. Stf for the Simulation & Systems Labs (SSL) which is responsible for... What You Will Be Doing As the Software Engineer, Simulation Sr. Stf you will be responsible for integration and troubleshooting of SSS software products in hardware‑in‑the‑loop and man‑in‑the‑loop lab environments. Our team designs, develops, integrates, simulates, analyzes, deploys, and flight tests leading‑edge systems that enable warfighters to dominate globally. Your responsibilities will include: Develop and integrate software for distributed, real‑time simulation systems. Perform integration and testing of SSS software in HIL and MIL environments. Apply simulation software engineering principles and reuse existing code bases. Support digital transformation initiatives through advanced software practices. Collaborate with cross‑functional teams using Agile DevSecOps processes. What’s In It For You We are...
Lockheed Martin
Jun 04, 2026
Systems Engineer - Data Analyst - Senior
Lockheed Martin Fort Worth, TX
Description: We are Lockheed Martin You will be a Data Analyst (Systems Engineer Sr) for the ISE (Integrated System Evaluation) team. Our team is part of the Systems Engineering organization. What You Will Be Doing: As a Data Analyst you will serve as a domain analyst in one of the domains listed below. As a key member of our team, you will leverage your in-depth knowledge and experience in one or more of the following domain disciplines: Weapons, Fusion, Radar, EW (Electronic Warfare), or EO/DAS (Electro-Optical Distributed Aperture System) to drive technical excellence in analysis and evaluation. In this dynamic and fast-paced role, you will assist in technical leadership to support the analysis, evaluation, and development of analytics, working closely with cross-functional teams to deliver complex systems. Key Responsibilities: • Serve as the domain lead for the Analytics and Analysis (A&A) team within ISE, providing knowledgeable guidance and expertise in one or...
Lockheed Martin
May 23, 2026
Software Engineer (Automation Framework)
Lockheed Martin Fort Worth, TX
Description: Lockheed Martin Aeronautics delivers breakthrough aircraft (F 35, F 22, F 16, AMMM, and Skunk Works®). The Framework Integration Team (FIT) is a software automation team that implements and maintains a cross platform Test Automation Framework that enables rapid, repeatable testing of flight software across multiple airframes. We are looking for a Software Engineer Sr to join our mission! What You Will Be Doing: Your responsibilities will support the technology development lifecycle, including: • Design & develop test automation infrastructure (Python driven) that integrates with a C++ codebase and supports simulated, hardware in the loop, and laboratory environments. • Create, maintain, and extend reusable tooling (open source, commercial, and in house) for continuous integration, test execution, and result analysis. • Support virtual development labs and aircraft software build pipelines, ensuring reliable delivery of test artifacts to external software teams. •...
Lockheed Martin
Apr 30, 2026
Cyber System Security Engineer Sr
Lockheed Martin Fort Worth, TX
Description: Company Overview : At Lockheed Martin, we unite passionate individuals to drive purposeful innovation, ensuring safety and solving the world's most complex challenges. Our team comprises some of the brightest minds in the industry, making Lockheed Martin an exceptional place to work. We prioritize our employees by offering many career opportunities that promote development and agility. With flexible schedules, competitive pay, and comprehensive benefits, we empower our employees to lead healthy, fulfilling lives both at work and beyond. At Lockheed Martin, we emphasize innovation, integrity, and corporate responsibility. Your mission is ours. Key Responsibilities : The Cyber Systems Security Engineer Sr will be responsible for leading a team of fellow engineers in the designing, assembly, integration, and maintenance of System Integration Lab (SIL). This includes network planning, hardware installation, software integration support, verification, and validation of...
Lockheed Martin
Jun 25, 2026
Software Architect Sr Stf - Level 5
Lockheed Martin Fort Worth, TX
Description: You will be the Software Architect Sr Stf for the Skunk Works which is responsible for collaborating with product owners, engineers, and stakeholders to translate business requirements into robust, modular solutions. What You Will Be Doing As the Software Architect Sr Stf you will be responsible for shaping the technical direction of a new and growing program, partnering with Program Management, and collaborating across multiple technical teams. Your responsibilities will include: Define and drive the overall software architecture and technical strategy. Lead design reviews and ensure alignment with program objectives. Coordinate with Program Management to translate requirements into actionable plans. Collaborate with cross‑functional technical teams to integrate solutions. Mentor and guide engineering personnel to uphold best practices. What’s In It For You We are committed to supporting your work‑life balance and overall well‑being,...
Lockheed Martin
May 15, 2026
System Architect Sr - Level 3
Lockheed Martin Fort Worth, TX
Description: You will be the System Architect Sr for the Systems Architecture team which is responsible for state of the art fighter jet flight simulators. What You Will Be Doing As the System Architect Sr you will be responsible for becoming the subject matter expert in your support areas, developing overall system designs, and guiding engineers to align with those designs. Your responsibilities will include: Become the SME for assigned aircraft simulation platforms. Develop comprehensive system designs for new products. Ensure engineering teams deliver solutions that adhere to system design specifications. Support and integrate various aircraft simulation design platforms. What’s In It For You We are committed to supporting your work‑life balance and overall well‑being, offering flexible scheduling options. Learn more about Lockheed Martin’s comprehensive benefits package here. Do you want to be part of a company culture that empowers...
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