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106 senior software engineer level 3 jobs found

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Lockheed Martin
Aug 18, 2026
Senior Software Engineer, Level 3
Lockheed Martin CO
Standard Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.     At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.   Join us in shaping a new era in space and find a career that's built for you.   Lockheed Martin Space is seeking a full time Software...
Lockheed Martin
Aug 07, 2026
Senior Software Engineer, Level 3 - Embedded - Clearance Required
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Space Protection Programs is seeking an experienced Software Engineer who can guide a...
Lockheed Martin
Aug 07, 2026
Senior Software Engineer, Level 3 - Clearance Required
Lockheed Martin Houston, TX
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin Space is seeking a full time Software Engineer. In this role, you will...
Lockheed Martin
Jul 18, 2026
Senior Software Engineer, Level 3 - Clearance Required
Lockheed Martin Houston, TX
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin Space is seeking a full time Software Engineer. In this role, you will...
Lockheed Martin
Jul 02, 2026
Senior Software Engineer - Level 3 (TS/SCI with Poly)
Lockheed Martin King of Prussia, PA
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you We're seeking a talented and motivated Senior Software Engineer to join our fast-paced...
Lockheed Martin
Jun 02, 2026
Senior Software Engineer - Level 3 (TS/SCI with Poly)
Lockheed Martin King of Prussia, PA
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you We're seeking a talented and motivated Senior Software Engineer to join our fast-paced...
Lockheed Martin
Jun 02, 2026
Senior Software Engineer, Level 3
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Space Protection Programs is seeking an experienced Software Engineer who can guide a...
Lockheed Martin
May 27, 2026
Senior Software Engineer, Level 3
Lockheed Martin Houston, TX
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin Space is seeking a full time Software Engineer. In this role, you will...
Lockheed Martin
May 27, 2026
Senior Software Engineer, Level 3
Lockheed Martin Houston, TX
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin Space is seeking a full time Software Engineer. In this role, you will...
Lockheed Martin
Jul 02, 2026
Senior Software Systems Engineer - Level 3
Lockheed Martin King of Prussia, PA
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re re-imagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. The Software Systems Engineer will use Model-Based Systems Engineering (MBSE)...
Lockheed Martin
Jun 10, 2026
Software Quality Engineer Senior- Level 3
Lockheed Martin Fort Worth, TX
Description: In this position, you will be Responsible for implementing the Software Quality Engineering (SWQE) mission to ensure programs have and are compliant to documented processes which meet customer and company requirements and are capable of producing quality software products. The successful applicant will do this, with limited supervision, by performing process, product, supplier, special quality evaluations/audits, and test verification/validation oversight throughout the software development lifecycle as well as using quality sciences to identify, communicate and drive to resolution needed improvements to software development processes and activities. They will provide SWQE management with metrics, reports, schedules, Basis of Estimates (BOEs) for tasking and other support as necessary. SWQE will develop and deploy standard software quality procedures and quality engineering methods and instruments. They must be willing to travel, ability to work off-shift and...
Arrow Electronics
Sep 15, 2026
AWS Cloud Engineer
Arrow Electronics Bengaluru, Karnataka, India
Position: AWS Cloud Engineer Job Description: What you'll be doing: The Senior Infrastructure Engineer will be a primary AWS cloud SME within our Support\development organization with a strong level of expertise in AWS IaaS\SaaS\PaaS. Ensure that all AWS cloud solutions follow internally defined security and compliance controls Design and plan enterprise-scale AWS environments including application dependencies, data storage and flow, network connectivity and overall cloud hosting. Design and configure architectural templates to depict infrastructure Architecture. What we're looking for: Providing data and root cause analysis for each service impacting incident with all possible actions for improvement or resolution. Occasional, weekend on-call support. Provide extensive support AWS AD space for App Registrations. In-depth knowledge of SSO and MIM in Microsoft Azure cloud. Participate in the design and migration of system environments on our MS Azure...
Lockheed Martin
Sep 14, 2026
Software Engineer Sr - E3
Lockheed Martin TX
Standard Job Description As the CAD/CAM Senior Engineer- Level 3 within Software Engineer organization, you will be responsible for integrating advanced AI capabilities into our CAD/CAM workflows and supporting cross‑functional aerospace design teams. Your responsibilities will include: Design, Analysis, and integrate generative AI tools (e.g., design assistants, topology optimization engines) into existing CAD/CAM workflows. Create and maintain prompt‑engineering libraries and best‑practice guides for AI‑assisted modeling, simulation, and documentation. Evaluate AI model performance on accuracy and latency, and recommend improvements. Provide day‑to‑day technical assistance to aerospace design teams, ensuring AI‑augmented solutions improve productivity and quality. Author and update methods, standards, processes, and training material that incorporate AI workflows. Proficient in AI prompting as it applies to this position and practice.  Plans, conducts, and...
SAIC
Sep 02, 2026
GEOINT Systems Engineer
SAIC VA
Description SAIC is seeking GEOINT Systems Engineer to support SAIC's Prime Program, Aretuza in Chantilly, VA. Aretuza is a SETA program, supporting the NRO's Ground Enterprise Directorate (GED). As the GEOINT Systems Engineer you will interact daily with senior government and Program staff to analyze new concepts and technologies; support the definition and baselining of new capabilities and/or enhancements; advise on all aspects of System Engineering analysis (architecture, requirements, Concept of Operations (CONOPs), interfaces, schedule, and dependency identification); test support, and provide Readiness Event support. Responsibilities to include Collaborate daily with development contractors, government program personnel, and customers on systems engineering and acquisition functions for GEOINT collection, mission management, and mission processing. Provide oversight and monitor software development and integration activities, ensuring alignment with...
SAIC
Aug 26, 2026
Senior Principal Lead Software Engineer
SAIC CO
Description SAIC is seeking an experienced Senior Principal Lead Software Engineer onsite in Colorado Springs, CO to serve as the Software Lead for multiple mission-critical software development projects. Reporting directly to the Lead Systems Engineer, you will be responsible for providing guidance, technical direction, and leadership across several software development efforts in a rapid prototyping environment. This role will balance hands-on technical contributions, team leadership, and input on software development best practices at the project level. This position focuses on leading and delivering software efforts for multiple projects, while also collaborating with the broader technical organization to define and refine software development standards, practices, and tools for consistent implementation across the program. Responsibilities: Project-Specific Leadership and Delivery: Lead software design, development, and testing for 2-4 mission-critical projects,...
SAIC
Aug 26, 2026
Senior Systems Sustainment Administrator
SAIC VA
Description SAIC is looking for a Senior Systems Engineer to serve as a Senior Systems Administrator with experience in US Navy IT networks to support the sustained operation and maintenance of a newly deployed US Navy enterprise transport network, ensuring 24/7/365 availability and reliability. The position will support end-to-end network, system, and element visibility; facilitate rapid operations, administration, maintenance, and provisioning to maintaining the operational integrity of a mission-critical network, requiring both technical expertise and a commitment to excellence in service delivery. This position will work a schedule of 7AM - 3PM, 5 days per week to include weekends and a rotating on call requirement. Work will be performed at the Navy customer's site in Suffolk, VA. Specific duties include: Provide Tier 3 level engineering operations support to quickly identify, triage, and address outages, analyzing symptoms and potential root causes to implement...
Arrow Electronics
Aug 21, 2026
Senior Engineer Advanced Flight Management System (FMS) Aerospace
Arrow Electronics Bengaluru, Karnataka, India
Position: Senior Engineer Advanced Flight Management System (FMS) Aerospace Job Description: Role Summary: We are looking for an experienced Senior Software Engineer to join our Advanced Flight Management System (FMS) team. The ideal candidate will have strong avionics software development experience, mandatory hands-on experience in Flight Management Systems, and expertise in developing safety-critical software in a DevOps environment. The role requires ownership of product quality, collaboration with multidisciplinary teams, and a mindset focused on delivering optimized and efficient solutions. Key Responsibilities: • DO178 Level A verification experience  • V ery good knowledge on C++.  • Display products experience will be plus • Design, develop, integrate, and verify safety-critical FMS software. • Work in a DevOps environment, contributing to CI/CD and continuous improvement. • Own product quality and ensure compliance with DO-178B/C standards. •...
SAIC
Aug 19, 2026
Senior Software Engineer
SAIC MD
Description SAIC is seeking an experienced Software Engineer to support a mission-critical modernization program delivering a modular, adaptable software suite of essential capabilities across multiple warfighting functions. In this role, you will serve as a core technical contributor responsible for designing, developing, testing, and delivering high-performance software solutions that meet complex operational requirements across a modern, open-architecture platform spanning enterprise cloud and tactical edge environments. This position operates across cloud and tactical edge environments, supporting software design, development, and validation across the full software development lifecycle - from initial architecture through fielding - in both garrison and deployed settings, including Denied, Degraded, Intermittent, and Low Bandwidth (DDIL) environments. The work is to be performed at the customer site at Aberdeen Proving Ground (APG), MD. This role is contingent upon...
SAIC
Aug 19, 2026
Cybersecurity Engineer
SAIC MD
Description SAIC is seeking an experienced Cybersecurity Engineer to support a mission-critical modernization program delivering a modular, adaptable software suite of essential capabilities across multiple warfighting functions. In this role, you will serve as the technical authority responsible for designing, implementing, and maintaining a robust cybersecurity posture across a modern, open-architecture platform spanning enterprise cloud and tactical edge environments. This position operates across cloud and tactical edge environments, supporting cybersecurity architecture, implementation, and continuous monitoring across the full software development lifecycle - from initial design through fielding - in both garrison and deployed settings, including Denied, Degraded, Intermittent, and Low Bandwidth (DDIL) environments. The work is to be performed at the customer site at Aberdeen Proving Ground (APG), MD. This role is contingent upon award news in Fall 2026. Key...
Lockheed Martin
Aug 18, 2026
ASIC & FPGA Design Engineer
Lockheed Martin NY
Standard Job Description Develops, designs, verifies, and documents Application-Specific Integrated Circuits (ASIC) and Field Programmable Gate Arrays (FPGA) development. Determines architecture design, logic design, and system simulation. Assignments include the analysis of all aspects from high-level design to synthesis, place and route, and timing and power utilization. Typically uses specialized equipment to establish operation data, conduct experimental tests, and evaluate results.   What We're Doing At Lockheed Martin, we are passionate about innovation and integrity. We believe that by applying the highest standards of business ethics and forward-thinking, everything is within our capacity – and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training, education, and background! The Work As an FPGA Engineer you will;  • Perform complex FPGA firmware architecture and/or custom digital board designs. • Design digital signal processing,...
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