Senior System Engineer
Redwire
Redwire Space Missions, LLC is searching for an exceptional Sr. Level Systems Engineer & Space Craft Architect to join our team in Littleton, CO and help architect the next generation of VLEO (Very Low Earth Orbit) spacecraft. This is a high‑impact technical leadership role at the heart of cutting-edge mission design—where you’ll guide full‑lifecycle spacecraft development, shape system architecture, and push the boundaries of what’s possible in VLEO operations. If you're inspired by complex missions, energized by fast paced, interdisciplinary collaboration, and eager to build spacecraft that operate where few have dared, this is your chance to help lead breakthrough innovation at the forefront of space technology. Key Responsibilities Drive the technical vision—leading system architecture creation, requirements development, design, integration, test, and verification/validation from concept to operations. Lead mission-critical milestone reviews including SRR, PDR, CDR, and TRR, ensuring the spacecraft technical baseline is strong, stable, and forward-looking. Own and shape spacecraft interfaces across component, subsystem, and system boundaries; manage ICDs and align cross-functional technical teams. Plan and execute technical reviews that solidify mission readiness and architectural integrity. Perform system-of-systems and architectural analyses to optimize spacecraft performance in unique VLEO environments. Guide the development of high-fidelity test assets—including simulations, models, analysis tools, testbeds, and GSE—for both hardware and software evaluation. Produce clear, authoritative technical documentation, policies, and procedures. Mentor and develop junior engineers, fostering technical excellence and a growth-oriented team culture. Ideal Experience Bachelor’s, Master’s, or Ph.D. in Systems Engineering, Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or related field. 10 or more years of relevant engineering experience in the space industry. Proven experience across the full space systems engineering lifecycle—from architecture and design through integration, test, and operations. Demonstrated leadership experience, guiding technical teams through complex, multi-disciplinary development. US citizenship with ability to obtain a DoD security clearance. Desired Skills Familiarity with NASA or DoD spacecraft testing: GEVS/SSC-S-016 Experience with requirements tools such as JAMA or DOORS. Proficiency with Ansys STK for mission and system analysis. Background in MBSE approaches and tools. Hands‑on experience in technical execution for spacecraft system development. Existing DoD clearance. Experience with Microsoft Project and Visio. Direct experience working with sparse gas environments in VLEO conditions. #J-18808-Ljbffr Redwire
$95.9k - $178.1k
...Unit: SpaceStandard Job DescriptionPerforms technical planning, system integration, verification and validation, cost and risk, and... ...Systems Engr-IT.Basic Qualifications• Bachelors Degree (BS) in Engineering or other technical discipline, or significant evidence of...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$95.9k - $178.1k
...shaping a new era in space and find a career that's built for you.Lockheed Martin Space is seeking an experienced Mid Career Systems Engineer Sr. to support a protected comms program, focusing on the design and integration of the Ground Segment for an advanced satellite...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$95.9k - $178.1k
...while maintaining the technical requirements of the strategic deterrence.Lockheed Martin (LM) is looking for an resourceful Systems Engineer, Senior to become a member of the Systems Engineering and Integration Team.As a Systems Engineer, Senior, you will:• Develop...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$95.9k - $178.1k
...As a member of the Integration and Test team, you will:Execute system-level tests to verify and/or validate requirements.Perform... ...Systems Engr-IT.Basic QualificationsStrong background in Systems Engineering, Integration, and Test, with experience in systems development...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$95.9k - $178.1k
...and prosperity.Join us in shaping a new era in space and find a career that's built for you. We are currently seeking a System Simulation Engineer.As a System Simulation Engineer you will work with a team of Systems, Software, and GNC Engineers in performing the following...SeniorFull timeTemporary workWork experience placementCasual workWork at officeFlexible hours$95.9k - $178.1k
...customers while maintaining the technical requirements of the strategic deterrence.Lockheed Martin Space is currently seeking a Senior Systems Engineer to support the Systems Engineering and Integration Team. The Systems Engineering and Integration Team is responsible for...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$50 per hour
...delivery, effective collaboration, and security-centric development. Additionally, we leverage Model-Based Engineering and Test Automation to enhance our system architecture, design, and testing processes. By embracing these cutting-edge technologies, we are able to rapidly...SeniorFull timeTemporary workWork experience placementCasual workWork at officeWork from homeFlexible hours$141.8k - $184.4k
...The Opportunity Ulteig is seeking a Senior System Protection Engineer to serve as a technical leader responsible for the full scope of design, development, and implementation of protective relay settings and coordination studies. You will plan, schedule, and coordinate...SeniorPermanent employmentWork at officeRemote workWork from homeFlexible hours$150k - $200k
...College, PA. Augusta, GA. Centennial, CO. Position Description: Altamira Technologies Corporation is seeking an experienced Systems Engineer/Integrator to fulfill a role with a small multi-functional team to support dynamic, mission-critical programs. Our ideal candidate...SeniorWork experience placementWorldwide$89.3k - $157.55k
...Space Systems Engineer 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...SeniorFull timeTemporary workFor contractorsWork experience placementRemote workFlexible hours$95.9k - $178.1k
...customers while maintaining the technical requirements of the strategic deterrence.The FBM Ground Test Organization is seeking a Senior Systems Engineer - Pre-Production & Deployment to join their Team in either Littleton, CO or Titusville, FL focusing on FBM developmental...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$50 per hour
...PT/Casual: FullTimeDepartment: SpaceBusiness Unit: SpaceStandard Job DescriptionThis role will support the Avionics Embedded Systems Engineering team in requirements and verification Systems Engineering of package and component level engineering. The team member will follow...SeniorFull timeTemporary workWork experience placementCasual workWork at officeFlexible hours$95.9k - $178.1k
...security and prosperity.Join us in shaping a new era in space and find a career that's built for you. We are currently seeking a Systems Engineer, Senior - Missile Performance Simulation/Analysis.As a Missile Performance Simulation Engineer, you will work with a team of...SeniorFull timeTemporary workFor contractorsWork experience placementCasual workWork at officeFlexible hours$130k - $180k
Company DescriptionJoin SEAKR Engineering, a leading-edge provider of advanced electronics for... ...an accomplished Space Electronics Systems Engineer to spearhead the design, development... ...in the space industry, or 4+ years in a senior/lead role.Technical Expertise - Deep...SeniorRemote work- Redwire Space Missions LLC seeks a Staff Ground Systems Engineer to design, integrate, and operate satellite ground systems in Littleton, CO. You will translate spacecraft requirements into detailed ground system specifications and drive end-to-end operational workflows...Senior
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- Lockheed Martin Space invites applications for an Integration and Test engineer to execute system-level tests and verify requirements across a complex multi-segment system. You will contribute to risk reduction, data integrity, and cross-functional collaboration with hardware...Senior
- Lockheed Martin in Littleton, CO, seeks a Senior Systems Engineer for Missile Performance Simulation/Analysis. You will analyze missile trajectories, perform 3DOF/6DOF simulations, and maintain simulation software while supporting data packages and stakeholder reviews....Senior
$145.1k - $269.5k
...prosperity. Join us in shaping a new era in space and find a career that's built for you.Lockheed Martin is looking for a Systems Engineer, Senior Staff to lead the Embedded PSOC SEIT efforts for a team of Systems Engineers on FBM Modernization and Sustainment Program...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$110.3k - $204.9k
...evaluate and analyze design constrains, trade-offs and detailed system and security design as they pertain to the Cyber domain.... ...development experience with DoD embedded systems•Possesses Software Engineering Knowledge to include Object Oriented Design and Development...SeniorFull timeTemporary workWork experience placementInterim roleCasual workFlexible hours$145.1k - $269.5k
...can connect us, ensuring security and prosperity.Come join Lockheed Martin’s engineering team supporting the Space Development Agency’s portfolio at Lockheed Martin Space.These critical systems provide missile warning, missile tracking, missile defense, and...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$95.9k - $178.1k
...a member of the Integration and Test team, you will: Execute system-level tests to verify and/or validate requirements. Perform risk... ...Engr-IT. Basic Qualifications Strong background in Systems Engineering, Integration, and Test, with experience in systems development...SeniorFull timeTemporary workWork experience placementFlexible hours- Lockheed Martin Space is seeking a Systems Engineer to join the Systems Engineering and Integration Team in support of FBM programs. The role focuses on requirements derivation, MBSE practices, and rigorous verification activities across design, integration, and testing...Senior
$100k - $130k
...impossible routine. Come shape the future with us. SPACE SYSTEMS At Rocket Lab, we're not just launching rockets - we'... ...the boldest and most ambitious space missions. SENIOR SYSTEM TEST ENGINEER I Based out of Rocket Lab's office in Littleton, CO,...SeniorPermanent employmentWork at officeLocal area- Lockheed Martin is seeking a seasoned Systems Engineer to perform technical planning, system integration, verification and validation, and cost and risk analyses across the full system life cycle. The role emphasizes translating customer requirements into hardware and...Senior
$110k - $155k
Stellar Solutions in Littleton, Colorado, is looking for a Systems Engineer (Sr/Staff) to support the Artemis program within the Mission Integration Team. Key responsibilities include spacecraft mission design, test campaign execution, and troubleshooting hardware/software...Senior$95.9k - $178.1k
...amazing new technologies to our customers while maintaining the technical requirements of strategic deterrence.We are seeking a Systems Engineer, Senior to support the integration between the System Security Engineering (SSE) and Reentry System Program Teams. The successful...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours- Lockheed Martin Space in Englewood, CO is seeking an experienced Systems Engineer to lead technical planning, system integration, verification and validation across the full lifecycle of space systems. You will translate customer requirements into robust hardware and software...Senior
- United Launch Alliance in Denver is seeking a Range Safety/FAA Coordinator for System Safety Engineering. You will focus on safety requirements management, support licensing, and lead safety-related deliverables, collaborating across programs and customers. The role requires...Senior
$145.1k - $269.5k
...Protection Programs seeks a seasoned technical leader to head the System Performance, Software, and Simulation (S3) group on a... ...required.Basic QualificationsSignificant software and systems engineering experience in at least one of the following domains:Flight‑software...SeniorFull timeContract workTemporary workWork experience placementCasual workFlexible hours
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