Lead Systems Engineer (SME) - Missile Warning/Missile Tracking
MAINSAIL Group
Job Description
Job Description
Mainsail is seeking a Lead Systems Engineer (SME) to provide senior-level technical advisory support to the United States Space Force (USSF), Space Systems Command (SSC), Space Sensing (SN), System Delta 84 (SYD 84), Missile Warning/Missile Tracking Program .
SYD 84 acquires and sustains Overhead Persistent Infrared (OPIR) and Weather capabilities supporting U.S. military and intelligence community missions. This position serves as a senior technical advisor to Government leadership, providing enterprise-level systems engineering expertise supporting Missile Warning and Missile Tracking architectures, acquisitions, integrations, testing, and operational readiness.
The successful candidate will independently lead complex engineering efforts, assess contractor execution, identify technical risks and opportunities, influence program strategy, and provide decision-quality recommendations to Government engineering, acquisition, and senior leadership.
Job Description
- Serve as a senior technical advisor to Government leadership on Missile Warning and Missile Tracking architectures, systems, and acquisition efforts.
- Lead evaluation of technical baselines, requirements, interfaces, operational concepts, and mission performance across space, ground, communications, and mission-processing segments.
- Assess contractor engineering products, design solutions, and technical performance for compliance with Government requirements and mission objectives.
- Provide independent assessments of program technical maturity, risk posture, mission readiness, affordability, and schedule execution.
- Evaluate system requirements, architectures, trades, verification strategies, and design changes affecting enterprise mission performance.
- Support technical planning and execution of major acquisition milestones, design reviews, readiness reviews, and program decision events.
- Identify technical risks, integration challenges, and cross-program dependencies and provide mitigation recommendations.
- Conduct engineering analyses, trade studies, and technical assessments supporting Government acquisition and engineering decisions.
- Support integration activities spanning spacecraft, payloads, ground systems, mission processing, communications, and external mission partners.
- Review System Engineering Plans, Interface Control Documents, test documentation, architectural products, and contractor deliverables.
- Develop executive-level technical briefings, reports, white papers, and recommendations.
- Mentor junior and mid-level engineers and provide technical leadership across integrated Government and contractor teams.
Required Qualifications
- U.S. Citizen.
- Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance.
- Bachelor's or Master's degree in Aerospace Engineering, Systems Engineering, Electrical Engineering, Mechanical Engineering, Physics, Mathematics, Computer Engineering, Computer Science, or a related technical field.
- 13-15+ years of professional engineering experience with significant systems engineering responsibilities.
- Extensive experience supporting National Security Space, Missile Warning, Missile Tracking, Missile Defense, or OPIR programs.
- Demonstrated expertise in systems engineering, integration, test, requirements development, and technical risk management.
- Experience providing technical recommendations to senior Government leadership.
- Experience leading complex engineering assessments across multiple organizations and stakeholders.
- Strong technical writing, presentation, analytical, and communication skills.
Desired Qualifications
- Experience supporting SSC Space Sensing, Space Systems Command, Space Force, Air Force, or other DoD acquisition organizations.
- Experience supporting MEO, GEO, Polar, FORGE, Future OPIR, or related programs.
- Experience with digital engineering and MBSE approaches.
- Experience supporting ACAT acquisition programs.
- Experience supporting architecture development and enterprise integration efforts.
- Experience leading contractor technical evaluations and source-selection support activities.
Desired Technical Specialties
- Missile Warning Architectures
- Missile Tracking Architectures
- OPIR Systems
- Mission Integration
- Enterprise Systems Engineering
- System Architecture Development
- Technical Risk Management
- Ground Systems Integration
- Test and Evaluation
- Space Vehicle and Payload Engineering
- MBSE and Digital Engineering
- SETA Support to Government Acquisition Programs
Desired Certifications
- International Council on Systems Engineering (INCOSE) Associate Systems Engineering Professional (ASEP) or Certified Systems Engineering Professional (CSEP) certification.
- Project Management Institute (PMI) Project Management Professional (PMP) certification.
- Defense Acquisition University (DAU) certification in Systems Engineering, Program Management, or related acquisition disciplines.
Working Conditions
- Dynamic office environment supporting Government acquisition, mission integration, and engineering activities.
- Regular participation in technical reviews, cross-program working groups, and Government meetings.
- Frequent coordination with Government, FFRDC, SETA, and contractor organizations across multiple programs and mission areas.
- Occasional support outside normal business hours to accommodate program milestones, integration events, testing activities, operational exercises, or mission-critical activities.
- Travel up to approximately 10% in support of Government objectives.
Company Description
MAINSAIL Group provides systems engineering and technical assistance, advisory and assistance services, and program management support to Air Force, Space Force and Navy customers. MAINSAIL and its joint ventures manage Secret, Top Secret, SCI and Special Access Program requirements at customer sites across the United States.
\nCompany DescriptionMAINSAIL Group provides systems engineering and technical assistance, advisory and assistance services, and program management support to Air Force, Space Force and Navy customers. MAINSAIL and its joint ventures manage Secret, Top Secret, SCI and Special Access Program requirements at customer sites across the United States.
Company Description
MAINSAIL Group provides systems engineering and technical assistance, advisory and assistance services, and program management support to Air Force, Space Force and Navy customers. MAINSAIL and its joint ventures manage Secret, Top Secret, SCI and Special Access Program requirements at customer sites across the United States.
- ...Description Mainsail is seeking a Senior Systems Engineer to provide technical advisory... ...(SN), System Delta 84 (SYD 84), Missile Warning/Missile Tracking Program . SYD 84 acquires and... ...The successful candidate will lead assigned engineering efforts, evaluate...SuggestedFor contractorsWork at office
$151.3k - $226.9k
...satellite launch ground and cyber systems for defense civil and... ...and range systems. The Missile Warning mission is undergoing its biggest... ...of missile warning and tracking satellites in medium Earth... ...Warning & Tracking (MWT) Lead SEIT Engineer you will play a pivotal role...SuggestedFull timeFor contractorsWork at officeImmediate startRemote workRelocation packageFlexible hoursShift work- ...Description Job Description Mainsail is seeking a Lead Systems Engineer (SME) to provide senior-level technical advisory support... ...Infrared (OPIR) capabilities supporting strategic missile warning, missile tracking, battlespace awareness, and integrated deterrence missions...SuggestedFor contractorsWork at office
- ...next generation of resilient Missile Warning (MW), Tactical Intelligence,... ...verify, and validate these systems,andidentify areas requiring... ...clearance ~ Bachelor’s degree in Engineering, Mathematics, Physics,... ...&E) programs as part of the Lead Development Test Organization...SuggestedTemporary workFor contractorsRemote work
- ...Castelion is seeking a Senior Thermal Engineer to own the thermal engineering methodology across missile systems. You will define thermal architectures, develop high‑fidelity models, and perform first‑principles analysis, simulation, and hardware testing to ensure reliability...Suggested
- ...analysis, verification, and validation of complex space and ground software/hardware systems, ensuring readiness for operational testing and certification per DoD processes. You will lead DT&E activities, coordinate with government agencies, primes, and testing teams,...Remote work
- ...Technical Baseline Manager to connect mission requirements with system interfaces and MBSE products. You will guide design decisions... ...and industry partners. The role emphasizes rigorous systems engineering, documentation, and cross-functional coordination to keep mission...
- Vantor is seeking a Technical Baseline Manager to connect mission requirements, system interfaces, and MBSE products into a clear technical baseline. You will help program leaders understand design decisions, assess issues, and align acquisition across complex space sensing...
$175k - $225k
...edge of technology, and make systems smarter, faster, and safer... .... From entry-level engineers to mission program leads, we create space for every... ...Certification Subject Matter Expert (SME) Systems Engineering... .... From hypersonics and missile defense to hardened...Contract workFor contractorsWork experience placementWork at office$177k - $265.6k
...to work on revolutionary systems that impact people's lives... ...Sector is seeking a System Engineer Level 5 - Mission Operations SME to join our team in Redondo... ...you’ll get to do: Lead the definition of how to execute... ...handover. Proven track record leading the technical...Full timeRelocation packageMonday to ThursdayFlexible hoursShift workNight shift$220k - $300k
...of $1 billion in funding from leading investors including 8VC Accel and... ...: CHAOS is seeking a Chief Engineer to own the technical direction of our long range missile program from concept and architecture... ...authority for missile system architecture requirements and design...Full timeWork experience placementCasual workRelocation package$126k - $162k
...Senior Systems EngineerStellar Solutions is seeking a Senior Systems Engineer to support a Government customer's space systems... ...mission. This role will lead systems engineering... ...space-based remote sensing, missile warning, missile tracking, environmental monitoring,...Remote work$117.3k - $226.9k
...Resilient Ground Architecture Systems EngineerThe Aerospace... ...(RGA) Systems Engineer with mission experience... ...within SSC's Strategic Missile Warning (MW) Ground... ...assessmentProven ability to lead and thrive in multi-disciplinary... ...the Missile Warning / Tracking mission area, bonus...Full timeFor contractorsWork at officeImmediate startRemote work- ...Senior Space Systems EngineerAstrion is seeking an... ...Senior Space Systems Engineer to join the Space Support... ...integrationProven ability to lead multidisciplinary... ...SATCOM, PNT, Missile Warning, TacISR, Launch, and BMC... ...include schedule, OKR tracking, and PMR chartsConduct...For contractors
$122.8k - $184.2k
...opportunities to work on revolutionary systems that impact people's lives around... ...seeking a System Deployment Capability Lead Sr. Principal Systems Engineer - Level 4) to join the team located... ...for Intercontinental Ballistic Missile (ICBM,) Ground and Airborne Launch Control...Full timeMonday to ThursdayShift work$146.2k - $215k
...and Data Handling (C&DH) Engineer - Millennium Space Systems Company: Millennium... ...to global security, like missile warning and Earth observation.... ...a subject matter expert (SME) for C&DH, driving complex... ...management requirements Lead the selection and trade analysis...Permanent employmentWork experience placementInterim roleCurrently hiringRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift work$180k - $215k
Overview Systems Planning and Analysis, Inc. (SPA) delivers... ...architectural assessments, systems engineering and integration, test,... ...for the Resilient Missile Warning/Missile Track (MW/MT) architecture. Interact... ..., and Readiness Reviews. Lead MW/MT Architecture...Full timeTemporary workFor contractorsImmediate startFlexible hours$142.2k - $213.4k
...Staff System Engineer-Configuration ManagementRELOCATION ASSISTANCE: Relocation... ...and forge industry-leading partnerships that set new standards... ...are properly controlled, tracked, and documented for the... ...with Expendables/One time use missiles.Experience with the DoD acquisition...Contract workFor subcontractorRelocation packageFlexible hoursShift work- ...Overview Systems Planning and Analysis, Inc. (SPA) delivers high... ...architectural assessments, systems engineering and integration, test,... ...for a Systems Engineer - Senior/SME. Responsibilities The Journeyman Systems Engineer leads technical tasks within a project...Full timeFlexible hours
$165k - $265k
...Lead Software Engineer, Application Software (Finance) Hawthorne, CA SpaceX was founded under... ...finance software team is the central nervous system of SpaceX’s financial operations – we... ...continuous improvement Manage and track multiple priorities while maintaining a...Permanent employmentFull timeTemporary workFor contractorsInternshipWeekend work- ...Systems Planning and Analysis, Inc. (SPA) is seeking a Senior Systems Engineer/SME in the Space Systems Group (SSG) to lead modeling, analyses, and integration efforts for national security programs. You will develop requirements, run simulations, and guide cross-functional...
$21.15 - $30.77 per hour
Part-Time Mission Analysis Engineer - Millennium Space Systems Company: Millennium Space Systems... ...direct impact to global security, like missile warning and Earth observation. The... ...EO/IR image processing or inertial tracking. They are key stakeholders in the...Permanent employmentPart timeInternshipRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift workDay shift- ...Astrion seeks a Senior Aerospace Engineer to provide SETA support to Space Systems Command at Los Angeles AFB, covering acquisition, development, integration... ..., sustainment, and modernization of space-based missile warning and related capabilities. The role requires...
$75.8k - $144.2k
...analysis of integrated space systems and capabilities.What You Will... ...) to understand space and missile system integration interfaces... ...algorithms to improve detection, tracking, data correlation and data... ...Contribute knowledge of performance engineering practices and procedures to...Temporary workWork experience placementLocal areaFlexible hours- ...Northrop Grumman’s Space Systems Sector seeks a System Engineer Level 5 - Mission Operations SME in Redondo Beach, CA. The role demands leadership in defining execution of complex mission sets, CONOPS development, and translating concepts into actionable procedures and...
$86.8k - $198k
Systems EngineerThe Opportunity:Are you looking for an opportunity to combine your technical... ...part of delivering a customer-focused engineering solution. If this sounds like you, come... ...fieldNice If You Have:Knowledge of Missile Warning and OPIRPossession of excellent...Full timeContract workPart timeWork at officeLocal areaRemote work$107.1k - $157.5k
...Company Millennium Space Systems Millennium Space Systems,... ...to global security, like missile warning and Earth observation. Our... ...seeking a Quality Systems Engineer to develop, lead, and continuously improve... ...requirements Develop and track KPIs related to tool control...Permanent employmentInterim roleCurrently hiringRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift work$160k - $200k
...Posted: 2026-08-31 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-Time... ...development experience Experience leading combined hardware and software... ...systems, including Navigation, Missile Warning, and NDS systems design,...Full timeFor contractorsWork at officeImmediate startRemote workShift work$86.8k - $198k
...Job Number: R0243282 Systems Test Engineer The Opportunity: Are you looking for an opportunity... ...As a Systems Test Engineer you will lead a test team that will work with Booz... ...the next generation of resilient Missile Warning ( MW ) capabilities to deter attacks...Full timeContract workPart timeWork at officeLocal areaRemote work$137k - $275k
...Senior Principal Tracking Systems EngineerAt Raytheon, the foundation of everything we do is rooted... ...100 years of experience and renowned engineering expertise to meet the needs of today's... ...an Individual Contributor, Technical Lead, or both, specific to furthering advanced...Full timeTemporary workWork experience placementFor subcontractorRelocationFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Lead Systems Engineer (SME) - Missile Warning/Missile Tracking. Be the first to apply!
- lead operating engineer El Segundo, CA
- lead engineer El Segundo, CA
- gps systems engineer El Segundo, CA
- healthcare systems engineer El Segundo, CA
- senior staff systems engineer El Segundo, CA
- senior linux systems engineer El Segundo, CA
- space systems engineer El Segundo, CA
- system performance engineer El Segundo, CA
- software system engineer El Segundo, CA
- operations support system engineer El Segundo, CA





