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XSITE LLC · 3 months ago

Submarine Senior Systems/Platform Engineer

San Diego, CA, US

Full-time

Hybrid

Senior Level, Lead/Staff

$125K/yr - $150K/yr

10+ years exp

XSITE LLC is seeking a Lead Systems Engineer / Platform Architect to set technical direction and own the architectural baseline for submarine platform capabilities at the hardware–software boundary. This role emphasizes leadership, decision-making, and stakeholder alignment, while driving requirements, architecture, and interface governance.

Industrial EngineeringProject ManagementTechnical Support

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Own the technical baseline: Define and evolve CONOPS, system architecture, and interface control; maintain traceability from mission needs to verification evidence

Lead integration by influence: Orchestrate HW/SW integration across labs, SIL/HIL, and shipboard environments; set entry/exit criteria and readiness gates

Governance & decision-making: Chair or support design reviews (SRR/SDR/PDR/CDR), TIMs, CCBs, and technical risk boards; run trades and document decisions

Requirements leadership: Establish verification strategies and allocation; ensure requirements and ICDs remain synchronized with delivered capability

Stakeholder liaison: Serve as the primary technical POC with Navy customers, primes, and suppliers; align roadmaps, constraints, and test/sealift schedules

Quality & reliability oversight: Direct teams building diagnostics, regression suites, and observability; ensure platform reliability and performance targets are met

Digital/MBSE leadership: Guide SysML modeling, model governance, and alignment with requirements/data artifacts (e.g., DOORS/Jama ↔ Cameo/MagicDraw)

Cyber & networks coordination: Oversee integration for tactical networks and platform cyber posture (RMF/ATO considerations, DISA STIG/SRG alignment)

Plan the lifecycle: Shape the SEMP, V&V/TEMP approach, integration plans, and sustainment strategies; measure progress with meaningful technical metrics

Qualification

Systems engineeringArchitecture governanceIntegration leadershipRequirements managementMBSE/SysML practicesCybersecurity awarenessStakeholder managementCommunication skillsTeam leadershipProblem-solving

Required

Bachelor's in Engineering, Computer Science, Information Systems, Applied Science, Physics, or related field

10+ years in systems/platform engineering with 5+ years leading multi-disciplinary teams or major subsystems

Demonstrated ownership of system architecture, ICDs, and requirements for complex, safety- or mission-critical systems

Experience leading integration and V&V across embedded devices, onboard servers, and tactical networks

Proficiency with requirements management (e.g., DOORS/Jama) and MBSE/SysML practices and governance

Strong communication and stakeholder management skills; proven record presenting to government customers and leadership

U.S. Citizenship; Secret clearance (TS/SCI preferred)

Preferred

Undersea/maritime domain experience (submarine C5I, combat systems, edge compute)

Knowledge of open architecture standards (e.g., SOSA, CMOSS, OMS/UCI) and deterministic comms (MIL-STD-1553, CAN, RS-422/485)

Familiarity with DevSecOps/CI/CD at the platform level and enterprise/tactical networking (routing, VLANs, QoS)

Cybersecurity/RMF/ATO awareness (DISA STIGs/SRGs) and supply/supplier integration oversight

Exposure to HIL/SIL, digital twins/simulation, and reliability engineering

Benefits

100% employer-paid health, dental, and vision coverage

401(k) with 6% match

Industry-leading PTO package

Continuing education reimbursement

Hybrid onsite/remote work environment

Company

XSITE LLC

XSITE is a Service-Disabled Veteran-Owned Small Business delivering innovative solutions across AI/ML, model-based systems engineering, software development, and simulation.

Founded in 2014

San Diego, California, USA

11-50 employees