Senior Systems Engineer

Infinity’s niche in the aerospace and defense industry is specialized solutions that help bridge the gap between space and ground. This is no small task, and we owe our success to our team who help us fulfill our mission—to match people with their legacies for betterment of the world. There is always a place at Infinity for a motivated, capable individual seeking a career to better the world.

We prioritize supporting our team through exceptional benefits, work‑life balance, and structured career development.

* Please note, this position is contingent based on program award.*

Infinity is seeking a Senior Systems Engineer to support the Ground Based Radar Digitization (GBRD) program, a critical modernization effort transforming eight Ground Based Radars for NORAD, USSTRATCOM, and USSPACECOM. This position requires a proven systems engineering expert to support complex technical activities, drive MBSE implementation, manage critical interfaces, and ensure successful delivery through operational acceptance. The Senior Systems Engineer will provide technical expertise to the SEI Working Group, mentor engineering staff, and coordinate with government stakeholders including Space Systems Command and Mission Deltas.

Requirements Engineering & Architecture

• Lead requirements decomposition and maintain Integrated Requirements Specifications (IRS) with bidirectional traceability
• Define performance requirements, acceptance criteria, and verification approaches for assigned areas
• Develop and maintain Interface Control Documents (ICDs) and Interface Definition Documents (IDDs)
• Facilitate requirements working groups with government, contractors, and mission stakeholders
• Support Common Architecture Governance Board (CAGB) activities and drive Modular System Interfaces enabling cross‑vendor interoperability
• Integrate cybersecurity architecture requirements (Zero Trust, defense‑in‑depth) into technical baseline

Model‑Based Systems Engineering (MBSE)

• Develop comprehensive MBSE models using Cameo Systems Modeler conforming to SSC SysML Style Guide
• Create DoDAF 2.0 architecture products (OV, SV, CV, StdV views) and lead model‑based requirements allocation
• Coordinate bi‑weekly model integration with third‑party MBSE validator and ensure conformance to SSC standards and MOSA principles
• Support integration of MBSE models with government's Integrated Digital Environment (IDE)
• Mentor junior and mid‑level engineers in MBSE methodologies

Technical Integration & Verification

• Provide senior‑level technical support to integration activities across RF front‑end, digital beamforming, and signal processing
• Support performance integration testing campaigns at the Digital Systems Integration Lab (DSIL)
• Develop Integration Test Plans, Performance Test Procedures, and define test scenarios aligned with system requirements
• Support hardware‑in‑the‑loop and software‑in‑the‑loop integration strategies and interface verification
• Analyze test data and generate performance assessment reports against Technical Performance Measures (TPMs)
• Support troubleshooting of integration issues and coordinate resolution across multi‑disciplinary teams
• Conduct trade studies on technical architecture options and implementation approaches

Technical Reviews & Risk Management

• Support System Requirements Review (SRR), Preliminary Design Review (PDR), Critical Design Review (CDR), and milestone events
• Present integration test results and prepare technical presentations for government and stakeholder audiences
• Develop entrance/exit criteria for technical reviews and track action items through closure
• Identify, assess, and document technical risks with mitigation strategies; perform impact analysis for engineering changes
• Track Technical Performance Measures (TPMs) and maintain technical baselines in government repositories
• Lead technical planning activities and develop integrated test schedules

Stakeholder Coordination & Leadership

• Interface with government Program Office, Mission Deltas, Space Systems Command, and mission stakeholders
• Support coordination with MDA/DE, ITW/AA, and DSIL staff for test environment configuration and execution
• Brief…