Senior Systems Engineer (TS/SCI) – Missile Warning/Tracking

Energy Jobline ZR; El Segundo (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

MainSAIL Group is seeking a Lead Systems Engineer (SME) to provide senior technical advisory support to the United States Space Force, Space Systems Command, Space Sensing, and related programs. The role focuses on missile warning/tracking architectures, system integration, testing, and operational readiness.

The candidate will lead complex engineering efforts, review contractor work, identify technical risks, and present decision-quality recommendations to Government leadership.

Qualifications

• U.S. clearance: TS/SCI active.
• 13–15+ years of professional engineering with significant systems engineering responsibilities.
• Experience in Security Space, Missile Warning, Missile Tracking, OPIR programs.
• Ability to provide technical recommendations to senior Government leadership.
• Strong technical writing, presentation, analytical, and communication skills.

Responsibilities

• Serve as senior technical advisor to Government leadership on missile warning and tracking architectures, systems, and acquisitions.
• Lead evaluation of baselines, requirements, interfaces, and mission performance across space, ground, comms, and processing segments.
• Assess contractor products for compliance with Government requirements and mission objectives.
• Provide independent assessments of maturity, risk, readiness, affordability, and schedule execution.
• Support technical planning and execution of major acquisition milestones and design reviews.
• Mentor junior and mid-level engineers and lead cross-org teams.

Skills

Systems engineering

Technical leadership

Technical writing

Communication skills

Mentoring

Education

Bachelor’s/Master’s degree in Engineering or related field

Tools

MBSE

Job description

MainSAIL Group is seeking a Lead Systems Engineer (SME) to provide senior technical advisory support to the United States Space Force, Space Systems Command, Space Sensing, and related programs. The role focuses on missile warning/tracking architectures, system integration, testing, and operational readiness.

The candidate will lead complex engineering efforts, review contractor work, identify technical risks, and present decision-quality recommendations to Government leadership.