Senior Space Systems Engineer – Acquisition & Integration

Overview

Stellar Solutions, a nationally recognized Great Place To Work® delivers engineering solutions across commercial space and national security missions—from innovative new entrants to established government and aerospace organizations.

We bring talented, energetic, and immediately productive professionals to meet critical customer needs in systems engineering and integration, mission operations, program management, acquisition support, and strategic planning—helping our customers deliver resilient mission capability with speed, quality, and technical excellence.

Stellar Solutions is seeking a Senior Space Systems Engineer – Acquisition & Integration to support a proposed national security space program. This position provides senior systems engineering, technical advisory, and acquisition support to government program offices responsible for delivering next-generation Space-Based Sensing and Targeting (SBST) capabilities.

The successful candidate will serve as a trusted technical advisor, working alongside government leadership, systems engineers, acquisition professionals, development contractors, FFRDCs, and mission stakeholders to guide technical planning, architecture assessments, systems integration, acquisition strategy, and transition of capabilities from development into operational use. Depending on customer priorities, the role may support space, ground, mission processing, data transport, cloud/edge computing, and operational mission environments.

This is an opportunity to help shape the future of national security space. Working alongside government leaders, industry partners, and technical experts, you'll influence the engineering, acquisition, and integration decisions that bring next-generation space capabilities from concept to operational reality.

Key Responsibilities

• Provide senior systems engineering and program office advisory support for Space-Based Sensing and Targeting (SBST), Environmental Monitoring, AMTI, GMTI, mission-data transport, ground processing, and related space-based sensing capabilities.
• Advise government program offices on technical planning, acquisition strategy, systems engineering, requirements development, architecture evolution, development oversight, integration activities, test planning, and transition-to-operations efforts.
• Lead coordination across government organizations, prime contractors, FFRDCs, developers, and mission stakeholders to resolve technical issues, identify risks, and support successful program execution.
• Lead development and review of system requirements, technical specifications, architecture products, interface documentation, security constraints, risk registers, Plans of Action & Milestones (POA&M) s, and acquisition decision materials.
• Evaluate system interfaces, software and hardware changes, ground-system integration, mission-data flows, operational workflows, and technical tradeoffs while providing recommendations to government leadership.
• Assess operational suitability, mission readiness, and sustainment planning as capabilities transition from development and test into operational environments.
• Support acquisition milestones, engineering reviews, readiness assessments, technical interchange meetings, contractor technical reviews, and executive decision forums through independent technical analysis and recommendations.
• Develop executive-level technical reports, briefings, risk assessments, technical analyses, and decision-support products for senior government leadership.
• Mentor junior engineers and provide technical guidance across multidisciplinary engineering and acquisition teams.
• Collaborate across systems engineering, mission integration, acquisition support, digital engineering, mission assurance, and mission-performance organizations to support successful delivery of mission capabilities.
• Support additional systems engineering and technical advisory activities as assigned.

Required Qualifications

• Bachelor's degree in Engineering, Physics, Computer Science, Mathematics, or another relevant STEM discipline.
• 12+ years of relevant experience supporting complex national security space,…