Top Senior Systems Engineer Jobs in Denver & Boulder, CO

Supports mission-level integration and testing for space and defense systems, including test planning, procedures, reports, ICDs, requirements traceability, simulators, network interfaces, ground systems, launch rehearsals, and post-launch updates. Collaborates across integrated product teams to verify compatibility, configure systems, resolve anomalies, and support mission operations. The role is fully onsite and requires an active Top Secret/SCI clearance.

Develop and govern Cameo-based SysML models for space and missile defense systems. Lead requirements traceability, architecture, interfaces, verification and validation modeling, model integration, and digital thread development. Support systems engineering processes, DoD compliance, Agile model delivery, classified programs, subcontractor evaluation, customer engagements, and proposal activities. Integrate MBSE models with PLM and enterprise data systems while mentoring teams and driving MBSE adoption.

Provides senior systems engineering, integration, interoperability, sustainment, testing, troubleshooting, and technical advisory support for MILSATCOM and Protected MILSATCOM capabilities. Analyzes architectures, cryptographic systems, interfaces, data flows, and proposed modifications; develops technical documentation and test assets; supports site surveys, operational evaluations, and field maintenance at CONUS and OCONUS locations. Collaborates with government, military, allied, and technical stakeholders to resolve complex issues and improve operational readiness.

Develop and verify Guidance, Navigation, and Control subsystem requirements for lunar spacecraft. Perform analyses, trade studies, simulations, hardware-in-the-loop testing, and verification planning. Manage technical budgets and performance metrics, define subsystem interfaces, and coordinate with vehicle systems, propulsion, structures, and dynamics teams. Support schedule, resource, cost, and risk updates while guiding complex technical work and contributing to safe human spaceflight.

Design, build, and maintain core gameplay systems, frameworks, Unreal Engine plugins, and multiplayer networking systems. Own technical architecture, performance, scalability, debugging, and technical debt reduction. Partner with designers and programmers, mentor engineers, lead code reviews and design discussions, document systems, and support sprint planning for an Unreal Engine game project.

Designs, implements, secures, and supports enterprise IT systems across a multi-site manufacturing environment. Owns Tier 3 incident resolution, hybrid and multi-cloud infrastructure, identity, endpoints, servers, networking, virtualization, and enterprise migrations. Leads modernization initiatives, supports regulated government cloud environments, develops automation and documentation, and mentors IT teams. The role requires strong expertise in Azure, AWS, Microsoft 365, Active Directory, Windows environments, hybrid architectures, and security-focused infrastructure operations.

Leads systems engineering for Blue Origin’s Sunrise orbital data center constellation. Owns digital twin development, MBSE modeling, requirements and interface management, system-level trade studies, verification and validation strategy, integration, and lifecycle execution. Drives innovative engineering processes, rapid iteration, and cross-functional alignment while mentoring engineers and transitioning teams toward model-based practices.

Leads systems engineering activities across spacecraft missions, segments, elements, and subsystems. Develops, allocates, traces, verifies, and manages requirements throughout the program lifecycle using MBSE and requirements database tools. Supports architecture and interface development, gate reviews, integration and test coordination, risk management, customer presentations, and multidisciplinary team leadership. Mentors engineers and maintains requirements and verification artifacts for complex, high-reliability aerospace and defense systems.

Provides systems engineering leadership for complex spacecraft and mission systems. Develops, allocates, traces, verifies, and manages requirements across mission segments, elements, and subsystems throughout the program lifecycle. Uses MBSE for architecture and interface traceability, supports technical reviews and integration and test activities, coordinates risk management, presents to customers and leadership, and mentors systems engineers.

Lead satellite systems engineering and operations for 10 on-orbit WGS satellites. Advise customers on satellite and ground command operations, manage technical changes, test software and databases, maintain procedures, run simulations, analyze satellite performance data, resolve anomalies, improve processes, develop engineering tools, and mentor engineers. The role requires occasional compensated on-call support and collaboration with military customers.

Lead cybersecurity engineering and software development for HPE Block Storage products. Responsibilities include designing security architecture, implementing cybersecurity features, supporting certification and compliance activities, evaluating security technologies, remediating vulnerabilities, influencing security standards, and mentoring engineers. The role requires expertise in cybersecurity engineering, software development, compliance frameworks, scalable security solutions, and technical leadership.

Own supplier performance for liquid propulsion systems, driving improvements in quality, cost, delivery, and capacity. Lead supplier development, audits, onboarding, corrective actions, non-conformance management, and supplier quality metrics. Provide technical support at supplier sites, review manufacturing processes, support DFM and NPI, and ensure compliance with aerospace quality standards including AS9102 and AS9100. Partner with engineering, manufacturing, procurement, and vendors to reduce risk and improve hardware reliability and manufacturability.

Own supplier performance for solid rocket motor components, improving quality, cost, delivery, and capacity. Lead supplier development, audits, root-cause investigations, corrective actions, nonconformance management, DFM reviews, and supplier NPI. Partner with engineering, manufacturing, procurement, and vendors to ensure manufacturability, reliability, compliance, and production readiness. Provide onsite supplier support and analyze quality and delivery metrics to reduce supply-chain risk. The role requires aerospace-quality expertise, GD&T, AS9102 FAI knowledge, and travel up to 50%.

Supports Space Force ground-based radar sustainment and modernization. Converts requirements into integrated hardware and software solutions through functional analysis, trade studies, requirements allocation, and interface definition. Leads Agile or DevSecOps teams while managing risk, cost, schedules, testing, configuration, and data management. Designs and deploys capabilities using DoD lifecycle processes for operational radar sites. The role requires systems engineering expertise, classified-system testing experience, and an active Secret clearance.

Provides Oracle-based digital finance and systems integration consulting for clients. Responsibilities include analyzing financial processes, designing and implementing business application solutions, integrating enterprise platforms, supporting NetSuite adoption, managing projects and budgets, applying agile methodologies, documenting deliverables, and maintaining stakeholder relationships. The role also provides client training, technical support, and optimization advice across financial planning, reporting, and operations.

Provides systems engineering leadership for spacecraft and mission programs, managing requirements development, allocation, traceability, verification, validation, and change management across the program lifecycle. Uses MBSE and requirements database tools, supports major design reviews and integration activities, coordinates multidisciplinary teams, manages risks and opportunities, presents to customers and leadership, and mentors other systems engineers. The role is performed onsite five days per week and may involve laboratory, production, cleanroom, or outdoor environments.

Lead and support systems engineering activities across spacecraft missions, segments, elements, and subsystems. Develop, allocate, trace, verify, and manage requirements throughout the program lifecycle using MBSE and requirements database tools. Coordinate verification with integration and test teams, support technical gate reviews and risk processes, interface with customers and engineering leadership, present technical information, and mentor systems engineers. The role is on-site five days weekly and requires eligibility and willingness to obtain and maintain applicable Top Secret/SCI access.

Lead definition of RF system requirements and architecture, interface with RF/antenna/transceiver and signal processing teams, perform modeling and analysis (MATLAB, Systems Toolkit, GRASP), produce MBSE-guided designs, mentor staff, and provide technical recommendations to program and executive leadership.

Lead systems engineering across the product lifecycle: derive, decompose, allocate, trace, and manage requirements; develop system architecture and concepts of operation; oversee integration, verification, and V&V; track technical performance and risks; produce milestone artifacts and lead cross-functional teams while mentoring engineers and improving processes.

Leads electrical systems integration for spacecraft programs, including architecture, harnessing, power, RF and data interfaces, EICD management, electrical analysis, testing, verification, and nonconformance resolution. Coordinates with customers, suppliers, and engineering teams while supporting manufacturing, ground testing, and flight operations. Requires extensive systems engineering experience, spacecraft knowledge, and an active Secret clearance.

Lead end-to-end LLM inference performance across serving systems, models, GPU hardware, and workloads. Define rigorous benchmarks, diagnose bottlenecks from scheduling through kernels and interconnects, optimize single- and multi-node deployments, and deliver production-ready runtimes and configurations. Collaborate with product and infrastructure teams, evaluate inference technologies, and implement runtime fixes. The role requires strong Python engineering, production experience with serving engines such as vLLM or SGLang, GPU profiling, and knowledge of modern inference optimization techniques.

Lead software systems integration for satellite flight systems, ensuring flight software works with avionics, payloads, ground equipment, and spacecraft-ground interfaces. Manage FlatSat and hardware-in-the-loop testing, interface validation, software builds, mission simulations, fault-management validation, test planning, and defect closure. Advise program leadership on software architecture and system risks while supporting verification campaigns, integration, manufacturing, and flight operations.

Maintains AWS infrastructure supporting PLM applications for DoD customers. Responsibilities include cloud architecture, Ansible automation, database administration, application installation and patching, security updates, performance tuning, testing, troubleshooting, documentation, and infrastructure scaling. Requires AWS and Security+ certifications, enterprise cloud experience, Linux and Windows administration, database expertise, an active or obtainable U.S. national security clearance, and potential travel to customer sites.

Senior Systems Engineer supporting DoD satellite communications ground and system-of-systems programs. The role owns complex technical problem spaces, integrates work across engineering teams, develops requirements and architectures, coordinates integration and verification, manages technical risks and dependencies, supports testing and technical baselines, and contributes to engineering processes and reviews. The engineer also mentors peers, facilitates technical working groups, and communicates recommendations to program and customer stakeholders.

Owns end-to-end electrical systems and electrical power system engineering for TeraWave spacecraft, including requirements, architecture, interfaces, power budgets, verification, testing, risk management, and technical closure. Partners across spacecraft bus, payload, propulsion, software, mission operations, and specialty engineering teams to support reliable LEO and MEO satellite production and operations.