> Markdown version of [/jobs/ext/4637601-software-systems-engineer-senior-staff-level-5](https://www.wearedevelopers.com/jobs/ext/4637601-software-systems-engineer-senior-staff-level-5). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Systems Engineer Senior Staff (Level 5) - **Company:** Lockheed Martin - **Location:** Littleton, CO, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Agile Methodology, Artificial Intelligence, Algorithm Design, Amazon S3, Systems Engineering, Code Review, SAP (Applications), Software Engineering, Software Systems, System-level Testing - **Published:** November 8, 2026 - **Apply:** https://www.juju.com/job/28_25303_cccc213d2b6ccd3a20977e1363d89037 ## About the Role * Significant software and systems engineering experience in at least one of the following domains: + Flight-software (FSW) development + Guidance, Navigation & Control (GNC) or Sensor processing algorithm design & implementation + High-fidelity 6DOF modelling & simulation + Terran Orbital Architecture * Knowledge or experience participating with software qualification campaigns (including unit, integration, and system-level testing) * Prior technical team leadership experience * Current Top Secret clearance, thus US Citizenship is required, * Demonstrated ability to drive functional integration across multidisciplinary teams * Experience with Agile development * Experience with real-time embedded systems * Experience overseeing the full Verification & Validation lifecycle from concept through certification * Prior responsibility for cost, schedule, and technical authority (e.g. CAM or IPT lead) * Prior SAP access * History of customer-facing technical roles * Proficient in AI prompting as it applies to this position and practice ## Description * Integration & Release Leadership - Define and enforce an integration plan that ensures each increment is "release-ready" (ready for integration, test, and deployment) across the S3 domain. Drive alignment of FSW, GNC, and M&S deliverables within each sprint and ISP cycle * Technical Architecture & Road-Mapping - Develop and maintain the technical architecture and capability roadmap for S3, aligning mission-level requirements with the software, algorithm, and simulation capabilities * FSW, GNC & M&S Expertise - Provide hands-on guidance on flight-software development, guidance-navigation-control algorithm implementation, and high-fidelity modelling-and-simulation. Review code, simulation models, and verification plans to ensure technical integrity as needed * End-to-End Verification & Validation (V&V) - Drive the teams from design through V&V lifecycle for software and simulation artifacts, coordinating unit, integration, and system-level testing. Ensure each release meets defined performance, capabilities, and reliability criteria before ISP completion * Technical Trade Studies & Risk Mitigation - Prioritize and conduct trades and feasibility studies for new capabilities, assess schedule/technical risk, and propose mitigation strategies that preserve functional delivery cadence across all teams * Cross-Discipline Communication - Serve as the primary technical liaison among software, algorithm, simulation, and mission-performance teams; translate technical constraints and dependencies into actionable ISP goals with the teams * Customer & Stakeholder Interface - Present technical status, trade results, and release plans to internal and external customers, tailoring communication for both high-level program forums and detailed technical reviews Leadership & Business Interaction * Act as Integrated Product Team (IPT) technical lead, focusing on technical deliverables * Participate in contract execution, proposal support, and new-business shaping where technical insight is required.