> Markdown version of [/jobs/ext/3363715-senior-evolved-strategic-systems-ess-ground-systems-integration-specialist](https://www.wearedevelopers.com/jobs/ext/3363715-senior-evolved-strategic-systems-ess-ground-systems-integration-specialist). 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). --- # Senior Evolved Strategic Systems (ESS) Ground Systems Integration Specialist - **Company:** Modern Technology Solutions, Inc. - **Location:** El Segundo, CA, United States - **Experience:** Expert - **Salary:** $136,000.0 - $169,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Word, Microsoft Excel, Agile Methodology, Systems Engineering, Confluence, JIRA, Collaborative Software, Key Management, Microsoft Office, Microsoft PowerPoint, Systems Integration, Digital Twin, Information Technology - **Published:** September 2, 2026 - **Apply:** https://jobs.localjobnetwork.com/apply/add/87835710/1 ## About the Role * Active Secret clearance required with the ability to obtain a Top Secret clearance * Bachelor's degree * 15+ years demonstrated experience in Systems Engineering * Experience with MILSATCOM, such as AEHF, PTS, EPS, WGS, and FAB-T terminal programs * Experience working with military and DoD civilians * Experience with ground and airborne systems, such as terminals and networks * Strong interpersonal skills, communication (oral and written), and presentation skills * Proficient in Microsoft Office products (Word, Excel, Powerpoint) * Due to security requirements, work is required to be on-site in a secure facility Desired Skills and Experience: * TS/SCI (or eligible) clearance * BS degree in technical field, such as engineering, mathematics, physics, or computer science * MS degree in technical field (such as engineering, mathematics, physics, or computer science) or Space Systems * Experience with mission planning, COMSEC/TRANSEC, or key management * Demonstrated strong Systems Engineering and Technical Leadership experience * Knowledge and experience in Agile Development and collaboration tools (Jira/Confluence) ## Description Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Evolved Strategic Systems (ESS) Ground Systems Integration Specialist to join our team in El Segundo, CA. Due to security requirements, work is required to be on-site in a secure facility. The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge SE&I for the Space Force's Space System Command. We support the Space Force's acquisition of state-of-the-art MILSATCOM systems, providing secure global, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems., * Develop and implement integration strategies and processes to successfully integrate satellite communication systems, segments (Ground, Space, Crypto, Terminals), subsystems, elements, and components; manage the technical baselines among different stakeholders * Perform analysis of the systems requirements that define the technical baseline and verification of the technical baseline * Apply Digital Engineering methods and modeling strategies (i.e. Digital twins) to support integration and test activities * Work with Government and contractor personnel to close gaps of customer requirements among the programs; support major requirements reviews, design reviews, and other associated meetings * Lead and support Government/Contractor Working Group meetings-by developing briefings, leading discussion, and writing minutes-to address/resolve risks, issues, and action items * Review proposed changes to the technical baseline for impacts to enterprise capabilities and to cross-stakeholder integration concerns * Define and deliver alternative of solutions to address different integration challenges; manage schedule impact and overall delivery of products * Facilitate review of program documents by providing comments, compiling other reviewer comments, and working with contractor to adjudicate the comments. * Serve as a subject matter expert to assess technical issues and to prepare briefings to U.S. Space Force program office personnel and other stakeholders; provide courses of actions to support Government decisions * Support management of risks, issues, interdependencies, identifying schedule disconnects and conflicts, developing action plans for resolution, and assisting the Government in executing selected solutions ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [AI in Regulated Industry - Validating AI-Enabled Products with PLM and Digital Twins](https://www.wearedevelopers.com/videos/2065-ai-in-regulated-industry-validating-ai-enabled-products-with-plm-and-digital-twins) - [42 x 2 Canvases Later: Two Years, Two Minds, Many Lessons](https://www.wearedevelopers.com/videos/1458-42-x-2-canvases-later-two-years-two-minds-many-lessons) - [GitOps for the people](https://www.wearedevelopers.com/videos/461-gitops-for-the-people) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [A Founder's Journey : From Startup Chaos to Purposeful Growth](https://www.wearedevelopers.com/videos/1926-a-founder-s-journey-from-startup-chaos-to-purposeful-growth) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Quick guide: How to write a Software Developer CV](https://www.wearedevelopers.com/magazine/37-quick-guide-how-to-write-a-software-developer-cv) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering)