> Markdown version of [/jobs/ext/1477945-systems-integrator-senior-ts-sci-with-polygraph-required](https://www.wearedevelopers.com/jobs/ext/1477945-systems-integrator-senior-ts-sci-with-polygraph-required). 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). --- # Systems Integrator (Senior) - TS/SCI with Polygraph Required - **Company:** Catalyst - **Location:** Vienna, VA, United States - **Experience:** Expert - **Salary:** $150,000.0 - $190,000.0 - **Contract:** Permanent contract - **Skills:** Service-Oriented Architecture, Software Requirements Analysis, Systems Integration, Enterprise Integration - **Published:** July 29, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=64051b499bc1edba ## About the Role US Citizenships and TS/SCI with Polygraph (no exceptions), * Bachelor's degree and 7-11 years of relevant systems integration experience (Master's degree and 5-9 years also acceptable); additional relevant experience may be considered in lieu of a degree, * Demonstrated experience leading systems integration efforts for large, complex system-of-systems or service-oriented architecture environments across cloud, on-premise, or hybrid infrastructures * Experience evaluating and integrating COTS/GOTS products and tools * Experience performing horizontal integration planning and interfacing with other functional areas to ensure coordinated technical delivery * Experience managing contract personnel and ensuring high-quality, on-time completion of deliverables in compliance with the statement of work * Demonstrated experience translating customer and system requirements into integration approaches and technical design * Strong critical thinking, technical writing, and oral communication skills, including the ability to present technical solutions to customers * Senior positions review and guide the work of Junior and Mid-Level integrators ## Description Senior Systems Integrators lead the planning, implementation, and delivery of integration solutions for large, complex system-of-systems environments in support of the customer's requirements. Senior Systems Integrators perform horizontal integration planning across functional areas, ensure technical solutions and schedules are implemented in a timely manner, and manage the quality and completeness of contract deliverables. Senior Systems Integrators are expected to evaluate COTS/GOTS products and integration approaches, resolve moderately complex to complex technical integration issues, and serve as a point of contact for integration efforts spanning multiple teams and stakeholders. ## Related Videos - [Enterprise Integration Is Dead! Long Live AI-Driven Integration with Apache Camel](https://www.wearedevelopers.com/videos/1606-enterprise-integration-is-dead-long-live-ai-driven-integration-with-apache-camel) - [Why make use of an integration platform in today's software developments and infrastructure?](https://www.wearedevelopers.com/videos/758-why-make-use-of-an-integration-platform-in-today-s-software-developments-and-infrastructure) - [AI Agents & Agentic AI](https://www.wearedevelopers.com/videos/2017-ai-agents-agentic-ai) - [Enterprise Python: Software That Lives Long And Prosper](https://www.wearedevelopers.com/videos/946-enterprise-python-software-that-lives-long-and-prosper) - [From APIs to MCP: Enterprise Governance, Registry, and Controls](https://www.wearedevelopers.com/videos/100336-from-apis-to-mcp-enterprise-governance-registry-and-controls) - [Physical AI: The Era of Intelligent Machines](https://www.wearedevelopers.com/videos/100141-physical-ai-the-era-of-intelligent-machines) ## Related Articles - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)