--- title: Senior Software Engineer TS/SCI W CI Poly description: Modern Government Solutions is hiring for the Senior Software Engineer TS/SCI W CI Poly role in Herndon, VA. See the full description and apply. type: job url: https://www.foundrole.com/jobs/senior-software-engineer-ts-sci-w-ci-poly-at-modern-government-solutions-01a15637-81d5-7b61-a44d-f54d7cd3da3d date: 2026-11-15T17:42:40Z og_description: Join Modern Government Solutions as Senior Software Engineer TS/SCI W CI Poly in Herndon, VA. Pays $150K–$180K per year. og_image: https://www.foundrole.com/og/s59z1b.png breadcrumbs: - label: Home url: https://www.foundrole.com/ - label: Search url: https://www.foundrole.com/jobs --- | | | |---|---| | **Company** | Modern Government Solutions | | **Location** | Herndon, VA | | **Salary** | $150K/yr - $180K/yr | | **Type** | Full Time | | **Posted** | Oct 19, 2026 | | **History** | First seen 61 days ago (2026-09-15), reposted 2 times | ## Is this job real? **Ghost job check:** A- · Low risk. Probably a real opening. ## Visa sponsorship - **H-1B:** No H-1B sponsorship on record for Modern Government Solutions. - **E-Verify:** No E-Verify enrollment on record for Modern Government Solutions. ## Pay for similar jobs Most similar jobs pay $130,000 – $185,000 a year (median $158,000). ## Description **TITLE:** Sr. Software Engineer **LOCATION:** Herndon, VA **CLEARANCE REQUIRED:** Active TS/SCI with CI Polygraph **EMPLOYMENT TYPE:** Full-Time, Onsite **POSITION SUMMARY** Modern Government Solutions (MGS) is seeking a Sr. Software Engineer to design, develop, and integrate software solutions within secure on-premises and cloud-based environments in support of national intelligence missions. In this role, you will apply your expertise in C/C++ and Python development to build and integrate mission-critical capabilities across the NRO domain. **REQUIRED SKILLS AND QUALIFICATIONS** - **Must possess an active Department of Defense (DoD) TS/SCI security clearance with CI Polygraph.** - Bachelor's degree in Computer Science, Software Engineering, or a related STEM field, or equivalent relevant experience in lieu of. - 8+ years of experience in software development and integration using C/C++ and Python. - Experience developing and integrating software in both on-premises and AWS C2E environments. - This position requires regular onsite attendance at our Herndon, VA facility. No remote work is available. **PREFERRED SKILLS AND QUALIFICATIONS** - Master's degree in Computer Science, Software Engineering, or a related STEM field. - NRO domain experience. **Applicants selected will be United States citizens and may be subject to a government security investigation for access to classified information.** **ABOUT US** At MGS, we believe a people-first culture corresponds to organizational success through a commitment to excellence, integrity, inclusion, and an attitude that welcomes challenges meets demands, sustains growth, and drives innovation. We provide expert mission-first technical and programmatic services and solutions for the US intelligence community, the US Department of Defense, and other governmental agencies. We create people-first organizational cultures where employees feel needed in the system, not a system that needs employees. We provide you with long-term career opportunities centrally focused on our core value system: inclusion, integrity, and a commitment to excellence. *MGS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status, and will not be discriminated against on the basis of disability.* ## Skills - Security Clearance - Amazon Web Services - Python - Software Development - CI/CD - On-Premises Infrastructure - C++ - Remote Work - Polygraphy - Computer Science - Top Secret-Sensitive Compartmented Information (Ts/sci Clearance) ## Related - [Technology & Software jobs](https://www.foundrole.com/careers/technology-and-software?utm_source=ai_markdown)- [Software Development jobs](https://www.foundrole.com/careers/technology-and-software/software-development?utm_source=ai_markdown)- [Software Developer / Engineer jobs](https://www.foundrole.com/careers/technology-and-software/software-development/software-developer-engineer?utm_source=ai_markdown)- [JavaScript Developer / Engineer jobs](https://www.foundrole.com/careers/technology-and-software/software-development/software-developer-engineer/javascript-developer-engineer?utm_source=ai_markdown)- [Browse all companies](https://www.foundrole.com/companies?utm_source=ai_markdown) ## Explore this job market - [Virginia](https://www.foundrole.com/locations/us/virginia?utm_source=ai_markdown) — 99733 jobs - [Defense and Space](https://www.foundrole.com/sectors/aerospace-and-defense/defense-and-space?utm_source=ai_markdown) — 61184 jobs - [Herndon, VA](https://www.foundrole.com/locations/us/virginia/herndon?utm_source=ai_markdown) — 2483 jobs ## Related pages - [Virginia](https://www.foundrole.com/locations/us/virginia?utm_source=ai_markdown) — 99733 jobs - [Defense and Space](https://www.foundrole.com/sectors/aerospace-and-defense/defense-and-space?utm_source=ai_markdown) — 61184 jobs - [Herndon, VA](https://www.foundrole.com/locations/us/virginia/herndon?utm_source=ai_markdown) — 2483 jobs ## Browse - [Companies](https://www.foundrole.com/companies?utm_source=ai_markdown) - [Jobs by country](https://www.foundrole.com/locations?utm_source=ai_markdown) - [Jobs in the United States by state and city](https://www.foundrole.com/locations/us?utm_source=ai_markdown) - [H1B sponsors by location](https://www.foundrole.com/h1b-sponsors?utm_source=ai_markdown) - [H1B salaries](https://www.foundrole.com/h1b-salaries?utm_source=ai_markdown) - [Sectors and industries](https://www.foundrole.com/sectors?utm_source=ai_markdown) - [Jobs by career field](https://www.foundrole.com/careers?utm_source=ai_markdown) - [Latest jobs](https://www.foundrole.com/jobs/latest?utm_source=ai_markdown)