Top Secret/sci Jobs

Anduril is hiring a Senior Software Engineer to develop high-performance algorithms and software (C/C++, Python, Matlab) for AI-driven, mission-critical defense systems.

Senior Systems Engineer needed to architect, operate, and secure complex IT infrastructure for a mission-critical, classified program in the National Capital Region.

Parsons is hiring a seasoned Data Engineer to build and maintain robust data pipelines and search/analytics solutions across cloud-native and constrained edge environments for mission-critical federal systems.

Contribute to location-aware visualization software at Esri, developing front-end applications and integrations that support Defense and Intel customers.

Mission Driven

Social Impact Driven

Passion for Exploration

Reward & Recognition

Senior Windows Systems Engineer role supporting enterprise and sensitive environments at SpaceX, requiring deep Microsoft expertise and an active Top Secret/TS-SCI clearance with polygraph.

Northrop Grumman Space Sector seeks a Top Secret-cleared Software Engineer (Level 3 or 4) in Aurora, CO to design, develop, and sustain Java microservices and secure applications in a classified environment.

Experienced data center engineer with active TS/SCI + CI Poly to lead on-site, Dell-focused infrastructure operations and day-to-day data center activities for PGTEK.

Lead LAN/WAN Engineer needed to architect, operate, and mentor teams on complex enterprise and mission networks with deep expertise in BGP, OSPF, tunneling, spine-leaf architecture, and multi-vendor environments.

Reinventing Geospatial (RGi) is hiring a cleared Technical Training & Publications Specialist to produce video-based instructional content and technical publications in support of GEOINT and defense programs.

Lead software and data engineering efforts for DoD programs, delivering scalable analytics, classification-compliant systems, and program-level technical leadership at the Pentagon.

Platinum Technologies seeks a Senior Data Security Engineer to architect and enforce advanced DRM, key management, and ABAC-driven policies across SIPR/Top-Secret (Kiteworks) and NIPR (Microsoft Purview) environments.

Help build secure, high-impact front-end web applications for space-focused, mission-critical systems at a small, design-driven company in Herndon, VA (requires Active Top Secret/SCI eligibility).

Esri is hiring a Technical Consultant (ArcGIS) in Redlands to design and implement enterprise GIS solutions and advise Defense and Intel customers on location-intelligence strategies.

Esri is seeking an experienced Enterprise Data Engineer to design, implement, and secure scalable geospatial database solutions for mission-critical Defense and Intelligence workflows.

Esri is hiring a Technical Consultant — Enterprise Data Engineer in Redlands, CA to architect, implement, and optimize enterprise geospatial database solutions for mission-critical Defense and Intel applications.

Experienced Database Engineer needed to architect, tune, and secure enterprise databases for mission-critical and geospatial systems at Trinity Global Consulting.

Lead and scale Haskell-focused embedded software engineering for Anduril's Electromagnetic Warfare team, shaping system architecture and building high-assurance FP teams for mission-critical products.

Trinity Global Consulting is hiring a Front End Developer with TS/SCI eligibility to develop performant, secure web applications using TypeScript and modern front-end frameworks.

Anduril is hiring an experienced SDET in Reston to own test strategies and execute testing for complex full-stack and embedded intelligence systems.

An entry-level software engineer role at Captivation Software working on Java, Portable MapReduce, Python-based analytic development in support of classified government missions.

Esri is hiring a seasoned System Engineer to implement, optimize, and support enterprise ArcGIS deployments for defense and intelligence customers in Vienna, VA.

Northstrat is hiring an Operations Systems Engineer to maintain, secure, and monitor GVS systems while working with customers and cross-functional teams at the Herndon DEP II facility.

Senior Front End Developer needed in Centennial, CO to design and implement secure, modern web UIs for mission‑critical space applications; active Top Secret Clearance with SCI eligibility required.

Lead the tradespace analysis and program execution for next-generation autonomous aircraft at Shield AI, translating customer use cases into measurable performance, cost, and schedule outcomes.

Senior front-end developer needed to design and implement secure, accessible, and data-driven web UIs for mission-critical space and government applications (active DoD clearance required).

Captivation Software is hiring a senior Software Engineer to design, implement, and operate Linux-based, containerized applications using Python, Rust, NoSQL, Docker, and Kubernetes in support of national security missions.