Top Secret Sci Jobs

Senior BD leader sought to shape, capture, and grow complex battlespace awareness and imaging programs across U.S. Services and DoD organizations.

Serve as a Senior Help Desk Specialist delivering advanced, mission-critical IT support across classified and unclassified environments to maintain secure and reliable operations.

Senior Academic Instructor/SME needed to deliver and sustain advanced AOC/AFFOR command-and-control instruction and courseware for the 705th Training Squadron at Hurlburt Field.

Work as an MBSE engineer at an employee-owned defense-focused firm to transition missile performance models into a cloud-native Digital Engineering pipeline using SysML and related tools.

Experienced MBSE engineer needed to develop and maintain system models for air-delivered nuclear weapon systems in support of acquisition and sustainment activities at KBR.

Senior Help Desk Specialist needed to deliver advanced support for classified and unclassified systems in a mission-driven, remote US role requiring an active DoD Top Secret/SCI clearance.

Lead the design and implementation of automated RF test systems for Anduril’s Electromagnetic Warfare products, integrating state-of-the-art RF equipment and production test infrastructure.

Work at the intersection of autonomy, AI, and defense systems as a Software Engineer contributing high-performance algorithms and full-stack solutions for mission-critical deployments.

ORAU seeks an entry-level Security Assistant to support the FBI in Huntsville by executing clearance processing, database checks, security assessments, and administrative functions to maintain compliance with federal security standards.

Peraton seeks an experienced VDI Data Center Engineer to design and optimize secure, high-availability datacenter and hybrid-cloud infrastructure supporting classified DoD IT systems.

Peraton seeks a Cyber Software Engineer in Herndon to build and secure containerized, mission-focused software using Agile DevSecOps practices and modern tooling.

Senior-level avionics engineers are needed to troubleshoot, maintain, and support MQ-4C Triton payloads and communications systems at a Jacksonville Main Operating Base, requiring an active Top Secret clearance and strong field-service experience.

Northrop Grumman is hiring a Program Manager 2 with an active Top Secret clearance to lead cost, schedule, technical performance, and subcontractor integration for tactical space programs in Dulles, VA.

Northrop Grumman seeks a Program Manager (Level 1) with an active Top Secret clearance to drive cost, schedule and technical performance for high-value tactical space programs.

Experienced UI/UX Developer needed to craft accessible, responsive interfaces and front-end implementations for AnaVation's mission-focused products while working in a hybrid, cleared environment.

CGS is hiring a Legal Clerical Worker with a Top Secret/TS-SCI clearance to manage case tracking, document processing, and administrative support for FBI legal workflows.

Agile Defense is hiring a Rapid Response Team Lead to manage DISA J6 ETM 2.0 rapid-response operations at the Pentagon, driving project delivery, budget oversight, and team leadership under an active Top Secret SCI clearance.

Lead and embed with the 11th Airborne Division in Anchorage to drive Onebrief adoption, manage senior stakeholder relationships, and deliver technical and operational support to ensure sustained renewals and expansion.

Lead strategic capture and business development for Capella’s Mission Solutions to secure satellite mission and data-as-a-service programs across the U.S. DoD and Intelligence Community.

Onebrief is hiring an Operations Manager with multi-star headquarters planning expertise and an active Top Secret/SCI-eligible clearance to be physically based at Schofield Barracks and accelerate Onebrief usage across the 25th Infantry Division.

Lead customer engagement and operational adoption for Onebrief at the 4th Infantry Division, driving near-total product usage, renewals, and product feedback across multi-star headquarters.

Lead development of mission-critical embedded firmware for Kapta Space's spaceborne electronically-steered radar, owning design, testing, optimization, and cross-disciplinary integration.

Serve as the on-site Operations Manager for I MEF, combining deep multi-star operational planning experience and technical savvy to drive adoption, retention, and product improvements for Onebrief at San Diego headquarters.

Experienced software/hardware engineer needed to develop high-performance detection and countermeasure tools for the Bureau of Diplomatic Security, working closely with technicians and field users on RF and related threats.

Lead and oversee Service Desk operations for DoD OIG, delivering desktop and application support across NIPRNet, SIPRNet and JWICS while maintaining security and operational excellence.

Peraton seeks a senior SharePoint Engineer to lead customization, migration, and enterprise administration of SharePoint environments supporting high‑security missions.

Parsons seeks an experienced Senior Communications Systems Engineer to design and deliver mission-focused tactical networking and communications systems for DOD and IC programs.

Provide secure, high-quality legal clerical and case-tracking support for CGS’s government legal team, performing document processing, LAWS/Courtlink searches, and administrative duties under a Top Secret/TS-SCI clearance.

Experienced systems administrators with DoD Top Secret/SCI clearance are needed to support deployed systems, perform sustainment travel to foreign partners, and provide Tier 2 operational support for mission systems.

Senior Cyber Defense Analyst to perform advanced SIEM-based detection, incident response, and mentoring for Cybervance's on-site Washington, D.C. team, requiring an active Top-Secret/SCI clearance.

Scientific Research Corporation is hiring a Cyber Security Analyst III to design, implement, and maintain DoD-compliant cybersecurity controls and lead vulnerability and authorization efforts in support of mission-critical systems.

Lead architecture and integration of ground control segments for critical Space Force programs, applying deep systems engineering and information assurance expertise at KBR.

Link Solutions is hiring a Senior CSfC Specialist to operate and maintain DoD PKI and CSfC infrastructures in support of the USMC PKI program at Quantico, requiring TS/SCI and strong CA/HSM experience.

Experienced Electromagnetic Warfare Soldier needed to develop and deliver Army training packages and curriculum remotely for MAXISIQ supporting TRADOC and Army Futures Command.

Experienced Cloud Engineer needed to design, implement, and automate cloud-based data solutions for a DIA mission program, working on AI/ML enablement and enterprise data pipelines.

Experienced Database Analyst/Programmer needed to design and manage secure, enterprise-level databases supporting a new Case Management System for US Army law enforcement stakeholders.

Peraton is hiring a Strategic Technical Campaign Lead to architect and operationalize enterprise autonomous cyber capabilities that advance national security missions.

Lead COMSEC operations for Anduril's Intelligence Systems in Santa Ana, managing classified key material, secure equipment, policies, and program-level COMSEC accountability.

Experienced defense-industry leader needed to serve as Operations Manager for TSC’s DSS Division, owning P&L, program execution, and strategic growth for a major business unit.

Serve as Palantir's Facility Security Officer, overseeing personnel and physical security compliance and clearance pipelines to enable critical DoD operations.

KBR seeks a Systems Administrator with active Top Secret/SCI clearance to manage, secure, and automate cloud-based information systems supporting AFRL in Colorado Springs.

Support mission-critical submarine logistics at General Dynamics Electric Boat by coordinating ILS activities, tracking deliverables, and improving maintenance and supply processes.

AnaVation is hiring a Senior Software Developer to lead Agile development efforts, deliver secure, high-quality software solutions, and support advanced mobile reverse-engineering and systems work in a hybrid role based in Lorton, VA.

Lead the product strategy and delivery for Hypergiant's DoD command-and-control solutions, requiring active Top Secret/SCI clearance and deep operational experience with DoD killchains and C2 systems.

Serve as an Administrative Services Specialist supporting OUSD(P) operations in the National Capital Region, managing correspondence, security access, travel, and executive administrative processes.

Peraton is hiring an experienced Sr. Account Manager to lead strategic SaaS sales across government and enterprise markets, driving pipeline, negotiating deals, and serving as a trusted advisor to customers.

TekSynap is hiring an Information Systems Security Officer to manage RMF compliance, ATO activities, and cybersecurity operations for DTRA mission enclaves at Fort Belvoir.

Experienced systems administrator with a current Top Secret/SCI clearance needed to implement, maintain, and train users on GCCS-J systems while supporting CONUS and OCONUS customers.

Experienced Data Scientist needed to design and deploy scalable machine learning and data solutions that support counterterrorism investigations at locations in Huntsville, AL or Washington, DC.

AnaVation is hiring a Senior Project Manager to lead and deliver complex government technical programs from a hybrid position supporting a government customer in Lorton, VA.