33,539 top secret clearance jobs at 1,352 companies in United States

About the role

Modern Technology Solutions, Inc. (MTSI) is searching for a Systems Administrator – Journeyman to support United States Space Force (USSF) by developing software in support of Space Systems Command (SSC) Defensive Cyber Operations rapid agile development of defensive cyber solutions to protect, defend, and respond to both ground and space based cyber adversarial threats. A successful candidate should be a leader and…

Responsibilities

• maintaining networks
• managing systems
• resolving performance issues

Requirements

• ✓3+ years experience with Bachelor's, or 7+ with Associate's, or 15+ with high school; CCNA, Security+, CCDE, or DoD 8140 certification; Top Secret with SCI eligibility; knowledge of Windows, RHEL, Cisco, virtualization, LAN/WAN, COMSEC, RMF, Bash, Python.

Technical tools mentioned

• Microsoft Windows
• Microsoft Exchange Server
• RHEL
• CISCO
• Bash
• Python

About Modern Technology Solutions, Inc.

Engineering services and technology solutions for national security.

About the role

Modern Technology Solutions, Inc. (MTSI) is seeking a Modeling and Simulation (M&S) Engineer. You will support a small, highly empowered team at our Dayton, OH location where every team member is directly responsible for the success. You will utilize your M&S experience in systems, subsystem, and component models for aerospace applications. ROLE AND RESPONSIBILITIES* Your essential job functions will include…

Responsibilities

• developing simulation models
• integrating simulation architectures
• performing trade-space analysis

Requirements

• ✓3+ years modeling and simulation software development; MATLAB/Simulink; aerospace system modeling; U.S. citizenship; current Secret TS with SCI eligibility desired; B.S. in engineering or physics required.

Technical tools mentioned

• MATLAB
• Simulink
• C
• C++
• Python
• TMAP
• AFSIM
• ITASE
• NGTS
• JSE

About Modern Technology Solutions, Inc.

Engineering services and technology solutions for national security.

About the role

Modern Technology Solutions, Inc. (MTSI) is searching for a Senior Project Manager/Government Acquisitions Analyst to support United States Space Force (USSF) in developing and deploying defensive cyber capabilities in support of Space Systems Command (SSC) and Combat Forces Command (CFC). This role focuses on serving as the Senior Project Manager and Government Acquisitions Analyst, acting as the primary focal point…

Responsibilities

• leading coordination
• building advocacy
• navigating acquisitions

Requirements

• ✓10+ years space/cyber acquisitions with MA/MS or 18+ with BA/BS; deep knowledge of USSF/SSC acquisition processes; leadership experience; TS/SCI clearance; ability to travel less than 20%.

About Modern Technology Solutions, Inc.

Engineering services and technology solutions for national security.

About the role

At Fluor, we are proud to design and build projects and careers. We are committed to fostering a welcoming and collaborative work environment that encourages big-picture thinking, brings out the best in our employees, and helps us develop innovative solutions that contribute to building a better world together. If this sounds like a culture you would like to work in, you’re invited to apply for this role. Fluor is a…

Responsibilities

• directing operations
• managing integration
• chairing reviews

Requirements

• ✓Accredited 4-year degree and 8 years experience, or 12 years without degree; TS/SCI clearance; ability to communicate effectively; knowledge of applicable statutes; attention to detail.

About Fluor Corporation

Global engineering, procurement, construction, and maintenance services firm.

About the role

At Fluor, we are proud to design and build projects and careers. We are committed to fostering a welcoming and collaborative work environment that encourages big-picture thinking, brings out the best in our employees, and helps us develop innovative solutions that contribute to building a better world together. If this sounds like a culture you would like to work in, you’re invited to apply for this role. Fluor is a…

Responsibilities

• managing facilities operations
• overseeing maintenance
• resolving competing demands

Requirements

• ✓Accredited 4-year degree or equivalent with 12 years experience (or 16 years non-degreed); TS/SCI clearance; experience managing facilities operations in data center or mission-critical facility; DOE DCEP certification in all four tracks.

About Fluor Corporation

Global engineering, procurement, construction, and maintenance services firm.

About the role

At Fluor, we are proud to design and build projects and careers. We are committed to fostering a welcoming and collaborative work environment that encourages big-picture thinking, brings out the best in our employees, and helps us develop innovative solutions that contribute to building a better world together. If this sounds like a culture you would like to work in, you’re invited to apply for this role. Fluor is a…

Responsibilities

• managing contract performance
• directing PWS execution
• approving deliverables

Requirements

• ✓Accredited 4-year degree and 12 years work experience (or 16 years without degree); 5 years program/project management in mission-critical data center; TS/SCI clearance; U.S. work authorization.

About Fluor Corporation

Global engineering, procurement, construction, and maintenance services firm.

About the role

Job Description BAE Systems is looking for a motivated Guidance, Navigation, and Control (GN&C) Engineer to join the Force Development Evaluation (FDE) team for an exciting opportunity supporting the United States Air Force Intercontinental Ballistic Missile (ICBM) weapon system program. What is FDE? The FDE team supports Air Force Nuclear Weapons Center (AFNWC) and Air Force Global Strike Command (AFGSC) to…

Responsibilities

• implementing Kalman filters
• analyzing sensor data
• developing software tools

Requirements

• ✓Bachelor's in aerospace, mechanical, electrical, or software engineering, math, physics, or computer science; 7+ years GN&C or related experience; MATLAB proficiency; understanding of GN&C algorithms and coordinate frame transformations; technical writing and communication skills.

Technical tools mentioned

• MATLAB
• C++
• C
• Python
• Fortran
• Ada

About BAE Systems

Global defense, aerospace, and security technology company.

About the role

Job Description The Full Motion Video (FMV) Analyst positions at BAE Systems provide employees with hands-on FMV training for all intelligence disciplines, advanced skills certification, and rapid job promotion into instructor, subject matter expert, and management positions. Our team takes pride in supporting the critical missions that protect the nation, our freedom, and our families--the things that really matter.…

Responsibilities

• producing imagery products
• compiling intelligence materials
• exploiting FMV data

Requirements

• ✓3 years intelligence analysis experience or bachelor's degree in related field; formal intelligence school course; rotating shifts including nights, weekends, holidays; MS Office; typing 45 wpm; color discernment; FMV training; US citizenship; Top Secret/SCI clearance.

Technical tools mentioned

• Microsoft Office
• Microsoft Word
• Microsoft Excel
• PowerPoint

About BAE Systems

Global defense, aerospace, and security technology company.

About the role

Job Description BAE Systems is looking for a motivated Mechanical/Aerospace/Electrical/Software Engineer to join the Weapon System Assessment and Reference Models (WSARM) team for an exciting opportunity supporting the Minuteman III Intercontinental Ballistic Missile (ICBM) weapon system program. The successful candidate will be an integral part of a talented and highly-skilled team that supports Air Force Nuclear…

Responsibilities

• developing simulation tools
• performing analyses
• publishing reports

Requirements

• ✓Bachelor of Science in Engineering (ABET), Mathematics, Physics, Statistics, Computer Science, or Software; 12+ years related experience (8+ with Master's); in-depth analysis and software programming; 6-DOF tool development; C and C++; Gitlab; technical writing; structural/thermal/fluids/dynamics background.

Technical tools mentioned

• C
• C++
• Gitlab
• MATLAB
• Python
• Fortran
• Ada
• STK
• NASTRAN

About BAE Systems

Global defense, aerospace, and security technology company.

About the role

Responsibilities Ready to make an impact on a mission that matters? Join Arcfield and be part of a team delivering innovative engineering and technology solutions that help advance our nation's security. At Arcfield, you'll have the opportunity to tackle meaningful challenges alongside talented, driven professionals who bring diverse skills, perspectives, and expertise to the mission. We're looking for motivated,…

Responsibilities

• leveraging data sets
• developing methodologies
• collaborating with stakeholders

Requirements

• ✓TS/SCI clearance with polygraph; Bachelor's degree in computer science, information systems, engineering, business or related field; 8-10 years experience (BS), 6-8 (MS), 3-5 (PhD); experience with data analysis, software development, and data science tools.

Technical tools mentioned

• Java
• Linux
• Ruby
• Python
• .NET
• C#
• C++
• JSON
• XML
• XSLT
• JDBC
• SOAP

About Arcfield

Provider of mission-focused defense engineering and cybersecurity services.

About the role

Responsibilities The individual selected for this position will serve as a member of the Engineering Team within a Program Management Office (PMO) and will work with the PMO leadership, other offices, and the Sponsor’s mission partners to ensure goals and requirements are gathered, clearly articulated, documented, and tracked to closure. The individual will also be responsible for working with internal and external…

Responsibilities

• facilitating technical forums
• supporting network architecture
• modeling network architectures

Requirements

• ✓TS/SCI clearance with polygraph; Bachelor's degree or equivalent in computer science, information systems, engineering, business, or technical discipline; 10-12 years with BS, 8-10 with MS, 5-7 with PhD; experience with eBGP, OSPF, SD-WAN, and network engineering.

Technical tools mentioned

• eBGP
• OSPF
• SD-WAN
• RPL

About Arcfield

Provider of mission-focused defense engineering and cybersecurity services.

About the role

Responsibilities The individual selected for this position will serve as a member of the Engineering Team within a Program Management Office (PMO) and will work with the PMO leadership, other offices, and the Sponsor’s mission partners to ensure goals and requirements are gathered, clearly articulated, documented, and tracked to closure. The individual will also be responsible for working with internal and external…

Responsibilities

• facilitating engineering meetings
• supporting network architecture
• analyzing system requirements

Requirements

• ✓TS/SCI clearance with polygraph; Bachelor's degree in computer science, information systems, engineering, business, or technical discipline; 10-12 years with BS, 8-10 with MS, 5-7 with PhD; experience in systems engineering and network analysis.

Technical tools mentioned

• eBGP
• OSPF
• RPL
• SD-WAN

About Arcfield

Provider of mission-focused defense engineering and cybersecurity services.

About the role

Peraton Overview Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus…

Responsibilities

• developing software
• integrating systems
• testing applications

Requirements

• ✓Active TS/SCI with current polygraph; 5+ years software development/engineering; at least one AWS or Kubernetes certification; bachelor's degree in technical discipline highly desired.

Technical tools mentioned

• Java
• Quarkus
• PrimeFaces
• GitLab CI/CD
• AWS

About Peraton

Provider of mission-critical national security technologies and services.

About the role

Peraton Overview Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus…

Responsibilities

• managing dataflows
• modernizing systems
• developing architecture diagrams

Requirements

• ✓10+ years Systems Engineer experience; Bachelor's in systems engineering, computer science, or related (5 years experience may substitute); ability to obtain TS/SCI clearance with polygraph.

Technical tools mentioned

• Apache NiFi
• Linux
• Zookeeper
• Elasticsearch
• Grafana
• NiFi Registry

About Peraton

Provider of mission-critical national security technologies and services.

About the role

Peraton Overview Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus…

Responsibilities

• conducting analysis
• developing architecture baselines
• making recommendations

Requirements

• ✓TS/SCI with polygraph required; BS degree and 8-12 years experience or Masters with 6-10 years, or 4 additional years in lieu of degree; strong writing, analytical, communication, and organizational skills; familiarity with microelectronics and risk management.

Technical tools mentioned

• Microsoft Excel
• Microsoft Word
• Microsoft PowerPoint
• Adobe Acrobat

About Peraton

Provider of mission-critical national security technologies and services.

About the role

Description U.S. Citizenship is Required. Ability to qualify for a US Department of War Top Secret security clearance required. Candidate must be SAP program eligible. This position is in person. Toyon is seeking a passionate and talented Senior Flight Software C++ Engineer to join our growing team developing cutting-edge aerospace flight systems and diagnostic tools. This role is critical to research and development…

Responsibilities

• designing flight software
• leading engineering teams
• developing test fixtures

Requirements

• ✓U.S. citizenship required; ability to obtain Top Secret clearance and SAP eligibility; B.S. in CS/EE or related; 8+ years embedded/real-time software experience; leadership experience; C/C++, Python, Git proficiency.

Technical tools mentioned

• C
• C++
• Python
• Git
• RTOS
• RS-485
• CAN bus
• Ethernet
• SPI
• HDL
• FPGA

About Toyon Research Corporation

Employee-owned U.S. defense research company developing sensor, weapon, RF, aerospace, AI, and autonomous systems for government customers.

About the role

Description U.S. Citizenship is Required. Ability to qualify for a US Department of War Top Secret security clearance required. Candidate must be SAP program eligible. This position is in person. Toyon is seeking a passionate and talented Flight Software C++ Engineer to join our growing team developing cutting-edge aerospace flight systems and diagnostic tools. This role is critical to research and development of new…

Responsibilities

• designing flight software
• developing firmware
• testing software systems

Requirements

• ✓U.S. citizenship required; ability to qualify for Top Secret clearance and SAP eligibility; bachelor's degree in CS, EE, or aerospace engineering; 3+ years professional experience in safety-critical real-time embedded C/C++; strong communication and collaboration skills.

Technical tools mentioned

• C++
• C
• RTOS

About Toyon Research Corporation

Employee-owned U.S. defense research company developing sensor, weapon, RF, aerospace, AI, and autonomous systems for government customers.

About the role

Description U.S. Citizenship Required. Ability to qualify for a US Department of War Top Secret security clearance required. Candidate must be SAP and SCI program eligible. This position is in-person. Toyon Research Corporation is seeking a talented Senior Project Manager to handle multiple complex projects simultaneously; planning, executing, and delivering program objectives on time and within budget. The Senior…

Responsibilities

• managing project schedules
• overseeing budgets
• mitigating project risks

Requirements

• ✓U.S. citizenship required; ability to qualify for Top Secret clearance and SAP/SCI eligibility; Bachelor's degree required, MBA preferred; PMP or CAPM certification; 5+ years relevant experience; proficiency in Microsoft Office Suite.

Technical tools mentioned

• Microsoft PowerPoint
• Microsoft Excel
• Microsoft Project
• Microsoft Office

About Toyon Research Corporation

Employee-owned U.S. defense research company developing sensor, weapon, RF, aerospace, AI, and autonomous systems for government customers.

About the role

About Us AGE Solutions is a premier technology and professional services company, providing in-depth consulting, advanced technology solutions, and essential services throughout the U.S. government, defense, and intelligence sectors. Prioritizing innovation and client-focused solutions, we assist major agencies in addressing intricate issues and ensuring a more secure future. We are seeking a Cybersecurity Engineer…

Responsibilities

• providing PPSM support
• developing compliance policies
• managing cybersecurity repositories

Requirements

• ✓US citizenship, active DoD Top Secret clearance, DoD 8570 IAT Level II certification, 5+ years cybersecurity experience including 2 years in policy development, network security knowledge, and proficiency with vulnerability scanning tools.

Technical tools mentioned

• Nessus
• Qualys
• Rapid7
• SharePoint
• Confluence
• eMASS
• DISA DMZ Whitelist

About AGE Solutions

Privately held technology and professional services consulting firm serving U.S. government, defense, and intelligence sectors.

About the role

About Us AGE Solutions is a premier technology and professional services company, providing in-depth consulting, advanced technology solutions, and essential services throughout the U.S. government, defense, and intelligence sectors. Prioritizing innovation and client-focused solutions, we assist major agencies in addressing intricate issues and ensuring a more secure future. AGE Solutions is seeking a highly…

Responsibilities

• coordinating A&A activities
• tracking project progress
• maintaining documentation

Requirements

• ✓Bachelor's degree (IT preferred); 1-3+ years cybersecurity and A&A experience; active DoD Top Secret clearance; DoD 8570 IAT/IAM Level II certification; proficiency with eMASS, STIG Viewer, Nessus, ACAS, SCAP, or HBSS; understanding of RMF, NIST SP 800-37, NIST SP 800-53, CNSSI 1253.

Technical tools mentioned

• eMASS
• STIG Viewer
• Nessus
• ACAS
• SCAP
• HBSS

About AGE Solutions

Privately held technology and professional services consulting firm serving U.S. government, defense, and intelligence sectors.

About the role

About Us AGE Solutions is a premier technology and professional services company, providing in-depth consulting, advanced technology solutions, and essential services throughout the U.S. government, defense, and intelligence sectors. Prioritizing innovation and client-focused solutions, we assist major agencies in addressing intricate issues and ensuring a more secure future. The AI Security Architect provides…

Responsibilities

• providing security architecture guidance
• applying NIST AI RMF
• evaluating AI/ML architectures

Requirements

• ✓Bachelor's degree or equivalent; 10+ years related experience; DoD 8140 Security Architect certification (e.g., CISSP-ISSAP, CCSP, CISM); current DoD Top Secret clearance; reside within commutable distance of Fort Meade, MD or Chambersburg, PA; hybrid onsite 4 days weekly.

About AGE Solutions

Privately held technology and professional services consulting firm serving U.S. government, defense, and intelligence sectors.

About the role

Advance 3D Vision Research from Algorithms to Open Source Applications. In this position, you’ll research and develop algorithms for photogrammetry, camera calibration, registration, and 3D reconstruction from images and video. Current projects emphasize aerial and satellite imagery, with opportunities to adapt these capabilities to new challenges and data domains such as underwater imagery and synthetic aperture…

Responsibilities

• conducting research
• developing algorithms
• collaborating with researchers

Requirements

• ✓PhD in Computer Science or related field; experience with multiview geometry, AI/ML for 3D reconstruction; proficiency in C++ and/or Python; strong publication record; US citizenship; willingness to obtain TS/SCI clearance.

Technical tools mentioned

• C++
• Python
• TeleSculptor
• KWIVER
• Danesfield

About Kitware

Employee-owned software R&D company serving government, commercial, and academic organizations with open-source and custom AI solutions.

About the role

Advance 3D Vision Research from Algorithms to Open Source Applications. In this position, you’ll research and develop algorithms for photogrammetry, camera calibration, registration, and 3D reconstruction from images and video. Current projects emphasize aerial and satellite imagery, with opportunities to adapt these capabilities to new challenges and data domains such as underwater imagery and synthetic aperture…

Responsibilities

• researching algorithms
• developing solutions
• collaborating with researchers

Requirements

• ✓PhD in Computer Science or related field; experience with multiview geometry, 3D reconstruction, AI/ML methods; proficiency in C++ and/or Python; strong publication record; US citizenship required; willingness to obtain TS/SCI clearance.

Technical tools mentioned

• C++
• Python
• TeleSculptor
• KWIVER
• Danesfield

About Kitware

Employee-owned software R&D company serving government, commercial, and academic organizations with open-source and custom AI solutions.

About the role

Advance 3D Vision Research from Algorithms to Open Source Applications. In this position, you’ll research and develop algorithms for photogrammetry, camera calibration, registration, and 3D reconstruction from images and video. Current projects emphasize aerial and satellite imagery, with opportunities to adapt these capabilities to new challenges and data domains such as underwater imagery and synthetic aperture…

Responsibilities

• conducting research
• developing algorithms
• collaborating with researchers

Requirements

• ✓PhD in Computer Science or related field; experience with multiview geometry, AI/ML for 3D reconstruction; proficiency in C++ and/or Python; strong publication record; US citizenship required; willingness to obtain TS/SCI clearance.

Technical tools mentioned

• C++
• Python
• TeleSculptor
• KWIVER
• Danesfield

About Kitware

Employee-owned software R&D company serving government, commercial, and academic organizations with open-source and custom AI solutions.

About the role

Overview Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization…

Responsibilities

• developing software
• designing architecture
• ensuring security

Requirements

• ✓Bachelor's in Computer Science or related field with 4+ years coding experience (C, C++, C#, Java, JavaScript, Python) or equivalent; active U.S. Top Secret clearance with SCI and polygraph; U.S. citizenship required.

Technical tools mentioned

• C
• C++
• C#
• Java
• JavaScript
• Python

About Microsoft

Multinational technology corporation providing software, cloud, and AI solutions.

About the role

Overview The Cloud & AI organization accelerates Microsoft's mission to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers' heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their…

Responsibilities

• executing red team operations
• developing custom tooling
• collaborating with security teams

Requirements

• ✓Bachelor's in computer science or related field with 4+ years security experience, or Master's with 3+ years; must pass Microsoft background check; citizenship verification required for export control; TS/SCI clearance preferred.

Technical tools mentioned

• Azure
• AWS
• GCP
• Entra ID
• Active Directory
• Windows
• Linux
• Python
• C#
• C++
• Go
• PowerShell

About Microsoft

Multinational technology corporation providing software, cloud, and AI solutions.

About the role

Overview CoreAI is at the forefront of Microsoft’s mission to redefine how software is built and experienced. We are responsible for building the foundational platforms, services, programming models, and developer experiences that power the next generation of applications using Generative AI. Our work enables developers and enterprises to harness the full potential of AI to create intelligent, adaptive, and…

Responsibilities

• building services
• writing code
• supporting operations

Requirements

• ✓Bachelor's degree in computer science or related field with coding experience in C, C++, C#, Java, JavaScript, or Python; active U.S. Top Secret clearance with SCI and polygraph; U.S. citizenship required.

Technical tools mentioned

• C
• C++
• C#
• Java
• JavaScript
• Python
• .NET
• Linux
• Docker
• Kubernetes
• Azure
• AWS

About Microsoft

Multinational technology corporation providing software, cloud, and AI solutions.