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ClearanceJobs Tech Stack

Security-cleared talent marketplace for defense and intelligence careers

Defense and Space Manufacturing Centennial, CO 51–200 employees Founded 2002 Public Company

ClearanceJobs operates a niche but operationally complex job board connecting cleared professionals with defense contractors and government agencies. The engineering-heavy hiring mix (97 of 172 active roles) paired with substantial security and ops headcount reflects the company's dual challenge: scaling matching algorithms and platform infrastructure while maintaining DOD compliance, classified-data handling, and supply-chain vetting—pain points that dominate their backlog.

Tech Stack 200 technologies

Core StackMATLAB Linux Active Directory VMware Apache NiFi SQL Server Microsoft Exchange Python Jira Confluence Kubernetes AWS Ansible STK SOAP Windows ExaGrid Dell VxRail C/C++ ARM assembly SharePoint Unix HP Dell Lexmark KVM Microsoft Project VMware Aria PowerCLI Azure+169 more

AdoptingRust

What ClearanceJobs Is Building

◆Challenges

Maintaining security compliance
Policy compliance
Ensuring positive supplier performance
Protecting mission-critical defense systems
Inventory shortages
Vulnerability remediation
Shortening timelines to provide actionable critical information
Ensuring compliance with classified data regulations
Dod ia compliance
Complex network architectures

▲Active Projects

Network automation scaling
Secure overlay network development
Next generation encryptor (nge) encryptors
Pwsa constellation
Pwsa transport layer
Building defensive security solutions for embedded systems
Participate in mission rehearsals and launch support
Prototype development for classic signal processing
Implementing information security education program
Developing automated vulnerability identification software

Hiring Activity

Decelerating170 roles · 30 in 30d

Department

Engineering

97

Security

26

Ops

11

Data

7

Support

6

Sales

4

Logistics

3

HR

2

Seniority

Senior

83

Mid

51

Junior

13

Manager

9

Director

4

Staff

4

Lead

2

Principal

1

Notable leadership hires: Business Development Director, Director

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About ClearanceJobs

ClearanceJobs.com is a career marketplace for professionals holding active Department of Defense, Department of State, or Department of Energy security clearances. The platform serves two sides: cleared candidates posting resumes and searching job listings, and pre-screened defense contractors and government recruiters posting roles and accessing candidate pools. Founded in 2002, the company is headquartered in Centennial, Colorado and is publicly traded. The user base spans defense industry, aerospace, intelligence, and government contracting sectors. Beyond job matching, the company manages compliance with classified-data regulations, supplier vetting, and mission-critical infrastructure protection.

HeadquartersCentennial, CO

Company Size51–200 employees

Founded2002

Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does ClearanceJobs use?

Core infrastructure includes Windows, Linux, SQL Server, AWS, Azure, Kubernetes, and on-premise systems (VMware, Active Directory, ExaGrid). Development spans C/C++, Python, MATLAB, and ARM assembly. Recently adopting Rust.

What are ClearanceJobs' main technical challenges?

Active projects span network automation scaling, secure overlay networks, embedded-systems security, and automated vulnerability identification. Top pain points include DOD IA compliance, classified-data regulation adherence, and reducing detection-to-actionability timelines on critical security issues.