Castellum Inc. · 6 hours ago
Software Engineer
Lakehurst, NJ, US
Full-time
Onsite
Mid, Senior Level
$110K/yr - $135K/yr
3+ years expCastellum Inc. is a company supporting Government customers and national security mission requirements. The role involves designing, developing, testing, and sustaining software-intensive systems used in military command and control and other critical defense missions.
Information ServicesInformation Technology
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Perform software engineering tasks supporting ALRE and mission-critical software-intensive systems
Develop, modify, debug, and test software applications primarily using C#
Support lab and operational site-based system testing
Support Agile development practices including sprint planning, tasking, and iterative delivery
Create and execute software unit and integration tests and document results in accordance with program standards
Support software integration, verification, and validation activities in Windows and Linux environments
Support software/hardware and system integration, verification, and validation testing
Assist with troubleshooting issues across development, test, and operational environments and provide technical recommendations
Produce technical documentation and formal reporting as required
Participate in technical meetings, reviews, and Integrated Product Team (IPT) collaboration with Government and contractor personnel
Comply with applicable processes and guidance including government security and mission requirements
Qualification
Required
Active Secret Clearance required at time of start
Bachelor's degree in computer science, Information Systems, Mathematics, Operations Research, Statistics, Engineering/Science, or related technical discipline
3–10 years of experience in software development, testing, and support
Experience with: C# development
Experience with: Unit testing frameworks and test development and execution
Experience with: Agile, Scrum, Scrum@Scale, and/or methodologies
Experience with: Software documentation and reporting
Experience with: Automated software testing
Experience with: DevSecOps and/or CI/CD pipelines
Experience with: User interface development and testing
Knowledgeable in both: Windows development/test environments
Knowledgeable in both: Linux development/test environments
Company
Castellum Inc.
Castellum, Inc.
51-200 employees
Funding
Current Stage
Public CompanyTotal Funding
$23.32MKey Investors
Live Oak Bank
2025-06-12Post Ipo Equity· $5M
2025-03-16Post Ipo Equity· $4.5M
2024-12-23Post Ipo Equity· $3.6M
Leadership Team
Glen Ives
Chief Growth Officer and CEO Navy Marine Corps Division
Mark Fuller
CEO & President
Recent News
2025-12-09
Castellum, Inc.
2025-11-08
2025-11-08
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