Software Engineer
CastellumNew Jersey, United States
Posted January 29, 2026
110000 - 135000 USD
Full Time
About the Company
Castellum (NYSE: CTM) is a technology firm focused on acquiring and integrating advanced capabilities in cyber security, information warfare, and electronic warfare. Leveraging a strategic acquisition model, the company rapidly expands its portfolio through targeted purchases, beginning with its first acquisition in November 2019. Castellum delivers comprehensive cyber defense, intelligence, and program-management solutions to defense and commercial clients, supported by GSS, PSS, and Navy Seaport-e contract vehicles. Its distinct advantage lies in combining deep technical expertise with agile integration to deliver end-to-end security and information technology services. The company fosters a collaborative culture that prioritizes innovation, operational excellence, and rapid deployment of mission-critical solutions.
Job Description
Specialty Systems, Inc. is seeking a Software Engineer to support the design, development, testing, and sustainment of software-intensive systems used in military command and control, cryptologic mission activities, and other weapons and intelligence systems.
Requirements
- 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
- 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
- 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
Benefits
- Generous Paid Time Off
- 401k Matching
- Retirement Plan
- Visa Sponsorship
- Four Day Work Week
- Generous Parental Leave
- Tuition Reimbursement
- Relocation Assistance
