Castellum Inc.

Backend Engineer

• Design, develop, test, and maintain secure back-end software systems
• Support secure software development lifecycle (SSDLC) processes and best practices
• Develop and maintain APIs, services, and application logic in support of mission systems
• Collaborate with cross-functional teams including security, operations, and system engineers
• Troubleshoot, debug, and optimize backend services in Linux and Windows environments
• Ensure software complies with government security and compliance requirements
• Document system designs, code, and technical processes

Back End Software Engineer

Security Engineer

• Conduct red team operations and offensive cyber assessments in support of mission objectives
• Emulate real-world adversaries using advanced tactics, techniques, and procedures (TTPs)
• Identify, exploit, and document vulnerabilities across enterprise Linux and Windows environments
• Execute penetration testing activities using industry-standard tools and frameworks
• Develop clear, actionable reports detailing findings, risk levels, and remediation guidance
• Collaborate with government stakeholders and internal teams to enhance cybersecurity posture
• Support operations in classified and mission-critical environments

Back End Software Engineer

Offensive Security Engineer