Sr. Software Engineer (SECRET Clearance)

Job Description

Job Description

Title: Sr. Software Engineer

Location: Downtown DC - 4 days a week - Remote Mondays

Clearance: DoD Secret Clearance

Money: 75/hr - 80/hr

Job description

• Experience: 8+ years of software engineering experience, with DoD IT system development expertise.
• Clearance Requirement: Secret (TS Preferred).
• Certifications Preferred: Security+, AWS Certified DevOps Engineer, CISSP, DoD 8570.01-M IAT Level III, or similar
• Strong background in C#, .NET, Java, Python, AWS, and DevSecOps methodologies.
• Experience with cloud-based architecture, containerized applications (Docker/Kubernetes), and Zero Trust security principles.
• Advanced knowledge of DoD cybersecurity requirements, including DISA STIGs and RMF compliance.
• Proven ability to lead development teams, mentor engineers, and drive technical innovation.

Contract-Specific Responsibilities:

Software Development & Architecture

• Lead development enhancements, modernizing legacy components into cloud-native microservices.
• Oversee full-stack development and deployment from a suite of using C#, .NET, Java, Python, JavaScript, and AWS-based services, including implementation and validation.
• Design, implement, and optimize scalable database architectures, including schema design and data modeling, to support application needs.
• Design and maintain data models for spectrum frequency allocation and NTIA transaction processing.
• Implement Zero Trust Architecture (NIST 800-207) and DoD DevSecOps best practices.
• Develop automated machine-to-machine communication interfaces for DoD and coalition partner spectrum systems.

Software Integration & Testing

• Lead System Integration Testing (SIT), User Acceptance Testing (UAT), and Performance Testing to validate software performance under operational loads.
• Oversee CI/CD pipeline optimization, integrating security scanning tools within GitLab CI/CD, SonarQube, and AWS Lambda.
• Direct software sustainment efforts to address security patches, bug fixes, and IAVA compliance requirements.

Cybersecurity & Compliance

• Ensure all software updates meet DoD RMF and DISA STIG compliance requirements.
• Lead software security hardening efforts, incorporating encryption, access control, and secure authentication mechanisms.
• Develop, update, and maintain comprehensive technical documentation, including user manuals, system documentation, and training materials, to ensure clarity and usability.

Mentorship & Stakeholder Engagement

• Guide junior and mid-level developers, conducting code reviews, architecture discussions, and Agile sprint planning.
• Provide technical briefings, support, and recommendations to program leadership, ensuring software aligns with DoD’s evolving mission needs.

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities. Reasonable accommodation is available for qualified individuals with disabilities, upon request.