Senior Software Developer

Company Overview

Pantheon Data (a Kenific Holding company) is a private, small business based in the Washington, DC, area. Pantheon Data was founded in 2011, initially providing acquisition and supply chain management services to the US Coast Guard. Our service offerings have grown in the past ten years, including infrastructure resiliency, contact center operations, information technology, software engineering, program management, strategic communications, engineering, and cybersecurity.

We have also grown our customer base to include commercial clients. The company has used this experience to expand our service offerings to other agencies within the Department of Homeland Security (DHS), the Department of Defense (DoD), and other Federal Civilian Agencies.

The Defense Health Agency (DHA) is a joint, integrated Combat Support Agency that enables the Army, Navy, and Air Force medical services to provide a medically ready force and a ready medical force to Combatant Commands during peacetime and wartime. Established to enhance the delivery of integrated, affordable, and high-quality health services, the DHA supports Military Health System (MHS) beneficiaries and drives the integration of clinical and business processes across the MHS.

The agency plays a pivotal role in ensuring military personnel and their families receive comprehensive healthcare, thus maintaining operational readiness and overall force health protection.

Pantheon Data is seeking a Senior Software Developer with expertise in Microsoft C# and .NET frameworks to support the Defense Health Agency (DHA) in modernizing and migrating legacy applications to AWS Gov Cloud. The developer will play a key role in re-architecting mission-critical applications to improve scalability, security, and compliance within DHA's enterprise IT environment. This role requires deep technical proficiency, strong collaboration skills, and the ability to deliver cloud-ready solutions aligned with stringent federal standards.

• Analyze existing C# and .NET applications to document architectures, dependencies, and integration points.
• Lead the re-architecting and modernization of legacy .NET applications to ensure optimal performance and security in AWS Gov Cloud.
• Implement code changes and system modifications to meet DHA's compliance requirements, including HIPAA, FedRAMP, and DoD Impact Level (IL) standards.
• Collaborate with Dev Sec Ops  teams to integrate secure coding practices, CI/CD pipelines, Git repositories, and automated testing into migration workflows.
• Design and execute migration strategies for transitioning applications from on-premises to cloud-native AWS services.
• Modify, optimize, and refactor applications to leverage AWS services (e.g., EC2, S3, RDS, Lambda) for scalability and resiliency.
• Develop new cloud-native features and functionalities to enhance DHA's enterprise applications.
• Conduct unit, regression, and performance testing to validate applications in the DHA cloud environment.
• Ensure security, compliance, and auditability are embedded throughout the software development lifecycle.
• Communicate progress, risks, and technical challenges clearly to DHA stakeholders and leadership.
• Produce detailed documentation, migration playbooks, and best practices to support repeatable and scalable modernization efforts.

• Bachelor's degree in Computer Science, Information Systems, Business Administration, or a related field.
• Minimum of 8 years of experience in software development with a strong background in C# and .NET frameworks.
• Proven experience in migrating and re-architecting applications to AWS cloud environments.
• Familiarity with AWS services and cloud architecture best practices.
• Strong understanding of cloud computing concepts and AWS services.
• Experience working within federal environments, adhering to various security and compliance standards.
• Strong knowledge of Dev Ops principles and experience with Git and associated tools.
• Excellent problem-solving skills and ability to work independently or as part of a team.
• Effective communication and teamwork abilities.
• Ability to work…