Software Engineer

About Adelphi

Adelphi builds AI/ML-enabled secure data access and sharing technology for the U.S. intelligence and defense communities, using its Connector software product to enable federated data discovery that cuts intelligence-sharing time from months to minutes. The company's mission is to eliminate data silos, build trust in automation without compromising security, and improve information flow across mission-critical environments. Adelphi closed a $7M Seed round in August 2025 and has Customers across the Intelligence Community and the Department of War.

About the Role

As a Software Engineer, you will contribute to technical direction and help build and maintain mission-critical platform features. This role requires a mix of software development and ML Ops practices. The right candidate will bring solid experience building and shipping production services across the full data stack. Experience in the national security field is a plus. We are an AI-native engineering team. We expect every engineer to leverage LLMs and AI tooling as a core part of how they design, build, ship, and debug software as an integral, daily extension of their workflow.

Location

This role is based in the DC/Metro area; remote candidates will be considered with 20% travel expected.

Clearance Requirement

An active U.S. Government clearance is strongly preferred, but we are open to clearance eligible candidates.

Is this you?

We are an AI-native engineering team. We expect every engineer to leverage LLMs and AI tooling as a core part of how they design, build, ship, and operate agentic systems that turn frontier-model capability into mission outcomes.

• Experience: You have 4-7 years of software engineering experience and are comfortable owning features end-to-end in a production environment. You think in systems, ask good questions, and thrive with autonomy.
• Domain & Tech Stack: You have experience working with production data, are profi...