CareerPlan

Senior API/Java/Python Developer

Arlington, VA, USFull-time$116k–$169k2026-09-25 → 2026-11-11
Based in United StatesNo visa sponsorshipCitizens or permanent residents onlySecurity clearance required

Core

Design, develop, test, and deploy robust and scalable applications and APIs using Java and Python for national security missions.

Role type

Senior IC API/Java/Python Developer

Builds

Backend software applications, RESTful APIs, and microservices for government clients

Domain

National Security / Defense Technology

Deliverable

production ML models | product features

Required skills

Java, Python, RESTful API design, Microservices, SQL/NoSQL databases, Git, Cloud platforms (AWS/Azure/GCP), Containerization (Docker/Kubernetes)

Preferred skills

GraphQL, SOAP, Postman, Swagger UI, Agile/Scrum methodologies

Technologies

Spring Boot, Flask, Django, PostgreSQL, MongoDB, MySQL, AWS, Azure, GCP, Docker, Kubernetes

Responsibilities

Design and implement RESTful APIs and microservices; Integrate third-party APIs and services; Optimize code and system performance; Ensure adherence to security best practices; Collaborate with cross-functional teams; Provide ongoing support and maintenance for applications

Seniority

Senior, hands-on IC