Senior Backend Engineer: Java & AWS | Secret Clearance

Agile Defense, Inc.; Arlington (VA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Agile Defense in Rosslyn, VA is seeking a Senior Software Engineer to build distributed backend services and durable APIs within a modern Hub‑and‑Spoke architecture. Your work will contribute to advancing operational AI, enabling mission systems, enterprise governance, agentic AI, and scalable delivery.

Senior Software Engineer — Contribute to development and supporting tools, write clean, maintainable code under guidance of senior engineers.

Qualifications

• Secret clearance required and must have clearance to start.
• 2> 4+ years of software development experience.
• 3> Hands-on experience with Java and Spring Boot.
• 4> Experience designing and implementing RESTful APIs.
• 5> Proficiency with core AWS services.

Responsibilities

• Implement API endpoints and business logic for wrapper service.
• Develop features for OpenFGA data model management.
• Write unit tests and integration tests.
• Debug and resolve software defects.
• Assist with documentation and code examples.
• Participate in code reviews and team ceremonies.
• Support onboarding team with technical questions.
• Contribute to CI/CD pipeline improvements.

Skills

Secret Clearance Required

Java

Spring Boot

RESTful APIs

AWS

Education

High School Diploma or equivalent (GED)

Tools

Django

NATS

Kafka

Redis

ClickHouse

OpenTelemetry

OpenRouter

LiteLLM

OpenFGA

Job description

Agile Defense in Rosslyn, VA is seeking a Senior Software Engineer to build distributed backend services and durable APIs within a modern Hub‑and‑Spoke architecture. Your work will contribute to advancing operational AI, enabling mission systems, enterprise governance, agentic AI, and scalable delivery.

Senior Software Engineer — Contribute to development and supporting tools, write clean, maintainable code under guidance of senior engineers.