Java Engineer II

Agile Defense

. Build distributed backend services and durable APIs supporting a modern Hub-and-Spoke architecture .

Posted 9/29/2026full-timeRosslyn • Virginia • United StatesMid-LevelSenior💰 $115,000 - $140,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and maintaining distributed backend services and APIs, with a strong focus on microservices architecture and cloud-native integration. Proficient in Java, Spring Boot, and AWS, with a commitment to high reliability and continuous improvement in operational workflows.

Highest-signal resume keywords

Java DevelopmentSpring Boot FrameworkRESTful API DesignAWS Services ProficiencyMicroservices Architecture

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend DevelopmentAPI DevelopmentUnit TestingIntegration TestingDebugging

Soft Skills

CollaborationProblem-SolvingTechnical Support

Tools & Technologies

DjangoNATSKafkaRedisClickHouseOpenTelemetryOpenRouterLiteLLM

Certifications & Qualifications

Secret Clearance

Industry Keywords

Distributed SystemsEvent-Driven ArchitectureCI/CD PipelineAI OperationsDevSecOps

Tech Stack

Tools & technologies

AWSCloudCyber SecurityDistributed SystemsDjangoJavaKafkaMicroservicesRedisSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Build distributed backend services and durable APIs supporting a modern Hub-and-Spoke architecture
Develop and maintain backend microservices and distributed systems for enterprise AI operations
Integrate microservices with cloud-native platforms
Ensure continuous monitoring and high reliability across operational workflows
Build and optimize APIs and event-driven architectures for scalable, reliable data flow
Implement API endpoints and business logic for wrapper service
Develop features for OpenFGA data model management
Write unit 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

Requirements

What you’ll need

High School Diploma or equivalent (GED) required
4–6 years of experience
Hands-on experience with Java and Spring Boot
Background designing and implementing RESTful APIs
Proficiency with core AWS services
Secret clearance required to start
Experience in a fast-paced and mission-focused environment, collaborating with AI, DevSecOps, data engineering, platform engineering, and cybersecurity teams
Familiarity with Django, NATS, Kafka, Redis, ClickHouse, OpenTelemetry, OpenRouter, and LiteLLM is advantageous