Senior API, Microservices Developer

General Dynamics Information Technology

Senior API/Microservices Developer working with a remote agile team at GDIT for EPA customers. Modernizing applications using Java and Spring Boot, ensuring compliance and performance.

Posted 7/30/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $112,840 - $132,250 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in modernizing legacy applications using Spring Boot and Java 17+, with a strong focus on microservice architecture, REST API design, and security best practices. Proven ability to mentor junior developers and conduct comprehensive testing and code reviews.

Highest-signal resume keywords

Core Java (Version 21)Spring Boot EcosystemREST API DesignMicroservice ArchitectureJPA / Hibernate

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Core JavaSpring BootREST API DesignJPAHibernateJUnitMockitoMavenPerformance OptimizationMicroservice Architecture

Soft Skills

MentoringCode Review

Tools & Technologies

GitGitHubBrunoOpen-APISwaggerAI Tools (Copilot)

Industry Keywords

Government ApplicationsRegulated Industry

Tech Stack

Tools & technologies

CloudHibernateJavaJUnitMavenMicroservicesMockitoOracleSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Modernize a legacy application using Spring Boot, Cloud, and modern Java (17+)
Break down monolithic components into independent, loosely coupled modules/microservices
Integrate with existing EPA systems, databases, and APIs
Implement and enforce security best practices
Develop comprehensive unit, integration, and end-to-end tests; conduct code reviews and mentor junior developers

Requirements

What you’ll need

9 + years of related experience
US Citizenship Required: Yes
Technical skills: Core Java (version 21)
Spring Boot ecosystem including Spring-data repositories
Strong knowledge of REST API design using Spring controllers
JPA / Hibernate Relational database design (Oracle, etc)
Junit / Mockito
Git and GitHub
Experience with AI tools (particularly, Copilot)
Bruno or other API testing tools
Open-API / Swagger
Maven
Microservice architecture
Performance optimization
Experience with government or regulated industry applications is a plus

Benefits

Comp & perks

Comprehensive benefits and wellness packages
401K with company match
Competitive pay and paid time off
Full-flex work week to own your priorities at work and at home
Paid leave for vacation, personal business, and illness
Additional paid holidays per year
Paid family leave up to 160 hours in a rolling 12 month period
Short and long-term disability benefits
Life, accidental death and dismemberment insurance