Senior API Developer

Clearance Level
None
Category
Software Engineering
Location
Remote, Working from the USA

Key Skills For Success
API Development

GitHub

GitHub Copilot

PostgreSQL

Spring Boot

##### REQ#:RQ230182

##### Public Trust:None

##### Requisition Type:Regular

##### Your Impact

Own your opportunity to work alongside federal civilian agencies. Make an impact by delivering solutions that improve citizen services millions depends on.

Job Description
-------------------

Our 100% remote agile development team is looking for a Senior Microservices Developer to help us deliver top-quality development support for our Environmental Protection Agency (EPA) customers.

You will work directly with our government customers and with other GDIT developers and business analysts to create advanced software tools tailored to scientific applications. You’ll apply new approaches, principles, methods, techniques and tools compatible with the research environment within EPA. You’ll be a creative problem-solver, understand IT solutions from a users’ perspective and contribute to strategies for a modern integrated IT environment.

MEANINGFUL WORK AND PERSONAL IMPACT

The API Developer requires in-depth knowledge of modular API design and persistence architecture using Spring Boot. The role involves collaborative interactions with EPA staff and contractors, ensuring architecture aligns with legacy systems and supports efficient data flow. The successful candidate will document design and implementation techniques using tools like Atlassian’s Confluence. The developer will optimize services for performance, scalability, and security while adhering to best practices. The selected candidate will resolve development and deployment issues, working closely with API developers, data engineers, and other technical staff to ensure seamless integration with existing databases and applications.

WHAT YOU’LL NEED TO SUCCEED

Bring your engineering expertise along with a drive for innovation to GDIT. You must have:

• Technical skills (bolded items are hard requirements):

+ Core Java (version 17 and 21)
+ Spring Boot ecosystem including Spring Core, Spring Data JPA and repositories
+ A strong knowledge of REST API design using Spring controllers
+ JPA / Hibernate
+ Relational database design (Oracle, Postgres etc)
+ Junit / Mockito
+ Git and GitHub
+ Must be able, and willing, to utilize AI tools (particularly, Copilot)
+ Understanding of API error handling, validation, logging and security
+ Bruno or other API testing tools
+ Open-API / Swagger
+ Maven
+ Microservice architecture
+ Performance optimization
+ Experience with government or regulated industry applications is a plus
+ Strong problem-solving and debugging skills
+ Familiarity with CI/CD, Docker (plus)
+ Ruby on Rails (plus)

• Security clearance level: must be able to obtain EPA Public Trust Level 4
• US citizenship required

Key Responsibilities:

• Modernization \& Refactoring: Modernize a legacy application using Spring Boot, Cloud, and modern Java (17+), replacing legacy components with modular, testable, and maintainable code
• Microservices Architecture: Break down monolithic components into independent, loosely coupled modules/microservices, ensuring proper communication via REST and event-driven patterns
• Integration: Integrate with existing EPA systems, databases, and APIs, ensuring data consistency and compliance with regulatory requirements
• Security: Implement and enforce security best practices, including authentication, authorization, and data protection
• Testing \& Quality: Develop comprehensive unit, integration, and end-to-end tests; conduct code reviews and mentor junior developers

Required Soft Skills/Organizational Skills Qualifications:

• Ability to prioritize and complete a wide variety of tasking workloads with critical deadlines.
• Excellent critical thinking and problem-solving skills.
• Superior oral and written communications skills, and a demonstrated ability to maintain a patient and professional demeanor, with a can-do attitude.
• Ability to communicate technical concepts clearly and professionally to both technical and non-technical parties (who may be key stakeholders).
• Ability to manage equipment and services in remote locations.
• Ability to work effectively in a remote team environment.
• Workability to perform well under pressure.
• Strong customer service orientation.
• Ability to maintain an organized workflow, with a high degree of attention to detail.

EDUCATION AND EXPERIENCE:

• Education: Bachelor of Arts/Bachelor of Science
• Experience: 7–12+ years in Java enterprise application development

### Work Requirements

Years of Experience
7 + years of related experience

• may vary based on technical training, certification(s), or degree

Certification
Travel Required
None

Citizenship
U.S. Citizenship Required

### Salary and Benefit Information

The likely salary range for this position is $105,400 - $142,600. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

### Our Identity Verification Process

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

### About Our Work

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans