Senior API Developer

General Dynamics Information Technology, Inc.; North Carolina; Hybrid; USD 105,000 - 143,000; Full time

Benefits offered by this job

Health insurance

401(k) with company match

Paid time off and holidays

Flexible work weeks

Job summary

General Dynamics Information Technology, Inc. is seeking a senior Java professional to modernize a legacy application using Spring Boot, cloud-native approaches, and Java 17+. You will drive microservices, ensure secure integration with EPA systems, and lead comprehensive testing and code reviews.

The role emphasizes strong problem-solving, CI/CD, and familiarity with government-regulated environments. US citizenship and ability to obtain EPA Public Trust Level 4 are required.

Qualifications

• 7–12+ years in Java enterprise application development.
• Experience with Spring Boot and RESTful services.
• Proficiency in relational databases (Oracle, Postgres).
• Experience in a regulated government context is a plus.

Responsibilities

• Modernization & Refactoring: modernize a legacy app using Spring Boot, Cloud, and Java 17+.
• Microservices: split monoliths into independent modules with REST/event-driven communication.
• Integration: connect with EPA systems, databases, and APIs ensuring data consistency.
• Security: enforce authentication, authorization, and data protection best practices.
• Testing & Quality: write unit/integration/e2e tests, conduct code reviews, mentor juniors.

Skills

Core Java 17/21

Spring Boot

REST API design

JPA / Hibernate

Relational DB design

JUnit/Mockito

Git & GitHub

AI tools (Copilot)

API testing tools

OpenAPI / Swagger

Maven

Microservice architecture

CI/CD

Docker

Ruby on Rails

Security clearance

EPA Public Trust Level 4

US citizenship

Education

Bachelor's degree in Computer Science or related field

Tools

Git

Copilot

Job description

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

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

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

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.

Scheduled Weekly Hours: 40 Travel Required: None Telecommuting Options: Remote Work Location: Any Location / Remote Additional Work Locations:

Total Rewards at GDIT:

• Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match.


• To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.


• GDIT typically provides new employees with 15 days of paid leave per calendar year to be used for vacations, personal business, and illness and an additional 10 paid holidays per year.


• Paid leave and paid holidays are prorated based on the employee’s date of hire.


• The GDIT Paid Family Leave program provides a total of up to 160 hours of paid leave in a rolling 12 month period for eligible employees.


• To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.

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 Opportunity Owned From working with technologies like AI, cyber and cloud to careers in intelligence and health, we offer endless opportunities to apply your expertise to create a safer, smarter world. For more information about GDIT's Privacy Policy, click here: Privacy Policy | GDIT