Backend Software Developer

Fantom Corporation•Chantilly, VA

1d•Onsite

About The Position

Fantom Corporation is a mission-focused organization supporting critical programs across the defense and intelligence community. We partner with our customers to deliver high-impact technical solutions while fostering a culture built on trust, expertise, and long-term career growth. We are seeking a Backend Developer to design, develop, and maintain scalable backend services and APIs within a modern cloud-based environment. This role focuses on building robust, high-performance applications using Java and related technologies, with an emphasis on clean architecture, data modeling, and reliable system integration. The ideal candidate has strong experience with Spring Boot, database design, and API development, along with familiarity with cloud platforms and DevOps practices.

Requirements

Must be fully cleared with a recent polygraph
Must be willing and able to work fully onsite at the location listed in this posting
Experience developing backend applications using Java and frameworks such as Spring Boot and Hibernate
Strong understanding of data modeling and database design, including ERD creation
Experience working with Oracle RDS or similar relational databases
Experience building and securing RESTful APIs
Experience with unit and integration testing using JUnit or similar frameworks
Experience with build and deployment tools such as Maven, Gradle, and Jenkins
Experience working in Linux-based environments with shell scripting
Experience using API documentation tools such as Swagger
Experience working with cloud platforms such as AWS
Experience implementing and working with CI/CD pipelines
Familiarity with Agile development methodologies

Nice To Haves

Experience with serverless architectures such as AWS Lambda
Experience designing and implementing microservices architectures
Experience with containerization technologies such as Docker
Experience with orchestration platforms such as Kubernetes
Experience with additional backend technologies such as Node.js or Python
Experience with AWS services such as EKS and Step Functions

Responsibilities

Design, develop, and maintain backend services using Java and frameworks such as Spring Boot and Hibernate
Build and manage RESTful APIs, including endpoint design, request/response handling, and security implementation
Design and optimize database schemas, including creating and maintaining Entity Relationship Diagrams (ERDs)
Work with relational databases such as Oracle RDS to support application data needs
Develop scalable and maintainable backend architectures to support enterprise applications
Implement unit and integration testing using frameworks such as JUnit and maintain code coverage with tools like JaCoCo
Deploy and manage applications using servlet containers such as Tomcat
Support development and deployment in Linux environments, including shell scripting
Utilize CI/CD pipelines and automation tools such as Jenkins, Maven, and Gradle
Document APIs using tools such as Swagger
Collaborate with cross-functional teams in Agile environments to deliver high-quality software