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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Full-Stack Developer Senior - **Company:** Science Applications International Corporation - **Location:** Ashburn, VA, United States - **Experience:** Expert - **Salary:** $120,001.0 - $160,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Agile Methodology, Amazon Web Services, Component-Based Software Engineering, JIRA, Unit Testing, Cloud Computing, Continuous Integration, Database Queries, Software Debugging, Software Design Patterns, Web Development, Amazon DynamoDB, Enterprise JavaBeans, Design of User Interfaces, Hibernate (Java), IBM WebSphere MQ, Interoperability, Java Database Connectivity, Java Persistence API, Spring Framework, Junit, PostgreSQL, MongoDB, NoSQL, Software Engineering, Systems Architecture, TypeScript, Web Applications, Extensible Markup Language (XML), Transaction Processing (Computing), Freeform SQL, Enterprise Software Applications, Istio, AWS Lambda, Backend, Gitlab, Containerization, AngularJS, Integration Tests, Information Technology, Apache Kafka, Kibana, Serverless Computing, Docker, Jenkins, Microservices - **Published:** September 25, 2026 - **Apply:** https://www.careerarc.com/job-listing/saic-jobs-java-full-stack-developer-senior-53128433 ## About the Role * Bachelor's degree in computer science or related engineering field with 5+ years of related technical experience. * At least 5 years of strong Java JEE design and software development experience including designing, developing, and documenting large-scale enterprise software systems. * At least 5 years of working with Applications on Cloud utilizing serverless hosted services like AWS lambda. * Java web application development required * Experience with : + Java 21 + Spring + Angular + Micro Services architecture + Docker/Kubernetes Container + AWS + XML Message builder & XML parsing + Postgres DB * Strong SQL skills - Critical debugging and plan analysis * Experience with UI development (Javascript/Typescript) * Extensive skills in JDBC/JPA/Hibernate * Knowledge of standard design patterns. * Demonstrated expertise in software engineering practices (e.g., reading/generating software specs, design patterns, continuous integration) * Gitlab/JIRA/Jenkins for CI/CD Desired Skills and Experience * Master's degree in Computer Science or related field is a plus * Experience with device integration (i.e. fingerprint scanner) * First-hand experience working with large project teams (working with the Federal Government a strong plus) * Demonstrated ability to think critically and creatively to develop innovative solutions to software problems * Ability to develop and maintain components with stringent performance requirements * Agile development experience a plus * AWS ISTIO * Spring Scheduler * IBM MQ and Kafka Queues * Debugging with AWS Kibana * Experience with NoSQL DBs like MongoDB, DocumentDB, DynamoDB etc. * This is a highly technical and hands on position Customer Requirements * Clearance - Ability to obtain and hold a public trust position and favorable suitability based on a CBP Background Investigation * Citizenship - Must be a US Citizen * Location - Required to be on-site in Ashburn, VA 4 days per week for the first year of employment. After their first year, they will have the option to work a hybrid schedule (2 days on-site) depending on the needs of the team. ## Description Description SAIC is currently seeking a motivated, career and customer oriented, and hands on mid-level Java Developer with cloud experience to join our team to begin an exciting and challenging career in Ashburn, Va. This position requires 4 days per week on-site in Ashburn, VA for the first year of employment. Job Responsibilities * Working closely with the tech lead and senior developers, the developer will participate in the system architecture design, development, integration testing and validation, and all aspects of the software life cycle (requirements to design to implementation to test) for a java backend application involving extensive Messaging and Transaction processing * Must be hands on and be able to design and develop Java code as dictated by project requirements as needed and work with/mentor junior team members. * The candidate will be expected to learn and adhere to the continuous integration, automated unit testing and other AGILE practices established within the team using the tools that are currently used by the team * The candidate is expected to diagnose and fix issues in existing application components as part of maintenance * Design, implement, and unit test REST microservices with Java, Spring, and JUnit * Develop web applications with Angular that communicate with backend microservices * Write complex SQL queries and perform data modeling Qualifications Required Skills and Experience * Bachelor's degree in computer science or related engineering field with 5+ years of related technical experience. * At least 5 years of strong Java JEE design and software development experience including designing, developing, and documenting large-scale enterprise software systems. * At least 5 years of working with Applications on Cloud utilizing serverless hosted services like AWS lambda. * Java web application development required * Experience with : + Java 21 + Spring + Angular + Micro Services architecture + Docker/Kubernetes Container + AWS + XML Message builder & XML parsing + Postgres DB * Strong SQL skills - Critical debugging and plan analysis * Experience with UI development (Javascript/Typescript) * Extensive skills in JDBC/JPA/Hibernate * Knowledge of standard design patterns. * Demonstrated expertise in software engineering practices (e.g., reading/generating software specs, design patterns, continuous integration) * Gitlab/JIRA/Jenkins for CI/CD Desired Skills and Experience * Master's degree in Computer Science or related field is a plus * Experience with device integration (i.e. fingerprint scanner) * First-hand experience working with large project teams (working with the Federal Government a strong plus) * Demonstrated ability to think critically and creatively to develop innovative solutions to software problems * Ability to develop and maintain components with stringent performance requirements * Agile development experience a plus * AWS ISTIO * Spring Scheduler * IBM MQ and Kafka Queues * Debugging with AWS Kibana * Experience with NoSQL DBs like MongoDB, DocumentDB, DynamoDB etc. * This is a highly technical and hands on position Customer Requirements * Clearance - Ability to obtain and hold a public trust position and favorable suitability based on a CBP Background Investigation * Citizenship - Must be a US Citizen * Location - Required to be on-site in Ashburn, VA 4 days per week for the first year of employment. After their first year, they will have the option to work a hybrid schedule (2 days on-site) depending on the needs of the team. Target salary range: $120,001 - $160,000. The estimate displayed represents the typical salary range for this position based on experience and other factors. ## Related Videos - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) - [The Evolution of Enterprise Java with Jakarta EE 11 and Beyond](https://www.wearedevelopers.com/videos/1562-the-evolution-of-enterprise-java-with-jakarta-ee-11-and-beyond) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026)