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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Developer - **Company:** J5 Consulting - **Location:** Chantilly, VA, United States - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Spring Security, Amazon Web Services, Automation of Tests, Big Data, Cyber Security, Databases, Continuous Delivery, Continuous Integration, Extract Transform Load (ETL), Database Queries, DevOps, Elasticsearch, MapReduce, Apache HBase, Spring Framework, Python (Programming Language), PostgreSQL, MongoDB, MySQL, NoSQL, Software Engineering, SQL Databases, TypeScript, Web Applications, ReactJS, Spring-boot, Ios Frameworks, Backend, Git, Semi-structured Data, Apache Nifi, Restful APIs, Jenkins - **Published:** May 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=4368d9894879a32c ## About the Role At least two of the Contractor Team shall have the following required skills, certifications and demonstrated experience: * At least two of the Contractor Team shall support the full stack of the application. The other proposed Contractor Team members may have a limited focus in one or more required areas.3. Demonstrated experience building and maintaining secure Java 8+ web applications using the Spring Framework, Spring Boot, and Spring Security. * Demonstrated experience supporting projects using Python. * Demonstrated experience building and maintaining modern client-side interfaces using industry-standard UI frameworks, JavaScript, Typescript, and React. * Demonstrated experience designing, developing, querying, and maintaining ElasticSearch and related technologies. * Demonstrated experience designing, developing, and maintaining SQL-based databases, including PostgreSQL and MySQL. * Demonstrated experience developing PL/SQL database scripts, including procedures, functions, exception handlers, and triggers. * Demonstrated experience writing and tuning complex queries against structured and unstructured data sets. * Demonstrated experience developing, documenting, and maintaining secure and scalable REST APIs. * Demonstrated experience integrating services using messaging technologies, including service buses, publish and subscribe, and MQ. * Demonstrated experience managing and developing software applications in an AWS environment * Demonstrated experience working with geo-locational data at both the backend and the application tier. * Demonstrated experience developing software in a DevOps environment. * Demonstrated experience maintaining Jenkins Continuous Integration/Continuous Delivery (CI/CD) pipelines with automated testing and deployment. * Demonstrated experience using Git as a source code repository. Highly Desired Skills and Demonstrated Experience: * Demonstrated experience working with big data processing and NoSQL database such as MongoDB, ElasticSearch, MapReduce, and HBase. * Demonstrated experience with Apache NiFi. * Demonstrated experience with the Extract, Transform, and Load (ETL) processes. * Demonstrated experience managing and mitigating IT security vulnerabilities using Plans of Actions and Milestones (POAMs), and applying FISMA security controls., * The successful candidate must have an active U.S. Government Top Secret Security Clearance with a Full Scope Polygraph. ## Description The Sponsor applies technical resources to accelerate the timely, reliable, and secure delivery of open-source data, information, and insights. The Sponsor requires application development support to maintain and enhance operations on an existing collection and data enrichment platform. 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