{"id":118440,"url":"https://alion.io/job/synergy-ecp-senior-full-stack-java-developer","title":"Senior Full Stack Java Developer","company":{"id":5649,"name":"Synergy ECP","domain":"synergyecp.com","url":"https://alion.io/company/synergy-ecp","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"D","score":51,"open_postings":45,"ghost_share":0.822,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Washington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":125000,"max":155000,"currency":"USD","period":"year","gross":null,"usd_annual":155000},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Amazon Aurora","optional":false},{"name":"Amazon CloudWatch","optional":false},{"name":"Amazon EC2","optional":false},{"name":"Amazon ECS","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Confluence","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitLab","optional":false},{"name":"Hibernate","optional":false},{"name":"JavaScript","optional":false},{"name":"Jira","optional":false},{"name":"Kanban","optional":false},{"name":"Keycloak","optional":false},{"name":"Kubernetes","optional":false},{"name":"Maven","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Scrum","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Framework","optional":false},{"name":"Spring Security","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Java","optional":true}],"status":"live","first_seen_at":"2026-06-23T20:57:17Z","employer_posted_date":"2026-06-23","last_verified_at":"2026-10-17T15:09:55Z","board_verified":true,"closed_at":null,"days_open":115,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":115},"description":"The Senior Java Full Stack Developer will be a part of an agile software development team and integral in performing software development, O&M support, and adhere to agile methodology and scrum ceremonies. This role will design and implement backed APIs using Java and Spring Boot, design and build secure and responsive UIs using React, and develop optimized PostgreSQL schemas and queries. The ideal candidate will have demonstrated strong verbal and written skills, experiences with the technology and business tools listed below, and will have proven experience delivering large-scale enterprise applications from concept through deployment.\nPosition Description:\nProvide full-stack design and development support using Java, Spring Model View Controller (MVC) Framework/Spring Security/Spring Boot, React, and PostgreSQL.\nDesign and implement modern UI components using React, TypeScript/JavaScript, and reusable design patterns.\nImplement normalized PostgreSQL schemas and entity relationships supporting system scalability.\nDevelop and maintain secure RESTful APIs for data access and integration.\nSupport and document data migration efforts, ensuring integrity and consistency between legacy and new systems.\nPlan and execute application deployments, version control, and CI/CD pipelines.\nAssist in supporting all aspects of the project to include all phases of life cycle development.\nEnsure compliance with 508 accessibility, enterprise security practices, and other practices as needed.\nSkills and Experience to Support NGE Team:\nMust have strong User Interface (UI) design and developing skills using React, JavaScript, and CSS.\nMust have strong development experience required in the following technologies/areas: Java, Spring Framework/Security 6+, Spring Boot 3+, Hibernate 6+, SQL/PLSQL, PostgreSQL, RESTful APIs, Maven build tool, and Git/GitLab.\nMust have experience with database design and data migration\nAdditional experience required in the following technologies/areas: AWS (S3, EC2, ECS, Aurora, CloudWatch), Keycloak, Kubernetes, Maven, and Docker\nExperience with Agile and Scrum and Kanban frameworks/methodologies.\nExperience with Atlassian tools to include Jira and Confluence.\nExperience with Continuous Integration/Continuous Delivery (CI/CD) tools and automation.\nExceptional analytical and conceptual thinking skills.\nExcellent documentation skills.\nExcellent planning, organizational, and time management skills.\nSelf-motivated with strong initiative to help team grow.\nMinimum of 7+ years of experience.\nComputer Science background w/ degree (Bachelor’s or Master's) in field.\nSecurity Clearance requirement:\nMust possess active TS/SCI clearance to be considered for this role.\nOther Requirements:\nU.S. Citizenship\nCompensation Spotlight: \nFor this role, our typical salary range starts at $125,000 and stretches up to $155,000. But here's the deal - we're not about capping your potential. We're committed to snapping up the best and brightest, and we're ready to put our money where our mouth is. So, if you're one of the rare exceptions to the status quo with the education, experience, and that extra something special, we're not afraid to go above and beyond to secure your talent. Because for us, it's not just about a salary. 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