{"id":3078638,"url":"https://alion.io/job/engiflex-senior-full-stack-java-developer-freelance-possible","title":"Senior Full Stack Java Developer (Freelance possible)","company":{"id":4413137,"name":"EngiFlex","domain":"engiflex.be","url":"https://alion.io/company/engiflex","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Manatal","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"freelance","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Brussels, Belgium"],"countries":["BE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"Apache Tomcat","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"ElasticSearch","optional":false},{"name":"GitLab CI","optional":false},{"name":"Java","optional":false},{"name":"Jenkins","optional":false},{"name":"JUnit","optional":false},{"name":"Kubernetes","optional":false},{"name":"Mockito","optional":false},{"name":"Nginx","optional":false},{"name":"OpenShift","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Querydsl","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Data JPA","optional":false},{"name":"Spring Security","optional":false},{"name":"TypeScript","optional":false},{"name":"Web Components","optional":false},{"name":"EU AI Act","optional":true},{"name":"JavaScript","optional":true},{"name":"Kotlin","optional":true},{"name":"Model Context Protocol","optional":true},{"name":"Prompt Engineering","optional":true}],"status":"live","first_seen_at":"2026-10-22T11:25:31Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-23T13:06:54Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Job Description:\nAs a Full Stack Developer, you contribute to the design, development and maintenance of web applications with a strong focus on quality, performance and maintainability. You work with stakeholders and development teams to translate functional needs into reliable software solutions.\nProject Context:\nYou will contribute to applications in the healthcare domain, including web components that support patient referral prescriptions, Vitalink and related digital services.\nKey Responsibilities:\nDevelop and maintain full-stack web applications using Java, Angular, Typescript, HTML and CSS.\nBuild back-end components with Spring Boot and Spring Data JPA, and work with PostgreSQL and Elasticsearch.\nCollaborate with cross-functional teams to define, design and deliver new features.\nMonitor application performance, resolve bottlenecks and fix defects.\nApply Test-Driven Development practices and contribute to code quality, structure and automation.\nWrite and execute unit, integration and end-to-end tests, including work with JUnit.\nProvide technical guidance to less experienced developers.\nFollow current development practices around CI/CD, containerization and secure software delivery.\nKeep up with relevant evolutions in software engineering and apply them where useful.\nYour profile\nYou have solid experience as a full-stack developer.\nYou have strong hands-on knowledge of Angular, Typescript, HTML, CSS, Java, Spring Boot, Spring Data JPA, PostgreSQL and Elasticsearch.\nYou are comfortable working with testing practices such as TDD and with unit testing frameworks such as JUnit.\nYou have knowledge of Spring Security, Flyway, QueryDSL, Mockito or similar tools.\nYou are familiar with hexagonal architecture and deployments on Kubernetes or OpenShift.\nExperience with Docker, Tomcat, Nginx, GitLab CI/CD, Jenkins or GHCP is a plus.\nYou have a good understanding of modern AI topics such as the EU AI Act, LLMs, security, confidentiality, prompt engineering, agents and MCP.\nYou adapt easily to evolving standards and guidelines related to AI usage.\nYou communicate fluently in either Dutch or French and have a working understanding of the other language.\nYou work accurately, communicate clearly and can operate independently within a team environment.\nOffer\nYou will be part of a growing Belgian SME where initiative and personal development are encouraged. We will provide you with an enjoyable work environment with fun colleagues. We will work out a career plan with you, with attention and a budget for extra education/certification. You can count on an attractive salary, supplemented with extra-legal benefits, including a company car.\n(Freelance is also possible)","description_format":"text","description_chars":2699,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Dutch","level":"All levels","optional":false},{"language":"French","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-22T11:25:31Z"}],"visa":[],"liveness":{"score":54,"band":"ok","label":"Likely open","p_open":1,"p_active":0.542,"p_room":1,"age_days":0,"expected_fill_days":36,"reasons":["conf:2","agency","velocity","win:early"],"computed_at":"2026-10-23T05:54:15Z"},"pay":null,"html_url":"https://alion.io/job/engiflex-senior-full-stack-java-developer-freelance-possible","json_url":"https://alion.io/job/engiflex-senior-full-stack-java-developer-freelance-possible.json","meta":{"generated_at":"2026-10-23T13:17:21Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":19796,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4413137},"rest":"https://alion.io/mcp/rest/get_company?id=4413137"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fengiflex-senior-full-stack-java-developer-freelance-possible"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fengiflex-senior-full-stack-java-developer-freelance-possible"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fengiflex-senior-full-stack-java-developer-freelance-possible"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/engiflex-senior-full-stack-java-developer-freelance-possible\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fengiflex-senior-full-stack-java-developer-freelance-possible"}]}