{"id":4042813,"url":"https://alion.io/job/engiflex-freelance-of-vast-medior-java-developer","title":"Freelance of vast - Medior Java Developer","company":{"id":4413137,"name":"EngiFlex","domain":"engiflex.be","url":"https://alion.io/company/engiflex","size_band":"51-200","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":"Manatal","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"freelance","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Antwerp, 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":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"Grafana","optional":false},{"name":"Hibernate","optional":false},{"name":"JavaScript","optional":false},{"name":"Jenkins","optional":false},{"name":"JUnit","optional":false},{"name":"Kibana","optional":false},{"name":"Kubernetes","optional":false},{"name":"Maven","optional":false},{"name":"Mockito","optional":false},{"name":"Oracle","optional":false},{"name":"Rest API","optional":false},{"name":"SOAP","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Java","optional":true},{"name":"Kotlin","optional":true}],"status":"live","first_seen_at":"2026-11-10T22:46:38Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-10T22:46:38Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Taken en verantwoordelijkheden\nJe maakt deel uit van een DevOps-team dat nieuwe applicaties en componenten ontwikkelt voor een havenomgeving en de bijbehorende operationele processen. Je werkt mee aan de verdere verbetering en uitbreiding van informatie- en controlesystemen voor de haven en de havengemeenschap.\nOntwerpen, bouwen en onderhouden van applicaties, microservices en miniservices in Java binnen een DevOps-omgeving.\nInstaan voor setup, scripting en development binnen een stack met Java, Angular, Hibernate, SOAP, REST, Spring Boot, Oracle Database en Kafka.\nIntegreren met Java-backends via RESTful API's met JSON-, XML- en Avro-payloads.\nSchrijven en opvolgen van unit- en integratietesten.\nInrichten van testomgevingen, opstellen van testscenario's en uitvoeren van verschillende testvormen.\nJouw profiel\nJe hebt een aantoonbare opleiding met certificering, of gelijkwaardige ervaring, in programmeertalen en omgevingen zoals Java/J2EE.\nJe hebt ervaring met de ontwikkeling van Java-gebaseerde toepassingen en met Java 8 of hoger. Grondige kennis van Java 11, 17 en 21 is vereist.\nJe kent Spring en Spring Boot, Hibernate, REST API's en SQL-databases.\nJe hebt ervaring met microservices en event-driven architectuur, bijvoorbeeld met Kafka-events, en met Kafka en Kubernetes.\nJe voert programmeeropdrachten vlot uit, van coderen en testen tot debuggen.\nJe hebt kennis van Angular, HTML, CSS, TypeScript en JavaScript.\nJe kunt werken met Git, Docker, Jenkins, Nexus, Maven en Sonar.\nJe hebt ervaring met Mockito en JUnit en kunt Grafana en Kibana gebruiken voor monitoring en analyse.\nJe bent vertrouwd met Agile- en Scrum-werking, Agile ontwikkelmethoden en DevOps.\nJe hebt ervaring met het ontwikkelen, testen en uitrollen van businessapplicaties in een 24x7-context.\nJe communiceert professioneel en helder in het Nederlands en het Engels.\nJe functioneert goed in multidisciplinaire teams.\nKennis van nautische procedures en port information systems is een sterk pluspunt.\nAanbod\nJe zal deel uitmaken van een groeiende KMO met ruimte voor initiatief en persoonlijke ontwikkeling. Wij zorgen ervoor dat je in een uitdagende maar aangename werkomgeving terecht komt met leuke collega's. Samen met jou stippelen we een carriereplan uit, met aandacht en budget voor bijkomende opleidingingen / certificaties. Je kan rekenen op een motiverend salaris, aangevuld met extralegale voordelen, inclusief bedrijfswagen (of alternatieve vergoeding).\n(Freelance is ook mogelijk)","description_format":"text","description_chars":2483,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Recruiting & Staffing","Engineering Services","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-11-10T22:46:38Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":6,"reasons":["conf:2","win:early"],"computed_at":"2026-11-11T01:46:02Z"},"pay":null,"html_url":"https://alion.io/job/engiflex-freelance-of-vast-medior-java-developer","json_url":"https://alion.io/job/engiflex-freelance-of-vast-medior-java-developer.json","meta":{"generated_at":"2026-11-11T01:46:02Z","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":241,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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-freelance-of-vast-medior-java-developer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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-freelance-of-vast-medior-java-developer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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-freelance-of-vast-medior-java-developer"},{"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-freelance-of-vast-medior-java-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fengiflex-freelance-of-vast-medior-java-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4042813}},{"tool":"search_jobs","arguments":{"company":"engiflex.be","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4042813},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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