{"id":3316449,"url":"https://alion.io/job/thematchbox-senior-java-software-ontwikkelaar","title":"Senior Java Software Ontwikkelaar","company":{"id":4479208,"name":"TheMatchBox","domain":"thematchbox.ai","url":"https://alion.io/company/thematchbox-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"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":["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":"Java","optional":false},{"name":"Ansible","optional":true},{"name":"Docker","optional":true},{"name":"ElasticSearch","optional":true},{"name":"Jenkins","optional":true},{"name":"Maven","optional":true}],"status":"live","first_seen_at":"2026-10-22T08:15:50Z","employer_posted_date":null,"last_verified_at":"2026-10-22T08:15:50Z","board_verified":false,"closed_at":null,"days_open":6,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":6},"description":"Perhaps you found this vacancy thanks to our software? Because that’s what theMatchBox does: we build smart search engines that match the right job with the right candidate – or vice versa. By making clever use of a whole range of artificial intelligence tools – such as natural language processing, ontologies and large language models – we take into account spelling variations, typos, synonyms, context and everything else needed to compile, in a transparent manner, a list of matching jobs and candidates that is as accurate and comprehensive as possible.\n\ntheMatchBox is part of the Pixid Group and is a fast-growing HR tech scale-up with clients including staffing agencies, job sites and major employers both at home and abroad. Do you enjoy getting to grips with complex issues and would you like to play your part in improving the functioning of the labour market? Then come and join our team, as we could really do with your help.\n\nYour tasks will be very varied. You’ll work on the API and the architecture of our matching software. In consultation with our account managers, you’ll integrate our software with the client’s systems so that all necessary data becomes searchable in our matching engine. Together with the client, you’ll determine which aspects of a job or candidate are important to them when making a match and configure our software accordingly. Finally, you’ll be part of our support team or resolve build issues… Everything is done in close collaboration and consultation with the team, and you’re always welcome to pop in and see us.\n\nYour tasks will be very diverse. You will contribute to the API and the architecture of our matching software. In consultation with our account managers, you will integrate our software at the client's site so that all necessary data becomes searchable in our matching engine. Together with the client, you will determine which aspects of a job or candidate are important to them for a match and configure our software accordingly. Finally, you will work within our support system or fix build issues… Everything is done in close collaboration and consultation with the team, and you can always come to us with your ideas.\n\nWhat do we expect from you? \n• You have a thorough knowledge of Java, \n• You have experience designing or maintaining a software architecture, \n• You enjoy navigating our complex software and algorithms, \n• You are interested in search engines and artificial intelligence, \n• When programming, you value accuracy, quality, and security, \n• You enjoy working independently (we will, of course, help you get started), \n• You can communicate clearly with clients and colleagues, \n• You can express yourself well in English.\n\nWhat is not necessary but is nice to have? \n• Experience with Docker, Elasticsearch, \n• Experience deploying LLMs on GPUs, \n• Building software with Maven and Jenkins, \n• Managing servers with Ansible.","description_format":"text","description_chars":2913,"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":[],"lifecycle":[{"event":"open","at":"2026-10-27T05:14:15Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":6,"expected_fill_days":28,"reasons":["seen:6","win:early"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/thematchbox-senior-java-software-ontwikkelaar","json_url":"https://alion.io/job/thematchbox-senior-java-software-ontwikkelaar.json","meta":{"generated_at":"2026-10-29T06:12:55Z","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":9442,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":4479208},"rest":"https://alion.io/mcp/rest/get_company?id=4479208"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthematchbox-senior-java-software-ontwikkelaar"},{"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%2Fthematchbox-senior-java-software-ontwikkelaar"},{"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%2Fthematchbox-senior-java-software-ontwikkelaar"},{"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/thematchbox-senior-java-software-ontwikkelaar\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthematchbox-senior-java-software-ontwikkelaar"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3316449}},{"tool":"search_jobs","arguments":{"company":"thematchbox.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3316449},"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. Docs: https://alion.io/developers"}}