{"id":2294385,"url":"https://alion.io/job/michael-page-mainframe-developer","title":"Mainframe Developer","company":{"id":2265491,"name":"Michael Page","domain":"michaelpage.be","url":"https://alion.io/company/michaelpage-be","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Enterprise Apps","role_family":"Enterprise Apps","seniority":null,"employment_type":"full_time","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":"COBOL","optional":false}],"status":"live","first_seen_at":"2026-09-25T00:15:16Z","employer_posted_date":null,"last_verified_at":"2026-09-25T00:15:16Z","board_verified":false,"closed_at":null,"days_open":17,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":17},"description":"Our client, a leading Belgian organization operating in a key essential sector, is looking for a Mainframe Developer (COBOL) to strengthen its IT team. You will contribute to the development and evolution of strategic applications used both internally and by a wide network of partners.\n\nYou will join a stable, dynamic, and quality-driven environment where your technical expertise will directly contribute to the performance of the company's operations. This position is located in Brussels.\n\nJobomschrijving\n\nAs an Mainframe Developer (COBOL), you will be involved throughout the entire application lifecycle, including:\n\nAnalyzing both functional and technical requirements\nDesigning, developing, and maintaining existing applications\nContributing to the evolution of platforms and the integration of new solutions\nEnsuring the quality, performance, and long-term maintainability of developments\nProducing the required technical documentation\nIdentifying opportunities for improvement and proposing innovative solutions\nCollaborating closely with both business and technical teams\nWorking across back-end development, application interfaces, and system integrations\n\nYou are able to work autonomously on a project, from the initial analysis phase through to deployment into production.\n\nBachelor's or Master's degree in Computer Science, or equivalent professional experience\nExperience with, or solid knowledge of, procedural programming, including:\nC\nCOBOL\nPL/I\n\nKnowledge of relational databases, including:\nSQL\nDB2\n\nStrong analytical and problem-solving skills\nExcellent organizational skills with strong attention to detail\nGood command of French and/or Dutch, both written and spoken\nGood reading comprehension of technical English\n\nExperience with or knowledge of the following technologies would be considered an asset:\n\nz/OS environment\nCICS\nJCL\nPL/I\nSOA / ESB\nTWS\nWeb Services development\nJava\nKnowledge of accounting or financial principles","description_format":"text","description_chars":1955,"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":"2026-10-11T19:30:43Z"}],"visa":[],"liveness":{"score":31,"band":"fade","label":"Fading","p_open":0.85,"p_active":0.412,"p_room":0.9,"age_days":17,"expected_fill_days":33,"reasons":["seen:17","agency","win:mid"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/michael-page-mainframe-developer","json_url":"https://alion.io/job/michael-page-mainframe-developer.json","meta":{"generated_at":"2026-10-12T17:27:38Z","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":27960,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":2265491},"rest":"https://alion.io/mcp/rest/get_company?id=2265491"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmichael-page-mainframe-developer"},{"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%2Fmichael-page-mainframe-developer"},{"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%2Fmichael-page-mainframe-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/michael-page-mainframe-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmichael-page-mainframe-developer"}]}