{"id":2546409,"url":"https://alion.io/job/synsel-techniek-senior-back-end-developer","title":"Senior Back-end Developer","company":{"id":4376709,"name":"Synsel Techniek","domain":"synsel.nl","url":"https://alion.io/company/synsel-techniek","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":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Groningen, Netherlands"],"countries":["NL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":4250,"max":5250,"currency":"EUR","period":"month","gross":null,"usd_annual":70068},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"CI/CD","optional":false},{"name":"GitLab","optional":false},{"name":"Ionic","optional":false},{"name":"Laravel","optional":false},{"name":"PHP","optional":false},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-09-30T13:10:12Z","employer_posted_date":null,"last_verified_at":"2026-09-30T13:10:12Z","board_verified":false,"closed_at":null,"days_open":17,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":17},"description":"Als Senior Back-end Developer bouw je robuuste, schaalbare back-end oplossingen voor platforms in de energiemarkt. Je werkt aan CRM, configurator, klantenportaal en mobiele apps met Laravel en PHP, gekoppeld aan Angular en Ionic interfaces. Onze systemen draaien al in meerdere landen, dus je code moet betrouwbaar, veilig en toekomstbestendig zijn. Je levert nieuwe features, zet integraties op, onderhoudt CI/CD-pipelines en automatiseert tests. Je werkt in Groningen in een compact team dat snel schakelt en veel ownership geeft. Beschikbaarheid vanaf 32 uur per week is gewenst; zowel fulltime als parttime opties zijn bespreekbaar. Ben je praktisch, technisch en resultaatgericht? Dan kun je hier echt impact maken.\n Functie-inhoud\n Je ontwikkelt en implementeert back-end features voor CRM, installateurs- en klantportaal met Laravel en PHP.\nJe bouwt en onderhoudt koppelingen tussen systemen, API's en externe services zodat data betrouwbaar en schaalbaar stroomt.\nJe zet CI/CD-pipelines op en onderhoudt integratietests in GitLab voor stabiele, reproduceerbare deployments.\nJe optimaliseert performance, schrijft geautomatiseerde tests en verhelpt productie- en functionele storingen snel.\n Functie-eisen\n Minimaal vijf jaar ervaring als back-end developer en beschikbaar voor minimaal 32 uur per week.\nAantoonbare ervaring met Laravel en PHP; kennis van Angular en mobiele stacks (Ionic) is een plus.\nErvaring met versiebeheer en CI/CD (bij voorkeur GitLab), inclusief testautomatisering en aandacht voor codekwaliteit.\nJe werkt zelfstandig en in teamverband, bent proactief, oplossingsgericht en neemt verantwoordelijkheid voor je code.\n Wij bieden\n Bruto maandsalaris tussen €4.250 en €5.250 bij een 40-urige werkweek, afhankelijk van kennis en ervaring.\n25 vakantiedagen op fulltime basis met de mogelijkheid om vijf extra dagen bij te kopen.\nPensioenregeling bij A.S.R., 8% vakantiegeld en reiskostenvergoeding van €0,23 per kilometer vanaf 10 km.\nFlexibele werkuren, tijd voor vrijwilligerswerk tijdens werk en een betrokken, wendbaar developmentteam met veel ownership.\nSalarisomschrijving€4250 - €5250 monthly\n Dienstverband: Vaardigheden\n\n Er is geen minimale opleiding vereist\n\n Je beheerst Nederlands\n\n Wat wij bieden\n Salaris: \n € 4.250,- tot € 5.250,-","description_format":"text","description_chars":2272,"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"],"lifecycle":[{"event":"open","at":"2026-10-14T16:17:15Z"}],"visa":[],"liveness":{"score":46,"band":"ok","label":"Likely open","p_open":0.85,"p_active":0.729,"p_room":0.75,"age_days":16,"expected_fill_days":19,"reasons":["seen:16","velocity","win:late","comp:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":70068,"is_top_pay":false},"html_url":"https://alion.io/job/synsel-techniek-senior-back-end-developer","json_url":"https://alion.io/job/synsel-techniek-senior-back-end-developer.json","meta":{"generated_at":"2026-10-17T18:51:33Z","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":1889,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":4376709},"rest":"https://alion.io/mcp/rest/get_company?id=4376709"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsynsel-techniek-senior-back-end-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%2Fsynsel-techniek-senior-back-end-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%2Fsynsel-techniek-senior-back-end-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/synsel-techniek-senior-back-end-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsynsel-techniek-senior-back-end-developer"}]}