{"id":596583,"url":"https://alion.io/job/justpark-senior-fullstack-developer-backend-first","title":"Senior Fullstack Developer (Backend First)","company":{"id":4770,"name":"JustPark","domain":"justpark.com","url":"https://alion.io/company/justpark","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","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":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":87000,"max_usd":169000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":139},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Go","optional":false},{"name":"PHP","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-09-10T00:00:00Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-11-02T15:38:25Z","board_verified":true,"closed_at":null,"days_open":53,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":53},"description":"About JustPark\nJustPark is the premier partner offering both B2B solutions for destinations and B2C services for drivers, giving us the best of both worlds. We simplify the entire parking experience. From venues and councils to private driveways, our platform makes it simple for drivers to find, book, and pay for parking-while empowering our operating partners to deliver exceptional parking experiences.\nWe’ve always believed parking should be easier-from end to end. That’s why we, two trailblazing companies-ParkHub and JustPark-have come together to make that vision a reality.\nParkHub revolutionized event parking in the US, optimizing venue operations for a smoother, stress-free experience. JustPark transformed parking in the UK, turning the hunt for a spot into a simple, seamless task.\nNow, as one unified company, we’re combining expertise to offer a full-service, frictionless parking solution for both businesses and consumers.\nAbout the role\nThe Senior Fullstack Developer ships high-impact product features across JustPark’s stack, working closely with product, design and other engineers to deliver value to customers. You’ll design, build and ship features end-to-end across web, mobile or backend as needed, own meaningful pieces of the product surface and the systems that back them, and raise the bar on code quality, testing and engineering hygiene in your team. The role works with engineers in code reviews and design discussions, and partners with product and design to refine scope and surface trade-offs. You’ll contribute to on-call rotations and improve the reliability of what your team owns. Our team is moving quickly with AI adoption and you’ll have the opportunity to learn how to get the most of AI powered tooling.\nRequirements\nResponsibilities\nDesign, build and ship features end-to-end across web, mobile, and backend as needed\nOwn meaningful pieces of the product surface and the systems that back them\nRaise the bar on code quality, testing and engineering hygiene in the team\nMentor more junior engineers through pairing, reviews and design discussions\nPartner with product and design to refine scope and surface trade-offs\nContribute to on-call and improve the reliability of what the team owns\nRequirements\n5+ years of professional software engineering experience\nStrong skills in at least one of our backend languages (PHP, Go) as well as a high level of competency in TypeScript.\nComfortable owning features from idea to production with minimal hand-holding\nSolid grounding in software design, testing and operational excellence\nDemonstrated ability to collaborate with PMs and designers on ambiguous problems\nPragmatic, customer-obsessed and a strong written communicator\nComfortable with AI tooling\nBenefits\nRecharge your batteries\nGenerous holiday policy: 25 days + bank holidays + managers have the ability to grant up to 5 extra days for high performance (total of 38 days a year)\nFree lunch on all office days via Feedr with the option to choose your preferred meal or cuisine everyday\nFree snacks & drinks on all office days\nInvestment in you and your wellbeing\nPrivate Medical Insurance with Vitality\nLife assurance through YuLife\n£25 credit to use for eye tests a year\nFree O2 concert tickets through our partnership with the O2\nSimplifying journeys so you can breathe easier\n£50 parking credit per month to use via JustPark\nCycle-to-work salary sacrifice scheme\nEV salary sacrifice car scheme via Octopus Energy\nWe look out for your family\nEnhanced parental leave with 6-months enhanced maternity leave and 4 weeks of fully-paid paternity leave\nHelp finding great childcare, with funded hours via Koru Kids\nLook after the pennies\nCompetitive pension offering with standard and salary sacrifice pension options\nSuccess is best when it's shared\nQuarterly away days with the whole UK team - we all go off-site each quarter to celebrate our achievements\nQuarterly team social budget to recharge and bond with your team\nLots of social activities and celebrations on our gorgeous rooftop in King’s Cross","description_format":"text","description_chars":4053,"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":["Health insurance","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Marketplaces","Smart Mobility"],"lifecycle":[{"event":"open","at":"2026-09-10T16:09:59Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker","cap_exempt":false,"checked_at":"2026-10-31T06:23:40+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":43,"band":"fade","label":"Fading","p_open":1,"p_active":0.784,"p_room":0.55,"age_days":53,"expected_fill_days":52,"reasons":["conf:3","win:tail"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/justpark-senior-fullstack-developer-backend-first","json_url":"https://alion.io/job/justpark-senior-fullstack-developer-backend-first.json","meta":{"generated_at":"2026-11-02T17:14:55Z","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":23951,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":4770},"rest":"https://alion.io/mcp/rest/get_company?id=4770"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fjustpark-senior-fullstack-developer-backend-first"},{"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%2Fjustpark-senior-fullstack-developer-backend-first"},{"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%2Fjustpark-senior-fullstack-developer-backend-first"},{"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/justpark-senior-fullstack-developer-backend-first\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fjustpark-senior-fullstack-developer-backend-first"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":596583}},{"tool":"search_jobs","arguments":{"company":"justpark.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":596583},"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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