{"id":2456977,"url":"https://alion.io/job/voop-full-stack-engineer-uk","title":"Full Stack Engineer, UK","company":{"id":4420431,"name":"Voop","domain":"voop.com","url":"https://alion.io/company/voop-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Rippling","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-14T06:34:16Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":74000,"max_usd":186000,"period":"year","method":"role_country_seniority_unknown","sample_n":359},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Clean Architecture","optional":false},{"name":"Docker","optional":false},{"name":"Kotlin Multiplatform","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Pulumi","optional":false},{"name":"React Native","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true},{"name":"Kotlin","optional":true},{"name":"React.js","optional":true},{"name":"Twilio","optional":true}],"status":"live","first_seen_at":"2026-06-19T10:29:52Z","employer_posted_date":"2026-06-19","last_verified_at":"2026-10-14T13:15:12Z","board_verified":true,"closed_at":null,"days_open":117,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":116},"description":"Voop is building the global child-safe phone network - protecting millions of children and adults from digital harm.\nAbout Voop\nAwareness has never been higher about the damage smartphones can do to young people, yet almost no one is fixing it.\nVoop is building the world’s first safe mobile platform - a new kind of network that replaces traditional telcos and installs intelligent protection on any smartphone.\nBy combining network-level controls, device-integrated safeguarding software, and AI-powered risk detection, Voop gives parents, carers, schools, and governments the ability to protect without over-restricting - all on the devices that children and adults already use and love.\nOur first product, Voop for Care, is live with leading care providers, protecting thousands of vulnerable children in the UK. Next, we’re expanding into consumer markets to make digital safety the default, not the exception.\nBacked by leading global investors and built by a world-class team of engineers, designers, and safeguarding experts, Voop is tackling one of the defining challenges of our time: creating a safer digital future at massive scale.\nWhy Voop\nMission that matters: Build technology that directly protects children and saves lives.\nMassive opportunity: A $50B+ global market for safe connectivity, with active customers and real revenue.\nWorld-class team: Alumni from Google, Accenture, Vodafone, Barnardo’s, and law enforcement.\nMomentum: Thousands of users onboarding, millions more in the pipeline.\nTop-tier backing: Supported by global funds committed to fixing smartphones for good.\n The Opportunity\nAs a Fullstack Engineer at Voop, you’ll play a pivotal role in developing and scaling our platform across web and mobile. You’ll work closely with Nick Pasha-Gubbins (Co-Founder & CTO) on:\nArchitectural decisions for the core Voop platform.\nFeature development across Voop for Care, Voop for Schools, and Voop for Parents.\nFrontend build-out of modern web applications and mobile apps for iOS and Android using React and Kotlin Multiplatform.\nDeployment, optimisation, and real-world testing during pilots and large-scale rollouts.\nFrom day one, you’ll contribute to production code, shape product direction, and see the direct impact of your work through user outcomes and safeguarding results.\nThis is a great time to join an early stage company with strong market traction, backing and momentum to go big.\nKey Responsibilities\nDevelop and maintain Voop’s full stack platform, including real-time web apps, mobile apps, and backend services.\nDesign and implement frontend experiences across web and mobile (React / React Native / Kotlin Multiplatform).\nBuild and optimise backend services (Hono, Postgres, AWS, Kamailio) powering the Voop network.\nWork on systems for mobile network management, device control (MDM), and AI-driven safeguarding tools.\nCollaborate with the CTO and engineering team on architecture, scalability, and security.\nShip fast, iterate quickly, and deliver measurable value to real users.\nEngage with end-users to understand their challenges and ensure our technology delivers real-world impact.\nCurrent stack: Typescript, React / React Native, Kotlin Multiplatform, Hono, Postgres, Pulumi/SST, Docker, AWS, Kamailio.\nAbout You\nYou’re pragmatic, fast-moving, and technology-agnostic, focused on solving the right problems well.\nYou have several years of experience as a senior engineer or technical lead building quality products in lean teams.\nYou’re opinionated but collaborative, bringing scars from what hasn’t worked and empathy for working fast with others.\nYou care about the craft: clean architecture, reliability, and great user experience.\nYou take ownership from frontend to backend and DevOps, seeing features through end-to-end.\nYou’re driven by impact: building tech that matters, not just code that works.\nBonus Points\nExperience with voice/SMS platforms (e.g. Twilio, SIP Trunks).\nUnderstanding of mobile network architecture or MDM frameworks.\nStrong knowledge of networking (Layer 3+) or secure communications.\nPassion for online safety, child protection, or social impact tech.","description_format":"text","description_chars":4137,"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":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-13T16:21:26Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.221,"p_room":0.28,"age_days":116,"expected_fill_days":21,"reasons":["conf:2","win:tail","crowd:"],"computed_at":"2026-10-14T06:34:16Z"},"pay":null,"html_url":"https://alion.io/job/voop-full-stack-engineer-uk","json_url":"https://alion.io/job/voop-full-stack-engineer-uk.json","meta":{"generated_at":"2026-10-14T14:29:10Z","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":17848,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":4420431},"rest":"https://alion.io/mcp/rest/get_company?id=4420431"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fvoop-full-stack-engineer-uk"},{"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%2Fvoop-full-stack-engineer-uk"},{"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%2Fvoop-full-stack-engineer-uk"},{"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/voop-full-stack-engineer-uk\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fvoop-full-stack-engineer-uk"}]}