{"id":2933441,"url":"https://alion.io/job/capital-on-tap-flutter-engineer-platform","title":"Flutter Engineer - Platform","company":{"id":12307,"name":"Capital on Tap","domain":"capitalontap.com","url":"https://alion.io/company/capital-on-tap","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":85,"open_postings":23,"ghost_share":0,"stale_share":0.391,"repost_share":0.043,"time_to_fill_p50_days":65,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Mobile","role_family":"Mobile","seniority":null,"employment_type":null,"work_mode":"hybrid","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":71000,"max_usd":177000,"period":"year","method":"role_country_seniority_unknown","sample_n":29},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Dart","optional":false},{"name":"Flutter","optional":false},{"name":"Kotlin","optional":false},{"name":"Octopus Deploy","optional":false},{"name":"Swift","optional":false},{"name":"Codemagic","optional":true},{"name":"Go_router","optional":true},{"name":"Riverpod","optional":true}],"status":"live","first_seen_at":"2026-10-20T15:12:57Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-10-23T18:55:39Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"We’re Capital on Tap\n Capital on Tap started because small businesses were underserved. Big banks were slow, their products weren't fit for purpose, and small business owners often couldn't access what they needed. We set out to fix that.\nToday we're a financial platform - not just a credit card company. We offer a best-in-class business credit card, SME-focused spend management platform, a savings product that hit £1 billion in funds within its first year, and a growing suite of tools and financial products that make running a small business easier. \n1,000+ employees, £20bn in annual card spend, 200,000+ customers, 17,000+ Trustpilot reviews averaging 4.7 stars, and we're profitable. We’ve done a pretty good job so far, but we’re just getting started! \nThis is a Hybrid role. Work from our London offices 2 days per week\nThe Team\nYou'll join one of our platform teams. They build the foundations that every web and mobile app at Capital on Tap sits on: the design system and shared UI packages, the app shell, and core flows such as sign-in, settings and protected actions. Product teams build their features on top of this, so we set the patterns, prove they work, and help other teams adopt them.\nRight now the focus is the Customer Portal, the signed-in experience our customers use every day. We work very closely with Design, talk to Product early about what's coming, and partner with the Engineering Architecture Team on where our apps are heading. We also run a monthly demo for the whole department to share what we've built.\nThe Role\nThis role is for an engineer who wants to make mobile development the focus of their career. You might be a web or backend engineer who has dabbled in Flutter, someone with a bit of native iOS or Android experience, or someone who has built an app or two in their own time. You don't need to be an expert yet. What matters is real interest in mobile and the drive to get good at it.\nYou'll join a team of experienced mobile and web engineers and learn the craft on apps our customers use every day. You'll pair with seniors, have your code reviewed by people who care about it, and over time take full ownership of features in packages that the rest of the department builds on. You'll also learn the parts of mobile that are hard to pick up alone, like native integration, accessibility and getting releases through both app stores.\nWhat You'll Be Doing\nBuild and maintain features, widgets and shared packages in Flutter, with support from senior engineers\nWork with Design to bring our design system to life in our iOS and Android apps\nWrite unit, widget and visual regression tests for the work you ship, with a focus on accessibility\nLearn our release process for the App Store and Google Play, and help get releases out of the door\nPick up bugs and production issues, and learn how our apps behave on real devices\nTake part in refinement and planning, and give technical input on the work you're picking up\nTry out AI tools in your day-to-day work and share what helps with the team\nHow We'll Support You\nA senior engineer to pair with and learn from as you get going\nThorough code reviews focused on helping you improve, not just approving the change\nTime to learn the stack properly, including the parts that are new to you\nA clear picture of what good looks like at your level, and regular conversations about your progress towards Senior\nWhat We're Looking For\nSome hands-on experience with Flutter and Dart, or with native mobile in Kotlin or Swift, whether at work, on a side project or through self-study\nSolid engineering fundamentals from your current role, in any stack\nA genuine interest in mobile development and in building apps people enjoy using\nGood testing habits, or a willingness to build them\nExperience working in an Agile team\nCuriosity and a willingness to ask questions while you learn something new\nA proactive, supportive and collaborative way of working\nA fit with our values: Be A Buddy, Why Not Today, Just Pilot\nOur Tech Stack\nMobile: Flutter, Dart, Kotlin, Swift\nRiverpod, GoRouter, CodeMagic]\nDiversity & Inclusion\nWe welcome, consider and encourage applications from anyone who shares our commitment to inclusivity. Join us in creating a space where authenticity thrives, and everyone can do their best work.\nGreat Work Deserves Great Perks\nWe try not to take ourselves too seriously (all the time) so we make sure our office is decked out with a pool table, arcade machine, beer tap, and a couple of office dogs thrown in for good measure. Check out our benefits:\nPrivate Healthcare including dental and opticians services through Vitality\nWorldwide travel insurance through Vitality\nAnniversary Rewards (£250, £500, £750, 4-week fully paid sabbatical)\nSalary Sacrifice Pension Scheme up to 7% match\nOctopus EV Salary Sacrifice Scheme\n28 days holiday (plus bank holidays)\nAnnual Learning and Wellbeing Budget\nEnhanced Parental Leave\nCycle to Work Scheme\nSeason Ticket Loan\n6 free therapy sessions per year\nDog Friendly Offices\nFree drinks and snacks in our offices\nOther Info\n Check out our ‘Top Tips’ for interviewing.\nKeep updated on new job opportunities by following us on Linkedin.\nEmail  if you have any questions.\nExcited to work here? Apply!\n If you’d like to progress your career within our fast growing, profitable fintech then click apply and we will aim to get back to you within 3 working days (during busy periods this could take up to 5 working days.)","description_format":"text","description_chars":5485,"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":["Parental leave","Pet friendly"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cards & Card Issuing","Business & SME Lending","Procurement & Spend Management"],"lifecycle":[{"event":"open","at":"2026-10-20T15:23:20Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":65,"reasons":["conf:1","velocity","win:early"],"computed_at":"2026-10-23T05:54:15Z"},"pay":null,"html_url":"https://alion.io/job/capital-on-tap-flutter-engineer-platform","json_url":"https://alion.io/job/capital-on-tap-flutter-engineer-platform.json","meta":{"generated_at":"2026-10-23T20:43:42Z","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":2456,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"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":12307},"rest":"https://alion.io/mcp/rest/get_company?id=12307"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcapital-on-tap-flutter-engineer-platform"},{"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%2Fcapital-on-tap-flutter-engineer-platform"},{"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%2Fcapital-on-tap-flutter-engineer-platform"},{"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/capital-on-tap-flutter-engineer-platform\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcapital-on-tap-flutter-engineer-platform"}]}