{"id":52584,"url":"https://alion.io/job/capital-on-tap-full-stack-software-engineer","title":"Full Stack Software Engineer","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":87,"open_postings":22,"ghost_share":0,"stale_share":0.5,"repost_share":0.045,"time_to_fill_p50_days":56,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Porto, Portugal"],"countries":["PT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":30000,"max_usd":70000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":18},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Agile","optional":false},{"name":"C#","optional":false},{"name":"JavaScript","optional":false},{"name":"React.js","optional":false},{"name":"SQL","optional":false},{"name":"Azure","optional":true},{"name":"Dart","optional":true},{"name":"Flutter","optional":true},{"name":"GCP","optional":true}],"status":"live","first_seen_at":"2026-01-14T21:05:03Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-10-27T00:15:07Z","board_verified":true,"closed_at":null,"days_open":285,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":284},"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, our engineering teams work from our Matosinhos office Office 2 days per week.\nSalary: €40,000-55,000\nThis is a multiple-headcount role, so please don't be put off if you've seen it advertised for a while.\nWhat You’ll Be Doing\nWe’re looking for Full stack Engineers to help us build the best credit card and payment products for small businesses. If you’re looking for an environment where you’re given the freedom to make empowered decisions, research new technologies, and learn/share knowledge with your peers. Then keep on reading!\nYou’ll build robust and scalable solutions using .Net technology\nFrom the first line of code to production, monitoring, and continuous improvement - you’ll own the SDLC\nYou’ll craft slick, responsive user interfaces with modern JavaScript frameworks (React), making sure our products don’t just work, they feel great to use\nTeamwork makes the dream work - you’ll partner with Product Managers, QA’s, and fellow Software Engineers\nYou’ll build bulletproof unit and integration tests to keep our software sharp and our users happy\nBugs happen. When they do, you’ll be ready to troubleshoot and tweak as needed\nYou’ll bridge the gap between tech speak and business goals, ensuring everyone’s on the same page and moving forward together\nWe’re Looking For\n Required skills:\nA minimum of 3+ years hands-on experience in C#, .Net Core, SQL Server, ideally JavaScript and React also!\nGood testing practices, in both Unit and Integration testing\nGood understanding of database technologies\nExperience in using Agile development practices\nA passion for learning new skills and technologies\nA proactive, supportive, and collaborative team player\nOur Tech Stack\nBackend: C#, .Net, .Net Core\nFrontend: React, JavaScript\nMobile: Flutter, Dart\nDatabases: SQL Server, MongoDB\nCloud: Azure & GCP\nInterview Process\nFirst stage: 30-minute intro, CV review, and values with a Talent Partner\nSecond stage: 45-minute “Tech Chat” with a Team Manager\nFinal stage: 90-minute Code Pairing + 30-minute Values Interview\nDiversity & Inclusion\n We 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\nCheck out our benefits:\nPrivate Healthcare through AdvanceCare\nAnniversary Rewards (€280, €570, €860, 4-week fully paid sabbatical)\nPaid Car Parking\n36 days holiday (inclusive of public holidays with public holidays carried over if they fall on a weekend)\nAnnual Learning and Wellbeing Budget\n6 free therapy sessions per year\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":3854,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Portugal","iso":"PT","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cards & Card Issuing","Business & SME Lending","Procurement & Spend Management"],"lifecycle":[{"event":"open","at":"2026-01-14T21:05:03Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.184,"p_room":0.28,"age_days":284,"expected_fill_days":56,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/capital-on-tap-full-stack-software-engineer","json_url":"https://alion.io/job/capital-on-tap-full-stack-software-engineer.json","meta":{"generated_at":"2026-10-27T01:54:30Z","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":1020,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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-full-stack-software-engineer"},{"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-full-stack-software-engineer"},{"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-full-stack-software-engineer"},{"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-full-stack-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcapital-on-tap-full-stack-software-engineer"}]}