{"id":1371270,"url":"https://alion.io/job/wise-senior-software-engineer-ii-payin-platform-backend-java-2","title":"Senior Software Engineer II - Payin Platform - Backend (Java)","company":{"id":3856,"name":"Wise","domain":"wise.com","url":"https://alion.io/company/wise","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":80,"open_postings":34,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":21,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","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":{"min":111000,"max":145000,"currency":"GBP","period":"year","gross":null,"usd_annual":192181},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Java","optional":false},{"name":"Kotlin","optional":false},{"name":"Python","optional":false},{"name":"Spring Framework","optional":false}],"status":"closed","first_seen_at":"2026-07-15T10:58:42Z","employer_posted_date":"2026-07-15","last_verified_at":"2026-09-29T07:11:17Z","board_verified":false,"closed_at":"2026-09-29T07:11:17Z","days_open":75,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":75},"description":"Company Description\nWise is a global technology company, building the best way to move and manage the world’s money.\nMin fees. Max ease. Full speed.\nWhether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money.\nAs part of our team, you will be helping us create an entirely new network for the world's money.\nFor everyone, everywhere.\nMore about our mission and what we offer.\nJob Description\nAbout the role:\nWe are looking for a talented Senior Software Engineer to join our Payin Platform team in the London office. This team owns layer that powers how money enters Wise. The platform sits between our product teams (Transfer, Acquiring Payment, and any new product that needs to take money in) and the payment methods we support (Cards, Apple Pay, Google Pay, Balance, Bank Transfer, PISP, UPI, Direct Debit, and more).\nWhat will you be working on?\nRather than owning a single payment method, we build the Payin Session and Payment abstractions that let every product integrate a payment method once and scale to millions of transactions without re-solving the same problems.\nThis is a high-volume, high-leverage platform role: the systems you build are used by many teams across the company, so correctness, reliability, and thoughtful API design matter enormously.\nQualifications\nWhat do you need?:\n5+ years of experience in Java, Kotlin, Python or Go\n\nStrong experience with Spring framework, relational databases, distributed and concurrent systems (Kafka)\n\nGreat cross-team communication - Can discuss and champion complex, technical topics with a wide and varied audience, from fellow engineers to non-technical stakeholders across lots of teams.\n\nYou enjoy writing testable code and you have experience in testing strategies, such as unit testing, integration testing\n\nYou believe in and follow best coding practices, code reviews and open feedback\n\nYou have great communication skills and the ability to articulate complex, technical concepts to non-technical audience\n\nYou strive to improve our team culture and processes\n\nA strong product mindset and passion for customer experience, you prioritise work with the customers in mind and make data-driven decisions to fix customer pain-points\n\nBeing able to work independently on customer problems is a key to success - you take responsibility and end-to-end ownership of your projects: drive and own them to make sure we hit the goals we want to achieve\n\nAdditional Information\nInterested? Find out more:\nHow we work - a practical guide\n\nDEI @ Wise\n\nWise Tech Stack (2025 update)\n\nSee what it's like to work at Wise London!\n\nOur Engineering career map\n\nWise Engineering -https://medium.com/wise-engineering\n\nWhat do we offer:\nStarting salary: 111K - 145K GBP + RSUs\n\nWise Benefits\n\n#LI-AB3 #LI-Hybrid\nFor everyone, everywhere. We're people building money without borders - without judgement or prejudice, too. We believe teams are strongest when they are diverse, equitable and inclusive.\nWe're proud to have a truly international team, and we celebrate our differences.\nInclusive teams help us live our values and make sure every Wiser feels respected, empowered to contribute towards our mission and able to progress in their careers.\nIf you want to find out more about what it's like to work at Wise visit Wise.Jobs.\nKeep up to date with life at Wise by following us on LinkedIn and Instagram.","description_format":"text","description_chars":3497,"description_truncated":false,"requirements":{"experience_years_min":5,"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":"2026-09-28T04:06:09Z"}],"visa":[],"liveness":null,"pay":{"stated_usd_annual":192181,"is_top_pay":true},"html_url":"https://alion.io/job/wise-senior-software-engineer-ii-payin-platform-backend-java-2","json_url":"https://alion.io/job/wise-senior-software-engineer-ii-payin-platform-backend-java-2.json","meta":{"generated_at":"2026-10-11T22:01:53Z","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":11437,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-12T00:00:00Z"}},"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":3856},"rest":"https://alion.io/mcp/rest/get_company?id=3856"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwise-senior-software-engineer-ii-payin-platform-backend-java-2"},{"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%2Fwise-senior-software-engineer-ii-payin-platform-backend-java-2"},{"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%2Fwise-senior-software-engineer-ii-payin-platform-backend-java-2"},{"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/wise-senior-software-engineer-ii-payin-platform-backend-java-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwise-senior-software-engineer-ii-payin-platform-backend-java-2"}]}