{"id":3413463,"url":"https://alion.io/job/evervault-product-engineer","title":"Product Engineer","company":{"id":39164,"name":"Evervault","domain":"evervault.com","url":"https://alion.io/company/evervault","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","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":86000,"max_usd":166000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":139},"experience_years_min":6,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"PCI DSS","optional":true},{"name":"Rust","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-28T17:19:15Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-11-01T03:44:01Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"About Evervault\nEvervault offers modular payments infrastructure for companies building their own payments stack. We keep raw card data off your systems, cut PCI compliance work, improve acceptance, mitigate fraud and chargebacks and decrease your cost of payments, so you keep full control. Trusted by Ramp, Rippling, Modern Treasury and Overwolf; Series B, led by Ribbit Capital.\nRole Overview\nWe’re hiring a Senior/Staff Product Engineer for our Cards team in London. You’ll own problems end-to-end across our payments infrastructure: tokenisation, card network integrations, 3DS and dispute management. That runs from customer conversations, through API design, to production code and measuring whether it worked. You’ll lead by example: mentoring, raising the bar and owning technical direction, staying hands-on the whole time.\nWhat You’ll Be Doing\nBuilding core payments infrastructure, including tokenisation, network integrations, 3DS and dispute management\n\nDesigning developer-facing APIs, SDKs and primitives that developers enjoy using\n\nBuilding high-throughput, distributed systems that handle millions of card transactions\n\nWorking directly with customers to understand their payment stacks, debug integrations and shape the roadmap\n\nShipping across the stack: backend services, APIs, UI components and documentation\n\nSetting technical direction and mentoring engineers on the team\n\nRequirements\n6+ years of engineering experience, including 2-4+ recent years in at least one of: payments infrastructure or fintech, developer tooling, or design-first products\n\nStrong fundamentals in distributed systems, networking and infrastructure, beyond just frameworks\n\nProduct-minded: you think about the developer experience of every API you design and judge your work by its impact on users\n\nComfortable explaining complex technical decisions to non-technical people and working in front of customers\n\nFounder-like ownership: you take problems to completion without waiting to be told what to do\n\nNice to Have\nRust and TypeScript experience (we care more about engineering ability than our exact stack)\n\nKnowledge of card payments: networks, tokenisation, 3DS or PCI DSS\n\nThis Might Not Be for You If…\nYou want to build from a spec: you’ll be expected to find and define the problem yourself\n\nYou want to manage people soon: this is primarily a Senior IC role with technical leadership rather than people leadership\n\nYou prefer to stay in one layer of the stack: you’ll move between backend, APIs, UI and docs\n\nYou’d rather avoid customers: you’ll be on calls and debugging integrations with them\n\nYou want to work fully remotely: we’re in our Shoreditch office Tuesday to Thursday\n\nCompensation, Benefits & Why Join\nCompetitive, London weighted salary\n\nStock options with an extended exercise window\n\nPrivate health insurance\n\nUnlimited PTO and flexible working hours\n\nDaily lunch budget\n\nSenior technical influence on a small, fast-growing team building infrastructure that processes millions of card transactions\n\nInterview Process\nRecruiter screen\n\nHiring manager screen\n\nTechnical interview\n\nPair programming\n\nSystems design (for Staff-level candidates)\n\nFinal round with our founder\n\nReferences and offer\n\nLocation\nThis role is based in London, in our Shoreditch office Tuesday to Thursday. We do not currently sponsor UK work visas.\nCandidates must be based in the location specified. 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