{"id":122654,"url":"https://alion.io/job/worldpay-senior-software-engineer-agentic-commerce-london","title":"Senior Software Engineer – Agentic Commerce - (London)","company":{"id":13762,"name":"Worldpay","domain":"worldpay.com","url":"https://alion.io/company/worldpay","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":87,"open_postings":36,"ghost_share":0,"stale_share":0.694,"repost_share":0.056,"time_to_fill_p50_days":21,"computed_at":"2026-10-23T05:54:15Z"}},"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":77000,"max_usd":151000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":130},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"GCP","optional":false},{"name":"Java","optional":false},{"name":"Tokenization","optional":false},{"name":"A2A","optional":true},{"name":"Function Calling","optional":true},{"name":"GitHub","optional":true},{"name":"JavaScript","optional":true},{"name":"LLM","optional":true},{"name":"Model Context Protocol","optional":true},{"name":"Node JS","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-08-25T00:00:00Z","employer_posted_date":"2026-08-25","last_verified_at":"2026-10-22T00:17:10Z","board_verified":true,"closed_at":null,"days_open":59,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":59},"description":"Ready to take your career global?\nMake your mark at one of the biggest names in payments. We’re looking for a Senior Software Engineer - Agentic Commerce to join our ever-evolving agentic commerce engineering team and help shape the future of global commerce.\nWhat you’ll own\nWe are building the future of autonomous commerce. As AI agents begin to discover products, compare options, build carts, and initiate purchases on behalf of consumers, the payments layer needs new infrastructure for trust, identity, user intent, authentication, tokenization, fraud signals, and real-time transaction visibility.\nAs a Senior Software Engineer, Agentic Commerce, you will join a greenfield engineering squad building secure, reliable backend services that allow AI agents, merchants, payment platforms, and risk systems to work together in real time.\nAI Agent Integrations\nDesign and build secure checkout and payment APIs that AI agents can invoke reliably and deterministically, including support for concepts such as UCP, ACP, AP2, agentic tokens, delegated credentials, verifiable intent, and MPP.\n\nImplement flows that capture and validate agent context, user intent, delegated authority, payment credentials, risk signals, transaction evidence, and downstream reporting data.\n\nIntegrate agentic commerce capabilities with global payment platforms, gateways, checkout, tokenization, authentication, fraud, reporting, and merchant-facing systems.\n\nAPI & SDK Development\nBuild merchant-facing APIs, SDKs, documentation, sample flows, sandbox experiences, and developer tools that make agentic commerce easier to adopt.\n\nDesign for clear contracts, predictable errors, strong validation, fast testing, and measurable time-to-first-transaction.\n\nUse feedback from internal teams, external developers, pilots, and partner integrations to improve the platform quickly.\n\nBackend Engineering\nBuild Java-based backend services that support real-time, high-trust payment workflows with strong performance, observability, security, and operational discipline.\n\nOwn features from design through implementation, testing, deployment, monitoring, and iteration.\n\nContribute to design reviews, code reviews, service documentation, production readiness, and a culture of high-quality engineering.\n\nWhat you’ll bring\n5+ years of software engineering experience, including building and operating production services, APIs, distributed systems, or transaction-processing applications.\n\nExperience building and operating cloud-based systems on AWS, Google Cloud Platform, or comparable public cloud environments, with strong fundamentals in deployment, monitoring, reliability, and secure service design.\n\nPractical interest in AI agents and agentic workflows, including how agents call APIs, pass structured data, operate within delegated permissions, and require validation before triggering real-world actions.\n\nStrong software engineering fundamentals across API design, testing, CI/CD, observability, secure coding, resilience, maintainability, and production support.\n\nAbility to collaborate across product, architecture, security, fraud, checkout, tokenization, gateway, and platform teams to deliver cross-system capabilities in a fast-moving, emerging product area.\n\nIt’s a bonus if you have\nExperience in payments, fintech, commerce, gateways, card-not-present processing, checkout, tokenization, 3DS/SCA, fraud/risk, disputes, merchant reporting, or other high-trust transaction systems.\n\nExperience building or integrating with AI-powered applications, agent frameworks, LLM tool-calling patterns, MCP-style integrations, A2A-style workflows, structured automation systems, or safe AI execution patterns such as validation, policy checks, audit logs, fallback paths, and protection against prompt injection or tool misuse.\n\nHands-on experience with Node.js, TypeScript, SDKs, developer tooling, sandbox environments, sample apps, merchant-facing APIs, GitHub projects, open-source tools, standards discussions, AI engineering communities, or technical forums.\n\nAbout the team\nOur inclusive and global teams win together every day. We’re proud to have the best minds in the industry, who you can learn from as you grow your career. The people, the energy, the connections\n- it’s unmatched. Come and be part of an ever-evolving company and get dynamic opportunities that go beyond borders.\nWhat makes a Globalpayer?\nGlobalpayers think like a client, act like an owner and win as one team. We’re curious and innovative - always finding better ways to deliver impact. We empower each other to make decisions, and it’s our passion that drives excellence in everything we set out to do.\nDoes this sound like you? Then you sound like a Globalpayer. Apply now to take your career global.","description_format":"text","description_chars":4767,"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":["Commerce","Payment Processing & Gateways"],"lifecycle":[{"event":"open","at":"2026-08-25T00:00:00Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Skilled Worker, Senior or Specialist Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker; Global Business Mobility: Senior or Specialist Worker","cap_exempt":false,"checked_at":"2026-10-23T06:21:00+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":1,"p_active":0.4,"p_room":0.28,"age_days":59,"expected_fill_days":21,"reasons":["conf:29","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-23T05:54:15Z"},"pay":null,"html_url":"https://alion.io/job/worldpay-senior-software-engineer-agentic-commerce-london","json_url":"https://alion.io/job/worldpay-senior-software-engineer-agentic-commerce-london.json","meta":{"generated_at":"2026-10-23T11:43:12Z","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":17722,"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":13762},"rest":"https://alion.io/mcp/rest/get_company?id=13762"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fworldpay-senior-software-engineer-agentic-commerce-london"},{"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%2Fworldpay-senior-software-engineer-agentic-commerce-london"},{"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%2Fworldpay-senior-software-engineer-agentic-commerce-london"},{"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/worldpay-senior-software-engineer-agentic-commerce-london\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fworldpay-senior-software-engineer-agentic-commerce-london"}]}