—
Position: Backend Engineer (JVM) - Up to £95k Location: Greater London 📍 Hybrid: City of London (3 days per week onsite) Did you know financial fraud costs the UK economy £200bn+ per year, accounting for over 40% of crime in England and Wales? This early-stage Fin Tech is on a mission to fight financial crime and reduce scams in online payments High-ownership, mission-driven, working with sensitive financial data. This is critical infrastructure. When it fails, real people lose money. What You’ll Do • Build the APIs and UIs banks plug into their payment flows • Connect the investigation engine to messy, real-world data (APIs, documents, scraped sources — most of it unstructured) • Design the orchestration layer that gathers and evaluates evidence across heterogeneous systems • Deploy and iterate on LLM-powered investigation flows (not just prototypes) • Make smart build vs buy decisions and own the trade-offs This isn’t a feature factory. You’ll design, build, ship, own. Tech: Kotlin (open to any JVM background), Python, Terraform, Agentic AI, cloud-native, event-driven services If you’ve built fault-tolerant, distributed systems before, tools matter less than judgement You’ll Have • 3+ years building production distributed systems in a startup environment, using backend languages like Java, Kotlin, Scala, Python, C++, Rust or Go • Experience designing external-facing APIs and working with messy, unstructured data • Shipped AI/LLM systems beyond proof-of-concept • Strong instincts on trade-offs, speed vs correctness • Computer Science degree or equivalent Why Join? • Work with a highly talented team of 8 other Engineers • Real equity • High-stakes technical challenges • AI X distributed systems X regulated finance If you want to build fast, reliable AI infrastructure that banks depend on, apply with your CV. #J-18808-Ljbffr
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| Publisher | Direct | Link |
|---|---|---|
| Learn4Good | No | Apply |
| Query | Country | Status | Response ms | Created |
|---|---|---|---|---|
| Backend Engineer; JVM | fallback | 456 | 2026-03-28 10:14 | |
| backend engineer in London, UK | gb | duplicate | 14327 | 2026-03-28 10:04 |
| backend developer in London, UK | gb | processed | 12010 | 2026-03-28 10:04 |
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"job_description": "Position: Backend Engineer (JVM) - Up to £95k\nLocation: Greater London\n\n📍 Hybrid:\nCity of London (3 days per week onsite)\n\nDid you know financial fraud costs the UK economy £200bn+ per year, accounting for over 40% of crime in England and Wales? This early-stage Fin Tech is on a mission to fight financial crime and reduce scams in online payments\n\nHigh-ownership, mission-driven, working with sensitive financial data. This is critical infrastructure. When it fails, real people lose money.\nWhat You’ll Do\n• Build the APIs and UIs banks plug into their payment flows\n• Connect the investigation engine to messy, real-world data (APIs, documents, scraped sources — most of it unstructured)\n• Design the orchestration layer that gathers and evaluates evidence across heterogeneous systems\n• Deploy and iterate on LLM-powered investigation flows (not just prototypes)\n• Make smart build vs buy decisions and own the trade-offs\n\nThis isn’t a feature factory. You’ll design, build, ship, own.\n\nTech:\nKotlin (open to any JVM background), Python, Terraform, Agentic AI, cloud-native, event-driven services\n\nIf you’ve built fault-tolerant, distributed systems before, tools matter less than judgement\nYou’ll Have\n• 3+ years building production distributed systems in a startup environment, using backend languages like Java, Kotlin, Scala, Python, C++, Rust or Go\n• Experience designing external-facing APIs and working with messy, unstructured data\n• Shipped AI/LLM systems beyond proof-of-concept\n• Strong instincts on trade-offs, speed vs correctness\n• Computer Science degree or equivalent\nWhy Join?\n• Work with a highly talented team of 8 other Engineers\n• Real equity\n• High-stakes technical challenges\n• AI X distributed systems X regulated finance\n\nIf you want to build fast, reliable AI infrastructure that banks depend on, apply with your CV.\n#J-18808-Ljbffr",
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