Tech Lead (Backend): Fraud

About us: We believe the next generation of financial services will be powered by stablecoins. Founded in 2021, our mission at BVNK is to accelerate global money movement. We’re building stablecoin-native infrastructure so businesses can move value instantly across borders and networks. With global licenses and T1 bank partnerships, we facilitate billions in transactions for enterprise clients like Worldpay, Deel, LianLian Global, and Rapyd. Our technology is transforming how businesses operate globally by eliminating payment delays, reducing costs, and unlocking trapped capital. We’re a diverse team spread across EMEA, North America, and APAC, with a shared belief that stablecoins are the new infrastructure layer for financial services, and that BVNK is at the forefront of this shift. In 2025, we secured strategic investment from Visa, following our $50 million Series B with Haun Ventures, Coinbase Ventures, Scribble Ventures, DRW Venture Capital, Avenir, and Tiger Global. With the backing of these leading investors, we’re accelerating our growth – and we're looking for smart, ambitious people to help us build the future of financial services. We're incredibly honored to have made Newsweek's list of The Top 100 Global Most Loved Workplaces three years running (most recently in 2025) and to have been recognised by LinkedIn as one of the Top 20 Startups in the UK in 2024. Location: We offer a Hybrid/Remote working policy. About this role in the team: We're looking for a Tech Lead to own the technical direction, architecture, and engineering delivery of the Fraud subdomain within BVNK's FinCrime domain. At BVNK, the Tech Lead is a technical guardian, hands-on in the codebase, accountable for the squad's technical health. You'll own the technical side (architecture, code quality, practices, risk). Your leverage comes from multiplying the team's capability building independent decision-making across the squad, not becoming the sole bottleneck. The FinCrime domain protects the integrity of BVNK's platform, customers, and partners by preventing, detecting, and responding to financial crime risk across all products and geographies. It provides a consistent, policy-driven decision layer for risk across onboarding, transactions, and ongoing customer lifecycle events, screening providers, transaction monitoring, and fraud controls. Within this domain, the Fraud subdomain is responsible for building the detection, prevention, and response capabilities that protect BVNK from account takeovers, payment fraud, APP (Authorised Push Payment) fraud, card fraud, scams, and abuse across both fiat and crypto rails. This is a greenfield technical leadership opportunity at a critical moment. BVNK is building a comprehensive, data-driven fraud detection and prevention framework that can scale with the company's rapid growth into new products and new markets.. You'll define the technical architecture, lead the integration of Unit21 as BVNK's fraud engine, and build the engineering practices and standards that turn fraud prevention from a gap into a competitive advantage. Key Areas of Responsibilities: Technical ownership & architecture Define and own the fraud engineering architecture — Design the end-to-end technical vision for fraud detection, prevention, and response at BVNK: real-time fraud decision services, event enrichment pipelines, device and behavioural signal collection, fraud engine integration, and case management connectors. Team growth & engineering culture Build and mentor the fraud engineering squad — Tailor work assignments to individual growth, run group knowledge-sharing sessions, give regular and specific feedback. Set and maintain engineering standards — Establish coding standards, review practices, testing strategy, and observability standards Track and reduce technical debt proactively — Keep tech debt visible and balanced against delivery every planning cycle. Promote healthy engineering culture — Foster collaboration, contin