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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Blockchain Payments Lead Engineer - **Company:** Startup Talents - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Databases, Distributed Systems, Online Banking, Fault Tolerance, Python (Programming Language), Key Management, PostgreSQL, Online Analytical Processing, Node.Js, Role-Based Access Control, Redis, Blockchain, Software Deployment, Systems Integration, TypeScript, Management of Software Versions, Headsets, Indexer, Backend, Event Driven Architecture, Stripe, Apache Kafka, Vertica, Terraform, Pagination, Programming Languages, Google Pay - **Published:** August 26, 2026 - **Apply:** https://www.collegerecruiter.com/job/2815196448-blockchain-payments-lead-engineer ## About the Role You are a backend and onramp specialist with a passion for high-throughput, low-latency distributed systems and financial technology., * System Design & Scale: Deep experience in high-throughput, low-latency distributed systems, payments, or fintech risk platforms. * Language Fluency: Fluent in one or more systems languages (Rust, Go), or strong systems chops in TypeScript/Node/Python. * Database Mastery: Expert-level knowledge of Postgres (transactions, indexing, locking), with familiarity in Redis and event/OLAP stores (Kafka/Redpanda, ClickHouse). * API Craftsmanship: Mastery of gRPC/REST best practices, including versioning, pagination, authN/Z, idempotency keys, and building rock-solid webhook consumers. * Event-Driven Design: Experience designing systems with queues, outbox/inbox patterns, Sagas, and ensuring exactly-once-effective behavior. * Security Mindset: Practical experience with key management basics, HSM/KMS usage, secrets hygiene, least privilege, data minimization, and auditability. * Ownership & Ambiguity: Ownership-driven and comfortable operating in high-ambiguity environments-you move quickly, measure results, and iterate. ## Description London, United Kingdom | Posted on 15/02/2026 The employer is a cryptocurrency launchpad for the Solana blockchain that enables users to create tokens and trade them immediately on the platform, as well as to launch them onto decentralized exchanges. With over 6 million meme coins launched on the platform, it is one of the fastest-growing crypto applications and one of the biggest drivers of the explosive growth in memecoins on the planet. They are hiring a Lead Blockchain Payments Engineer - Fiat Ramps in London (on-site/in person). Missions As the Lead Blockchain Payments Engineer, you will be a core architect and owner of the essential financial infrastructure. You will design and scale the core services that power seamless fiat * crypto flows, real-time risk decisions, and rock-solid financial records. Payment Orchestration & Integrations * Own the end-to-end payment orchestration for major bank rails (ACH/RTP/FedNow/SEPA/Open Banking) and cards (including Apple Pay/Google Pay). * Design and implement idempotent, fault-tolerant APIs and robust webhook processing systems. * Integrate and manage third-party providers for connectivity (Plaid/TrueLayer/Tink), card processing (Stripe/Checkout.com/Adyen), and on-chain risk/compliance (Chainalysis/TRM, Travel Rule networks). * Build and scale a real-time risk engine ( 300 ms) combining ML scores, rules, device signals, sanctions/KYC hits, payment intelligence, and blockchain analytics to yield fast GREEN/AMBER/RED outcomes. * Implement foundational KYC/AML primitives (CIP/CDD, sanctions/PEP screening, Travel Rule data plumbing) in close partnership with our Compliance team, ensuring audit-ready decision journaling. Financial Integrity & Reconciliation * Ship a double-entry ledger and automated reconciliation jobs that accurately tie together processors, bank statements, and on-chain balances. * Develop daily break detection and automated remediation workflows to maintain financial integrity. Blockchain & Wallet Operations * Ensure safe and rapid crypto delivery (e.g., USDC/SOL) to user wallets by managing hot-wallet flows, transaction creation, confirmations, and operational safeguards. Reliability & Instrumentation * Set the bar for reliability: implement SLOs, circuit breakers, retries/backoffs, dead-letter queues, shadow traffic, and canary releases for all high-risk financial flows. * Instrument everything with traces, metrics, and logs. Build internal ops & compliance dashboards and participate in the production on-call rotation for our 24/7 system. Cross-Functional Collaboration * Work closely with Product, Mobile, Compliance, Risk, and Finance teams, driving features from initial concept through production deployment and iteration. Stack Languages: Rust, Go, TypeScript/Node, Python Messaging: Kafka/Redpanda, NATS API/IPC: gRPC/REST Infra: AWS (EKS, RDS, KMS), Terraform Requirements You are a backend and onramp specialist with a passion for high-throughput, low-latency distributed systems and financial technology. Essential Qualifications * System Design & Scale: Deep experience in high-throughput, low-latency distributed systems, payments, or fintech risk platforms. * Language Fluency: Fluent in one or more systems languages (Rust, Go), or strong systems chops in TypeScript/Node/Python. * Database Mastery: Expert-level knowledge of Postgres (transactions, indexing, locking), with familiarity in Redis and event/OLAP stores (Kafka/Redpanda, ClickHouse). * API Craftsmanship: Mastery of gRPC/REST best practices, including versioning, pagination, authN/Z, idempotency keys, and building rock-solid webhook consumers. * Event-Driven Design: Experience designing systems with queues, outbox/inbox patterns, Sagas, and ensuring exactly-once-effective behavior. * Security Mindset: Practical experience with key management basics, HSM/KMS usage, secrets hygiene, least privilege, data minimization, and auditability. * Ownership & Ambiguity: Ownership-driven and comfortable operating in high-ambiguity environments-you move quickly, measure results, and iterate. Nice to Have (Signal Boosters) * Open banking: Plaid/TrueLayer/Tink; account auth and bank-transfer initiation. * Compliance plumbing: sanctions/PEP screening, Travel Rule networks, SAR/STR workflow integration. * Crypto delivery: Solana RPCs, USDC flows, wallet ops, Chainalysis/TRM integrations. * Accounting: double-entry ledgers, reconciliation jobs, and data modeling for regulatory/tax reporting (e.g.,1099-DA/DAC8). * Contract: Permanent role (on-site/in-person) in London (UK). * Work essentials: MacBook Pro, iPhone, AirPods, screens, headsets, and cables are provided on Day 1. * Training and coursework in Crypto, Blockchain, Security, coding languages and other topics are paid for on-demand to encourage personal and professional growth. * Events: fully funded attendance at fintech, blockchain, or related conferences. * Teams retreats/meetups/seminars/conferences all around the world to get to meet in-person and foster meaningful connections. * Benefits: healthcare and life insurance, retirement plan, sponsored transportation, gym, lunch card, home office equipment, and other perks. ## Related Videos - [Navigating Growth, Scaling Challenges, and Office Expansions with David Singleton, CTO at Stripe](https://www.wearedevelopers.com/videos/100362-navigating-growth-scaling-challenges-and-office-expansions-with-david-singleton-cto-at-stripe) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search) - [Throwing off the burdens of scale in engineering](https://www.wearedevelopers.com/videos/608-throwing-off-the-burdens-of-scale-in-engineering) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) ## Related Articles - [From Hype to Code: Real Blockchain Use Cases for Developers](https://www.wearedevelopers.com/magazine/620-from-hype-to-code-real-blockchain-use-cases-for-developers) - [Why Blockchain? 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