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Blockchain Payments Engineer
TechChain Talent
- London, England, United Kingdom
- London, England, United Kingdom
Über
speed, ownership, and high talent density , and we build critical infrastructure used at global scale. As a Blockchain Payments Engineer, you will act as a core architect and owner of mission‑critical financial systems. You'll design and scale the infrastructure that powers seamless
fiat crypto flows , real‑time risk decisions, and highly reliable financial records. This is a hands‑on, high‑impact role at the centre of payments, compliance, and blockchain operations. Who You Are
You are a backend and payments‑focused engineer with a passion for high‑throughput, low‑latency distributed systems, fintech infrastructure, and blockchain‑based financial products. You thrive in ambiguous environments and take full ownership of complex systems. Essential Qualifications
Fiat Onramp Expertise:
Proven experience building fiat onramps end to end. Systems Design & Scale:
Deep experience designing and operating high‑scale payments, fintech, or risk platforms. Programming Languages:
Fluency in Rust or Go, or strong systems experience in TypeScript/Node or Python. Databases:
Expert‑level Postgres knowledge (transactions, indexing, locking), with experience using Redis and event/analytics stores (e.g., Kafka/Redpanda, ClickHouse). API Design:
Strong command of REST/gRPC best practices, including auth, versioning, pagination, idempotency, and webhook consumers. Event‑Driven Architecture:
Experience with queues, outbox/inbox patterns, sagas, and exactly‑once‑effective processing. Security Mindset:
Hands‑on experience with key management, HSM/KMS, secrets hygiene, least‑privilege access, and auditability. Ownership & Ambiguity:
Comfortable moving fast, making decisions, measuring outcomes, and iterating in high‑ambiguity environments. Nice to Have
Payments experience: ACH/NACHA returns, 3DS/SCA, AVS/CVV, BIN analysis, chargebacks, mobile wallets. Open banking integrations and bank transfer initiation. Fraud and risk tooling: rule engines, device fingerprinting, feature stores, dispute workflows. Compliance tooling: sanctions and PEP screening, Travel Rule networks, SAR/STR workflows. Crypto operations: wallet infrastructure, stablecoin flows, blockchain analytics integrations. Accounting systems: double‑entry ledgers, reconciliation pipelines, and regulatory/tax reporting data models. Infrastructure: Cloud platforms, infrastructure‑as‑code, containers/orchestration, CI/CD, observability tooling. For more information please contact Joseph@techchaintalent.xyz
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Sprachkenntnisse
- English
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