Blockchain Engineer

We are a fast-growing fintech and crypto software company made up of elite builders moving quickly and pushing the boundaries of what's possible. We operate with a strong focus on 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.

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.

• 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 Type Script/Node or Python.
• Databases: Expert‑level Postgres knowledge (transactions, indexing, locking), with experience using Redis and event/analytics stores (e.g., Kafka/Redpanda, Click House).
• 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.

• 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