Blockchain Payments 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.

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.