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 whats 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. Youll 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.