Job for Experts

Lead Blockchain Payments Engineer - Fiat Ramps

About the Role

You will design, build, and operate core payment and fiat onramp infrastructure. You will own end-to-end payment orchestration, implement idempotent APIs and robust webhook consumers, and integrate third-party providers. You will build a low-latency real-time risk engine and implement KYC/AML primitives with audit-ready journaling. You will ship a double-entry ledger, automated reconciliation workflows, and daily break detection with remediation. You will manage hot-wallet flows and crypto delivery, instrument systems with traces metrics and logs, and participate in the 24/7 production on-call rotation. You will collaborate closely with Product Mobile Compliance Risk and Finance to drive features from concept to production.

Requirements

  • Proven experience building fiat onramps end-to-end
  • Deep experience with high-throughput low-latency distributed systems or payments platforms
  • Fluency in systems languages such as Rust or Go or strong systems experience with TypeScript Node or Python
  • Expert-level knowledge of Postgres including transactions indexing and locking
  • Familiarity with Redis and event/OLAP stores such as Kafka Redpanda and ClickHouse
  • Mastery of gRPC and REST best practices including versioning authN Z and idempotency
  • Experience with event-driven design patterns including queues outbox inbox and Sagas
  • Practical security and key management experience including HSM KMS and secrets hygiene
  • Experience implementing KYC AML sanctions and Travel Rule plumbing
  • Ownership-driven and comfortable working in high-ambiguity environments

Responsibilities

  • Own end-to-end payment orchestration for bank rails and card networks
  • Design and implement idempotent fault-tolerant APIs and webhook processing
  • Integrate and manage third-party connectivity and payment providers
  • Build and scale a low-latency real-time risk engine
  • Implement KYC AML primitives and audit-ready decision journaling
  • Ship a double-entry ledger and automated reconciliation jobs
  • Develop daily break detection and automated remediation workflows
  • Manage hot-wallet flows, transaction creation, and crypto delivery
  • Implement reliability patterns SLOs retries backoffs dead-letter queues and canary releases
  • Instrument systems with traces metrics and logs and build ops dashboards
  • Participate in the production on-call rotation
  • Drive features from concept through production in cross-functional collaboration

Benefits

  • Tokens/Equity

Skills

Lead Blockchain Payments Engineer - Fiat Ramps at Baton Corporation | JobStash