EMCD is a global crypto ecosystem building products across mining, wallets, payments, custody, and digital asset infrastructure. We are looking for a Senior Go Developer to join the CHW Services team and work on backend services connected to real money flows: holds, debits, credits, provider integrations, reconciliation, and transaction lifecycle management. We are considering candidates from fintech or crypto backgrounds who have built and supported money operations in production. Responsibilities Build new backend services in Go and improve existing CHW Services products Integrate external providers via REST and internal services via gRPC and Kafka Refactor legacy services to reduce support cost, simplify architecture, remove technical debt, and improve test coverage Improve monitoring, logging, alerting, and security for financial flows Support production systems, investigate incidents, and track operation lifecycle end to end Provide technical mentorship within the team Requirements Production experience with money operations in fintech or crypto: holds, debits, credits, balances, transaction lifecycle, and reconciliation Strong understanding of how to store and move money between systems safely: decimal precision, operation keys, idempotency, consistency, and auditability Strong production experience with Go, PostgreSQL, gRPC / REST, and Kafka Real experience applying microservice patterns to financial systems: Saga, compensation, distributed transactions, outbox, idempotent consumers, and reconciliation loops Experience integrating external providers via REST, including timeouts, provider-side statuses, delayed reversals, and “our side / their side” reconciliation Strong PostgreSQL beyond CRUD: transactions, isolation levels, unique constraints, locks, indexes, and EXPLAIN Strong Kafka knowledge: partitions, consumer groups, offsets, rebalancing, delivery guarantees, ordering, and safe horizontal scaling Active use of AI agents in development, with a practical understanding of spec-driven workflows and harness building What We Offer Fully remote work from anywhere in the world Flexible working hours focused on results 20 paid vacation days + 12 additional bonus days 100% paid sick leave Paid English lessons Support for courses, certifications, and training programs Real ownership in fintech and crypto infrastructure projects