Senior Go Developer (fintech/crypto)

EMCD · Georgia · posted today ago

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About this role

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