This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Middle/Senior Golang Engineer based in Spain.

As a Middle/Senior Golang Engineer, you’ll build and evolve high-performance backend services powering modern fintech and Web3 payment products. You’ll work extensively with Go, blockchain infrastructure, smart contracts, and EVM-compatible networks. The role covers everything from API and microservice development to transaction processing, cross-chain operations, and secure financial data management. You’ll help design reliable systems capable of handling sensitive payment and fund flows with high availability and low latency. Working closely with product and engineering teams, you’ll contribute to solutions spanning blockchain, payments, and third-party integrations. You’ll also have the opportunity to strengthen production reliability through monitoring, debugging, and observability. This is a fully remote, international engineering environment where technical ownership, security,



and scalability are highly valued.

Accountabilities
- Design, develop, and maintain backend services in Go, with a focus on high-performance and low-latency processing for Web3 and card payment systems.
- Build and maintain smart contract integrations, including interactions with on-chain data and transaction flows between blockchain networks and application services.
- Develop and manage APIs connecting blockchain infrastructure, payment systems, and external services.
- Implement secure and efficient transaction-processing workflows, including asynchronous confirmations and sequential transaction orchestration.
- Develop services supporting cross-chain token swaps, stablecoin transactions, cryptocurrency transfers, and fund management across multiple blockchain networks.
- Implement robust security measures for sensitive financial and user data, including encryption, authentication, authorization, and secure d

📌 Middle/Senior Golang Engineer (España)
🏢 Jobgether
📍 España