Senior Go Engineer

Golang Engineer – Fintech

We're hiring a Golang Engineer for a fast-growing fintech building payment infrastructure used across the EU/UK. The team supports PSPs, EMIs and digital banking platforms, operating at scale within a regulated environment. Strong domain knowledge is essential.

Role Overview:

You’ll work on the core payment gateway; designing, developing and optimising Go-based services that power high-volume financial operations.

Expect involvement in microservices architecture, secure system design and integrations with external payment providers.

Key Responsibilities:

• Build stable, fault-tolerant Go services for payment and settlement flows
• Design APIs, data models and service-level integrations
• Implement security-first development practices (PCI DSS, secure data handling)
• Improve performance through profiling, concurrency and efficient data/storage use
• Contribute to microservices architecture decisions (service boundaries, patterns, queues/streams)
• Maintain quality through testing and code reviews
• Provide practical, domain-informed input to technical discussions

Essential Experience:

• 3-5 years Go + 5 years backend/fintech experience
• Strong understanding of distributed systems and API design (REST/RPC)
• SQL/NoSQL databases, message brokers (Kafka or NATS), caching
• CI/CD pipelines (preferably GitLab) and AWS
• Observability tooling: Prometheus, Grafana, OpenTelemetry
• Experience integrating with processors, acquirers or anti-fraud systems
• Security-by-design approach and familiarity with compliance standards (PCI DSS, GDPR)

Golang Engineer – Fintech