Senior Golang Developer – Payment Verification Systems

About the Role

At CheckPayee, we’re building the infrastructure of trust for European payments. Our real-time API verifies payees before payments are processed — protecting users and reducing APP fraud. As a Senior Golang Developer, you’ll work on high-performance, mission-critical systems that process millions of payment verifications daily across European markets.

What You’ll Do

• Build Scalable APIs: Design and implement high-throughput REST and gRPC APIs for real-time payment verification
• Optimize Performance: Ensure sub-second response times for payment verification requests
• Enhance Security: Implement robust security measures for handling sensitive financial data
• Collaborate Cross-functionally: Work closely with product, compliance, and customer success teams
• Mentor Junior Developers: Share knowledge and help grow our engineering culture

Technical Stack

• Backend: Go 1.21+, PostgreSQL, Redis, RabbitMQ
• Infrastructure: Docker, Kubernetes, AWS/GCP
• Monitoring: Prometheus, Grafana, ELK Stack
• CI/CD: GitHub Actions, ArgoCD

Requirements

Must Have

• 5+ years of professional Go development experience
• Experience building RESTful APIs and microservices
• Strong understanding of SQL databases and query optimization
• Experience with payment systems, banking APIs, or fintech applications
• Knowledge of security best practices in financial services
• Familiarity with containerization and orchestration (Docker, Kubernetes)

Nice to Have

• Experience with SEPA payment systems or banking protocols
• Knowledge of fraud detection and risk management systems
• Experience with high-frequency trading or real-time financial systems
• Contributions to open-source Go projects
• Experience with regulatory compliance (PCI DSS, GDPR)

About the Team

• We speak English, Ukrainian, and Russian
• We’re fast, transparent, and support each other
• We value smart architecture and clean code
• You’ll be part of a fraud-fighting, impact-driven backend team

About CheckPayee

CheckPayee is a European Verification of Payee (VoP) provider helping banks, PSPs, and fintechs prevent fraud and comply with SEPA regulations. We’re part of a German IT group with 10+ years of experience in fintech and medtech. We build systems that are secure, scalable, and fast — and we believe in engineering with purpose.

Application Process

1. Intro Call: Initial discussion about your experience and our needs
2. Tech Interview: Architecture and Go development discussion
3. Coding Task: Practical assessment of your Go skills
4. Team Call: Meet with the engineering team
5. Offer: Complete process within 10-14 days

Ready to fight fraud with smart code?

Apply now or reach out to our team at careers@checkpayee.com with any questions.