Backend Developer

About the role

Join Betalab’s Partnership and Digital department as a Backend Developer. You will design, build and maintain high‑performance APIs and services that power both internal and external applications.

Key responsibilities

• Design, develop and maintain APIs using Spring Boot and Go.
• Build enterprise‑grade backend applications and optimise their performance through caching, batching and efficient queries.
• Collaborate with frontend teams to ensure APIs meet business and UX requirements.
• Implement security best practices, including authentication, authorization, rate‑limiting and input validation.
• Write clean, maintainable and well‑documented code following industry standards.
• Participate in code reviews, technical discussions and architecture planning.
• Monitor, debug and improve the reliability of backend services.

Required profile

• Bachelor’s degree in Computer Science, Information Technology or a related field.
• Proven production experience as a backend developer.
• Strong problem‑solving abilities and experience working in cross‑functional teams.

Required skills

• Spring Boot, Go, C#/.NET
• Node.js, TypeScript
• Message queues – Azure Service Bus, Kafka
• Databases – PostgreSQL, MySQL, Oracle
• API security – OAuth, JWT
• Server frameworks – Apollo Server, Express.js, NestJS
• Git, CI/CD pipelines, Docker, Kubernetes
• Cloud platforms – AWS, GCP, Azure