Backend Engineer (C# / Go)

About the role

Betway is looking for a Backend Engineer to help build and optimise high‑performance services that power millions of online gaming customers. You will work across a mixed technology stack, focusing on both legacy C# systems and modern Go‑based micro‑services.

Key responsibilities

• Design, develop and enhance backend services using C# and Go.
• Ensure systems are scalable, resilient and performant in a high‑traffic environment.
• Support migration from legacy C# services to Go micro‑services.
• Contribute to architecture evolution, applying DDD and Hexagonal Architecture patterns.
• Identify and refactor opportunities in existing C# components.
• Collaborate with cross‑functional engineering teams to improve design, maintainability and reliability.

Required profile

• Strong written and verbal communication skills.
• Collaborative mindset with the ability to work across teams.
• Excellent organisational abilities and attention to detail.
• Adaptability in fast‑moving environments.
• Proficiency in C# and/or Go, with willingness to work across both languages.
• Experience with SQL (MSSQL, PostgreSQL) and NoSQL (MongoDB) databases.
• Familiarity with messaging systems such as Kafka and RabbitMQ.
• Hands‑on experience with microservices, distributed systems and CI/CD pipelines (Azure DevOps).

Required skills

• C#
• Go (Golang)
• SQL (MSSQL, PostgreSQL)
• MongoDB
• Kafka
• RabbitMQ
• Microservices architecture
• Domain‑Driven Design (DDD)
• Hexagonal Architecture
• CI/CD pipelines
• Azure DevOps