Senior Ruby Developer

About the company

We are one of 2 largest global companies, which operates major comparison and gaming platforms in the field of gaming and sports betting, used 100M+ people worldwide.

We are developing scalable backend systems, which must work reliably even under high load and in real-time scenarios.

Technologies

• Ruby (Ruby on Rails)
• event-driven architecture
• real-time technologies (Pub/Sub, WebSockets, SSE)
• cloud (primarily GCP, possibly AWS)
• large production systems with high load

What are you going to do?

• develop and maintain backend of game and real-time platform
• work on the architecture so that it is fast, stable and scalable
• improve system performance and reliability, especially in live / real-time parts
• gradually take over ownership over existing parts of the system
• collaborate with backend developers, SRE and product team
• to do code review and participate in technical decisions

Who are we looking for?

• senior backend developer (5+ years of experience)
• experience with backend development (Ruby)
• experience with larger production systems
• knowledge of API-first approach and modern backend architecture
• experience with event-driven or real-time systems
• ability to work independently and improve existing code
• English B2

The advantage is

• experience with Go, Python, Rust or Node.js
• basic overview of React / TypeScript (for cooperation with FE)
• experience with GCP or AWS
• interest in gaming or real-time systems

Benefits

• competitive salary based on seniority
• 10% annual bonus
• flexible working hours (core time 10:00 - 15:00)
• hybrid work (3–4 days in the office in Bratislava)
• company hardware
• strong health and retirement benefits
• long-term investment programs
• stable, financially strong environment
• long-term work on key product