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Backend Developer

About THNDR

At THNDR, we’re building the first PvP skill gaming platform with perfected player liquidity. We partner with iGaming operators to boost retention and expand market reach with our customizable, competitive game content.

We’re looking for a Backend Developer to help us build scalable integrations and backend services that make onboarding operators smooth, secure, and reliable.

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The Role

As our Backend Developer focused on Integrations, you'll be responsible for designing and maintaining the systems that enable hundreds of operators to deliver exceptional gaming experiences to their users.

Your work will directly impact platform reliability, operator satisfaction, and our ability to scale rapidly across global markets.

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Responsibilities

• Build APIs and backend services for operator integrations (embed flow, sessions, authentication)
  
• Implement operator-specific configurations, security checks, and webhooks/callbacks
  
• Improve scalability, monitoring, and reliability of integration services
  
• Write clean technical documentation for operators and internal teams
  

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Tech Stack

• Node.js + TypeScript (Express, NestJS)
  
• Google Cloud Platform (Cloud Run, Spanner, Firebase)
  
• Docker

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Requirements

• 3+ years building production backend systems and APIs
  
• Strong understanding of authentication/security (JWT, OAuth, API keys)
  
• Experience building SaaS integrations or third-party APIs
  
• Comfortable with cloud infrastructure (GCP preferred) and microservices
  
• Able to own features end-to-end from design to production
  

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Nice to Have

• Gaming, real-time systems, or high-concurrency experience
  
• WebSocket / real-time communication protocols
  
• Monitoring tools (Datadog, Prometheus, New Relic)
  
• Fluent in English and Polish
  

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How to Apply

Please send us an email detailing your interest and fit for the role, as well as your resume.

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