We are looking for a Senior Engineer to join our Payments & Wallet team (also known as PAW) – the core group handling asset management, compliance, and On-chain Services & Integrations (Superwallet) at Coinhako.

In this role, you will be responsible for designing, developing, and maintaining high-performance services that power our payments and wallet infrastructure. You’ll collaborate with cross‑functional teams to ensure seamless integration across systems, optimize transaction workflows, and enhance platform reliability and scalability.

• Architect and build scalable backend services. Our tech stack is Rails 7, Go, Sidekiq, REST, AWS, Docker;
• Design and build high-volume APIs used by our frontends and external traders;
• Take initiative to ensure the long‑term quality of the code and drive decisions related to the architecture of production systems;
• Manage and maintain custody solutions f...