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.

What you'll be doing

• 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 soluti...