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Posted July 22, 2026
Tatum

Senior Backend Engineer

Tatum
Brno, South Moravian Region, Czechia Full Time

Tatum is a leading blockchain development platform and infrastructure provider worldwide. We offer developers and enterprises a highly flexible blockchain framework and tools to build, test, and run blockchain applications. With over 100,000 web3 projects and customers, we recently raised $41.5 million to fuel our rapid growth, and we're excited to expand our Engineering team with a Senior Backend Engineer.

Join a startup that is driven by a fast-paced, innovative, and risk-taking approach to business, as well as a focus on flexibility, collaboration, and respect. At Tatum, we have flat hierarchies, informal communication, and an emphasis on individual contribution and autonomy.

What you'll be doing

  • Collaborate closely with our frontend engineers and product team to design and deliver high-quality, scalable APIs and services for our customer-facing Dashboard
  • Develop and maintain efficient, reusable, and reliable TypeScript code using NestJS and modern backend tooling
  • Focus on quality and long-term maintainability of our products
  • Design and evolve data models and integrations backed by MongoDB
  • Integrate and maintain third-party services such as Stripe for billing and payments
  • Implement and maintain automated tests to ensure code quality
  • Participate in code reviews to provide and receive feedback
  • Stay up-to-date with the latest trends and best practices in backend development

Requirements

We are seeking a backend developer with a deep understanding of modern TypeScript and a strong ability to design and build robust back-end services (APIs, data layers, and integrations). A developer who is passionate about continuously improving and optimizing our existing codebase and pushing the quality bar higher.

In summary

  • Problem-solving and communication skills
  • Proven experience owning services in production and designing systems at scale
  • Strong understanding of API design and data modeling principles
  • Proficiency in JavaScript and TypeScript
  • Experience with the NestJS framework and MongoDB
  • Experience with Docker, Kubernetes, and GCP is plus
  • Experience integrating payment providers or paywalls (e.g., Stripe) is a plus
  • Experience with blockchain technology is a plus