#vacancy #backend #nodejs #remote #onsite #prague Backend Developer (Node.js / NestJS)

Work format: On-site / Remote Location: Prague, Czech Republic

About the Company

We are building a high-load iGaming product and are looking for a Backend Developer to join our engineering team. You will work on payment infrastructure, develop new services, and contribute to the evolution of our scalable backend architecture.

Responsibilities:

• Develop and maintain microservices using Node.js and NestJS. • Integrate external payment providers and game aggregators. • Maintain and enhance existing payment modules. • Develop new product features, including bonus systems, categories, and other platform functionality. • Design database schemas, indexes, migrations, and optimize queries. • Work with infrastructure technologies such as Docker, Kubernetes, and AWS. • Participate in architecture design and technical decision-making. • Collaborate closely with Backend, QA, and Product teams. • Take part in code reviews, testing, and mentoring.

Requirements:

• On-site work in Prague. • 3–6 years of commercial Backend development experience. • Strong knowledge of JavaScript and TypeScript. • Solid experience with Node.js. • Strong knowledge of NestJS. • Experience with microservice architecture. • Experience working with SQL and NoSQL databases. • Strong knowledge of PostgreSQL and MongoDB. • Experience with Docker and Kubernetes. • Experience with AWS (EKS, S3, IAM). • Experience with RabbitMQ. • Ability to write clean, maintainable, and reliable code. • Understanding of scalable backend architecture and best practices. • English level: B2 or higher.

Nice to Have:

• Experience with Express.js. • Knowledge of Go (we have existing Go microservices). • Experience with Redis. • Experience with ClickHouse. • Experience writing Unit and Integration tests. • Experience with payment systems. • Experience in iGaming, FinTech, or other high-load products. • Experience with Live Casino, Live Events, or Streaming.