Backend Developer (Node.js / Nest.js)

We are looking for strong Backend Developers to join our growing product team. Projects include a sweeptakes platform for the US market and online casino for South America. The position is based in the Prague office with official employment, offering up to $4000 net per month.

• Development and maintenance of microservices
• Integration with external payment systems and game aggregators
• Development and support of payment modules
• Implementation of new product features (categories, bonus systems, etc.)
• Database design, schema creation, indexing, migrations and query optimization (SQL + NoSQL)
• Work with infrastructure: Docker, Kubernetes, AWS
• Participation in code review, testing and mentoring
• Support of current architecture and participation in building a new one

• 3–6 years of commercial experience with Node.js and Nest.js
• Strong knowledge of TypeScript
• Solid experience with SQL and NoSQL databases
• Understanding the importance of reliable and clean code (SOLID, architecture, maintainability)
• Experience with payment systems integration and building stable financial solutions (idempotency, transactions, webhooks, reconciliation)
• Good English level (B1+)
• Will be a big plus: Go language, Unit & Integration testing, ClickHouse, Experience with live casino / streaming / real-time events

• Competitive salary up to $4000 net
• Prague office position: official employment (Czech contract), paid sick leave (10 days after 1 year), paid vacation
• Remote position: flexible contract
• Probation period — 3 months
• Paid overtime
• Salary payment in cryptocurrency
• Interesting projects in gambling & sweepstakes niche
• Opportunity to influence product architecture