Senior Backend Engineer (Esports Domain)

We are looking for a highly experienced Senior Backend Engineer with a strong background in designing and developing scalable backend systems. You will be working on a high-traffic, performance-critical application in the esports domain. This role requires deep technical expertise, ownership mindset, and the ability to contribute to system architecture and decision-making.

Key Responsibilities

• Design, develop, and maintain robust backend services using NestJS, following best practices in modular architecture, DI, and middleware design.
• Architect and optimize complex PostgreSQL schemas, including migrations, relationships, and handling of semi-structured data via JSONB.
• Set up and tune Elasticsearch for multilingual, full-text search with support for analyzers, stemming, and synonyms.
• Implement and maintain synchronization strategies between PostgreSQL and Elasticsearch, using queues or manual sync mechanisms.
• Build reliable, well-documented RESTful APIs; experience with GraphQL is a strong advantage.
• Ensure secure access control, rate-limiting, and robust authentication mechanisms.
• Utilize Redis for caching, rate-limiting, and background job processing (e.g., Elasticsearch sync jobs).
• Write clean, maintainable, and thoroughly tested code using Jest or similar testing frameworks.
• Collaborate with cross-functional teams, take ownership of feature delivery, and contribute to the overall architecture and tech roadmap.

Required Skills

• 5+ years of professional experience in backend development, ideally within high-scale or real-time systems.
• Production-level experience with NestJS, PostgreSQL, Elasticsearch, and Redis.
• Deep understanding of system design, data modeling, and query optimization.
• Solid grasp of event-driven architecture and asynchronous job processing.
• Comfortable working in fast-paced, product-focused environments.
• Excellent problem-solving skills and a proactive mindset.
• English: B2 level or higher – able to clearly articulate technical concepts and actively participate in discussions.