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Senior NodeJS Developer

2 months, 3 weeks ago
Serbia, Spain, Georgia, Czech Republic, Poland, Armenia
Full-time
Senior
Backend Engineer
Software Development
Ant Design CI/CD Docker GitLab CI Grafana Helm JavaScript JWT Kubernetes Load Balancing Node.js OpenAPI OpenTelemetry Playwright Prometheus React REST API SQL TLS TypeScript WebSockets
Apply Now
Talentgrator

Talentgrator

Talentgrator specializes in providing recruitment services tailored specifically for the iGaming industry, connecting businesses with skilled professionals and helping job seekers find optimal employment opportunities.

Hotels, Restaurants & Leisure
11-50
Founded 2020
View All Jobs 35

Description

  • Design, develop, and optimize services within the core networking platform.
  • Build reliable systems for request processing, routing, load balancing, failover, and streaming data delivery.
  • Improve platform scalability, performance, and operational excellence.
  • Work directly with HTTP/1.1, HTTP/2, WebSocket, TLS, CONNECT tunneling, and compression technologies in production.
  • Diagnose and resolve complex networking issues in live environments.
  • Implement tracing, metrics, and logging with OpenTelemetry.
  • Build dashboards and alerts directly from code and improve system observability under load.
  • Maintain and extend runtime integrations with external web applications.
  • Develop compatibility layers between internal systems and third-party clients.
  • Write portable TypeScript code for both Node.js and Bun, and participate in architecture and technical decision-making.
  • Own projects end to end from research and design through implementation, testing, deployment, documentation, and retrospectives.

Requirements

  • 5+ years of commercial experience with TypeScript and JavaScript.
  • Strong expertise in Node.js development.
  • Deep understanding of asynchronous programming, event loops, streams, error handling, and high-performance backend systems.
  • Experience designing and maintaining production-grade services.
  • Practical understanding of HTTP/1.1, HTTP/2, WebSocket, TLS, HTTP headers, caching, and compression.
  • Ability to troubleshoot real-world networking problems.
  • Experience designing modular systems with clean boundaries, dependency injection, type-safe contracts, and maintainable code structures.
  • Strong understanding of scalable application architecture.
  • Experience with unit testing, integration testing, and end-to-end testing.
  • Comfortable using TDD as a practical engineering tool.
  • Strong knowledge of SQL databases, ORM frameworks, database migrations, indexes, transactions, and performance optimization.
  • Experience with monitoring, logging, tracing, CI/CD pipelines, monorepo workflows, and production performance under load.
  • Experience reading minified or obfuscated JavaScript bundles, reverse engineering behavior without source code, and analyzing network traffic with HAR files and proxy tools is highly valued.
  • Experience debugging HTTP/2 and WebSocket traffic, browser instrumentation, runtime code injection, Service Workers, modern SPA architectures, Playwright, and BrowserStack is highly valued.
  • Ability to use AI critically and responsibly, verify generated code, follow structured workflows, and consider security implications when using AI tools.

Benefits

  • 20 vacation days and 5 family days per year.
  • Flexible start to the workday.
  • Support from a professional corporate coach and psychologist.
  • Regular internal and external activities, workshops, trips, and corporate events.
  • Access to an internal knowledge base, meetups, and team-building activities.
  • Ongoing training in new technologies and continuous professional development support.

Interested in this position?

Apply directly on the company website

Apply Now

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