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Senior NodeJS Developer

2 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
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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 54

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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