We are looking for a Senior Backend Engineer experienced in Real-Time Communication (RTC), low-latency data processing, and distributed backend systems. Our client is a fast-growing AI company building cutting-edge solutions for enterprise-level contact centers. Their platform leverages advanced artificial intelligence to deliver natural and personalized conversations across multiple communication channels — including voice, chat, and messaging apps.

You will collaborate directly with the Engineering Manager / Product Owner, aligning technical architecture with business objectives. This is a fully remote position within the Polish time zone, with occasional client meetings.

Recruitment Process:

Introductory technical interview with our internal team

Two client interviews:

Meet & Greet

Technical interview with coding challenge

Senior Backend RTC Engineer With TypeScript

Your responsibilities

• Design and develop scalable backend systems using Node.js and TypeScript
• Build and maintain containerized applications running in Kubernetes clusters
• Collaborate with internal developers and technical leadership to deliver high-quality enterprise solutions
• Ensure performance, reliability, and low latency in real-time communication systems
• Participate in technical planning, architectural decisions, and code reviews

Our requirements

• 7+ years of experience in backend development
• Strong hands-on experience with: OOP TypeScript Node.js MongoDB Docker
• Passion for clean, modular, and maintainable code
• Proven experience in at least one of the following technical areas: SIP protocol Real-Time Communication (RTC) Networking / Data streaming Low-latency / High-throughput data processing
• Experience with Kubernetes
• Familiarity with NestJS, Inversify, or Koa
• Knowledge of Redis, Jest
• Microservices architecture
• Participation in research sprints and technology evaluations