Senior Backend Engineer – Go EKS WebSockets

4 tygodni temu

Łódź, łódzkie, Polska BSH Sprzęt Gospodarstwa Domowego Pełny etat

Your responsibilities

  • Design, implement, and operate backend services in Go that manage millions of persistent WebSocket connections

  • Own and evolve the reverse proxy layer that routes traffic from devices across our global infrastructure

  • Optimize connection lifecycle handling (open/idle/close), routing logic, and failover for long-lived connections

  • Manage workloads on Amazon EKS, focusing on resiliency, scalability, and automation

  • Collaborate with platform, security, and architecture teams to ensure robust and secure communication flows

  • Define and monitor key technical metrics: connection stability, message latency, throughput, and availability

  • Build tooling for connection tracing, diagnostics, and recovery in a distributed system

  • Drive continuous improvements to system observability, maintainability, and operational efficiency

Your profile

  • Proven ability to handle real-time messaging systems and millions of concurrent connections

  • Familiarity with telemetry and observability tools (e.g., DataDog, Prometheus)

  • Fluent in English and comfortable working in international, distributed teams

  • Self-motivated, pragmatic, and able to take full ownership of technical domains

Nice to Have

  • Experience with IoT communication patterns, device provisioning, and cloud-to-device messaging

  • Background in real-time systems, edge architecture, or message brokers

  • Experience contributing to or maintaining open-source Go libraries

  • Understanding of DoS protection, rate limiting, and scalable security mechanisms in WebSocket-heavy systems

Your benefits

  • Dynamic International Environment: Collaborate with diverse teams globally, enriching your experience and expanding your professional network.

  • Collaborative Team Culture: Join a supportive team that values your contributions and encourages your growth.

  • Professional Development Opportunities: Expand your skills through engaging projects and responsibilities that challenge and inspire you.

  • Flexible hybrid work arrangements: Enjoy a mix of remote work and office collaboration, with a minimum of one day per week in our modern offices.

  • Comprehensive Benefits Package: Enjoy private health care, a Lunchpass card, a sports card, group insurance options and employee discounts.

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