Senior Backend Engineer – Go / EKS / WebSockets & Reverse Proxy (IoT at Scale)

BSH SPRZĘT GOSPODARSTWA DOMOWEGO sp. z o.o.Warszawa, Województwo mazowieckie, Polska

30+ days ago

Job description

Responsibilities

Design, implement, and operate backend services inGothat managemillions of persistent WebSocket connections
Own and evolve thereverse proxy layerthat 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 onAmazon 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 forconnection tracing, diagnostics, and recovery in a distributed system
Drive continuous improvements to system observability, maintainability, and operational efficiency

Requirements

Proven ability to handlereal-time messaging systemsandmillions of concurrent connections

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

Fluent in English and comfortable working ininternational, distributed teams

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

Offered

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.

Benefits

sharing the costs of sports activities

private medical care

sharing the costs of foreign language classes

life insurance

remote work opportunities

flexible working time

corporate products and services at discounted prices

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Senior Backend Engineer • Warszawa, Województwo mazowieckie, Polska

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