Senior Backend Engineer – Go / EKS / WebSockets & Reverse Proxy (IoT at Scale)
BSH SPRZĘT GOSPODARSTWA DOMOWEGO sp. z o.o.Wrocław, Lower Silesia, Poland30+ days ago
Job descriptionDataDog IoT 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 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 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. 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 extra social benefits pre-paid cards extra leave
technologies-expected :
- Go
- EKS
- Kubernetes
- AWS
technologies-optional :
responsibilities :
requirements-expected :
offered :
benefits :
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Senior Backend Engineer • Wrocław, Lower Silesia, Poland
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