Senior Golang Developer

Location: Prague, Prague, Czechia

Department: Saas Platform| iGaming

Workplace: remote

Employment Type: full

Description

Lead the design and development of high-performance backend services in Go, ensuring scalability, reliability, and clean architecture.

Drive key architectural decisions within a microservices ecosystem, evaluate technology choices, and define integration patterns and best practices.

Profile applications, optimize CPU and memory utilization, fine-tune Gos garbage collector, and leverage concurrency primitives to achieve maximum performance.

Design efficient data models, optimize complex queries and indexing strategies in PostgreSQL/MySQL, and ensure high performance under intensive read/write workloads (thousands of QPS).

Build observability into services by implementing metrics, logging, and distributed tracing. Participate in production incident investigations and perform root cause analysis across application code, networking, and operating system layers.

Conduct thorough code reviews, share technical expertise, mentor engineers, and promote engineering best practices across the team.

Collaborate closely with DevOps, QA, Product, and other engineering teams to deliver production-ready features quickly, safely, and reliably.

Requirements

4–5+ years of commercial experience using Go as the primary programming language, with a deep understanding of its internals, including memory management, scheduler, maps, channels, garbage collection, sync.Pool, and atomic operations.

Proven experience designing, building, and operating large-scale distributed systems and microservices in high-load production environments.

Strong expertise in PostgreSQL or MySQL, including query optimization, indexing strategies, replication, clustering, and resolving lock contention in multi-terabyte databases.

Hands-on experience with messaging platforms such as NATS and Apache Kafka, along with a solid understanding of their architectural trade-offs, including latency and persistence.

Solid understanding of Linux internals, networking fundamentals, virtualization, and containerization technologies (Docker/Kubernetes), with the ability to troubleshoot production issues effectively.

Benefits

• 20 vacation days and 5 family days yearly
• 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 our internal knowledge base, meetups, and team-building activities
• Ongoing training in new technologies and continuous professional development support