We're looking for an experienced Go developer to build and lead development of high-performance microservices. You'll work with modern cloud technologies and help design our distributed systems using gRPC and containerized services. **What You'll Do**: - Lead architectural decisions for microservices and mentor junior developers; - Design and build gRPC APIs using Protocol Buffers; - Optimize service performance, reliability, and scalability; - Collaborate with DevOps on deployment and monitoring; - Establish coding standards and conduct code reviews; - Work with distributed systems and inter-service communication. **Required Skills**: - 5+ years Go (Golang) production experience - 3+ years microservices architecture experience - gRPC & Protocol Buffers for service design and RPC communication - Docker containerization and service deployment - PostgreSQL & Redis for databases and caching - Git, CI/CD, and modern development workflows - Experience with high-traffic, distributed systems - Previous senior/lead developer role preferred - Upper-Intermediate/Advanced English level **Technical Knowledge**: - Service mesh architectures and communication patterns - Authentication/authorization (JWT, OAuth2) - API gateway design and traffic management - Database per service patterns and data consistency - Envoy Proxy configuration and load balancing **Nice to Have**: - Event-driven architecture experience - Buf for Protocol Buffer management and code generation - Service discovery and observability tools - Cloud-native deployment experience - Performance optimization and monitoring **We offer**: - Flexible working format - remote, office-based or flexible - A competitive salary and good compensation package - Personalized career growth - Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) - Active tech communities with regular knowledge sharing - Education reimbursement - Memorable anniversary presents - Corporate events and team buildings - Other location-specific benefits - not applicable for freelancers