Golang Back End Developer

We’re looking for a Mid-level / Mid+ Go Backend Engineer to build and operate high-throughput microservices. You’ll focus on performance, reliability, and clean design, using profilers and remote debugging to keep services fast and stable in production. Location Remote We kindly ask you to send your CV in English, as it is the official language of the HORISEN group. Mid-level / Mid+ Go (Golang) Backend Engineer — High Load & Microservices. Requirements Design, build, and operate Go microservices for high-load, low-latency workloads (REST/gRPC) Profile and optimize code (CPU/memory/trace) using pprof, go tool trace, flame graphs Write robust unit tests (table-driven) and meaningful benchmarks (go test -bench), keep coverage healthy Integrate with data/streaming systems: Kafka, Redis, MongoDB, ClickHouse Ship via GitLab CI/CD (pipelines, runners, Docker images); automate quality gates Contribute to service observability (metrics/logging/tracing/Prometheus/OpenTelemetry/Jaeger) Apply design patterns and clean architecture; participate in code/design reviews Must have 2–3+ years of backend experience, 2+ with Go in production Strong Go fundamentals: concurrency (goroutines, channels, context, sync), profiling, performance tuning Remote debugging proficiency (Delve) and production troubleshooting skills Solid testing discipline (unit tests, benchmarks) and GitLab CI/CD experience Practical knowledge of REST/gRPC and at least one of Kafka/Redis/MongoDB/ClickHouse Familiarity with design patterns, SOLID/clean architecture, idiomatic Go Nice to have Deeper expertise with Kafka (consumer groups, idempotency, exactly-once patterns), schema registry (Avro/Protobuf) ClickHouse performance tuning; Redis as cache/rate-limit/locks; MongoDB schema design Observability stacks (Prometheus, Grafana, OpenTelemetry, Jaeger, Loki) Impact: own services that process real traffic at scale Modern stack, strong engineering culture, code reviews, technical growth At HORISEN we build a workplace that supports, inspires and encourages our people. We foster a work environment where people are motivated to give their best and feel good about what they do. Work: Dynamic work in a company with more than 20 years of experience in a future-oriented industry Competence: Opportunity to grow under the mentorship of colleagues with extensive experience and to make a personal contribution Team: A powerful mixture of highly experienced professionals and young team members who are motivated, open-minded and easy to cooperate with Cooperation: A supportive, non-toxic environment with a safe space to share your ideas and opinions Workplace: A modern working environment with everyday refreshments and a good mood A competitive salary with performance-related improvements and great development opportunities Chance to contribute to cutting-edge messaging technology development, expand knowledge and master your professional skills About HORISEN HORISEN is an award-winning technology software house for retail and wholesale messaging technology.

We offer
a wide variety of business messaging solutions – feature-rich, carrier-neutral, and sales-driven to messaging companies. With more than two decades of experience and passion for software development, we are revolutionizing messaging business by developing at the edge of technological possibilities. Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology Industries IT Services and IT Consulting