Technology

Go

A language for high-performance services and microservices: concurrency via goroutines, low latency, simple deployment.

About the technology

I have used Go for five years where performance, low memory consumption and predictable latency under high load are critical. The language is deliberately minimalist, and that simplicity is its strength: the code is easy to read, review and maintain as a team, and the barrier to entry for new developers is low. The main thing I value about Go is its built-in concurrency model based on goroutines and channels. Thousands of lightweight goroutines let you serve a huge number of simultaneous connections with minimal overhead, while channels and the sync package provide clear synchronization primitives. I design concurrent code carefully: I use contexts (context.Context) for cancellation and timeouts, errgroup to manage groups of goroutines, watch for races with the built-in -race detector, and avoid goroutine leaks. In Go I have written high-load HTTP and gRPC services, gateways, event-stream handlers from Kafka and NATS, background workers and command-line utilities. Static compilation into a single binary with no external dependencies radically simplifies delivery: the container is tiny, startup is instant, and deployment to Kubernetes is trivial. Strict typing, explicit error handling and the absence of hidden magic make service behavior predictable in production. I follow the idiomatic style, format code with gofmt, check it with golangci-lint, and organize the project on clean-architecture principles with layer separation and dependency inversion through interfaces. Testing is an integral part: I write table-driven tests, benchmarks for hot paths, and use pprof profiling to find CPU and memory bottlenecks. For observability I add structured logging, Prometheus metrics and OpenTelemetry tracing. Paired with PHP/Laravel, Go perfectly covers tasks that need maximum throughput and minimal latency: I move the performance-critical parts of the system into it, leaving product logic in the more expressive PHP ecosystem. This division gives the best of both worlds.

Experience

1 year in production

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