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go backends

Go Backend Development Services

High-concurrency APIs, WebSocket services and microservices in Golang — built for the traffic spikes streaming apps actually get.

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Why teams choose us

Go backend development services are half of what Gravity Compile does. Our Go engineers build the services that sit underneath live streaming, real-time voice and in-app gaming: rooms, presence, wallet ledgers, payments, moderation pipelines — the unglamorous, latency-critical code that keeps a product alive at 50,000 concurrent users.

We chose Go because it is honest about concurrency. Goroutines, channels and a standard library that does not hide the network make it straightforward to reason about a million WebSocket connections. Every backend we ship includes the boring essentials too: observability, graceful shutdowns, retries, circuit breakers and migrations that do not eat your weekend.

What's included

  • WebSocket & real-time services

    Presence, chat and live updates that handle tens of thousands of concurrent connections.

  • High concurrency API development

    APIs designed against the 99th percentile, not the happy path.

  • Golang microservices

    Small services with clear contracts, deployable independently and testable in isolation.

  • PostgreSQL & Redis the right way

    Indexes, connection pooling and caching — the difference between 50ms and 5s.

  • Deployments & observability

    Docker, CI/CD, metrics and alerting from day one, not after launch week.

  • Wallets & payment ledgers

    Coins, gifts and payouts on ledgers that reconcile, with validated payment flows.

The stack

Full-stack, one team — designed in Figma, built in Flutter & Go, run in production. No hand-offs to strangers.

  • Go
  • gRPC
  • WebSocket
  • PostgreSQL
  • Redis
  • Docker
  • DigitalOcean
  • AWS

Fixed timelines, visible progress

  1. Discover

    We audit your current services, traffic patterns and the pain points you actually hit.

  2. Design

    Service boundaries, data contracts and a migration path that avoids the big-bang rewrite.

  3. Build

    Two-week sprints with load tests included — performance is a feature, not an afterthought.

  4. Run

    Monitoring, incident response and the scale work that happens after launch.

Questions, answered

Is Go the right choice for our product?
Go shines for network-heavy, latency-sensitive systems: real-time, streaming, IoT, payments. If your bottleneck is business-logic complexity rather than concurrency, we will tell you honestly and reach for the right tool.
Can you take over an existing Go codebase?
Yes. We routinely rescue and modernize Go services built by other teams — audits, tests, then incremental improvement.
Do you handle hosting too?
We deploy to AWS, DigitalOcean or your own cloud, and operate it for you if you want.
Can you add video calling to our product?
Yes. One-to-one and group calls, audio rooms and live streams are what we build most. See our video calling app development services.
What about load testing?
Every backend ships with a load-test harness aimed at your expected peak. We have seen 50K-concurrent launches; we plan for them.

Need a backend that survives launch night?

Tell us about your project — we'll reply with a plan, a timeline and a straight answer.

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