Gleam Development for Type-Safe BEAM Applications

Our AI-managed teams build fault-tolerant applications with Gleam, combining BEAM concurrency with friendly type safety for reliable systems.

Technology: Gleam (Programming Language)

Gleam is a type-safe, functional language that runs on the Erlang BEAM VM and compiles to JavaScript. It combines the reliability and concurrency of the BEAM platform with a friendly, modern type system. Our teams use Gleam for building fault-tolerant backend services and full-stack applications that benefit from BEAM concurrency with compile-time type safety.

What We Build

  • Fault-Tolerant Backend Services: Highly available backend services leveraging BEAM's supervisor trees and hot code reloading with Gleam's type safety guarantees.
  • Real-Time Communication Systems: Chat, notification, and live-update systems that handle massive concurrent connections with type-safe message passing.
  • Full-Stack Gleam Applications: Applications with Gleam on both server (BEAM) and client (JavaScript compilation) for shared types and logic across the stack.
  • API Services with Type-Safe Routing: Web APIs with compile-time route verification, type-safe request/response handling, and automatic serialization.

Expertise

  • Gleam Projects Delivered: 10+
  • BEAM Platform Experience: 5+ years
  • Type Error Elimination: 100% at compile time
  • Erlang OTP Interop: Full compatibility

Sample Projects

  • Real-Time Notification Service: A notification service handling 500K concurrent WebSocket connections with type-safe event routing and delivery tracking. (200 hours)
    • Type-safe event definitions
    • WebSocket connection management
    • Delivery tracking and retry logic
    • Multi-channel routing (push, email, SMS)
  • API Gateway with Rate Limiting: A type-safe API gateway with per-tenant rate limiting, request validation, and automatic OpenAPI spec generation. (160 hours)
    • Type-safe route definitions
    • Per-tenant rate limiting
    • Request validation middleware
    • Automatic API documentation
  • Task Queue Processing System: A distributed task queue with type-safe job definitions, priority scheduling, and fault-tolerant execution on the BEAM. (140 hours)
    • Type-safe job definitions
    • Priority-based scheduling
    • Automatic retry with backoff
    • Dead letter queue management

Frequently Asked Questions

What is the advantage of Gleam over Elixir?
Gleam adds compile-time type safety to the BEAM platform. While Elixir is dynamically typed, Gleam catches type errors before deployment. Gleam also compiles to JavaScript, enabling shared types between server and client.
Can Gleam use existing Erlang and Elixir libraries?
Yes. Gleam has full interop with the Erlang and Elixir ecosystem. You can call any OTP library from Gleam code, which gives you access to decades of battle-tested BEAM libraries.
Is Gleam mature enough for production?
Gleam reached version 1.0 and has a stable, growing ecosystem. The language is production-ready for backend services, especially when you value type safety and fault tolerance.