Senior Software Engineer

About Rivet

Rivet is composable, open-source infrastructure for modern AI requirements. Everything we do is built with an emphasis on self-hosting, flexibility, and performance. We believe no good engineering happens in a vacuum, so we work closely with customers to make sure Rivet fits their use case and is flexible enough for their roadmap.

At the core of Rivet is Actors: a primitive for stateful workloads. It provides addressable, long-running processes, SQLite-per-actor, WebSockets, and hibernation. Actors provide a powerful foundation for use cases like agentOS (virtual operating system for agents), Workflows (durable execution engine), and Dynamic Apps (AI-generated app hosting).

Rivet Cloud provides a managed way to run the Rivet stack.

Most of Rivet is open-source (Apache 2.0), self-hostable, and can be fully air-gapped in your VPC.

Code is available at github.com/rivet-dev

What You’ll Work On

• Rivet Engine (Rust, FoundationDB, Postgres, ClickHouse, NATS): the control plane that powers Rivet Actors
  • Actor orchestration (Pegboard)
  • SQLite & filesystem storage layer (Depot)
  • Durable execution & background jobs (Gasoline)
  • Traffic routing & edge network (Guard)
  • Multi-region Paxos KV (Epoxy)
• Rivet SDK (Rust core + TypeScript bindings): the SDK used to work with Rivet Actors
• agentOS (Rust core + TypeScript bindings): virtual operating system for agents with execution, filesystems, orchestration
• Workflows & Dynamic Apps (TypeScript): thin SDKs built on top of Rivet Actors
• Rivet Cloud: multi-tenant, edge routing, autoscaling, and observability

Almost everything you write will be public.

AI Policy

We break down our codebase in Rivet:

• Core engine: no/limited ai for mission critical + “off rails” code
• SDKs + frontend: reviewed ai for routine + “on rails” code
• Website: just test the output

Requirements

• 6+ years on backend or infrastructure systems
• Distributed systems experience in production
• Rust, or a strong systems background in another language like C++ or Go
• Working knowledge of TypeScript

Stack: Rust, TypeScript, FoundationDB, Postgres, ClickHouse, NATS, SQLite.

Benefits

• Health, dental, and vision insurance
• 401(k)
• Unlimited PTO