[Hiring] Senior Rust Blockchain Developer @Launch Legends

Role Description

We’re offering a unique opportunity to join Launch Legends (and Autheo) as a part-time Equity Cofounder. This role reports to the engineering leads.

Autheo’s Layer-0 coordination layer is Cosmos-based, with IBC interoperability and an EVM-compatible execution environment. We are recruiting a senior Rust engineer who has written production Rust in a real blockchain stack: the node, smart contracts or a runtime, and the tooling other teams build on.

This is hands-on engineering, not advisory work. You will write and review the Rust that runs on Autheo, own changes from design to release, and build the tools that make Autheo easy for builders to start on.

• Chain, node and protocol paths:
  • Design, build, and review Rust components on the Autheo node: consensus-adjacent paths, networking, state, sync, or the execution environment.
  • Keep those paths deterministic, tested, and safe to upgrade, and work with the Go and protocol teams where the stacks meet.
  • Instrument what you own so a failure can be explained from metrics and traces rather than guesswork.
• Smart contracts and execution:
  • Write and review Rust smart-contract or runtime code (CosmWasm, a Wasm-compatible runtime, or an equivalent contract SDK) that other builders can use.
  • Own metering, host interfaces, and the invariants that keep contract execution deterministic and sandboxed.
• Developer tooling and DevHub:
  • Build and maintain Rust tooling builders actually use: CLIs, contract SDKs, cargo-level build/test/deploy flows, and templates in DevHub.
  • Turn protocol and runtime changes into tooling and docs, so a developer can scaffold, test, and deploy on Autheo from DevHub without help.
• Testing, release and operations:
  • Unit, property, and end-to-end tests for every change; CI that builds, tests, and blocks a bad release.
  • Benchmarks on hot paths so a regression fails the build.
  • Run what you ship: testnet nodes, Kubernetes deployment, and Prometheus/Grafana dashboards.

Qualifications

• Public Rust you wrote in a blockchain or systems codebase.
• A GitHub/GitLab profile, crates.io crate, or merged pull requests to a node, runtime, contract SDK, or equivalent.
• 5+ years of production Rust: ownership, lifetimes, async (Tokio or equivalent), concurrency, and performance problems you have debugged under load.
• Hands-on work in at least one real blockchain, node, runtime, or smart-contract stack written in Rust (Substrate, CosmWasm, a Rust ABCI or CometBFT stack, reth, Agave/Solana, Sui/Aptos, Fuel, a Wasm runtime, or equivalent).
• Developer tooling or libraries other engineers depend on: a CLI, SDK, crate, or cargo-level toolchain.
• Comfortable operating your own work: Linux, Docker, Kubernetes, CI pipelines, full nodes or validators, and Prometheus/Grafana monitoring.

Requirements

• Contributions to a public Rust blockchain, runtime, cryptography, or tooling repository.
• Cosmos SDK, IBC, or CosmWasm work next to Rust.
• Smart-contract language, VM, or Wasm runtime experience (wasmtime, wasmer, revm, Move, or equivalent).
• Applied cryptography in Rust (signatures, keys, or NIST ML-KEM / ML-DSA / SLH-DSA) — a plus, not required.
• Teaching, conference talks, or workshops on Rust or blockchain engineering.

First 90 Days

• A written review of Autheo’s Rust surface: node, execution, contracts, and tooling — what is current, what is stubbed, and what is at risk, agreed with the engineering leads.
• At least one node, runtime, or contract-path change shipped through testnet rehearsal, with tests and CI coverage.
• One developer-tooling improvement in DevHub, such as a CLI command, SDK release, or template, used by another team.
• A benchmark in CI for one hot path you own.

Compensation & Growth Path

This is a part-time equity/token-based cofounder opportunity. You will receive equity in Launch Legends, Autheo, and the WFO Creator Network, along with token allocations in the Autheo blockchain. There is no cash salary for this role, and the commitment is at least 20 hours per week.

About Our Organization

Autheo is building a Layer-0 Operating System and an integrated Layer-1 so identity, compute, storage, developer tooling, and AI sit on one network instead of a pile of bridges. The work now is product and protocol: making that network faster, safer, and ready for the builders and businesses that will run on it.