Senior DeFi Protocol Engineer — Autheo | Multi-Chain Markets, Wallets & Tooling

Shape the Future of Blockchain—Bringing Business On-Chain

We’re offering a unique opportunity to join Launch Legends (and Autheo) as a part-time Equity Cofounder. Founded in July 2021, Launch Legends is at the forefront of bridging Web3 blockchain technology with the next evolution of Web2 integration—bringing businesses on-chain through enterprise-grade solutions, DePIN innovations, and decentralized financial infrastructure.

Our flagship project, Autheo, is an AI-enabled Layer-0 Operating System with an integrated Layer-1 blockchain and complete decentralized infrastructure that includes decentralized compute, storage, identity, and service marketplaces, as well as a full-stack development environment (DevHub)—engineered for scalable enterprise adoption, developer innovation, and real-world blockchain integration.

Our Projects

• Autheo — https://www.autheo.com


• Docs — https://docs.autheo.com


• Autheo Team — https://www.autheo.com/teams


• Launch Legends (Parent Company) — https://www.launchlegends.io


• X / Twitter — https://x.com/Autheo_Network

About Autheo

With nearly 100 equity cofounders from leading companies and institutions—many with advanced degrees and PhDs—Autheo is solving the critical challenges blocking business adoption of blockchain technology.

Autheo’s Layer-1 network, staking and fee model, and DevHub builder environment are being built and strengthened, alongside sovereign identity (TheoID), decentralized compute and persistent storage through the Autheo Marketplace, AI inference (THEO AI), and post-quantum cryptography.

Key Features

• Layer-0 OS + Layer-1 — Sovereign Cosmos-based coordination layer with an EVM-compatible execution environment, IBC interoperability, and Proof of Autheo consensus.


• Eigensphere Engine — Multi-language runtime. Rust is a first-class path for execution, cryptography, and developer tooling, alongside Go, Solidity, Move, Vyper, and C.


• DevHub & full-stack SDKs — One workspace for frontend, backend, smart contracts, and orchestration.


• TheoID — Sovereign identity for people, services, and AI agents, with a post-quantum roadmap (NIST-standardized ML-KEM, ML-DSA, and SLH-DSA).


• Autheo Marketplace — Decentralized compute, storage, and service markets built into the Autheo network.


• THEO AI — Inference and agent orchestration as a native primitive, not a third-party bolt-on.


• DePIN infrastructure — On-chain networks for real-world infrastructure ownership and resource sharing.

Audits & Organization

• Audits: Halborn (testnet and validator node platform), CertiK (Layer-1 chain and smart contracts), Adevar Labs (Base to Autheo bridge).


• Token: THEO, the native utility coin of the Autheo network.


• Organization: Launch Legends Inc., a Wyoming corporation, parent of Autheo LLC. Stewarded in part by the Autheo Foundation. 100+ equity cofounders across 25+ countries.

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. We have already completed an initial financing round to support infrastructure and marketing, and are currently in discussions with VCs and crypto investors to fund expansion. There is no cash salary for this role, and the commitment is at least 20 hours per week.

ROLE: Senior DeFi Protocol Engineer — Autheo Internet Operating System | Multi-Chain Markets, Wallets & Tooling Job code: LA395

About the Role

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 DeFi protocol engineer who has built staking, vaults, automated market makers, or related protocol logic that other people used — in Solidity, Rust, Cosmos, or Move — and who can also work across wallets, custody, and the tooling builders depend on.

This is hands-on engineering, not advisory work. You will write and review the protocol code that runs on Autheo, own changes from design to upgrade, and help make Autheo a place builders can launch DeFi on without help.

1. Protocol design and implementation

• Design, build, and review DeFi protocol logic for Autheo: staking and fee mechanics, vaults, automated market makers, reward distribution, or equivalent market primitives — in Solidity, Rust (including CosmWasm), Cosmos SDK modules, or Move.


• Write upgrade paths and migrations that are deterministic, tested, and rehearsed on testnet before they ship.


• Work with the chain, bridge, and EVM teams so assets and messages move between Autheo’s execution environments with clear failure modes.

2. Multi-chain and interoperability

• Build and review IBC, bridge, or cross-environment paths that DeFi protocols depend on: transfers, channels, memos, and failure handling.


• Keep protocol behavior consistent across Cosmos and EVM surfaces, and document how a builder moves a position or an asset from one environment to the other.

3. Wallets, custody and developer tooling

• Work on wallet, custody, or signing flows that DeFi users and builders need: key handling, transaction construction, and multi-chain tracking.


• Turn protocol changes into tooling and docs in DevHub — SDKs, CLIs, examples — so a developer can integrate, test, and deploy without help.

4. Testing, security and operations

• Unit, fork or simulation, and invariant or fuzz tests for every protocol change; CI that builds, tests, and blocks a bad release.


• Run what you ship: testnet deployments, and monitoring that explains a failed transaction or an unexpected state change without guesswork.

Required

• Public protocol code you wrote. Merged pull requests or a public repository for DeFi, chain, wallet, or tooling work in Solidity, Rust, Go, or Move. Include a link to code you wrote; it’s the first thing we read.


• 5+ years of production software engineering, including substantial blockchain or DeFi work you can walk us through.


• DeFi or on-chain market work that shipped: automated market makers, staking, vaults, reward distribution, or equivalent protocol logic, in Solidity or in Rust, Cosmos, or Move. Name the protocol or chain and your part in it. Five years of production Solidity is welcome; it is not required if your DeFi work is in another stack.


• Multi-chain experience: Cosmos and EVM, IBC or bridges, or work that spans more than one execution environment.


• Comfortable operating your own work: Linux, Docker, Kubernetes or equivalent CI, testnet deployments, and monitoring.

Preferred

• Wallet, custody, or signing infrastructure: key handling, hot / warm / cold wallet flows, multi-chain transaction tracking.


• Developer tooling other engineers depend on: a CLI, SDK, indexer, or scaffold.


• Audit experience on either side: you’ve written findings, or you’ve fixed them.


• Cosmos SDK module work, CosmWasm, or IBC relayer operation.


• Teaching, conference talks, or workshops on blockchain or DeFi engineering.

First 90 Days

• A written review of Autheo’s DeFi and value-transfer surfaces: staking and fees, vault or market primitives, and cross-environment paths — what is current, what is missing, and what is at risk, agreed with the engineering leads.


• At least one protocol change (staking, vault, market primitive, or upgrade path) shipped through testnet rehearsal, with tests.


• One wallet, custody, or DevHub tooling improvement that another team can use.


• A documented IBC, bridge, or cross-environment path that a DeFi builder can follow.

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.

🌐 🚀 WHY JOIN LAUNCH LEGENDS?

• Build the core, not a side project. Protocol, DevHub, TheoID, and the Marketplace are being built and strengthened now, and your work goes straight into them.


• The DeFi Protocol Engineer seat owns on-chain market and staking logic, the paths that connect Autheo’s execution environments, and the wallet and tooling builders use in DevHub.


• Equity in Launch Legends and Autheo, plus a THEO token allocation.


• 100+ equity cofounders across 25+ countries. Remote. Direct line to the engineering leads and the Managing Directors.