Senior BlockChain and Smart Contract Engineer - Fullstack Web3 Platform

Shape the Future of Blockchain—Bringing Business On-Chain

We are offering a unique opportunity to join Launch Legends as a part-time equity co-founder. Founded nearly four years ago, Launch Legends is pioneering the merging of Web3 blockchain technology with the next major wave of Web2 integration, bringing businesses on-chain with sophisticated Enterprise, DePIN, and DeFi organizations and projects.

This role places you at the heart of innovation, driving the development of Autheo, our cutting-edge blockchain ecosystem, which extends beyond a Layer-1 blockchain to include decentralized compute, storage, identity, and service marketplaces. Autheo is designed for enterprise adoption, Web3 integration, and scalable decentralized solutions, enabling businesses and developers to seamlessly transition into the next generation of the digital economy.

Our Projects:

• Autheo: www.autheo.com


• Launch Legends: www.launchlegends.io


• WFO (being built on Autheo): www.instagram.com/gowfotv

About Autheo

With nearly 100 equity cofounders working on the project, Autheo is pioneering a new era of blockchain adoption, solving the key challenges preventing businesses from integrating blockchain technology. Our infrastructure-first approach ensures seamless Web2-to-Web3 migration without requiring deep crypto expertise.

• Enterprise-Grade Blockchain Infrastructure – A next-gen Layer-1 blockchain providing self-securing, high-speed, and cost-efficient Web3 solutions.


• Developer Hub & Application Marketplace – A decentralized platform where developers build, deploy, and monetize real-world applications.


• Universal Web2-Web3 Integration – Seamlessly migrating businesses on-chain with microservices, SDKs, and a structured governance model.


• Decentralized Cloud & Compute Services – Powering secure, privacy-preserving storage, AI automation, and next-gen financial tools.


• DePIN (Decentralized Physical Infrastructure Networks) – Enabling real-world physical infrastructure projects on-chain, fostering decentralized network ownership, and supporting innovative resource-sharing models.

Autheo is not a retail crypto project—it is an infrastructure-first blockchain designed for real adoption, allowing businesses to migrate on-chain without needing crypto expertise.

Current Roadmap:

• Airdrop Launch: March 1, 2025


• Node Sale: April 2025


• Public Token Sale: May 2025


• Decentralized Cloud Launch: May 2025


• Decentralized ID Rollout: June 2025

Future Compensation Plans

Initially, this role is compensated through successful TGE is equity with token allocations. However, our comprehensive tokenomics model includes structured token allocations for co-founders upon completion of key milestones. Following the anticipated public token sale in January, we plan to introduce salaries alongside equity and token rewards.

Position Senior BlockChain and Smart Contract Engineer

We are seeking a Senior Blockchain Engineer to join our Layer-1 blockchain platform team, specializing in hybrid Web 2.0/3.0 integrations. This role requires expertise in designing and implementing decentralized protocols, consensus mechanisms, and cross-chain interoperability solutions. You will architect core blockchain infrastructure, lead protocol upgrades, and collaborate with front-end, backend, and mobile teams to build a scalable, secure, and developer-friendly blockchain ecosystem.

 Role / Responsibilities 

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  Design and implement Layer-1 blockchain protocols using Cosmos SDK 0.50+ and Tendermint Core 0.35+.

  
  


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  Architect EVM-compatible chains (Ethereum 1.10+), including custom precompiles and gas optimizations.

  
  


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  Develop cross-chain bridges and interoperability protocols (IBC, Axelar, Wormhole).

  
  


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  Optimize consensus algorithms (PoS, DPoS) for low-latency transaction finality (≤2s).

  
  


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  Build smart contracts in Solidity 0.8+ and integrate with CosmWasm 1.4+ for WASM-based logic.

  
  


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  Design decentralized storage solutions using IPFS 0.15+ and Filecoin for off-chain data.

  
  


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  Implement REST/GraphQL APIs and gRPC services for blockchain node interactions.

  
  


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  Lead protocol upgrades and hard forks, ensuring backward compatibility.

  
  


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  Collaborate with DevOps to deploy nodes via Kubernetes 1.25+ and automate monitoring (Prometheus/Grafana).

  
  


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  Mentor junior engineers and drive open-source contributions to ecosystem tooling.

  
  

 Required Experience 

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  5+ years in blockchain development with Layer-1/Layer-2 protocols (EVM, Cosmos SDK, Substrate).

  
  


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  Expertise in Cosmos SDK 0.50+ and Tendermint BFT consensus.

  
  


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  Proficiency in Solidity 0.8+ and Ethereum tooling (Hardhat, Foundry, ethers.js 6.0+).

  
  


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  Hands-on experience with interchain protocols (IBC, CCIP) and bridges.

  
  


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  Strong knowledge of decentralized storage (IPFS, Arweave) and p2p networking.

  
  


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  Experience with Rust 1.70+ or Go 1.20+ for blockchain runtime development.

  
  


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  Proficiency in API design (REST/OpenAPI, GraphQL, gRPC).

  
  


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  Familiarity with security audits (Slither, MythX) and formal verification tools.

  
  


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  Track record of deploying mainnet-ready protocols with ≥99.9% uptime.

  
  


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  Leadership experience in Agile/Scrum teams with CI/CD workflows (GitHub Actions).

  
  


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  Act as a protocol architect, guiding decisions on consensus, tokenomics, and governance.

  
  


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  Collaborate with front-end/mobile teams to optimize wallet/dApp integrations.

  
  


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  Advocate for open-source development and community-driven governance.

  
  


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  Balance hands-on coding with mentoring to scale the blockchain engineering team.

  
  

 Desired Experience 

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  Contributions to Cosmos Hub or Ethereum core protocol development.

  
  


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  Knowledge of zk-SNARKs/STARKs (Circom, Halo2) and privacy-preserving chains.

  
  


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  Experience with oracle networks (Chainlink 2.0+, Band Protocol).

  
  


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  Familiarity with DA layers (Celestia, EigenDA) and modular blockchain stacks.

  
  


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  Exposure to DeFi protocols (Uniswap v4, Aave v3) and NFT standards (ERC-721/1155).

  
  

 Key Technologies 

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  Languages: Python 3.8+, SQL, GraphQL  

  
  


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  Blockchain: Cosmos SDK 0.50+, Tendermint 0.35+, Ethereum 1.10+, Solidity 0.8+, CosmWasm 1.4+, IPFS 0.15+

  
  


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  Tools: Hardhat, Foundry, ethers.js 6.0+, web3.py 6.0+, gRPC 1.50+, GraphQL 16.0+

  
  


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  Infra: Kubernetes 1.25+, AWS/GCP/Azure, Prometheus 2.40+, Grafana 10.0+

  
  

This role is ideal for a blockchain veteran passionate about redefining decentralized infrastructure. Join us to build a next-gen Layer-1 platform that bridges Web 2.0 and Web 3.0 ecosystems! 🔗

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What We Offer: 

This is a unique opportunity to join a leading Web3 company and help design the future of the decentralized web. If you have the skills and experience to lead this complex product area, we want to hear from you

• Equity-based compensation as a co-founder in three projects (Launch Legends, Autheo layer-1 blockchain and disruptive social platform and WFO extreme sports affinity network).


• Token allocation in Autheo Layer-1 Blockchain


• Flexible, part-time commitment.


• Opportunity to shape and build an innovative blockchain ecosystem from the ground up.


• Collaborative and dynamic startup environment.

INNOVATIVE GROWTH & ASPIRATIONS:

We're at the frontier of technology adoption, integrating a social network with Web3, while building four synergistic networks on our blockchain to help redefine the industry's landscape.

🌐 🚀 WHY JOIN US:

Seize the chance to work alongside international co-founders in a pioneering venture with a highly differentiate layer-1 blokchain and fully integrated disruptive social platform. Elevate the user experience with us. Shape the digital future with Launch Legends!