Blockchain Or Web3 Solidity Defi Developer Engineer Jobs

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 nearly four years ago, 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-Zero OS with an integrated Layer-1 blockchain and complete decentralized infrastructure thast includes decentralized compute, storage, identity, and service marketplaces, as well as a Full-stack development enveronment (DevHub)-engineered for scalable enterprise adoption, developer innovation, and real-world blockchain integration.
Our Projects

• Autheo - www.autheo.com
• Autheo Team - https://www.autheo.com/teams
• Launch Legends (Parent Company) - www.launchlegends.io
• 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.
Key Features:

• Enterprise-Grade Layer-1 Blockchain - High-speed, self-securing, and cost-efficient infrastructure built for scale.
• Developer Hub & Application Marketplace - A decentralized platform where developers build, deploy, and monetize real-world apps.
• Web2-Web3 Integration - Microservices, SDKs, and governance frameworks for seamless business migration.
• Decentralized Cloud & Compute - Secure, privacy-preserving storage and AI-powered compute for next-gen applications.
• DePIN Infrastructure - On-chain networks powering real-world infrastructure ownership and resource sharing.

Traction (Testnet Launch):

• Wallet Accounts: 290,000+
• Twitter Followers: 30,000+
• Discord Members: 19,000+
• Smart Contracts Deployed: 30,000+
• Developers Registered for MVP DevHub: 7,500+

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 and salaries. Salaried compensation is expected to begin within 4 to 5 months, following our node, token sales or funding.
Role: Senior DeFi Engineer - General (with Blockchain Experience)
Autheo is building a sovereign data platform unifying petabyte-scale pipelines, federated lakehouse analytics, and 200GB/s streaming with 25μs query latencies, unbreakable encryption, and GDPR/HIPAA compliance.
As a part-time Senior DeFi Engineer - General in an equity-based cofounder role, you'll design full-spectrum DeFi solutions using Solidity, React.js, and Node.js, powering smart contracts, liquidity pools, and hybrid CEX/DEX systems across DePIN networks. This role is critical to enabling non-custodial wallets and global tokenomics at scale. If you're passionate about end-to-end DeFi and Web3, join us to shape the ecosystem layer for the next trillion-dollar decentralized economy.
Key Responsibilities:
1. DeFi Solution Development
* Build smart contracts for liquidity pools, staking, governance, and cross-chain swaps.
* Implement hybrid CEX/DEX models with API aggregations from Binance and Coinbase.
* Design token redistribution systems balancing economics and on-chain performance.
2. Scalability & Optimization
* Optimize DeFi apps for 50B+ TPS with Patricia Trie and consensus mechanisms.
* Integrate non-custodial wallets with fiat ramps and virtual card support.
* Ensure full-stack integration using React.js/Next.js for seamless dApp UIs.
3. Security & Auditing
* Embed post-quantum cryptography for unbreakable DeFi wallet and contract security.
* Conduct smart contract audits and risk assessments for global compliance.
* Generate zk-proof trails for KYC/AML and governance transparency.
4. Interoperability
* Design solutions compatible with EVM, Polkadot, and Hyperledger ecosystems.
* Implement bridges for asset transfers and liquidity routing across chains.
* Integrate oracles and off-chain APIs for hybrid DeFi operations.
5. Developer Ecosystem
* Deliver SDKs (TypeScript/Python) for rapid DeFi module deployment.
* Build self-service tools for tokenomics simulation in <5 minutes.
* Contribute open-source components for community-driven DeFi standards.
6. Leadership & Innovation
* Collaborate with primitives, infrastructure, and data teams for integration.
* Lead DeFi product reviews for scalability and user adoption.
* Mentor engineers and explore hybrid models like in-game DeFi.
* Publish at Devcon/Token2049 on general DeFi advancements.
Qualifications:
Required:
* Bachelor's/Master's in Computer Science, Engineering, or equivalent.
* 7+ years in general DeFi development with full-stack blockchain launches.
* Expertise in Solidity, React.js, Node.js, and protocols like Polkadot JAM.
* Proficiency in tokenomics, AMMs, cross-chain, and cryptographic security.
Preferred:
* Background in founding DeFi startups or P2E economies.
* Experience with Unity integrations or data privacy DeFi tools.
* Contributions to JAM Protocol or open-source liquidity models.
Soft Skills:
* Precision in end-to-end DeFi design and team leadership.
* Strong technical communication and collaboration.
* Passion for global Web3 DeFi ecosystems.
Deliverables (90 Days):
* End-to-end DeFi MVP with AMM pools and staking on testnet.
* Hybrid CEX/DEX prototype for liquidity aggregation.
* Audited tokenomics system with governance integration.
* Non-custodial wallet module with fiat ramp support.
* SDKs for zero-config DeFi operations.
* Open-source toolkit driving 100+ integrations.
* Devcon 2026 presentation on DeFi ecosystem leadership.
WHY JOIN LAUNCH LEGENDS?

• Traction with Momentum: Autheo is already gaining significant traction in the blockchain space, with rapid developer adoption, platform growth, and partnership interest.
• Cross-Industry Impact; Autheo is positioned to transform not only the Web3 ecosystem-but also Web2 and the broader technology sector-by enabling real-world business adoption of decentralized infrastructure.
• Real Innovation, Not Hype: Unlike many blockchain ventures, Autheo is focused on substance over speculation. We are building real solutions: modular fullstack infrastructure, enterprise-grade toolkits, decentralized identity, cloud, compute, and service orchestration.
• Backed by Elite Talent: You'll join a team composed of professionals from top-tier universities, Fortune 500 companies, and major blockchain platforms. Our team includes multiple PhDs and senior engineers who have launched and scaled world-class technologies.

If you're ready to redefine blockchain adoption, empower global business integration, and help shape the next generation of Web3 and developer ecosystems, we invite you to take the next step.
Let's build the future-together.