Senior DeFi Engineer - Infrastructure (with Blockchain Experience)

Launch Legends•Cheyenne, WY

About The Position

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. 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 - Infrastructure in an equity-based cofounder role, you’ll design scalable DeFi backends using Node.js, Scala, and Kubernetes, powering liquidity aggregators, cross-chain routers, and order books across DePIN networks. This role is critical to enabling sub-millisecond finality and post-quantum signatures at scale. If you’re passionate about DeFi infrastructure and Web3, join us to shape the backbone layer for the next trillion-dollar decentralized economy.

Requirements

Bachelor’s/Master’s in Computer Science, Engineering, or equivalent.
7+ years building DeFi infrastructure with aggregators, bridges, or oracles.
Expertise in Node.js, Scala, Go, and tools like AWS, Docker, RabbitMQ.
Proficiency in cross-chain mechanisms, liquidity protocols, and security audits.

Nice To Haves

Background in Polkadot/Substrate contributions or enterprise DeFi networks.
Experience with open-source bridges or oracle decentralization.
Contributions to Axelar/Wormhole standards or patents.

Responsibilities

DeFi Infrastructure Architecture Build liquidity aggregators, routers, and order books for DAG + BFT consensus.
Implement bridges and relayers for 20+ chain asset transfers with sub-millisecond finality.
Design oracle networks for tamper-proof feeds and MEV-resistant DeFi operations.
Scalability & Optimization Optimize backends with CQRS, PostgreSQL sharding, and Kubernetes for billions of transactions.
Integrate KYC/AML-compliant fiat ramps while preserving non-custodial DeFi principles.
Ensure 50B+ TPS scalability with distributed systems and consensus algorithms.
Security & Monitoring Embed post-quantum signatures for unbreakable DeFi infrastructure security.
Develop anomaly detection tools and automated audits for real-time risk mitigation.
Generate zk-proof trails for compliance and infrastructure governance.
Interoperability Design infra compatible with Ethereum, Solana, Polkadot, and Cosmos ecosystems.
Implement high-throughput relayers for seamless cross-chain liquidity pooling.
Integrate CEX APIs like Binance for hybrid custodial/decentralized execution.
Developer Ecosystem Deliver SDKs (Node.js/Go) for single-command infra deployments.
Build self-service consoles for DeFi backend scaling in <5 minutes.
Create sandbox environments for rapid infrastructure testing.
Leadership & Innovation Collaborate with DeFi primitives, data, and AI/ML teams for integration.
Lead infrastructure reviews for reliability and performance.
Mentor engineers and contribute to open-source DeFi infra components.
Publish at Consensus/SBC on DeFi infrastructure innovations.