Open to opportunities

Marquis Jones

@marquisjones

Message

Full-Stack Engineer specializing in blockchain infrastructure and dApp development.

United States

Message

What I'm looking for

I am looking for opportunities that foster innovation in blockchain technology, encourage collaboration, and offer avenues for professional growth.

As a Full-Stack Engineer with a specialization in blockchain infrastructure and decentralized application development, I have a proven track record of building high-performance Web3 systems. My expertise lies in utilizing Rust and Solidity to create secure smart contracts and DeFi protocols, ensuring that the applications I develop are both scalable and reliable.

Throughout my career, I have successfully integrated various blockchain technologies, including Ethereum and Solana, into decentralized applications. My focus on security audits, gas optimization, and agile collaboration has allowed me to deliver robust solutions that meet the demands of the rapidly evolving blockchain landscape. I am passionate about leveraging my skills in modern web technologies to create innovative and efficient decentralized applications.

Experience

Work history, roles, and key accomplishments

Full Stack Blockchain Engineer

Altoros

Jan 2023 - Present (2 years 7 months)

Developed decentralized applications (dApps) using Rust and the Rocket framework, integrating with Ethereum and Solana networks to deliver scalable and secure blockchain solutions. Built and maintained smart contracts in Solidity and Rust, implementing token standards (ERC-20, ERC-721) and DeFi protocols with a strong emphasis on contract security and gas efficiency.

Rust Ethereum Solana Solidity DeFi GraphQL RESTful APIs PostgreSQL MongoDB Web3.js React JWT RBAC Docker GitHub Actions)AWS Jest Supertest Agile

Blockchain & Smart Contract Developer

Consensys

Jan 2021 - Present (4 years 7 months)

Designed and developed secure smart contracts in Solidity (EVM) and Rust (Solana/Sealevel), implementing token standards (ERC-20, ERC-721) and complex DeFi protocols with a focus on modularity and composability. Built high-performance blockchain nodes using Rust (Substrate, NEAR Protocol) and Go (Cosmos SDK), improving consensus performance and network transaction throughput.

Solidity EVM Rust Solana Sealevel DeFi Substrate NEAR Protocol Cosmos SDK React Web3.js MetaMask REST APIs GraphQL Kafka RabbitMQ Docker Kubernetes GitHub Actions)Terraform Foundry Hardhat

Software Engineer

Unchained

Jan 2016 - Present (9 years 7 months)

Built decentralized trading platforms using Rust (Solana, NEAR) and Node.js, supporting low-latency on-chain order execution and real-time DeFi analytics. Developed scalable blockchain indexers using The Graph and SubQuery, alongside Apollo-based REST/GraphQL APIs to aggregate trade, pool, and NFT metadata for high-traffic dashboards.