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David LuDL
Open to opportunities

David Lu

@david-lu

Senior Full-Stack Engineer with 9+ years of experience, focusing on frontend/backend and 4+ years in Solana blockchain

Japan
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What I'm looking for

I seek senior engineering roles building scalable Web3 and web applications, emphasizing security, performance, cross-team collaboration, and growth.

I’m a Senior Full-Stack Engineer with a strong track record in building and scaling web applications, APIs, and blockchain integrations. Over the past 9+ years, I’ve led end-to-end development for fintech and DeFi platforms, including on-chain smart contracts using Rust/Anchor and data-heavy frontends with Next.js. I enjoy collaborating with cross-functional teams to translate complex requirements into robust, maintainable software. I’m seeking opportunities to tackle challenging backend systems, performance optimizations, and blockchain-enabled products in a remote, globally distributed team.

Experience

Work history, roles, and key accomplishments

LI

Senior Full Stack Engineer

Lifinity

Apr 2024 - Nov 2025 (1 year 7 months)

Architected and deployed Rust/Anchor smart contracts for a DEX, implemented Merkle-tree reward distributions and price oracles, and built a Next.js frontend with end-to-end mint/redeem/swap/deposit/withdraw workflows while passing an Ottersec audit to improve contract security.

ML

Senior Full Stack Engineer

Motley Labs

Apr 2023 - Nov 2023 (7 months)

Designed and implemented a Golang data layer for NFTs and user activities, built a Next.js NFT marketplace with optimized page-loading strategies, and established CI/CD and GCP deployment pipelines while publishing a TypeScript SDK for marketplace actions.

UG

Full Stack Engineer

UGS

May 2022 - Oct 2022 (5 months)

Integrated Cardinal staking and built a Next.js staking application, created a hyperspace-based NFT indexer and synchronized marketplace actions, implemented a pool-based raffle Rust/Anchor contract with multi-winner randomization, and added notification/admin tooling.

GI

Full Stack Engineer

G Inc

Jan 2019 - Apr 2022 (3 years 3 months)

Delivered a monolithic REST API and hybrid mobile web app for a matching service using Golang and Angular Ionic, integrated payment gateway, implemented notifications with RabbitMQ, and designed AWS-based DevOps for scalable production deployments.

LA

Full Stack Engineer

Lancers

Jan 2017 - Dec 2018 (1 year 11 months)

Built multiple web and mobile projects including a collaborative artist platform (Django + Angular), a travel booking system (Laravel + Google Maps), an e-commerce site (Rails), and a React Native alarm app, implementing auth, media, and API integrations.

Education

Degrees, certifications, and relevant coursework

Fukuoka University logoFU

Fukuoka University

Bachelor's degree, Computer Science

2012 - 2016

Bachelor's degree in Computer Science completed at Fukuoka University from September 2012 to August 2016, focusing on foundational software engineering and web development topics.

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David Lu - Senior Full Stack Engineer - Lifinity | Himalayas