William Turnbull

Senior Software Engineer (Founding)

Magic Eden

Nov 2021 - Current (4 years 8 months)

• Magic Eden is the leading NFT marketplace and the #1 Bitcoin dApp, backed by Sequoia, Paradigm, and Lightspeed. • Architected and implemented full-stack trading experiences across web and mobile, leading to 3x user growth and powering billions in transaction volume using React, TypeScript, Next.js, Node.js and Golang. • Spearheaded the development of Magic Eden's cross-platform mobile wallet with React Native and Expo, optimizing app load times by 40% and boosting retention on Android/iOS by 25%. • Built highly performant, blockchain-integrated user flows by integrating smart contract APIs and optimizing frontend rendering and hydration strategies. • Developed internal tooling libraries in TypeScript and created a scalable component

Senior Full Stack Engineer

Nike

Sep 2016 - Oct 2021 (5 years 2 months)

• Worked on Nike's digital transformation initiatives across e-commerce, retail logistics, and analytics platforms. • Led the end-to-end development of web and mobile tools for inventory planning, order management, and consumer analytics using React, Java, Spring Boot, and AWS. • Modernized legacy monoliths into modular microservices with Spring Cloud and Node.js, reducing service downtime and deployment cycles by 60%. • Engineered dynamic UIs with Next.js and React Hooks for Nike's internal analytics dashboard, used globally by 5K+ merchandisers and demand planners. • Built scalable GraphQL and REST APIs to power seamless real-time updates across multiple data sources and frontends. • Partnered with data science teams to integrate ML

Software Engineer

Smartsheet

Sep 2014 - Aug 2016 (2 years)

• Smartsheet is a leading SaaS platform for collaborative work management. • Contributed to the core backend and frontend systems powering Smartsheet's real-time collaboration features, using Java, Spring, React, and AWS. • Designed and implemented RESTful APIs and modular service layers, improving system reliability and supporting integrations with enterprise tools. • Built internal tools and front-end components for enterprise clients, increasing onboarding speed and customization capability by 30%. • Refactored key areas of monolithic codebases into scalable microservices and improved code maintainability by enforcing clean architecture principles. • Partnered with product managers and designers to release features aligned with cus

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SENIOR SOFTWARE ENGINEER

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