John Arnold Email & Phone Number

Redmond, WA, US

Brooklyn, New York, United States

• Contributed to the development and optimization of responsive user interfaces using React for Etsy’s e-commerce platform, improving user engagement and satisfaction.
• Developed responsive, high-performance frontend components using React, Redux, and TypeScript, integrating advanced features like lazy loading, caching, and custom hooks, which enhanced user experience and reduced load.
• Collaborated with backend engineers to design and implement RESTful APIs and GraphQL using Node.js that facilitated data exchange between the frontend and backend, ensuring reliable order processing and user.
• Implemented comprehensive testing strategies using Jest for unit testing and Cypress to end to end testing, achieving 90% test coverage and ensuring the reliability and quality.
• Utilized Agile Scrum methodologies for efficient project management while mentoring junior developers through code reviews and technical guidance.

New York, New York, United States

• Worked on the front-end development and infrastructure design for HomeFinder, helping launch the app from scratch with a cross-functional team, while implementing responsive UI and integrating Redux with React.
• Contributed to the successful launch of the BrightTALK app, participated in architecting the infrastructure, reviewed code, and took part in the migration from React to Next.js to improve performance and SEO.
• Developed and optimized front-end features using React and integrated REST APIs and GraphQL with Node.js on Clari’s Revenue Platform, enhancing visibility, forecast accuracy, and efficiency for top-tier clients like.

New York, New York, United States

• Developed Fintech web applications using HTML, CSS, and JavaScript, enhancing user interface design and improving application performance
• Gained foundational knowledge in Networking, Security, Protocols, Web server, and Cloud Computing, applying these concepts to improve application security and efficiency