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I'm Trista Lin, a Senior Frontend Engineer with 4+ years of experience, specializing in React and TypeScript. I build high-performance, scalable user interfaces and have a track record of optimizing Core Web Vitals and leading CI/CD initiatives to deliver reliable, revenue-protecting features. I thrive in cross-functional teams, mentor junior developers, and care deeply about clean code and UI/UX best practices. Based in London with full right to work in the UK, I’m eager to contribute to ambitious products and collaborate to ship accessible, responsive frontend experiences.…I'm Trista Lin, a Senior Frontend Engineer with 4+ years of experience, specializing in React and TypeScript. I build high-performance, scalable user interfaces and have a track record of optimizing Core Web Vitals and leading CI/CD initiatives to deliver reliable, revenue-protecting features. I thrive in cross-functional teams, mentor junior developers, and care deeply about clean code and UI/UX best practices. Based in London with full right to work in the UK, I’m eager to contribute to ambitious products and collaborate to ship accessible, responsive frontend experiences.

Trista Lin

Front-End Developer, Web Developer, Full Stack Developer, +4

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I'm Trista Lin, a Senior Frontend Engineer with 4+ years of experience, specializing in React and TypeScript. I build high-performance, scalable user interfaces and have a track record of optimizing Core Web Vitals and leading CI/CD initiatives to deliver reliable, revenue-protecting features. I thrive in cross-functional teams, mentor junior developers, and care deeply about clean code and UI/UX best practices. Based in London with full right to work in the UK, I’m eager to contribute to ambitious products and collaborate to ship accessible, responsive frontend experiences.…I'm Trista Lin, a Senior Frontend Engineer with 4+ years of experience, specializing in React and TypeScript. I build high-performance, scalable user interfaces and have a track record of optimizing Core Web Vitals and leading CI/CD initiatives to deliver reliable, revenue-protecting features. I thrive in cross-functional teams, mentor junior developers, and care deeply about clean code and UI/UX best practices. Based in London with full right to work in the UK, I’m eager to contribute to ambitious products and collaborate to ship accessible, responsive frontend experiences.

Available to hire

I’m Trista Lin, a Senior Frontend Engineer with 4+ years of experience, specializing in React and TypeScript. I build high-performance, scalable user interfaces and have a track record of optimizing Core Web Vitals and leading CI/CD initiatives to deliver reliable, revenue-protecting features.

I thrive in cross-functional teams, mentor junior developers, and care deeply about clean code and UI/UX best practices. Based in London with full right to work in the UK, I’m eager to contribute to ambitious products and collaborate to ship accessible, responsive frontend experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Frontend Developer(React) at BoniO.co

May 1, 2025 - October 26, 2025

Shipped multiple ReactJS-based SPA web applications, accelerating feature delivery by 25% and enhancing the user experience, contributing to core revenue streams. Built GitHub Actions CI pipelines, reducing deployment time and pull request turnaround by 50% and cutting ~10% of manual work costs. Improved Core Web Vitals by preloading external resources and lazy-loading non-essential JS, reducing page load time by 40% and decreasing user drop rates by ~10%. Optimised the monitoring system using Rollbar, enabling swift identification of root causes and prompt issue resolution, resulting in a ~50% increase in error resolution speed and a ~50% reduction in maintenance costs. Developed a reusable UI component library with Styled-Components and Storybook, reducing duplicated code by 40% and increasing development speed for new features by 30%. Led cross-team knowledge-sharing on performance tuning and modern tooling, improving collaboration efficiency and reducing onboarding time for new dev

Frontend Developer at BoniO.co

October 1, 2020 - May 1, 2025

Led performance optimization using code-splitting and lazy-loading, reducing page load times by 40% and bounce rates by 10%, protecting revenue-critical flows. Built a reusable UI library with Styled-Components and Storybook, cutting redundant code by 40% and accelerating feature delivery by 30%. Integrated Next.js for SEO-critical modules and managed app state with Zustand, Redux, and GraphQL (Relay). Established a testing culture with Jest and React Testing Library, achieving 80%+ code coverage and 99.9% uptime for core user journeys. Implemented GitHub Actions CI/CD pipelines and leveraged Copilot/Cursor to automate boilerplate refactoring, halving deployment time. Delivered 30+ major features in Agile/Scrum sprints; mentored 3 junior developers and optimized Rollbar workflows to boost bug resolution speed by 50%.

Frontend Trainee at AppWorks School

April 1, 2020 - September 1, 2020

Built React web apps using JavaScript, REST APIs, and Firebase during a 6-month intensive program. Collaborated with backend teams on an e-commerce platform and hosted JavaScript tech meetups.

Marketing Intern at Pinkoi

September 1, 2019 - October 26, 2025

Increased followers on Facebook (900K) and LINE@(30K) exceeding Q1 goal; analyzed performances on social media by tracking data from Google Analytics.

Marketing Intern at Pinkoi

November 1, 2018 - September 1, 2019

Data-Driven Growth: Leveraged Google Analytics to track user engagement and optimize campaign performance, contributing to a 50% follower growth on major social platforms (Facebook/LINE). Cross-Functional Mindset: Developed a strong foundation in user behavior analysis and SEO principles, informing frontend architecture decisions.