Tahseen Malik

Seasoned JavaScript engineer (10+ years) with a product mindset and a track record of designing and building complex user-centred apps.

Full Stack Engineer (2025-05 – 2026-02)

React, Typescript, Next.js, Tailwind, Node.js, Postgres, and AWS

• Spearheaded collaboration with product and design to prioritise, build, and deploy AI features, reducing task completion time by 65% within 3 months.
• Established a robust CI/CD pipeline using GitHub Actions, reducing release times to minutes.
• Reduced code review time by 50% per week by deploying new systems and processes, resulting in productivity gains for the engineering team.
• Deployed serverless solutions with AWS Lambda to support the user base with fast API response times.

Frontend Engineer at Credo Therapies (2024-06 – 2025-03)

React, React Native, Expo, Typescript, Next.js, Tailwind, and Storybook

• Engineered an accessible, reusable cross-platform component library for the web and React Native, improving UI consistency and reducing development time by 40%.
• Transitioned development in-house and led a complete rewrite of the web and mobile app from Vue/Ionic to React Native, reducing vendor dependence and improving maintainability.
• Mentored 2 junior developers, boosting their technical competency and code quality through regular pair-programming and hands-on reviews.

Frontend Engineer at Moodys (2022-05 – 2024-05)

React, Typescript, CSS, Node.js, Playwright, and Storybook

• Drove the delivery of high-impact features for Moody's Portfolio management app, accelerating decision-making for asset managers.
• Orchestrated code migration to TypeScript, standardising types and reducing defect rates through stronger compile-time checks.
• Designed and developed a modular, reusable data grid component consumed by all teams, accelerating feature delivery and improving cross-project UI consistency.

Frontend Engineer at Hopin (2021-05 – 2022-03)

React, Typescript, Next.js, CSS, Node.js, and Cypress

• Migrated the event's dashboard from Ruby on Rails to a Next.js micro-frontend, delivering a modular architecture that shortened release cycles and enhanced user performance.
• Collaborated with design and product to build and run A/B tested UI experiments designed to reduce churn, drive engagement, and conversion for self-serve users.

Frontend Engineer at Applied Blockchain (2018-03 – 2021-04)

React, React Native, Redux, Typescript, Web3, GraphQL, Node.js, and Playwright

• Led development of the company's two most significant Web3 projects, delivering scalable, high-performance apps on tight deadlines — including a real-time trading application for a major enterprise.
• Developed a customisable Blockchain explorer for private Ethereum networks with role-based access, saving teams weeks of development time per project.

Full Stack Engineer at CyberLion (2013-12 – 2018-01)

React, Angular, Redux, JavaScript, Node.js, Python, and Postgres

• Delivered multiple full-stack web and mobile apps using modern JavaScript, reducing bug rates and improving user satisfaction through comprehensive testing and continuous integration.
• Architected and maintained a shared UI component library, accelerating feature delivery and enforcing consistent accessibility and styling standards across projects.