Senior Full-Stack Dev

Jack is a senior full‑stack developer with 9 years of experience building SaaS products from architecture to launch. Proficient in React, Node.js, and TypeScript, he has shipped products used by hundreds of thousands of users across B2B and B2C markets. Jack turns fuzzy product requirements into clean, scalable codebases, owns the full stack from frontend to deployment, and mentors junior developers while establishing engineering best practices.

Languages Native

Fluent

Skills Front‑end : React, Next.js, TypeScript, Tailwind CSS, Redux, React Query

Back‑end : Node.js, Express, NestJS, GraphQL, REST APIs

Database

Cloud : AWS (EC2, Lambda, S3, RDS, ECS), Vercel, Docker, Terraform

Testing : Jest, Cypress, Playwright, React Testing Library

Experience Senior Full‑Stack Developer 2021 – Present – Carousell

Led development of the core product platform serving 800+ enterprise clients with a 99.9% uptime SLA.

Rebuilt the frontend from a legacy jQuery app to React + TypeScript, improving load times by 70%.

Enabled a 3× improvement in developer velocity through TypeScript and a component library adoption.

Full‑Stack Developer 2018 – 2021 – ShopBack

Built the marketplace platform from scratch using React, Node.js, and PostgreSQL.

Implemented real‑time messaging, Stripe payment processing, and Elasticsearch‑powered search.

Grew the platform from 0 to 50 000 monthly active users within 18 months.

Software Engineer 2015 – 2018 – Accenture

Delivered full‑stack solutions for banking and insurance clients, including internal tools and dashboards.

Migrated legacy systems to cloud‑native architectures on AWS, reducing infrastructure costs by 40% for three clients.

Education B.Comp. Computer Science – National University of Singapore – 2015

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