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I'm a senior full stack engineer focused on building reliable, scalable, and well-designed web platforms. I have experience in both frontend and backend development, delivering data-driven products and interactive user experiences. I enjoy turning complex ideas into clean, maintainable code and collaborating closely with design and product teams to ship features that make a real impact.…

Ken Chen

AI Engineer, Full Stack Developer, Back-End Developer, +4

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I'm a senior full stack engineer focused on building reliable, scalable, and well-designed web platforms. I have experience in both frontend and backend development, delivering data-driven products and interactive user experiences. I enjoy turning complex ideas into clean, maintainable code and collaborating closely with design and product teams to ship features that make a real impact.…

Available to hire

I’m a senior full stack engineer focused on building reliable, scalable, and well-designed web platforms. I have experience in both frontend and backend development, delivering data-driven products and interactive user experiences.

I enjoy turning complex ideas into clean, maintainable code and collaborating closely with design and product teams to ship features that make a real impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Senior Full Stack Engineer

February 1, 2021 - November 7, 2025

Developed AI/ML integration layers to classify or cluster feedback, surface latent topics, and surface real-time insights for stakeholders. Optimized backend performance with Redis caching and query tuning, improving analytics load time and reliability. Implemented secure multi-tenant architecture and role-based access controls across APIs and frontend routes.

Full Stack Developer at Papier Ltd

December 1, 2020 - December 1, 2020

Full Stack Developer at Telia

July 1, 2017 - July 1, 2017

Refactored legacy frontend modules into reusable components, improving consistency across internal tools. Worked closely with designers and product managers to refine UX flows for Telia's online self-service portal.

Full Stack Engineer at Paper Ltd

December 1, 2020 - December 1, 2020

Full Stack Engineer at Papier Ltd

December 1, 2020 - December 1, 2020

Senior Full Stack Engineer at Papier Ltd

December 1, 2020 - December 1, 2020

Led development of the custom product editor, enabling real-time personalization for notebooks, cards, and planners. Designed APIs to handle real-time updates for the online editor, ensuring consistent data between frontend and printing systems. Improved site performance via code-splitting and lazy loading, reducing initial load times by over 15%. Added logging and monitoring with Winston and Sentry to identify production issues faster. Mentored junior developers and promoted better collaboration across teams.

Senior Full Stack Engineer

February 1, 2021 - November 13, 2025

Designed and optimized the data pipeline: ingest raw feedback data, cleaning, normalization, categorization, and storage for fast querying. Implemented real-time alert mechanisms to notify stakeholders of emerging issues.

Senior Full Stack Engineer at Papier Ltd

December 31, 2020 - December 31, 2020