Open to opportunities

Ken Chen

@kenchen

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Senior full‑stack engineer focused on building scalable, data‑driven web platforms.

Finland

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What I'm looking for

I seek roles building scalable, data‑driven web platforms with strong cross‑functional collaboration, performance focus, and opportunities to mentor engineers.

I am a senior full‑stack engineer with deep experience delivering reliable, scalable web platforms that combine clean frontend experiences with robust backend systems. I turn complex ideas into maintainable code and collaborate closely with design and product teams to ship impactful features.

At Enterpret I designed and optimized data pipelines, implemented real‑time alerting, built AI/ML integration layers for feedback classification, and improved backend performance with Redis caching and query tuning. Previously, I led development of a real‑time product editor, optimized site performance with code‑splitting and lazy loading, and introduced logging and monitoring to surface production issues faster.

I mentor developers, improve code review practices, and prioritize secure multi‑tenant architectures and role‑based access controls. I seek to continue building data‑driven products where performance, reliability, and strong cross‑functional collaboration matter.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

Enterpret

Feb 2021 - Present (5 years 4 months)

Designed and optimized data pipelines to ingest, clean, categorize and store feedback for fast querying, implemented real-time alerting and AI/ML integration layers, and improved backend performance with Redis caching and query tuning to increase analytics reliability.

Python Redis GraphQL REST APIs PostgreSQL AWS SRE

Senior Full Stack Engineer

Papier Ltd

Aug 2017 - Dec 2020 (3 years 4 months)

Led development of a custom real-time product editor and APIs ensuring data consistency between frontend and printing systems, improved database queries and caching to reduce API latency and cut initial load times by over 15%.

React Redux PostgreSQL Caching Sentry Performance Optimization

Full Stack Developer

Telia

Nov 2015 - Jul 2017 (1 year 8 months)

Integrated APIs and real-time data streams for network status and billing dashboards, refactored legacy frontend modules into reusable components and optimized API payloads and caching to reduce response times.

JavaScript Refactoring API Integration Caching Performance Tuning UX collaboration

Education

Degrees, certifications, and relevant coursework

University of Helsinki

Bachelor of Science, Computer Science

2011 - 2015

Completed a Bachelor of Science in Computer Science with coursework and projects focused on software development, web platforms, and data-driven applications.