Joseph Tseng

Professional experience

Experience & skills

Nearly a decade of engineering experience spanning web products, marketplace and CMS platforms, embedded firmware, production tooling, quality ownership, and cross-functional delivery.

Core Engineering

TypeScript, JavaScript, React, Next.js, SvelteKit, HTML, CSS, SQL

GraphQL, Supabase, PostgreSQL, API integration, frontend architecture

Quality & Delivery

A/B testing, QA planning, feature flags, bug bash coordination, root-cause debugging

Prismic, Amplitude, Redash, Coralogix, Jira, GitHub Actions, CI/CD

2022 - 2026

Houzz | Marketplace, Lead Nurture, and 3D

Software Engineer

  • Delivered marketplace search and browse improvements across desktop and mobile web, including A/B-tested discovery experiences.

  • Built reusable Prismic CMS page patterns with GraphQL schema and resolver support for landing pages, campaigns, and event experiences.

  • Integrated frontend workflows with personalization, 3D, and external AI services while working across product, platform, backend, and data teams.

  • Improved release quality through design docs, feature flags, QA guides, bug bashes, production debugging, analytics, and release monitoring.

2020 - 2022

Chung Yung Consultant Company | Taipei

Frontend Engineer

  • Built responsive membership and administration applications using React, Next.js, TypeScript, HTML, and CSS.

  • Implemented authentication and state flows with XState, API integrations, form-driven interfaces, and PostgreSQL changes.

  • Supported GitHub-based CI/CD and GitOps deployment workflows on cloud infrastructure.

2016 - 2020

Foxconn, Mega Design Tech, and Memoright Tech | Hsinchu

Firmware & Application Engineer

  • Developed embedded firmware, memory-controller test patterns, and production application tooling using C, C++, and C#.

  • Established Ceedling unit tests for driver development to improve test coverage and reliability.