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I'm a senior full-stack web engineer focused on building responsive, content-driven platforms with secure authentication and admin workflows for community and commerce contexts. I excel in React frontends and Spring Boot/Django REST APIs, delivering i18n, RBAC, and CMS/admin dashboards backed by PostgreSQL. I have strong e-commerce and payments exposure from large-scale retail systems and a payments integration testing platform, with measurable delivery impact (e.g., 60%+ admin workload reduction, 100+ active users). I collaborate closely with stakeholders to scope MVPs, iterate via CI/CD, and ship maintainable features on predictable timelines. I thrive in Agile environments and enjoy mentoring teammates to sustain quality and velocity.…I'm a senior full-stack web engineer focused on building responsive, content-driven platforms with secure authentication and admin workflows for community and commerce contexts. I excel in React frontends and Spring Boot/Django REST APIs, delivering i18n, RBAC, and CMS/admin dashboards backed by PostgreSQL. I have strong e-commerce and payments exposure from large-scale retail systems and a payments integration testing platform, with measurable delivery impact (e.g., 60%+ admin workload reduction, 100+ active users). I collaborate closely with stakeholders to scope MVPs, iterate via CI/CD, and ship maintainable features on predictable timelines. I thrive in Agile environments and enjoy mentoring teammates to sustain quality and velocity.

Yansong Chen

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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I'm a senior full-stack web engineer focused on building responsive, content-driven platforms with secure authentication and admin workflows for community and commerce contexts. I excel in React frontends and Spring Boot/Django REST APIs, delivering i18n, RBAC, and CMS/admin dashboards backed by PostgreSQL. I have strong e-commerce and payments exposure from large-scale retail systems and a payments integration testing platform, with measurable delivery impact (e.g., 60%+ admin workload reduction, 100+ active users). I collaborate closely with stakeholders to scope MVPs, iterate via CI/CD, and ship maintainable features on predictable timelines. I thrive in Agile environments and enjoy mentoring teammates to sustain quality and velocity.…I'm a senior full-stack web engineer focused on building responsive, content-driven platforms with secure authentication and admin workflows for community and commerce contexts. I excel in React frontends and Spring Boot/Django REST APIs, delivering i18n, RBAC, and CMS/admin dashboards backed by PostgreSQL. I have strong e-commerce and payments exposure from large-scale retail systems and a payments integration testing platform, with measurable delivery impact (e.g., 60%+ admin workload reduction, 100+ active users). I collaborate closely with stakeholders to scope MVPs, iterate via CI/CD, and ship maintainable features on predictable timelines. I thrive in Agile environments and enjoy mentoring teammates to sustain quality and velocity.

Available to hire

I’m a senior full-stack web engineer focused on building responsive, content-driven platforms with secure authentication and admin workflows for community and commerce contexts. I excel in React frontends and Spring Boot/Django REST APIs, delivering i18n, RBAC, and CMS/admin dashboards backed by PostgreSQL. I have strong e-commerce and payments exposure from large-scale retail systems and a payments integration testing platform, with measurable delivery impact (e.g., 60%+ admin workload reduction, 100+ active users).

I collaborate closely with stakeholders to scope MVPs, iterate via CI/CD, and ship maintainable features on predictable timelines. I thrive in Agile environments and enjoy mentoring teammates to sustain quality and velocity.

Skills

Experience Level

Expert

Expert

Expert

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Expert

Expert

Expert

Expert

Expert

Expert

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Expert

Expert

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Expert

Intermediate

Language

English

Advanced

Chinese

Fluent

Work Experience

Senior Full Stack Developer (Intern) at West Christchurch Chinese Methodist Church

February 1, 2025 - May 1, 2025

Sole developer delivering a bilingual, responsive community portal and admin CMS end-to-end—from requirements to production and ongoing maintenance—reducing weekly admin workload by 60%+ and serving 100+ members after UAT approval. Implemented full-stack i18n portal and admin dashboard with secure authentication and RBAC; Spring Boot REST APIs (11 modules, 48 tables), React frontend, Tailwind CSS, automated PDF bulletins, Cloudflare R2 file storage, and PostgreSQL persistence. Added Cypress end-to-end testing and PageSpeed optimizations for cross-device performance. Established CI/CD (GitHub Actions) with automated deployment to Heroku, SSL, and reCAPTCHA, maintaining a steady development cadence.

Senior Full Stack Developer at JOYY Inc.

April 1, 2021 - August 1, 2022

Built a Groovy-driven, zero-deploy mock framework enabling flexible request matching without code changes; accelerated end-to-end integration testing by ~80% with stable runtime performance. Engineered a modern automation framework with data‑driven authoring, tag-based orchestration, parallel runners, step‑level logs, and rich reports on Jenkins, reliably running 8,000+ daily tests. Implemented analytics on flakiness, coverage, and duration integrated into Kanban to speed root‑cause isolation and shorten feedback loops across services. Independently delivered platform features end‑to‑end; trained 15+ testers and mentored 2 graduates to sustain development and maintenance.

Senior Software Engineer at Vipshop

August 1, 2015 - August 1, 2020

Unified project lifecycle workflows via an internal platform adopted by 1,100+ users across 6,000+ projects/year, lifting on-time release rate to 80%+. Delivered a performance testing platform with load orchestration, metrics ingestion, and automated reporting; reduced performance testing time by 80%+. Built an API-driven test data orchestration platform for complex e-commerce flows; cut data prep from hours to minutes and improved reliability. Standardized quality processes/tools (workflows, dashboards, benchmarks, data prep), improving collaboration and release confidence.

QA Leader at Vipshop

April 1, 2013 - July 1, 2015

Established delivery governance and quality gates across order fulfillment and inventory (risk-based planning, traceability, release cadence, defect SLAs, RCA). Built CI/CD pipelines and branch workflows with PR checks and artifact versioning (Jenkins + Git), accelerating feedback and predictable releases. Scaled automation across critical business flows; improved regression speed and system reliability. Improved order fulfillment stability and data accuracy; reduced overselling by 90%+ and supported >100B annual revenue.