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Ching Yen Foo

Senior Software Engineer specializing in real-time SaaS product systems

GoodnotesNanyang Technological UniversityLondon, UK5 Years ExperienceSenior LevelWorks Remote

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About

Frontend engineer with strong ownership of high-scale, real-time support product experiences at Zendesk. Particularly compelling for teams building complex browser UIs: they’ve solved ordering/correctness issues in asynchronous messaging, improved agent UX with measurable behavioral signals, led a GraphQL subscription migration that tripled connection capacity, and delivered WCAG-compliant accessibility for AI-assisted features.

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Key Strengths

  • Owned complex real-time agent messaging UI at Zendesk
  • Strong expertise in asynchronous event handling and eventual consistency
  • Improved UX with optimistic updates while preserving correctness
  • Reduced duplicated-message complaints and send-error rates
  • Data-driven product optimization using Datadog RUM frustration signals
  • Scaled frontend architecture for large enterprise accounts
  • Led frontend migration from WebSocket/sticky sessions to GraphQL subscriptions
  • Tripled concurrent connection capacity while maintaining UI responsiveness
  • Accessibility-focused implementation for screen-reader-compatible AI features
  • Deep knowledge of ARIA and WCAG-compliant browser UI design

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Experience

Software EngineerGoodnotes · May 2025 – Mar 2026
Software EngineerZendesk · Jul 2021 – May 2025
Senior Software EngineerZendesk · Jul 2021 – May 2025

Education

Nanyang Technological Universitybachelor, Computer Engineering (2021)

Awards

  • Highest Distinction - Nanyang Technological University

Skills

TypeScriptReactJavaPythonKotlinFeature flagsEvent-driven architectureGraphQLLoad testingManual testingAWSPostgreSQLPrompt engineeringNext.jsReact Native

Languages

EnglishMandarinMalay

Certifications

Vertical Institute UX Design Certificate

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Ching Yen FooSenior Software Engineer specializing in real-time SaaS product systems