Wesley Wong

Staff Software Engineer at Visa · AI Developer Experience & UX Engineering

Hi, I'm Wesley. I engineer AI-native systems with a designer's eye.

I build AI-powered developer tools, frontend platforms, and accessible product experiences - from an AI prototyping platform adopted by 5,000+ Visa employees, to NFC payment demos on global stages, to an AI travel agent built end to end.

See my workRésumé (opens in a new tab)

Now

Staff Software Engineer

Visa · Currencycloud

  • Frontend platform architecture for Backoffice 2.0
  • Cosmos Code, an internal VS Code AI assistant
  • Avori, an AI travel agent, outside of work

Austin, TX

Work

Selected work

employees on Blitz Code
5K+
lines of code generated
10M+
customers at Payments Forum 2025
2,000+
co-inventor, inclusive design
Patent

More work

Approach

How I work

  1. Ship the interface, not just the prototype.

    I care about systems that survive real users, event pressure, and cross-functional ambiguity.

  2. Make complexity feel usable.

    My work often sits between AI, payments, design systems, and product operations.

  3. Build from zero when needed.

    From Flutter apps to AI pipelines to enterprise platforms, I like owning the full path from idea to shipped experience.

Experience

Where I've built

Work experience

  1. Visa

    Austin, TX

    Staff Software Engineer

    Jun 2026 – Present

    • Lead frontend platform architecture for Backoffice 2.0 at Currencycloud, a Visa solution - establishing micro-frontend integration contracts, shared host patterns, and module ownership and release standards across product teams.
    • Develop Cosmos Code, an internal VS Code AI assistant, with workflows for module scaffolding, UI generation, validation, and developer onboarding - human approval built into the developer experience.
    • Partner with Product, Design, Security, and Infrastructure on secure module delivery, authentication boundaries, and design-system adoption to keep developer experiences reliable and production-ready.
    Senior Design Engineer

    Feb 2025 – Jun 2026

    • Designed and built the end-to-end collaboration and permission system for Visa Blitz Code - the internal AI prototyping platform adopted by 5,000+ employees, generating 6,000+ prototypes and 10M+ lines of code in its first two months - including a backend permission-resolution engine aggregating direct, folder, and nested shares, and a frontend “effective role” abstraction with progressive disclosure.
    • Refactored Blitz Code's global state store into per-project isolated state maps, eliminating an entire class of cross-project bugs (loading conflicts, state leakage) at the root cause rather than patching symptoms.
    • Architected the Tap NFC demo platform (Tap to P2P Send, Tap to Pay) used by 2,000+ external customers at Visa Payments Forum 2025 and featured at Stripe Sessions, Visa Investor Day, and Money 20/20 - a three-layer system (NFC integration, business logic, presentation) that enabled overnight production hotfixes without UI regressions during the live event.
    Design Engineer

    Aug 2021 – Feb 2025

    • Led a unified code-integration system across the Visa Product Design System's React, Angular, Flutter, and CSS libraries, powering every component page on design.visa.com - with a priority-based multi-layer state sync (URL / session / client) for deep linking, persistence, and shareability without conflicts.
    • Drove a 60% increase in user satisfaction for Tap to Phone accessibility through a week-long user-testing session with people with disabilities - translating observed gaps into WCAG-compliant voiceover, vibration, and gesture changes that let visually impaired users transact independently.
    Show 6 more
    • Contributed to the public launch of Visa's open-source design system and built the icons page on design.visa.com with Astro, React, and Nano Stores.
    • Built scalable frontends for fintech pilot programs, including Visa's e-HKD pilot with the Hong Kong Monetary Authority, HSBC, and Hang Seng Bank, and led development of the Visa Digital Enablement demo in Flutter - driving client discussions and new sales-pipeline opportunities.
    • Enhanced Visa's Flutter component library with enterprise interaction patterns (nested / indeterminate states) and accessibility improvements, and designed a shared interaction service layer for the Angular library - replacing per-component logic with a single source of truth.
    • Co-invented a patent using haptic feedback to make mobile payments usable and secure for people with visual impairments.
    • Directed the Visa Digital Commerce App revamp, demoed to industry clients at Visa Payments Forum (2,300+ attendees) and DPS User Conference.
    • Led cross-functional engineering with Equinox, PAX, Product, and Design to deliver multi-language Visa Installments experiences on POS terminals.

  2. ASUS

    Taipei, Taiwan

    Front-End Developer

    Jul 2020 – Jun 2021

    • Delivered features for Armoury Crate, used by millions of ROG and TUF users worldwide - building and maintaining real-time device interfaces for RGB lighting, touch panel, and key mapping.
    • Developed features for wireless keyboards (M601, Claymore II), including power management and real-time status monitoring.

  3. Advantech

    Taipei, Taiwan

    Front-End Intern

    Jul 2019 – Aug 2019

    • Built a water-treatment management dashboard with Grafana, AngularJS, and SVG.js for real-time industrial data visualization; presented at Taipei International Industrial Automation Exhibition 2019. Summer Intern Excellence Award.

  4. 創造力網頁設計

    Taichung, Taiwan

    Frontend Developer

    Jun 2018 – Jul 2018

    • Rebuilt the official website for a furniture company in close collaboration with the design team.

Startups & ventures

  1. Avori

    Engineer (AI / Full-Stack)

    Apr 2026 – Present

    • Building an AI-native travel planner end to end: a Flutter app for iOS and Android and a NestJS/TypeScript backend on PostgreSQL (Prisma), Redis, and GCP.
    • Architected a multi-stage LLM planning-and-repair pipeline that pairs model reasoning with deterministic checks for venue hours, routing, deduplication, and schedule feasibility - every itinerary is verified before it reaches the user.
    • Designed tiered model routing across OpenAI and Gemini, plus real-time generation streaming over WebSocket (Socket.IO) with Redis and BullMQ - interrupted sessions reconcile against a server snapshot and resume without losing progress.

  2. Stealth Startup

    Founding Engineer

    Apr 2026 – Nov 2026

    • Built an autonomous executive travel operations platform for principals and their teams - an AI end-to-end system, from agent orchestration to product surface.

  3. Youmi

    Co-Founder & Founding Engineer

    Jul 2024 – Apr 2026

    • Co-founded an AI-powered travel-planning product focused on itinerary generation and discovery.
    • Led end-to-end engineering: Flutter mobile app, NestJS backend, and a planning-first AI pipeline with SSE streaming, Redis, and BullMQ.

Stack

Tools I reach for

Frontend Architecture

  • React
  • TypeScript
  • Next.js
  • Astro
  • Angular
  • Vite
  • Zustand
  • Redux (Thunk, Saga)
  • TanStack Query
  • Micro-frontends
  • Design Systems
  • Component Architecture
  • Accessibility (WCAG)
  • Responsive Design
  • Google Maps Platform
  • Mapbox

AI Systems

  • LLM Orchestration
  • Agentic Pipelines
  • Prompt Engineering
  • GPT / Gemini Integration
  • Tiered Model Routing
  • Intent Classification
  • Real-time Streaming
  • AI-driven Product Development

Backend

  • Node.js
  • NestJS
  • Express
  • FastAPI
  • PostgreSQL
  • Prisma
  • Redis
  • BullMQ
  • WebSockets (Socket.IO)
  • GraphQL
  • REST APIs
  • MongoDB
  • Firebase
  • GCP

Mobile

  • Flutter
  • React Native
  • Kotlin
  • NFC Integration

Snapshots

Along the way

  • Visa Payments Forum · 2026
  • Stripe Sessions · 2026
  • Visa Payments Forum · 2025
  • Visa Payments Forum · 2025
  • Team dinner, research week · Dec 2023
  • Team dinner, research week · Dec 2023
  • Halloween at Visa · 2023
  • Halloween at Visa · 2023
  • Visa Global Design Engineering team building
  • ASUS · 2020
  • ASUS new-hire class · 2020
  • Advantech booth · 2019
  • Advantech intern team award · Aug 2019
  • Advantech · 2019
  • Creatop internship · 2018

About

Behind the work

Wesley at the Tap to Everything booth at Visa Payments Forum 2026, holding demo cards
At the Tap to Everything booth · Visa Payments Forum 2026

I started at the edge of design systems, accessibility, and interactive demos - then moved deeper into product engineering, AI workflows, and full-stack systems. My favorite work sits in the messy middle: turning ambiguous ideas into usable products that can survive real users, real events, and real business pressure.

Outside of work

Outside of work, I'm usually exploring restaurants around Austin, playing table tennis or badminton, working on my lawn, or taking care of my pet fancy mice and satin mice. I like products with personality - and I try to bring that same sense of craft into the systems I build.

Languages

Chinese (native) · English (professional)

Education

  • Johns Hopkins Whiting School of Engineering

    Certificate, Applied Generative AI & Agentic AI

    2026 – Present · Online program

  • Coursera

    Google UX Design Certificate

    2024

  • Stevens Institute of Technology

    M.S. Computer Science

    2018 – 2020

  • Highline College

    Certificate, Front-End & Back-End Web Development

    2017 – 2018

  • National Kaohsiung Normal University

    B.S. Mathematics

    2012 – 2016

Archive

Earlier experiments

Hackathon builds and side projects from earlier years - where the map-based, real-time product instincts started.

Contact

Let’s build something.

Open to conversations about AI product systems, frontend architecture, and building from zero.

wesleywong16838@gmail.com
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