Resume | Stephen Chen

Stephen Chen

SENIOR SOFTWARE ENGINEER

Senior Software Engineer with 11+ years of experience developing and optimizing large-scale web and mobile apps. Expert in React, React Native, Next.js, Node.js, TypeScript, and Go, with strong proficiency in AWS, GCP, cloud-native architectures, and microservices. Skilled in implementing high-performance frontend and mobile experiences, and building robust APIs using RESTful APIs and GraphQL, deploying containerized services with Docker and Kubernetes. Adept at driving CI/CD automation, improving system reliability, and delivering scalable, maintainable solutions across diverse industries and platforms.

TECHNICAL SKILLS

Programming Language

JavaScript, TypeScript, Go, HTML, CSS, Swift, Objective-C, Kotlin, Java

Frontend Web & UX/UI Design

React, Next.js, Redux, Zustand, MobX, Tailwind CSS, Material UI, Webpack, Babel, Figma

Mobile App Development

React Native, Expo, Turbo Modules, Fabric, Xcode, Android Studio, SwiftUI, Jetpack Compose

Backend & API Development

Node.js, Express, Go, REST APIs, GraphQL, WebSocket

Databases

MySQL, PostgreSQL, MongoDB, SQLite, AsyncStorage

Testing & QA

Jest, Detox, Mocha, Chai, Postman, Appium, XCTest, Espresso

Version Control & CI/CD

Git, GitHub Actions, Jenkins, Bitrise, Fastlane

Cloud Services

GCP, Firebase (Firestore, FCM), AWS, Azure, APNs

WORK EXPERIENCE

Boston Consulting Group

Management Consulting Firm

Senior Software Engineer
May 2022 - Present

Full Stack Web App Development

Developed modern full stack web apps, enhanced product quality through testing, improved development and deployment workflows, and helped build scalable systems for growing business needs.

Developed high-performance web apps for clients, delivered client-facing analytics dashboards that visualize operational KPIs, and rebuilt legacy tools into a unified modern platform using React, Next.js, Node.js, TypeScript, SSR/ISR, and Vercel.

Built comprehensive automated test suites for React and Next.js web apps using Jest, React Testing Library, Mocha, and Chai, increased test coverage to 85% across core services.

Designed and optimized CI/CD pipelines using Jenkins and GitHub Actions, and automated environment provisioning with Terraform, reduced deployment time by 70%.

Contributed to serverless architectures, leveraging AWS API Gateway, Lambda, and Step Functions, and designing event-driven flows with Go, Kafka, Docker, and Kubernetes, improved system scalability for peak workloads.

Participated in Agile development sprints, collaborated with cross-functional teams, and mentored junior engineers.

Cross-Platform Mobile App Development

Delivered cross-platform mobile products for clients, improved testing and release processes to ensure reliable app quality, and increased team development speed by adopting modern AI-assisted tools.

Developed cross-platform mobile apps and prototypes for clients using React Native and Expo, implemented custom native modules in Swift and Kotlin, and delivered offline-first capabilities with SQLite and Redux Persist.

Implemented end-to-end mobile testing using Detox and automated device build and test workflows using EAS and Fastlane, validated core navigation flows, authentication, offline-first features, and reduced manual QA time.

Accelerated development workflows by adopting Cursor for AI-assisted refactoring, test generation, and code navigation, improved feature delivery speed across the team.

Coinbase

Cryptocurrency
Financial Technology

Full Stack Engineer
Nov 2020 - Apr 2022

Frontend Web App Development

Led the development of performant, component-driven user interfaces, improved overall rendering efficiency.

Cross-Platform Mobile App Development

Migrated native iOS/Android apps to a unified React Native codebase, implementing core features for Coinbase's mobile app.

Migrated native mobile apps to a unified React Native platform, rebuilt 200+ screens and consolidated iOS/Android codebases into a shared TypeScript repo.

Developed mobile KYC onboarding flows with React Native, native camera modules, and Go microservices, decreased user drop-off in the verification funnel by 11%.

Implemented secure authentication flows including OAuth2, biometric login (Face ID/Touch ID), and device trust checks using React Native bridge modules, reduced authentication friction.

Integrated crypto watchlists, price alerts, and push notifications using FCM and APNs, enabled users to track price movements and contributed to 3M+ monthly alert deliveries across BTC, ETH, and major tokens.

Backend Development

Implemented scalable backend services and APIs, improved data throughput, reliability, and integration with external systems such as payment, authentication, and notification services.

Cheddar Flow

Real-time Market Data
Trading Analytics Platform

Full Stack Developer

Sep 2019 - Oct 2020

Frontend Development

Built and optimized Cheddar Flow's real-time trading interface, delivered fast and interactive visualizations for options flow and dark-pool data.

Developed the real-time options flow dashboard UI using React, Redux, WebSockets, and D3.js, enabled traders to monitor live sweeps, blocks, and unusual activity.

Rebuilt legacy pages into React Hooks and TypeScript functional components, improved maintainability and reduced frontend bugs by 20%.

Created interactive data visualizations using D3.js and designed responsive layouts using Styled Components and CSS-in-JS, improved user engagement and ensured a polished cross-device experience.

Implemented advanced flow filtering UI using React’s controlled components and optimized rendering techniques including lazy loading, pagination, and avoiding unnecessary re-renders.

Optimized the frontend build pipeline by refining Webpack configurations with code splitting, tree shaking, and dynamic imports, and tuning Babel presets, reduced bundle size by 28% and improved initial load time.

Backend Development

Developed and maintained high-performance backend services powering real-time data ingestion, historical search, alerting features, security, and integrating external market data APIs.

Built and maintained real-time data ingestion services with Node.js, Express, Redis pub/sub, and PostgreSQL, supported sub-second streaming performance.

Built internal REST endpoints for flow searches, historical lookups, ticker alerts, and user profile data using Express.js with strict validation via Joi.

Implemented secure authentication and authorization logic using JWT, bcrypt, and role-based access control.

ChowNow

Food Ordering & Delivery Platform

Frontend Developer
Apr 2016 - Aug 2019

Online Ordering Web Platform

Built core customer-facing features for ChowNow's online ordering web platform, including menu browsing, checkout flows, storefront customization, and real-time order updates.

Built and enhanced the online ordering web platform, developed responsive menu browsing, item customization, and cart workflows using React, Redux, and ES6.

Delivered the multi-step checkout flow including address selection, payment entry, and order confirmation using React Router, Redux-Saga, and Stripe.js, improved conversion funnel completion by 12%.

Created reusable UI component library including buttons, inputs, dialogs, and loaders using Storybook and SCSS, improved consistency and accelerated feature development across teams.

Integrated real-time order status updates via WebSockets and contributed to the rollout of Progressive Web App (PWA) capabilities such as offline caching.

Mobile Ordering and Tracking Apps

Developed ChowNow's white-label restaurant mobile apps for iOS and Android, implemented ordering flows, payment integrations, and order-tracking experiences.

Developed core features for ChowNow’s white-label restaurant mobile apps using React Native, implemented native performance-sensitive components in Objective-C and Java on lower-end devices.

Built the mobile ordering and payment workflow using Stripe SDK, enabled secure card storage, Apple Pay, and Google Pay integrations.

Utilized Google Maps API to implement location and delivery tracking features including address autocomplete, map rendering, and real-time status updates.

Migrated UI modules and improved long-term maintainability introducing TypeScript across codebases.

Bloomfire

Knowledge Sharing Platform

Software Developer
Feb 2015 - Mar 2016

Knowledge Sharing Web App

Contributed to multiple feature areas within Bloomfire's SaaS knowledge sharing platform, including content tools, search, analytics, and admin systems.

Implemented content creation and collaboration features including post editing, media uploads, and tagging, developed the frontend using JavaScript, jQuery, and responsive HTML5, CSS3, Bootstrap interfaces.

Created internal admin tools for moderation, user management, and audit logs, built new UI components using AngularJS and new RESTful API endpoints with Node.js, improved API response efficiency by 20%.

Utilized D3.js and MySQL for building analytics dashboards with user engagement and content performance.

EDUCATION

Texas A&M University

Bachelor's Degree in Computer Science
Class of 2014

CONTACT

Email

[email protected]

Phone

+1 323 207-8617

Location

Austin, TX 78728, USA

Website

https://stephen-chen.jimdosite.com

https://www.linkedin.com/in/stephen-chen-17bb2339a/

GitHub

https://github.com/rb74

SENIOR SOFTWARE ENGINEER

TECHNICAL SKILLS

Programming Language

Frontend Web & UX/UI Design

Mobile App Development

Backend & API Development

Databases

Testing & QA

Version Control & CI/CD

Cloud Services

WORK EXPERIENCE

Boston Consulting Group

Full Stack Web App Development

Cross-Platform Mobile App Development

Coinbase

Frontend Web App Development

Cross-Platform Mobile App Development

Backend Development

Cheddar Flow

Frontend Development

Backend Development

ChowNow

Online Ordering Web Platform

Mobile Ordering and Tracking Apps

Bloomfire

Knowledge Sharing Web App

EDUCATION

Texas A&M University

CONTACT

Email

Phone

Location

Website

LinkedIn

GitHub