VINCENT NGUYEN

Senior Full Stack Developer · Mobile Team Leader · Product Owner

📍 Da Nang, Vietnam ✉ tricong09t3@gmail.com ☎ +84 982 709 185

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Summary
Experience
Technical
Projects
Contact
CV

Profile

Mobile-first Full Stack Developer with 10+ years shipping production-ready mobile apps, admin platforms, backend services, and cloud infrastructure.
Technical leader — leading mobile teams, reviewing PRs, mentoring developers, and resolving complex issues across React Native, native iOS/Android, web, backend, and DevOps.
Product-minded engineer — design UI/UX flows in Figma, scope features, set up CI/CD, deploy to app stores, and work directly with clients, POs, BAs, QA, and PMs.

Core Strengths

Product Builder

Set up mobile, web, backend, cloud, CI/CD, analytics, and deployment workflows from scratch.

Technical Leadership

Lead teams, review architecture and PRs, mentor developers, and unblock delivery risks.

UI / UX Mindset

Improve feature flows, mobile layouts, admin usability, and end-to-end user experience.

Client Collaboration

Communicate with international clients and cross-functional teams to align delivery goals.

Technology Keywords

React NativeExpoiOSAndroidKotlinSwiftObjective-CFlutterReact.jsReact AdminNestJSNode.jsFirebaseAWSGoogle CloudMongoDBPostgreSQLGraphQLPythonFigmaPhotoshopUnityCocos2DC/C++

Professional Experience

Senior Full Stack Developer · Xenia.tech May 2025 – May 2026 · Remote

Orditt & Rewarditt — retail field operations and brand rewards platforms.

Orditt — A smarter way to manage retail audits and field sales. Plan routes, log in-store data, complete sales, and generate real-time reports from one powerful app — built for teams that want faster insights and stronger on-site execution.
Rewarditt — Gives UK shop owners instant access to exclusive offers from leading food and beverage brands. Sign up with shop name, address, and email, browse exclusive deals, and tap Redeem to order directly on the brand's website.
Worked closely with cross-functional teams to improve product workflows, delivery quality, and end-user engagement.

Stack: Expo, React Native, NestJS, MongoDB, Supabase, AWS, React.js.

Full Stack Developer · Green Media Tech Apr 2024 – Feb 2025 · Da Nang (Fitness startup)

Built the project from the ground up — mobile app, admin web, landing page, backend, deployment, infrastructure.
Designed multiple product phases in Figma; iterated UI/UX based on Product Owner feedback.
Set up S3, Google Cloud, Firebase services, App Distribution, Play Store, App Store deployments.
Implemented CI/CD pipelines; organized tasks via GitLab and Lark Kanban.
Conducted AI training experiments with Python and Gemini AI via Google Code Lab.

Stack: React Native, React.js, React Admin, Firebase, Google Cloud Functions, Firestore, AWS S3, Python, Gemini AI.

Mobile Team Leader · Calibrate Software (Big Game Golf) Jan 2024 – Aug 2024 · Remote (US)

Led the mobile development team for a golf application built with React Native.
Conducted biweekly late-night meetings with QA, BA, PM, and U.S. clients.
Designed improved UI/UX flows for portrait/landscape — score, leaderboard, final leaderboard.
Provided technical guidance and resolved complex implementation issues.

Team: 9 (QA, mobile, backend, BA, PM). Stack: React Native, Python backend.

Technical Leader / Product Owner · Retex (Retex X20) Apr 2023 – Sep 2023 · Da Nang (Textile)

Managed workflow across mobile, frontend, backend, BA, designer, and operations.
Fixed critical legacy bugs in Android Kotlin, iOS Objective-C, and Swift.
Trained interns in React.js, Node.js, and MongoDB.
Met clients for progress updates, business integration, and workflow optimization.

Stack: Kotlin, Objective-C, Swift, Ruby on Rails, AWS, Google Cloud, React.js, Node.js, MongoDB.

Senior Mobile Developer · FWD Insurance Dec 2022 – Jan 2023 · Remote (HK)

Built FWD insurance mobile app features in a multi-country team (HK, TH, ID, KR, VN).
Managed Vietnam team members, reviewed PRs, and worked with PO on UI/UX.
Daily meetings across regions; communicated across different English accents.

Stack: React Native, Expo, Node.js, MongoDB Atlas, chart rendering, schema forms.

Senior Mobile Developer · Enouvo IT Solution Nov 2020 – Aug 2022

Delivered multiple products & outsourcing projects — KindiCare, Aciona, KuuHo, Many Dime, 10 Cents, Yem.
Trained interns, supervised developers, reviewed PRs, debugged complex issues.

Stack: React Native, native modules, Kotlin, React.js, Node.js, PostgreSQL, AWS Amplify, CI/CD.

Senior Mobile Developer · SAMO Technology JSC (Momi Insurance) Nov 2019 – Jun 2020 · Da Nang

Developed Momi — online insurance, fund certificates, and news.
Resolved tester and customer issues across UI, flow, upgrades, and production bugs.

Stack: React Native, React.js, Node.js, MongoDB.

Senior Mobile Developer · Enouvo IT Solution Mar 2016 – Sep 2019

Worked on KuuHo, Comfort as Home, and Enouvo Space across mobile, frontend, backend, DevOps, QA.
Built early React Native apps and native modules connecting iOS/Android native code via the JS bridge.
Deployed and submitted apps to stores; mentored junior developers.

Stack: React Native, React.js, Node.js, MongoDB, PostgreSQL, native modules.

Junior 2 Game Developer · Gameloft Apr 2014 – Mar 2016 · Da Nang

Worked on 2D/3D games — Ninja Up, Dizzy Fruit, Football 2016, NOVA 3.
Fixed UI/UX issues, crashes, freezes, and runtime memory problems.

Stack: JNI, OpenGL ES, Java, Objective-C, C/C++, J2ME, Lua, Python, Bash/Shell.

React Native · 8+ years

State Management — Redux, Redux Toolkit, RTK Query, Redux Saga, Redux Persist, Context API.
Data Fetching — React Query (TanStack Query), Apollo Client (GraphQL), Axios, fetch.
Storage — react-native-mmkv, AsyncStorage, native Android storage, migration of old persisted data to new versions (iOS).
Lists — FlatList, Shopify FlashList.
Styling — StyleSheet, NativeWind (Tailwind for RN), Tamagui, theming + dark mode.
Navigation — React Navigation, React Native Navigation (Wix), React Native Router Flux, Expo Router.
Native Modules — bridge native UI and async functions to JS in Objective-C, Swift, Java, Kotlin.
Native code — read and patch Objective-C, Swift, Java, Kotlin.
OTA Updates / CodePush:
- Microsoft CodePush (legacy / App Center).
- Expo Updates (EAS Update).
- Stallion — modern CodePush alternative.
Firebase — Auth, OTP, Notifications, Realtime DB, Cloud Functions, Crashlytics, App Distribution, DeepLink setup.
Camera & Media — react-native-vision-camera, image-picker, video player & recorder.
Push & Notifications — Firebase Cloud Messaging, Notifee, OneSignal, Expo Notifications.
Audio / Video Call — Twilio, CallKeep, Jitsi.
Live Stream — Mux.
Audio / Video — player & recorder, background audio.
Real-time — Socket.IO client.
Maps & Location — Mapbox, React Native Maps, Google Maps & Places API, background geolocation tracking.
Crashes / SDK — Firebase Crashlytics, Sentry.
App Permissions — permission flows, store submission forms, iOS Info.plist, Android API-level handling.
Deep Linking — Universal Links, Firebase Dynamic Links.
QR Code — generate & scan.
Payments — Stripe, In-App Purchase iOS & Android, store submission.
Auth & Social — Apple Sign-In, Google, Facebook, Twitter, Zalo; biometric (FaceID / TouchID / Android biometric); sharing & posting; Firebase console & IAM setup.
AWS — Amplify JS, aws-sdk.
Performance — Hermes, RAM bundling, caching, FlatList pagination.
Security — App attest, hash key, host check.
Multi-Environments — react-native-config.
Localization — i18next, react-intl, native localization (Info.plist permissions, app name).
Splash screen.
SVG & Icons — react-native-svg, React Native Vector Icons.
Upload / Download — photo, audio, video.
Class & Function Components — lifecycle, AppState, React Hooks (useState, useMemo, useEffect, useCallback, useImperativeHandle).
Migrate — JS → Flow → TypeScript.
Languages — TypeScript, JavaScript ES5 / ES6 / ESNext.
Code formatter & Hooks — ESLint, TSLint, Prettier, Husky, lint-staged.
Dev Tools — Reactotron, Flipper.
Debug — Android Studio, Xcode, command line (adb logcat).
Connect API — fetch (standard lib), Axios.
Responsive & Rotation — code for many devices including tablet; lock/unlock orientation via Navigation module and native code.
Date & Time — Calendar, Date & Time picker.
Ads — Google Ads, Facebook Ads.
Open Source — fork and patch GitHub modules in native and JS code.
Project Setup — bootstrap projects from zero with a clean, scalable structure.

Expo

Workflow — managed and bare workflows; prebuild and continuous native generation.
Expo Router — file-based routing, deep linking, layout routes.
EAS Build — cloud iOS/Android builds, internal distribution, build profiles, signing credentials.
EAS Submit — automated submission to App Store Connect and Google Play.
EAS Update — OTA updates by channel / branch, runtime versions, rollback.
Config Plugins — native iOS/Android modifications without ejecting.
Expo Modules API — write native modules in Swift / Kotlin.
Expo APIs — Camera, Image Picker, Notifications, AV, FileSystem, SecureStore, Location, Linking.
Dev tools — Expo Dev Client, Expo Go.

Backend

NestJS and Node.js services — REST and GraphQL.
Firebase Cloud Functions.
Ruby on Rails — maintained legacy services.
Databases — PostgreSQL (~2 years), MongoDB (~1 year), Firestore.

Web Frontend

React.js + TypeScript, Next.js, build tooling with Vite.
React Admin — internal dashboards and CRUD back-offices.
UI — Material UI.
Amplify JS.
WordPress — migration from React.js to WordPress site.
HTML / CSS fundamentals.

Cloud, DevOps & CI/CD

AWS — S3, Amplify, aws-sdk.
Firebase / Google Cloud — Cloud Functions, Cloud Storage, Firebase services.
CI/CD — CircleCI, GitLab CI, Fastlane.
App Distribution — Firebase App Distribution, TestFlight, App Center.
Deployment — submitted personal and client apps to App Store and Play Store; track Apple & Google review guidelines.
Containers — Docker, Docker Compose, PM2.
Scripting — Bash / Shell, Python, Gradle.

AI / ML Integration

Gemini AI — integrated in EFL Flashcards (personal product) and Green Media Tech experiments.
On-device ML — ML Kit, Apple Vision (text recognition, face detection).
Python notebooks via Google Code Lab.

Native Mobile & Flutter

iOS — Swift, Objective-C, Info.plist, signing & provisioning.
Android — Kotlin, Java, Gradle.
Flutter — Dart; shipped Bill Scanner utility app.

Game Development (Gameloft)

OpenGL ES — 2D / 3D, shader, animation.
Engines — Cocos2D, Unity (shipped two Unity games to App Store and Play Store).
Languages — C / C++, Java, Objective-C, Lua, Python, JNI.

Design

Figma (primary), Sketch, Zeplin.
Adobe — Photoshop, Illustrator.
Material Design.
Can produce draft UI directly in code when no design exists.

Source Control

Git — flow, command line, GUI tools (SourceTree, GitHub).
SVN.
GitHub, GitLab, Bitbucket.
Contributed to many GitHub modules in native and JS code.

Testing

Unit — Jest, React Native Testing Library.
E2E — Detox, Maestro.
Manual QA — Firebase Test Lab, physical iOS / Android test matrices.

Xenia.tech · 2025 – 2026

Orditt — Mobile app · Expo

A smarter way to manage retail audits and field sales. Plan routes, log in-store data, complete sales, and generate real-time reports from one powerful app — built for teams that want faster insights and stronger on-site execution.

Stack: Expo, React Native, NestJS, MongoDB, AWS.

Rewarditt — Mobile app · Expo

Gives UK shop owners instant access to exclusive offers from leading food and beverage brands. Sign up with shop name, address, and email, browse exclusive deals, and tap Redeem to order directly on the brand's website.

Stack: Expo, React Native, NestJS, Supabase, AWS.

Freelance & Client Projects

GolfLync — U.S. client · Apr 2023

Golf social networking platform for 100,000+ U.S. golfers. Built with BA, designer, tester, PO, backend, frontend, PM.

Stack: React Native, Node.js.

Ask Your Genie — Devtify · Jan–Apr 2023

Social app to ask famous people questions; gems / coins payment flow.

Stack: React Native, React.js, Node.js, React Query.

Partle — Freelance

Event hosting platform; website booking and Stripe payments.

Stack: React Native, Stripe.

Vorship — Freelance

Worship platform — livestreamed services with real-time communication.

Stack: React Native, Socket.IO, Node.js, MongoDB, AWS, React.js admin.

EFL Flashcards — Personal product

Flashcards mobile app — designed UI/UX in Figma, built backend and admin.

Stack: React Native, native modules, Firebase, AWS, Gemini AI, React Admin.

Bill Scanner — Personal utility

Flutter app for scanning bills and supporting productivity workflows.

Stack: Flutter.

NgoaiNguMrBien / AnhNguMB

English education website — built first in React.js, migrated to WordPress. Logo work in Photoshop.

Automation Utilities

Python and Node.js scripts to format and process .xls, .csv, and .json files.

Stack: Python, Node.js, Bash/Shell.

Earlier Product & Outsourcing — Enouvo IT

KindiCare

Platform to find and compare nearby child care centers.

Stack: React Native.

Aciona

Business app for managing operations and tracking driver locations.

Stack: React Native, Kotlin, React.js, Node.js, AWS, CircleCI.

KuuHo

Smart city initiative for a smart, safe, supportive community.

Stack: React Native, native modules, PostgreSQL.

Many Dime

Event platform with ticket booking, photo sharing, facial-recognition image download.

Stack: React Native, AWS Amplify, AWS.

10 Cents

Food and event booking application.

Stack: React Native, React.js, Node.js.

Yem

Event hosting platform delivered under a two-month deadline (Sotatek collab).

Stack: React Native.

Games — Gameloft

Ninja Up · Dizzy Fruit · Football 2016 · NOVA 3 — iOS, Android, C/C++, Java, Obj-C, Lua, Python.

Get In Touch

tricong09t3@gmail.com +84 982 709 185 github.com/ntcong91 github.com/congnguyen91 facebook.com/ntcong91

Languages & Education

Vietnamese — Native
English — Working communication
Da Nang University of Technology — Engineering · 2009–2014 · Scholarship · Team management

Interests

Running, martial arts, guitar, harmonica, bamboo flute, piano, English, travelling.

Curriculum Vitae

Open in Google Drive ↗