Summary

As an experienced mobile developer with 6 years of experience in Android development and 3 years of experience in Flutter development, I have a deep understanding of the mobile app development process and the technologies that power it. I have built and deployed numerous mobile applications including maintenance projects and projects from scratch.

Technical proficiencies

Programming Languages: Kotlin, Java, Dart. 

Skills: 

  • Kotlin, Java, Dart, Android native, Flutter.
  • Architecture:
  • Android: MVVM + Clean Architecture.
  • Flutter: Bloc / Getx / RiverPod / Provider + Clean Architecture.
  • Dependency Injection: Dagger/Koin for android. GetIt, Injectable for flutter.
  • Object-oriented methodology.
  • Reactive programming: RxAndroid, RxJava, RxDart, Coroutine Flow.
  • Database: Room, realm, SQLite.

Tools: Android Studio, Git.

Professional Experience

Medical Performance Tracking App - German 

Flutter Developer, Apr 2024 – Jan 2025

Project description 

  • Developed a companion mobile application that enables doctors to track and archive their medical performance using data collected from electrosurgical devices.

Responsibilities 

  • Implement features:  
  • Compare screen: compare your performance to other doctors
  • Doctor list: search and listing doctors
  • U ser profile
  • Login (using AppAuth)
  • Writing Unit Test
  • Writing Automation Test

Technologies 

  • Flutter, Riverpod, flutter_hooks
  • Go_router package for app navigation
  • Flutter_appauth
  • Mockito
  • Maestro for writing automation test

‍

Work Order App – Switzerland 

Flutter Developer, Dec 2023 – Apr 2024

Project description 

  • A mobile application where you can easily place requests and apply for orders
  • User can switch between Seller and buyer roles

Responsibilities 

  • Build project structure
  • Implement all app screens
  • Implement Chat feature (text only) using signalr
  • Implement social login: Google, Apple.
  • Fixing bugs
  • Deploy the application to stores

Technologies 

  • Flutter, Bloc
  • Injectable, get_it for DI
  • auto_route package for app navigation
  • Firebase Messaging
  • Signalr_core: Flutter SignalR client for ASP.Net Core

‍

Loyalty App – HongKong 

Android Developer, July 2023 – Oct 2023

Project description 

  • Build a loyalty app where the members can earn and use their reward points

Responsibilities 

  • Build project structure
  • Implement Common UI
  • Implement app screens: Login, Register, Find Stores (show on Map), My Rewards, Profile …
  • Fixing bugs, supporting team members and maintaining.

Technologies 

  • Clean Architecture, MVVM, Coroutine/Flow, Koin, Google Maps, Navigation Component

‍

Career Exploration App – Canada 

Flutter Developer, May 2022 – July 2022

Project description 

  • Build an application to help restaurant employees map their way to a future career.

Responsibilities

  • Implement App navigation.  
  • Implement chat bot feature.  
  • Implement app screens: Discover Careers, Recommend Jobs, Goals Progress, Chat screen, User Settings…  
  • Implement login by Auth0  
  • Fixing bugs, supporting team members and maintaining.  
  • Deploy the application for our customers.

Technologies

  • Flutter, Getx, Dialogflow (Chat bot), Auth0

‍

Quizz App – England

Flutter Developer, Apr 2022 – May 2022

Project description 

  • This application let schools add extra activities for their students by doing quizzes and challenges as a group or team  

Responsibilities

  • Implement quizzes and challenges screen.  
  • Integrate Lottie.  
  • Integrate firebase notification.  
  • Fixing bugs, supporting and maintaining.

Technologies

  • Flutter, Getx, Lottie animation, Firebase notification.

‍

Asset Management App – Australia

Flutter Developer, Nov 2021 – Mar 2022

Project description 

  • App for tagger (worker) to manage assets.  
  • Offline mode available  

Responsibilities

  • Implement app screens: Asset List, Create/Edit Order, Submit Order, Scan Screen…
  • Implement offline mode.
  • Implement login by Auth0
  • Fixing bugs, supporting and maintaining.

Technologies

  • Flutter, Getx, Caching data, Floor database, Scan QR code, Firebase notification, Auth0

‍

POS App (Point of Sale App) – United States 

Android Developer, Mar 2021 – Nov 2021

Project description 

  • Ecommerce Application  
  • Beautiful and friendly UI

Responsibilities

  • Build UI from the design  
  • Implement features: Landing page, Cart, Payment, Search, Product List, Login with AppAuth  
  • Fixing bugs, supporting and maintaining.

Technologies

  • Clean Architecture, MVVM, Coroutine/Flow, Koin, Room DB, AppAuth (Open id) for Authentication, Google Maps.

‍

Tracking App – Viet Nam

Android Developer, July 2020 – Nov 2020

Project description 

  • Tracking user’s trips after one-time successful pairing with bike via Bluetooth.
  • Visualizing trips history on a map route with detailed information such as trip distance, total distance, average speed, duration, CO2 saved…

Responsibilities

  • Designed the app architecture using MVVM and Clean Architecture principles
  • Integrated BLE (Bluetooth Low Energy) communication to scan and connect with IoT-enabled bicycles.
  • Show user trips on google map
  • Show real time trip’s statistic chart
  • Implement app screens: Landing page, User Trips, Leaderboards, User Settings, Login/Register…  
  • Fixing bugs, supporting and maintaining.

Technologies

  • Clean Architecture, MVVM, Rx, Dagger, Room DB, Google Map, BLE (Bluetooth Low Energy)

‍

Employee Management App – Vietnam

Flutter Developer, Nov 2020 – Mar 2021

Project description 

  • Built a mobile application for a company in Vietnam to manage workforce operations, including tracking working hours, handling leave requests, and managing company assets    

Responsibilities

  • Build UI from the design
  • Implement features: logtime, booking, manage assets, notification.
  • Fixing bugs.

Technologies

  • Flutter, Bloc, Caching data, Firebase notification

‍

Invoice Statistics App – Germany

Android Developer, Apr 2020 – Sep 2020

Project description 

  • This app helps you monitor the monthly costs and usage of your business mobile phone contracts in an easy way  
  • Support Portrait and Landscape mode  
  • Support phone and table

Responsibilities

  • Build UI from the design
  • Implement chart views
  • Fixing bugs.

Technologies

  • MP Chart, MVVM, Clean Architecture, Rx, Dagger

‍

Work Order Management App – Singapore

Android Developer, Oct 2019 – Mar 2020

Project description   

  • App for the technician to manage work orders.
  • Offline mode available. Technician can update the work order in offline mode.
  • Using web view to interact with the 3D assets.
  • Support phone and tablet.

Responsibilities

  • Implement offline mode
  • Communicate with the 3D webview base using js.
  • Implement app screens: Work Order List, Work Order Detail, Update Work Order, Create Work Order, Asset Viewer, User Setting…  
  • Fixing bugs

Technologies

  • Clean Architecture, MVVM, Rx, Dagger, Realm database, Firebase notification

‍

Survey App – Singapore 

Android Developer, Jan 2019 – September 2024

Project description 

  • This app is Singapore’s online survey community created for you to share an opinion on issues that matter.

Responsibilities

  • Implement screens: Survey List, App Setting, Profile Setting, Landing page, Redeem Voucher, Onboarding, User Activity History, Mataninance mode, Login/Regisster …
  • Fixing bugs.
  • Deploy app to google store

Technologies

  • MVVM, Rx, Dagger, Location service

‍

Aromatherapy App

Flutter Developer, May 2018 – July 2018

Project description 

  • Collaborate with the Cambodia team to complete development tasks.  
  • Develop a ride-sharing application similar to Uber.

Responsibilities

  • Implement some features following specification.  
  • Research new techniques to apply to projects.
  • Fixing bugs, supporting and maintaining. 

Technologies

  • Objective C, RESTful API.

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Essential Oil Blending App – France 

iOS Developer, June 2016 – December 2016

Project description 

  • Developed a mobile application that helps users create customized essential oil blends without requiring prior aromatherapy knowledge. The app provides a guided, user-friendly interface for selecting ingredients and generating blend recommendations.

Responsibilities

  • Build UI from the design
  • Implement in app purchase
  • Fixing bugs.

Technologies

  • Flutter, Firebase firestore, Firebase Auth, In app purchase
Certifications

Education:

HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY

Major: Database Management

Book an Appointment

Navigating OurCooperation Models

Staff Augmentation
Dedicated Development Team
Fixed Price Model
28-46 USD/hour
We assess your needs first. Then, we will send you the top software engineer CV options so that you can select your favorite. The chosen engineer becomes part of your in-house team.

Ideal for businesses that:
Need specialized expertise but don't want to hire full-time staff
Want to scale resources up and down quickly
Require extra support for upcoming or ongoing projects
You can choose from our numerous software developer CV options. The selected developers form a dedicated team that works exclusively on your project. They also collaborate closely with your in-house team to achieve your goals.

Ideal for businesses that:
Require cost-effective and scalable solutions for large and long-term projects
Want to form a consistent team with excellent skills
Need a development team committed to their business goal
We define a clear path for your project. Since the project has clear timelines and scopes, you can control your budget better. You can also choose to work with a remote team or manage specialized technical roles.
‍
Ideal for businesses that:
Have a set budget and clearly outline the project scope
Struggle with strict deadlines
Handle projects with clear goals, a detailed outline, and achievable milestones
Let's Discuss Your Needs
How to Hire Top Developers from Saigon Technology?
1. Submit Initial Request

You send us a quick request and tell us the skills you need. In this meeting, you also define the number of developers and their experience. We will let you choose your favorite cooperation model.

2. Candidate Resume Screening

We screen our database and handpick the best matches for you. You will get a list of the most relevant software engineer CVs and software developer resumes.

3. Coordinate Interview Schedule

It's time to pick the software engineer CV you love most. Then, simply let us know your available times to schedule interviews.

4. Conduct Interviews

We arrange your interviews within just one to two days. You can meet the talent behind the resume and choose your best fit.

5. Prepare a Service Level Agreement (SLA)

Once you are happy with the chosen experts, we will draft a clear SLA. The agreement outlines all the essential details, like project scope and responsibilities.  It's where we kick off the partnership.

6. Initiate Onboarding Process

Your selected experts are ready to jump into the project. The leader can be our experienced project manager or your own team leader. We ensure a fast setup and clear workflow.

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CONTACT US
Consultant:
(+84) 767 496 612
Careers:
(+84) 2838 110 001
Sale:
sales@saigontechnology.com
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