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Hire the best Object Oriented Programming (OOP) Specialists in Vietnam

Check out Object Oriented Programming (OOP) Specialists in Vietnam with the skills you need for your next job.
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  • $10 hourly
    • 4.5/5
    • (22 jobs)
    With over 1 year of experience as a data entry freelancer, I pride myself on delivering accurate and efficient work at competitive rates. My commitment to quality ensures that every project I handle is completed with precision and professionalism. Beyond data entry, I have a strong foundation in coding with C++, Python, Java, and Object-Oriented Programming. Recently, I’ve gained hands-on experience in Java backend development, working with frameworks like Spring Boot, Spring MVC to build robust, scalable applications. My expertise also extends to the fields of Artificial Intelligence (AI) and Machine Learning (ML), where I’ve contributed to projects involving predictive modeling and feature extraction. Additionally, I bring a unique perspective from my time as a Math and IELTS tutor for elementary and middle school students in Vietnam, where I honed my skills in clear communication and adaptability. If you're looking for someone who combines technical expertise, attention to detail, and a commitment to excellence, I’d be happy to collaborate on your next project!
    Featured Skill Object Oriented Programming (OOP)
    Vietnamese
    English
    Object-Oriented Programming
    Data Entry
    Manual Testing
    Translation
    Mathematics Tutoring
    Teaching
    Mathematics
    English Tutoring
    Problem Solving
    Python
    Java
    C++
    Physics
  • $35 hourly
    • 4.4/5
    • (21 jobs)
    Over the span of 13 years, I've immersed myself in the realm of native Android application development, culminating in a diverse portfolio that encompasses an array of dynamic projects. This includes the creation of highly secure and encrypted communication platforms (OTTs), innovative social networks, robust cryptocurrency exchanges, efficient system utilities, intuitive online stores, intelligent smart assistants, and a wide spectrum of other application categories. At the core of my skill set is the art of crafting resilient and high-performance Android applications that seamlessly traverse the landscape of various devices – from smartphones to tablets – all while optimizing CPU and memory resources. My expertise extends beyond coding; I possess extensive experience in architecting efficient team workflows, along with a keen eye for conducting meticulous code reviews, ensuring the delivery of exceptional projects. My hands-on proficiency involves constructing formidable codebases using the MVP/MVVM architecture, employing languages such as Java and Kotlin, and harnessing the power of Gradle. This proficiency is underscored by a deep-seated understanding of essential object-oriented programming concepts, a rich repertoire of software design patterns (including Singleton, Observer, Factory, and Decorator), comprehensive testing methodologies (spanning Unit, Integration, and Automated UI tests), and a spectrum of cutting-edge technologies that have been embraced by the Android development community. As I embrace new horizons, I am actively seeking opportunities not only to engineer and deliver top-tier applications but also to offer innovative solutions that can fuel the growth of your business. I invite you to connect with me, and let's collaboratively shape the trajectory of your applications and business endeavors.
    Featured Skill Object Oriented Programming (OOP)
    Performance Optimization
    Model View Presenter
    Object-Oriented Programming
    Android SDK
    Android App Development
    Gradle
    Android Studio
    Chat & Messaging Software
    API Integration
    SQLite
    Kotlin
    Android
    Java
    Native App Development
  • $25 hourly
    • 5.0/5
    • (18 jobs)
    Hi, I’m Nha, an enthusiastic Software Engineer with 4 years of experience in software development. I have been a Software Engineer for 2 years at Zalo - the most popular messaging platform in Vietnam. 🔸Back-end technologies + Framework: Java Spring, Gin gonic, Flask and Django. + Database: MySQL (MariaDB as well), PostgreSQL, and MongoDB. + API design: REST and GraphQL. 🔸 Front-end technologies + JS/TS framework: ReactJS and webpack. + CSS framework: TailwindCSS, MUI, and Bootstrap. 🔸 SDLC + Version control: git and svn. + CI/CD: Gitlab, Jenkins, Docker, and Kubenetes. + Testings: JMeter, JUnit, and Mockito. 🔸 Cloud + AWS, Google Cloud (including Firebase), and Heroku.
    Featured Skill Object Oriented Programming (OOP)
    Algorithm Development
    Microsoft Visual C++
    Shell Packaging
    Object-Oriented Programming
    Linux
    CMake
    C#
    Microsoft Windows
    Python
    C++
    JavaScript
    C
  • $5 hourly
    • 5.0/5
    • (1 job)
    As an experienced PHP Laravel Developer, I bring over four years of expertise in building scalable, efficient, and maintainable applications. I am a key contributor in my current project, where I serve as the sub-leader of a back-end team within a large, collaborative team of 25 members. My strengths include developing robust RESTful APIs, optimizing database queries, and writing clean, modular code that aligns with best practices and business needs. I am proactive, detail-oriented, and passionate about continuous learning, always looking to leverage new tools and technologies to enhance performance and user satisfaction.
    Featured Skill Object Oriented Programming (OOP)
    Microsoft Excel
    Microsoft Word
    Object-Oriented Programming
    RESTful API
    jQuery
    CSS
    Bootstrap
    HTML
    JavaScript
    MySQL
    PHP
    Laravel
  • $17 hourly
    • 5.0/5
    • (2 jobs)
    I am Vu Hang, a Fullstack Developer from Vietnam, with 4 years of experience in Blockchain, Java, Spring Boot, Spring Cloud and Vue.js programming. I have worked with many customers in Europe and am able to communicate well in English. I can handle complex and technologically diverse projects. My latest and most outstanding experience is ROBO INU FINANCE, a financial project that uses blockchain technology to improve the lives of individuals and businesses. I am the Dapp Blockchain Developer in this project and am responsible for building the DEX and e-wallet system including Backend and Frontend. I also released an ERC20 token called RBIF and supports functions such as sending, receiving, exchanging and using cryptocurrency on decentralized applications. I also created gift cards as NFTs to create incentives to use the system and attract users. Additionally, I also support yield farming - a way to earn rewards by depositing cryptocurrencies or digital assets into decentralized exchanges. The project's products include: a decentralized exchange (DEX), a mobile wallet, an extended wallet and a dashboard. The techniques that I used in this project are: Blockchain, Web3, Ethereum, Golang, Solidity for Backend, Vue.js, React.js, Next.js for Frontend, PostgreSQL, Lambda AWS. This is a very new and attractive field with much potential for future development. I am very proud of this experience and look forward to applying it to other projects. I also have experience in building web applications using Java Spring Boot, Spring Cloud and Vue.js. My previous project was Payroll Engine for a client in Luxembourg. I am Java/Spring Boot/Vue.js Fullstack Developer on this project and am responsible for building the core payroll platform, developed by experts from Luxembourg and the development center in Vietnam. Currently, this platform has integrated with Securex - one of the leading HR and payroll consulting services in Luxembourg. Functions include: calculating salaries with complex algorithms optimized and based on personal income tax laws in Luxembourg, building a social insurance system according to regulations of the Luxembourg government, managing employee information employees, group configuration, calculation method, number of employees, schedule to divide into batches of employees to run payroll calculation. The techniques I use in this project are: Java Spring Boot, Spring Cloud (Feign, Zuul gateway, Eureka registration service...), ActiveMQ, Docker, Oauth2, Vue.js for front end. My goal is to build a good knowledge base and perfect my personal skills to best suit business requirements. I have a long-term development orientation in the field of blockchain, spring boot, java, spring cloud, vue.js, javascript, data science, aiming for fullstack-developer.
    Featured Skill Object Oriented Programming (OOP)
    Apache ActiveMQ
    Machine Learning
    OAuth
    Object-Oriented Programming
    Spring Cloud
    GitHub
    RESTful API
    WordPress
    Vue.js
    Java
    JavaScript
    C++
    Spring Boot
    Docker
    Node.js
    MySQL
  • $15 hourly
    • 5.0/5
    • (23 jobs)
    Work Experience - I have 10 years Experiences to develop ios applications in swift - Performed technical designs and implementation of 20+ complex iOS apps. - Worked closely with marketing team, design team, and QC team to develop applications from scratch. Key skills - Swift - Google apis and services such as Firebases, Maps, ORC,... - IAP - REST - RxSwift
    Featured Skill Object Oriented Programming (OOP)
    SwiftUI
    Google APIs
    Data Structures
    Object-Oriented Programming
    Firebase Realtime Database
    GitHub
    RxSwift
    Smartphone
    Swift
    Mobile App Development
    iOS
    Firebase
    iOS Development
  • $10 hourly
    • 5.0/5
    • (1 job)
    Full Stack Developer with over 3 years experience in Backend Systems, CI/CD Pipelines, and Mobile Development. I’ve optimized backend performance, automated deployments, and led mobile projects, delivering scalable and efficient solutions. Let’s collaborate to elevate your project with high-quality, reliable, and performant results.
    Featured Skill Object Oriented Programming (OOP)
    Deployment Automation
    NodeJS Framework
    Algorithms
    CI/CD
    Flutter
    Data Structures
    Object-Oriented Programming
    PostgreSQL
    Kubernetes
    Google Cloud Platform
    Golang
  • $25 hourly
    • 5.0/5
    • (3 jobs)
    Hi, My name is Nam. I'm experienced Magento Developer with over 8 years of experience in Web Development. Excellent reputation for resolving problems and improving customer satisfaction. Well-developed analytical and problem-solving skills. Willing to learning new language and technology. Highly motivated, capable of team and individual work. My goal is to provide the highest level of Magento services such as: Magento Consulting, Magento Extensions Development, Magento SEO optimization, Magento Performance Optimization, Magento Versions Upgrade, Magento Code Reviews. And far more than that, got fully knowledge of all its relevant such as: Servers ( Nginx/Mysql/MongoDb, Cache services like Varnish, Redis, search services like Elastichsearch, Opensearch, sphinx ...etc.. ). I can also do-able CI/CD, on my own once in old company, 100% my self has built CI/CD services base on Bamboo - Atlassian. Get in touch with me to discuss a project. Mr. Nam
    Featured Skill Object Oriented Programming (OOP)
    Object-Oriented Programming
    Agile Project Management
    PHP
    Magento
    JavaScript
    Magento 2
    Linux
    React
    MySQL
    Continuous Integration
    jQuery
    Ecommerce Website
    Ecommerce Website Development
    NGINX
    API Integration
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Experienced in Java/Scala, database, back-end. Worked with worldwide customers (England, Japan). Top priorities are product quality and meeting deadline.
    Featured Skill Object Oriented Programming (OOP)
    Object-Oriented Programming
    English
    API Development
    RESTful API
    Java
    Git
    Scala
  • $10 hourly
    • 0.0/5
    • (0 jobs)
    I'm a Unity developer. I have about 2 years of developing game and published on gg store. I'm strong at C#, Unity 2d, Design pattern, data structures and algorithm. Let's get start!
    Featured Skill Object Oriented Programming (OOP)
    Software Design Pattern
    Object-Oriented Programming
    Algorithms
    Data Structures
    C#
    Game Development Bug Fix
    Game Development
    Mobile Game Development
    Unity
  • $8 hourly
    • 0.0/5
    • (3 jobs)
    I'm a high-spirit, responsible, and passionate mobile app developer with 2 years of experience. With a strong proficiency in iOS development, I guarantee I will bring your mobile app needs to life. I have built multiple mobile apps that meet all requirements and solve customer problems. I can help you with the following: - Developing native iOS and watchOS apps using Swift, SwiftUI, and UIKit. - Brainstorming and ideation for software solutions to solve user or business needs. - I have a high spirit and responsibility in my work, as well as upholding product quality and customer satisfaction as my top criteria. - Regular communication is essential to me, so let’s keep in touch!
    Featured Skill Object Oriented Programming (OOP)
    iOS Development
    SwiftUI
    Object-Oriented Programming
    UIKit
    Swift
    iOS
  • $10 hourly
    • 0.0/5
    • (1 job)
    - I am 3-year game developer. In the first one and a half year of my careerr, I used C# and Unity to develop casual, hyper-casual, and NFT games. After that, I changed to C++ and Unreal Engine as a breath of fresh air for my career. Throughout my journey in Unreal Engine, I have honed my technical expertise in gameplay systems like GAS, Game Features plugin, Multiplayer Networking, Gameplay Framework, Niagara, Animations, Behavior Tree, etc. - Whether your games are big or medium, or even minigames, I will make sure they are delivered in cleaned and optimized code. - I am specialized in UE5 and C++ and its feature, I spend 16 hours every day coding, so you can count on me.
    Featured Skill Object Oriented Programming (OOP)
    Object-Oriented Programming
    Mobile Game Development
    Game Development
    Game Development Bug Fix
    Mathematics
    Multiplayer
    Unreal Engine
    C++
    Game
  • $20 hourly
    • 0.0/5
    • (1 job)
    Here’s a polished introduction for your Upwork profile: Hi, I'm Khoa Le, a passionate Frontend Developer. I specialize in solving frontend challenges and crafting seamless user experiences through my expertise in technologies like React, TypeScript, and JavaScript. I'm always eager to learn and stay up-to-date with the latest trends and best practices to continuously improve my skills and deliver high-quality work. Let's work together to bring your ideas to life with clean, efficient, and user-friendly solutions! - Knows HTML and CSS3, JavaScript and TypeScript, NodeJS, ExpressJS and ReactJS
    Featured Skill Object Oriented Programming (OOP)
    Object-Oriented Programming
    Microservice
    Front-End Development
    Web Development
    PixiJS
    D3.js
    P5.JS
    Web Component
    ExpressJS
    Node.js
    TypeScript
    JavaScript
    HTML5
    CSS 3
    React
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    I'm a full-stack web developer with a strong focus on building dynamic, responsive, and user-friendly web applications. Whether it's designing intuitive user interfaces or implementing robust server-side logic, I enjoy bringing ideas to life through clean, maintainable code. I'm passionate about learning new tools and frameworks, and always eager to take on new challenges in web development.
    Featured Skill Object Oriented Programming (OOP)
    SQL
    C
    Computer Science
    Object-Oriented Programming
    CSS
    HTML5
    JavaScript
    Python
    Web Development
    Web Application
  • $5 hourly
    • 0.0/5
    • (0 jobs)
    I’m a passionate and responsible Full-Stack Backend & Game Developer with strong experience in building scalable systems using Golang. I specialize in designing clean, modular architectures (Clean Architecture, DDD) that power high-performance applications, particularly in ecommerce and game development. **Core Strengths:** * Backend development with Go (Golang), using Clean Architecture, DDD, and scalable patterns. * Proficient in relational and NoSQL databases: PostgreSQL, MySQL, MongoDB. * Game development with Unity (C#) and Cocos (JavaScript/TypeScript), with solid understanding of client-server architecture. * Experienced in designing RESTful APIs, event-driven systems, caching strategies with Redis, and using message queues like Kafka and RabbitMQ. * Familiar with microservices architecture and performance-focused backend design. I bring energy, professionalism, and a strong sense of ownership to every project. Whether developing robust backend systems or creating interactive gameplay logic, I focus on clean code, long-term maintainability, and delivering real value to users. **Let’s build something great together.**
    Featured Skill Object Oriented Programming (OOP)
    MongoDB
    SQL
    Object-Oriented Programming
    Docker
    PostgreSQL
    MySQL
    Unity
    C#
    Node.js
    Golang
  • $3 hourly
    • 0.0/5
    • (0 jobs)
    As a passionate, new game developer, I have experience in personal projects, notably in developing core gameplay systems such as quest management, skill systems, and AI for enemies. I focus on creating smooth, immersive, and optimized player experiences. With a strong spirit of self-learning and high adaptability , I am always ready to contribute my utmost and bring significant value to a company, aligning with my passion for game development. I am currently seeking a suitable opportunity to leverage my skills and contribute to exciting game projects
    Featured Skill Object Oriented Programming (OOP)
    Game
    Artificial Intelligence
    Software Design Pattern
    Object-Oriented Programming
    Unity
  • $13 hourly
    • 0.0/5
    • (0 jobs)
    🔹 I'm a C# WinForms developer with strong experience building desktop applications using SQL Server, ADO.NET, and .NET Framework. I specialize in user-friendly, database-driven apps such as inventory systems, customer management tools, and reporting dashboards. 🔹 My core skills: • Windows Forms (WinForms) • SQL Server (Stored Procedures, Triggers, Views) • ADO.NET, LINQ • Object-Oriented Programming ✅ I recently completed a Library Management System using C# + SQL (see portfolio below). I can build, debug, or extend desktop applications to fit your needs. Let’s work together to bring your desktop project to life!
    Featured Skill Object Oriented Programming (OOP)
    Windows Forms
    Desktop Application Testing
    SQL
    Query Debugging
    Object-Oriented Programming
    Software Development
    Database Design
    Trigger Email Setup
    Stored Procedure Development
    ADO.NET
    Visual Studio Team Services
    Microsoft SQL Server
    C#
  • $7 hourly
    • 0.0/5
    • (0 jobs)
    Hi there! I’m a Computer Science student with a creative edge. - I'm currently pursuing a degree in Computer Science, where I focus on problem-solving, software development, and data structures. - Besides my technical skills, I also have a strong interest in content creation and advertising copywriting in English. - I enjoy combining logic and creativity—whether it's writing clean code or crafting engaging marketing messages. - I'm open to opportunities where I can apply both my technical background and my creative communication skills. Let’s connect and create something impactful together!
    Featured Skill Object Oriented Programming (OOP)
    Product Development
    Object-Oriented Programming
    SQL
    SQL Programming
    Java
    Science
    C++
    Computer Science
    Marketing
    Content Writing
    Academic Editing
    Writing
    Copywriting
  • $5 hourly
    • 0.0/5
    • (0 jobs)
    I'm study E-commerce at UIT. I passionate about web development and mobile application development. At now, i can create basic web or small mobile application.
    Featured Skill Object Oriented Programming (OOP)
    Object-Oriented Programming
    Web Development
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