Hire the Best C# Developers & Programmers
in Vietnam

Clients rate our C# developers & Programmers
Rating is 4.7 out of 5.
4.7/5
Based on 126 client reviews
Mickael B.

Hanoi, Vietnam

$32/hr
5.0
16 jobs

*** My experience *** I have implemented multiple C# / .NET / ASP.NET [Core] [MVC] / RESTful / JS/TS / SQL Full-Stack solutions and it will be my pleasure to do so again for you and make your project successful. I have worked for 7 years for a company specializing in that stack before moving to online freelancing iin 2022, hence my expertise. For JS/TS, I have implemented solutions with both React and Angular. *** About me *** I'm a Canadian expat living in Vietnam. I worked for 7 years as a software developer for a Canadian company before moving to online freelancing in late 2022. I learned programming in 2003 when I was 13 and made simple apps on and off for a few years before getting hooked for good around 2013. I've since programmed almost every siingle day, occasionally on hobby projects as well as for work since 2015. *** What to expect *** As your freelancer, my priority is making your project a success. I care about it personally, and I mean it. As a programmer, my priority is quality (of code and UX). I design for long-term maintainability, performance, and scalability. I love what I do, and I care to do it well.

  • C#
  • .NET Framework
  • SQLite
  • ASP.NET Core
  • Microsoft SQL Server
  • SQL
  • ASP.NET MVC
  • MySQL
  • Git
  • HTML
  • PHP
  • JavaScript
  • CSS
  • RESTful API
Nam N.

Hanoi, Vietnam

$5/hr
5.0
2 jobs

I'm a developer with experience building websites for businesses of all sizes — from small startups to large enterprises. I specialize in creating scalable, user-focused solutions tailored to each client's unique needs.

  • Web Application
  • Node.js
  • Java
  • Python
  • Next.js
  • Amazon Web Services
  • Web Development
  • International Development
  • PHP
  • WordPress
  • MySQL
  • React
  • Amazon DynamoDB
  • C++
  • JavaScript
  • Symfony
  • Spring MVC
Minh Nhat N.

Hanoi, Vietnam

$15/hr
5.0
32 jobs

Are you looking for a passionate game developer who can listen to your ideas and bring your game to life with smooth mechanics, beautiful graphics, and optimized performance? I’m Minh, an Indie Unity Game Developer with over 10 years of experience creating high-quality 2D, 3D, and VR games for clients around the world. We may be a great fit if you’re thinking: - “I need a game developer who truly understands my vision and translates it into gameplay.” - “I want someone who can build games for Mobile, PC, and VR with optimized performance.” - “I need support for ongoing projects or help to polish, debug, and optimize my existing games.” - “I want my game to be Google Play Store-compliant and ready for monetization (ads, in-app purchases).” - “I need someone who can design both engaging gameplay and intuitive UI/UX.” ✅ When you work with me, you get: - Smooth and clean gameplay experience. - Beautiful and user-friendly game menu UI. - Optimization for high performance on mobile and VR devices. - Flexible, clean C# code for easy future updates and scaling. - Fast communication, regular updates, and full commitment to deadlines. - Detailed design review to minimize revisions and maximize game quality. 🎯 My Areas of Expertise: - 2D and 3D Gameplay Development (Unity + C#) - Mobile Games, VR Games, PC/Web Games (Unity WebGL) - UI/UX Design for games (smooth menu flow, HUD, popups, etc.) - Performance Optimization (Mobile & VR) - Google Play Store/ App Store Setup (Ads, IAPs, Compliance) - Particle Effects, Animation Setup (2D Spine / 3D Rigging) - Save Systems (JSON, PlayerPrefs) - Custom Sound & Music Integration - VR Development (Android VR, Vuforia-based apps) 🛠 Tools I use: - Unity Engine - Blender (3D Modeling & Rigging) - Spine 2D (Character Animation) - Adobe Photoshop (2D Art, UI assets) AI Support Tools (ChatGPT, Cursor, GitHub, Plastic SCM) 🚀 Publishing Experience: - Published multiple mobile games to Google Play and App Store. - Developed and published a VR Game on Steam: LyokoVR. I am passionate about creating games that are fun, immersive, and perform beautifully across all platforms. Let’s collaborate and turn your ideas into a game that players will love! 📩 Feel free to send me an invite — I’m ready to get started!

  • Game Design
  • Game
  • App Development
  • Mobile Game
  • Product Development
Thanh Minh L.

Ho Chi Minh, Vietnam

$60/hr
4.9
99 jobs

Delivered 𝟯𝟰,𝟬𝟬𝟬+ 𝗵𝗼𝘂𝗿𝘀 of professional services to 𝟵𝟬+ 𝗰𝗹𝗶𝗲𝗻𝘁𝘀, help them run DevSecOps Cloud infrastructure and build production-grade applications. My dual expertise in DevSecOps and software architect enables clients to benefit from both roles in a single hire. ⚙ DevOps Engineering • Built end-to-end CI/CD pipelines, automating the software delivery lifecycle. • Deployed Kubernetes clusters to support containerized applications at scale. • Automated infrastructure provisioning and configuration management using Terraform and Ansible. • Built and integrated monitoring and alerting systems to ensure reliability, performance, and proactive incident response. 🏗 Solution Architect • Architected high available, resilient, and high performance Cloud deployments across AWS, GCP, Azure. • Developed and implemented cost optimization plans on AWS cloud, helping clients stay within budget. • Designed system that compliant with security framework such as SOC2 and HIPAA. • Write code... 🌐 Web Development • Built scalable, production-grade backend services with Node.js and TypeScript • Designed RESTful and GraphQL APIs for seamless integration with web, mobile, and third-party apps. • Integrated SQL/NoSQL databases, optimized queries, and applied caching for performance. • Implemented secure authentication, authorization, and middleware to meet enterprise security needs. 📱Mobile Development: • Built cross-platform mobile applications using Flutter and Xamarin, delivering seamless user experiences across iOS and Android. • Specialized in building mobile apps integrated with BLE/IoT devices, enabling real-time connectivity and device interaction. 🙋 Why Me? • Trusted by 𝟵𝟬+ 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 • 𝟯𝟰,𝟬𝟬𝟬+ 𝗵𝗼𝘂𝗿𝘀 delivered on successful projects • 100% positive client testimonials • Recognized as Top Rated Plus Upwork in Enterprise Talent Clouds 🎖Certifications • AWS Certified - DevOps Engineer & Solution Architect • CKA Certified - Certified Kubernetes Administrator 🛠 Tools and Technologies ⚙DevOps: • Cloud: AWS, Google Cloud Platform, Azure • Containerization: Kubernetes, Docker, K3s, Rancher • Configuration Management: Terraform, Ansible, Bash • CI/CD: Jenkins, Gitlab CI, GitHub Action, Bitbucket Pipelines, Nexus, Jfrog • Monitoring: Prometheus, Loki, ELK, Datadog, Grafana • Testing: Selenium, Playwright • Code Quality and Security: SonarQube, Checkpoint, Vault • Distributed Streaming: Kafka, Zookeeper, Flink 📱Mobile Development: • Flutter: Dio, sqflite, Provider, BLoC, MobX, GetX, Mockito, Bitrise, AppCenter • Xamarin: Realm, SQLite, Flurl, Prism, ReactiveUI, Syncfusion, Telerik, NUnit ✅ Need support with cloud deployment or building your next innovative product? ✉ Let’s connect and make your ideas a reality!

  • Xamarin
  • Flutter
  • Amazon Web Services
  • Bluetooth
  • Dart
  • DevOps
  • Clean Architecture
  • Kubernetes
  • Docker
  • Containerization
  • Bluetooth LE
  • Terraform
  • Ansible
  • Google Cloud Platform
  • Solution Architecture
An N.

Hanoi, Vietnam

$30/hr
5.0
81 jobs

🔹 AI Engineer | Computer Vision | Edge AI | GPU Optimization | C++ Developer I’m an experienced AI Engineer specializing in Computer Vision with 5+ years of hands-on experience in: ✅ Image & Video Processing – OpenCV, custom algorithm development, real-time analytics ✅ Deep Learning Models – building, training, and deploying models to production ✅ Nvidia GPU Optimization – accelerating inference for high-performance applications ✅ C++ Application Development – real-time AI inference apps on edge devices (e.g., face recognition, posture monitoring, video analytics) ✅ Edge AI Deployment – converting & deploying models on Raspberry Pi, Jetson Nano, Jetson Orin for production-level solutions ✅ Android and iOS models development- training, converting, and implementing inference native code that runs on the device ✅ LLMs & MCP – experience working with large language models and advanced AI systems 💡 I’ve worked on projects ranging from self-driving cars to face recognition systems, always focusing on creating practical, real-world solutions. ✨ What you can expect when working with me: Clean, efficient, and optimized code (Python & C++) End-to-end AI solutions: from research & prototyping to deployment Clear communication and a collaborative mindset I’m passionate about solving complex problems with AI and enjoy working with clients who want to bring cutting-edge technology into real-world applications. 🚀 Let’s work together to turn your idea into a production-ready AI solution!

  • PyTorch
  • C++
  • OpenCV
  • Deep Learning Modeling
  • TensorFlow
  • NumPy
  • Computer Vision
  • Image Processing
  • Raspberry Pi
  • Python Script
  • Linux
  • RESTful API
  • Docker
  • Rust
Hieu V.

Binh Duong, Vietnam

$25/hr
4.6
4 jobs

Hi, I am an experienced game developer with over 8 years in the industry, specializing in Unity, multiplayer systems, and 4 years in blockchain development. My expertise covers building games from the ground up, shipping titles on iOS, Android, and WebGL, and delivering innovative Web3 and NFT features. Recently, I developed core gameplay systems and a horror game mode for Shmackle, a VR multiplayer game for Meta Quest. In this project, I focused on networked gameplay using Photon Fusion 2, procedural content, and blending action, horror, and comedy elements for a unique player experience. I led a development team, managed technical direction, and ensured seamless integration of technologies like PlayFab, Firebase, and Web3 solutions. My leadership experience includes mentoring junior developers, setting coding standards, and collaborating closely with designers and artists to deliver high-quality games. I am highly adaptable, quick to learn new technologies, and thrive in creative and dynamic environments—whether it’s working on cutting-edge VR projects, integrating blockchain, or building scalable multiplayer systems. Thank you for considering me for this opportunity. I look forward to discussing how I can contribute to your project. If you hire me: - Startup time (time spent setting up the project and understanding requirements) will not be billed. - I have a MacBook Pro / PC, allowing me to build your game for macOS and iOS. - I own both Android and iPhone devices for testing mobile games. - I am available on weekends and can work overtime if needed.

  • Node.js
  • Unity
  • Laravel
  • Game Prototype
  • Firebase
  • Game
  • Telegram
  • Telegram API
  • Web3
  • Blockchain, NFT & Cryptocurrency
  • Blockchain
  • Photon Unity Networking
  • App Store Upload
  • Google Play

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