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Freelance C# Developer - Adrian Segui
Freelance C# Developer5.0 (232 reviews)

Working in the IT sector for more than 10 years. With over 10 -years of freelancing and professional experience taught me all kinds of frameworks and languages, ranging from React, Angular, Vue, Node js, Express js, React Native, Redux, Rx JS, JavaScript, Typescript, WordPress, PHP, MySQL, MongoDB, Firebase, Sqlite, Postgresql, ES5+, Python3, Machine Learning, Deep Learning, RNN, CNN, Android Java/Kotlin, iOS Swift/SwiftUI, C/C#/C++, .Net, Assembly, VBA, VB, Excel Macro, Java, Spring Boot Micro-services, Zoho, Salesforce, Hubspot, R, Shiny, STATA, MATLAB, Google Sheet, App Script, Bubble io, etc. Over my long career, I have come across all kinds of challenges and gained vast experience with different kinds of industries like portals, medical industry, perception exercise, employee management, etc. I have good experience with frontend development using React JS along with Typescript, Firebase, GraphQL, React Native, Native Script, React, Material UI, Ionic, Node.js, Web Sockets, and real-time communication. I have also worked on containerization technologies like Kubernetes, Docker, AWS, GCP, Azure etc. I am very good with backend technologies as well like Java Spring boot, Microservices, MySQL, Postgres, Elasticsearch, AWS/Google integration. Please contact me to get the result done in a professional way.

Freelance C# Developer - Kodaolu Idris Aremu
Freelance C# Developer5.0 (121 reviews)

Engineer with a strong sense of appealing user interfaces, efficient software design, and outstanding online platforms. I use my stack to create scalable and high-performing web solutions. I am a full-stack software engineer who is passionate about creating amazing products and collaborating with other exceptional engineers to find quick fixes for issues.

Freelance C# Developer - Emmanuel Nwanochie
Freelance C# Developer5.0 (7 reviews)
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I'm a Highly accomplished and results-oriented Engineer with extensive experience in **Full-stack Development, Artificial Intelligence (AI), Cloud Computing, and MLOps/AI** Pipelines I help engineers here—especially those early in their journey—build real-world skills through code reviews, system design, and project guidance. My approach is grounded in clarity, scalability, and long-term growth.

Freelance C# Developer - Kishore Muniyandi
Freelance C# Developer5.0 (9 reviews)

Hi, I’m Kishore — a Full-Stack Developer & Certified Security Architect with 14+ years of experience building secure, scalable, and user-friendly software solutions. I specialize in: Web & Mobile Development: React, Angular, ASP.NET, C#, Java, Android APIs & Databases: REST APIs, SQL Server, MySQL, MongoDB Cloud & DevOps: Azure, AWS, CI/CD, Docker Security: Applying industry-approved best practices to protect your data I’ve delivered management systems, e-learning platforms, inventory solutions, and mobile games, ensuring smooth functionality and a great user experience. My focus is on clear communication, fast problem-solving, and writing clean, maintainable code. Whether you need bug fixes, performance optimization, code review, or end-to-end development, I can help you get your project back on track and working flawlessly. 📩 Let’s connect and solve your challenges together!

Freelance C# Developer - Qaiser Mehmood
Freelance C# Developer5.0 (7 reviews)

I don't just write code — I **define the architecture**. For over two decades I've been the person CTOs and lead developers call when a system is *failing under load*, a migration is at risk, or an AI integration needs to be done **right the first time**. With **21 years** of hands-on architecture experience, I specialize in **C#, .NET, Blazor, ASP.NET Core, SQL, Python**, and AI agents built with **Semantic Kernel, LangGraph, and custom tool-calling pipelines**. I design and deliver systems where performance, reliability, and intelligent automation aren't optional — they're the baseline. I've helped teams migrate from legacy .NET Framework to .NET 8, integrate AI into production pipelines, and recover systems failing under scale — without full rewrites. I've shipped AI to **production** — not to a Jupyter notebook. I'm the creator of **FreeAIVoice** ([freeaivoice.com](https://freeaivoice.com)) — a live AI voice platform with AI Voice Generation, Voice Cloning, and Speech-to-Text across **30+ languages** and a developer API. I know what it takes to build AI products that handle real users, real traffic, and real failure modes. --- **Here's where I'm most useful to you:** - **The AI Integration Trap** — You've been asked to add AI to your existing .NET system but don't know whether to use *Semantic Kernel*, raw OpenAI APIs, or a Python sidecar. I've made that decision dozens of times. I'll make it faster and safer for you. - **The Blazor Bottleneck** — Your Blazor app is slow, state management is tangled, and you're unsure if you chose *Server or WASM* incorrectly. I can diagnose what went wrong and map a clean path forward — often in a single session. - **The Legacy Modernization Cliff** — You have a 10-year-old .NET system that needs AI or modern tooling but wasn't designed for it. I specialize in *incremental refactoring paths* that don't require a full rewrite and don't break what's already working. --- **What I Do Best:** - **Software Architecture & System Design** — scalable, maintainable systems from greenfield to enterprise - **AI Agent Development** — production-grade agents with Semantic Kernel, LangGraph & AutoGen — *not demos* - **Blazor & ASP.NET Core** — Server, WASM, hybrid — full-cycle development and performance tuning - **Python & AI Automation** — RAG pipelines, workflow automation, voice AI, LLM integrations - **Legacy .NET Modernization** — refactoring strategy, migration paths, incremental upgrades - **Architecture Audits & Code Reviews** — identifying structural risks before they become production incidents - **Debugging Complex Systems** — when the stack trace doesn't tell the whole story

Freelance C# Developer - Andrei Aguiar Müller
Freelance C# Developer5.0 (65 reviews)

Hello! If you need help with game development, I'm here to help you find (and learn) effective techniques and solutions for your projects. As a mentor, I can help you with **Technical Guidance** (assistance with coding, debugging, optimization), **Design Insights** (feedback on mechanics, level design, UI), **Asset Advice** (guidance on using time-saving assets/tools), and **QA** (thorough testing and bug tracking), among other topics. I can answer questions on topics such as **Development Challenges** ("How can I optimize my game for better performance?"), **Design Decisions** ("How to improve the game UX?", "What mechanics can make my gameplay more engaging?"), and **Troubleshooting** ("Why is my game crashing on startup?", "Why is my game build failing?", "How do I fix this bug in my C# code?"), among other topics. --- I've been a Game and Software developer since 2010. I have 10+ years of experience with Unity, C#, and Game Design, and I'm constantly updating my skills. I also have experience with Unreal Engine 5, Level Design, 3D Modeling, and Mobile Development. I developed games for PC and Android. My background includes working on: ● SAK'D (2D metroidvania game, demo released on Steam) ● NekoSuki! ~ Kitty Love Adventure (action-adventure game, in development) ● Time Master (puzzle-platformer game, released on Steam) ● Baneville (an educational game for Brazilian schools) I have knowledge and experience with: ● Unity, C#, async-await (UniTask), advanced programming concepts ● Unreal Engine 5, Blueprints, C++ ● Godot Engine, RPG Maker, GameMaker, Ren'Py ● Game Design, Level Design, UI Programming, Game Optimization, QA ● Unity Addressables, Timeline ● Third-party assets and plugins: Platformer Project, Corgi Engine, ORK RPG Framework, Game Kit Controller, World Streamer 2, DoozyUI, RealtimeCSG, Rewired, Animancer, RealToon, Dialogue System for Unity, MicroSplat, MicroVerse, etc. ● Blender, VRoid Studio (3D Modeling, Rigging, Skinning, Animation) ● Photoshop, Krita, GIMP (Texturing, Image editing) ● Wwise Audio Middleware ● Generative AI: Stable Diffusion, ComfyUI, SwarmUI, NovelAI ● Mobile Development: Android (native), iOS (native), Flutter, Xamarin, Xamarin.Forms ● Kotlin, Swift, Dart, Java, Python

Freelance C# Developer - Ahsan Zia
Freelance C# Developer5.0 (420 reviews)

Experienced Software Engineer with 7 years of professional experience in mobile and web application development, architecture design, and technical leadership. Proven track record of delivering high-quality software applications, leading teams, and mentoring developers to adopt best practices and delivering on time. Skilled in modern development frameworks, and emerging technologies such as Apple Vision, DockKit, AI Integrations to build immersive and adaptive app experiences. Strong full-stack capabilities with expertise in backend systems, RESTful APIs, cloud services, and cross-platform integrations. Experience with collaborating with clients internationally for complex projects, and ensuring scalable and maintainable software solutions. Please send me a message or schedule a session before connecting for a call.

Freelance C# Developer - Ammar Canani
Freelance C# Developer5.0 (1 reviews)

🚀 Turning Boring into Brilliant I specialize in automating the mundane and transforming inefficiency into opportunity. I sell a powerful ERP + POS system that streamlines operations, teach Python and Excel with real-world flair, and serve as the Technical Advisor for the Systems Development course at the University of Cape Town. Whether it's simplifying workflows or mentoring future tech leaders, I'm all about creating smarter, faster ways to get things done.

Freelance C# Developer - Gopi P
Freelance C# Developer5.0 (5 reviews)

I'm an avid developer who encourages **Learn and share** methodology. I always believe that _sharable knowledge is worth_. I've _visited various colleges and university to train students for their placements and higher studies_. The timer won't start until I understand the issue/request completely and if I cant fix the issue will refund the money completely.

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Frequently asked questions

How long do C# projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance C# project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance C# request on Codementor, check out our article.

How much does it cost to hire a freelance C# developer?

We don’t charge anything when you post a freelance hiring request for C# developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor C# developers different?

We do a comprehensive technical and communications screen of all C# developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing C# developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your C# project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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