Hire the Best .NET Framework C# Engineers
in Argentina

👨‍💻 About Me I'm a Senior Software Engineer & Technical Leader with over 7 years of experience delivering scalable, high-performance web applications and APIs. I specialize in Next.js, React, NodeJS, .NET Core and Angular. 🧩 Core Skills Frontend: React, Angular, Next.js, Bootstrap, MUI Datagrid, Tailwind CSS Backend: .NET Core, Node.js Databases: SQL Server, MongoDB, Redis Dev Tools: Git, Azure DevOps, Docker, CI/CD pipelines 🔌 API Integration Expertise I have extensive experience integrating third-party services like: Stripe (payments) Calendly (scheduling) Auth0 (authentication) Facebook API (social platforms) These integrations are implemented with performance, security, and long-term maintainability in mind. 👥 Leadership Experience As a Technical Leader, I’ve: Led a team of 10 developers on an e-commerce builder platform Designed software architecture and improved backend performance Prioritized product requirements with stakeholders Conducted code reviews and mentored junior developers ✅ What You Can Expect Clean, maintainable code Reliable API integrations Performance-focused backend systems Clear communication and on-time delivery Let’s work together to bring your product vision to life!

My name is Alejandro Martin. I am Systems Enginering. I have more than 7 years of experience developing in .net c# and three years leading teams in new projects. I have experience using winform, webform, wpf, .net mvc, webapi, swagger, azure, sql server, mysql, javascript, jquery, vuejs, angular, react and git

Looking for a developer who understands Computer Science principles, not just syntax? I am a final-year Computer Engineering student specializing in Backend Development with .NET (C#) and Data Management. My background allows me to build robust, scalable, and clean solutions for your software needs. I don't just "write code"; I solve logic problems. Whether you need to fix a bug in your API, optimize a SQL query, or build a backend module from scratch, I bring an engineering mindset to every task. 💻 Technical Stack & Services: Backend Core: C#, .NET Core / ASP.NET, MVC Architecture. Databases: SQL Server, SQLite, PostgreSQL, MySQL (Entity Framework Core). API Development: RESTful APIs design and implementation. Logic & Scripting: Complex algorithms, data structures and automation. Tools: Git/GitHub, Visual Studio. 🚀 Recent Projects: WeAreKanban: A full-stack MVC task management app with user authentication and drag-and-drop features. Chaos Order (RPG): A complex console-based RPG game demonstrating advanced Object-Oriented Programming (OOP) and logic. 👨‍🏫 Why work with me? Communication: I was a University Teaching Assistant, so I know how to explain technical concepts clearly. Language: Fluent in English (B2) and Native Spanish. Reliability: As an engineering student close to graduation, I am disciplined, detail-oriented, and deadline-driven. Let's discuss how I can help you move your project forward. Click "Invite to Job" and let's chat!

As a seasoned full-stack software developer and site reliability engineer, I have extensive experience in improving system architecture, refactoring legacy code, and managing product design and development roadmaps. I am skilled in a variety of programming languages and tools, including JavaScript, C++, Java, Python, Node.js, PHP, and Bash, microservices, and functional and declarative programming using tools such as Ramda and Maybe. I have also developed fully functional mobile apps and websites using React, React Native, Next.js, Remix, Tailwind CSS, and Angular, along with technologies such as RxJS, MobX, and Redux to manage states and actions. I have extensive experience in LLM prompt design and optimization, agentic workflows, and full-cycle AI automation development. I have contributed to the AI ecosystem in several projects, such as: - A MCP server for preventing loops and stuckness in agent execution workflows: mcp-dual-cycle-reasoner - A Python / Node.js framework for prompt management, versioning, and testing: Prompt Assembly Language (PAL) In addition, I possess a dynamic and constantly evolving background in machine learning and deep learning, with a particular focus on developing and training neural networks, GPT, Transformers, and computer vision projects. My passion for this field extends to my recent exploration of RNN & VAE models trained for music generation. Throughout my career, I have prioritized security in all of my work and have a deep understanding of best practices and technologies related to cybersecurity and cloud infrastructure, having worked with various platforms such as AWS, DigitalOcean, and Google Cloud. I am skilled in building systems from the ground up, with a focus on user interaction and the implementation of different paradigms and coding practices. Here are some of the technologies, languages, and libraries that I am proficient in: - Javascript - Typescript - Node (Express, NestJS) - React, React Native, NextJS, Remix - WebRTC and peer connectivity (LibP2P) - Angular - Web3 (ethers, web3, Alchemy, Infura) - nanoGPT, LLaMa (LoRa, Alpaca), LangChain, LangGraph, RNN, HuggingFace Transformers - PyTorch, HuggingFace, bitsandbytes - Solidity - Ethereum (L1, L2) - AWS (Route53, ECS, Fargate, Lambda, IAM, etc) - Python (FastAPI, Pandas, SciKit-learn, numpy, etc) - Dart, Flutter - Ngrx, Mobx, RxJS, Redux, Saga, Reselect - Mongodb - Redis - SQL, MySQL, PostgreSQL - Bootstrap, Material, Native Base - Less, SCSS, CSS, Tailwind, Material-UI - C++, Java, C# - R - Objective-C - Android, iOS - Meteor - Net - And many more...

Is your PrestaShop store broken, slow, or missing a key feature? I'll fix it — fast, clean, and with clear communication throughout. I'm a PrestaShop specialist and Full Stack Developer with 5+ years of hands-on experience building custom modules, migrating stores, configuring VPS servers, and solving complex bugs in production environments. I currently work as a Software Engineer at Mercado Libre — Latin America's largest tech company — which means I build and maintain systems at scale every day. On Upwork: 100% Job Success Score, Rising Talent badge, and a track record of delivering on time and communicating proactively. ────────────────────────────────── PRESTASHOP — What I can do for you: ────────────────────────────────── ✔ Custom module development (PS 1.6 / 1.7 / 8.x) ✔ Theme customization & complete store redesigns ✔ VPS setup, NGINX/Apache configuration & SSL ✔ Store migrations (version upgrades or server changes) ✔ Bug fixes: cache conflicts, session errors, white screens, hook issues ✔ Performance optimization (Redis, caching layers, DB queries) ✔ Payment gateway & third-party API integrations ────────────────────────────────── FULL STACK — Beyond PrestaShop: ────────────────────────────────── ✔ React / Next.js frontends (Redux Toolkit, Zustand) ✔ PHP backends with Symfony ✔ Node.js / Express APIs ✔ .NET 8 + Entity Framework + Microservices ✔ MySQL, PostgreSQL, Redis, ElasticSearch ✔ CI/CD pipelines with GitHub Actions & Docker ────────────────────────────────── WHY CLIENTS CHOOSE ME: ────────────────────────────────── → I respond within 4 hours and keep you updated at every stage → I write clean, documented code — not quick patches that break later → I've handled both small urgent fixes and long-term development projects → English (conversational) + Spanish (native) — no communication barriers Whether you need a quick bug fix or a full store rebuild, I'll make sure the job is done right. Let's talk about your project.

Software Engineer/Full Stack Developer PROFESSIONAL OBJECTIVES I seek to learn more and prepare for professional life, always being responsible with my tasks and meeting established deadlines. I really want to learn new technologies and be efficient when working.