Senior .NET Engineer with 16 years of experience building and fixing complex web applications, specially integration-heavy systems. I mostly work on systems where things are already in production but difficult to change — involving APIs, third-party integrations, SFTP/EDI flows and legacy codebases. What I can help with: • Stabilizing and fixing broken or unreliable integrations (APIs, file-based, external systems) • Refactoring legacy .NET applications without breaking existing functionality • Designing clean backend architecture and service layers • Improving logging, debugging and overall system visibility • Removing or replacing costly/rigid third-party dependencies Tech stack: C#, ASP.NET Core / MVC, Web API, SQL Server, JavaScript, Angular, Azure (App Services, Storage, Functions), Docker, Azure DevOps (CI/CD pipelines) I have worked on web apps, services, background jobs and cloud-based solutions, including deployment pipelines and containerized environments. I usually focus on understanding the actual business flow first, then making changes in a safe and controlled way so production systems remain stable. If your system is getting hard to maintain, risky to change or integrations keep breaking, I can help bring it under control.

🔵 14+ years developing first-class web, mobile and AI apps that achieve business goals and hit the mark. As an AI developer and web developer, my expertise led my team to work with Fortune 500 companies such as Philip Morris, Coca-Cola, DANONE, McDonald’s (Ukraine), and Kimberly-Clark. I started as a programmer in 2006. Now, I'm CTO at Brights — a software company focused on web, mobile and AI products, with 120+ Mobile app developer s and Web developer s who specialize in AI Chatbot systems, advanced AI Integration solutions, AI Saas and Mobile app development. As a deal closer, I also work closely with clients during product strategy and delivery. At Brights, we support companies through every stage of development backed by experienced AI developer, AI Chatbot, AI API Integration, Mobile app developer, and web developer — from MVPs to scaling including AI developer | AI Chatbot | AI API Integration | Mobile app developer. Our experience includes API integration, complex API integrations, and enterprise-grade AI API Integration. Within the last 14 years, I have delivered 300+ projects across fintech, insurtech, healthcare, eCommerce, real estate, education, logistics, and more as an AI developer | AI Chatbot | AI API Integration | Mobile app developer. 👩‍💻 Technical stack I cover as an AI developer | AI Chatbot | AI API Integration | Mobile app developer: Front-end: • Vue.js, React, Angular, Next.js, Redux, react native Back-end: • ASP.NET, PHP, Node.js, GraphQL Mobile: • React Native, iOS, Android, with support from a dedicated Mobile app developer and Flutter developer as well as Mobile game developer Artificial Intelligence tech stack I cover as an AI developer | AI Chatbot | AI API Integration: • Python developer workflows, LangChain, GPT-4o, gpt-3, OpenCV, Hugging Face, RAG, LLM, AI machine learning, and scalable machine learning pipelines Data & Architecture: • PostgreSQL, MongoDB, Redis, Elasticsearch for both mobile app marketing and web • Supported by experienced data scientist and full stack developer teams Integrations: • Analytics, CMS, Swagger, botpress, chatbots, AI API, and automation systems with reliable API integration If you are looking for AI developer | AI Chatbot | AI API Integration or Mobile app developer with strong mobile app design experience (Figma mobile app) - drop me a line.

✌✌Top Rated Professional + 100% Job Success Ratio✌✌ If 15 years as a lead developer turned solution architect sounds amazing, I am still learning while keeping a keen watch on technological advances. From SAAS-based business automation (ERP, CRM, industry-specific applications) to building a portfolio in niche domains like: 👉👉Healthcare and Logistics, Aviation, and AI, I have worked as a freelancer, team lead, and technical advisor as and when required. **Though I love developing applications from scratch, I have an ample amount of work that includes** ✔ Working in collaboration with remote teams, offsite and onsite (Global Clients, Australian/US clients) ✔Migration of legacy applications as per Object Oriented Design, intuitive Single Page Application (SPA) interface with Angular 6, .NET Core, SQL SERVER 12/14, and Azure services. ✔Data analytics: PowerBI, SSRS, Tableau, DevExpress Reporting, Upscaling existing applications (features and performance enhancement, database management, etc.) ✔Entity Framework, ADO.NET, and API/ Microservices development **Withstanding a decade-long technology advancement, there is more to what I can offer if you are a well-established business having a large customer base.** 👉Setting up your cloud infrastructure with Azure and AWS to avail shared and multi-tenant services so that you can handle unpredictable changes in user demand and balance across servers. 👉 Set up proper logging and monitoring to catch any performance problems or errors before they affect your business negatively. 👉 Set up continuous integration or track down and eliminate bugs to eliminate the possible human errors while deploying the new versions. Apart from this, on-time delivery, a quick turnaround, and no-fuss behavior have earned me a good reputation and consistent client collaborations/Projects worth a few weeks to years🤗 And what's better than client feedback? Check reviews and the volume of work on my profile for various projects undertaken and successfully delivered. Please ping me for a great work experience, I look forward to helping you scale!

Full-Stack Developer with 11+ years of experience building scalable SaaS platforms, enterprise applications, cloud-based systems, APIs, and modern web applications. I help startups, SaaS companies, and enterprise businesses develop secure, high-performance, and scalable applications using .NET Core, React, Angular, Node.js, Azure, and AWS. 🥇 100% Job Success Score 🕐 9,200+ Upwork Hours ✅ 50+ Successfully Delivered Projects ✅ Long-Term Client Relationships ✅ Enterprise-Level Development Experience I specialize in designing and developing complete end-to-end solutions that are scalable, maintainable, and production-ready. 🏆 Expertise ✔ Full-Stack Web Applications ✔ SaaS Platforms ✔ Enterprise Systems ✔ REST APIs & Microservices ✔ Cloud Architecture & Deployment ✔ Dashboard & Admin Panel Development ✔ AI Integration & Automation ✔ Real-Time Applications ✔ External Service Integrations ✔ Performance Optimization Backend Technologies • C# • ASP.NET Core • .NET Core MVC • Web API • Node.js • Express.js • NestJS • Entity Framework • Microservices Architecture Frontend Technologies • React.js • Angular • Next.js • TypeScript • JavaScript • Redux • RxJS • HTML5 • CSS3 • Tailwind CSS • Bootstrap • Material UI • Ant Design • Angular Flex-Layout • Figma to HTML • Responsive Design • iOS, iPad & Material Design Compatibility • i18n Cloud & DevOps • Microsoft Azure • AWS • Azure DevOps • CI/CD Pipelines • Docker • Cloudflare • GitHub Actions Data Visualization & UI Components • AG Grid • Chart.js, D3.js • DevExpress • Telerik • Kendo UI • PrimeNG Database Technologies • MSSQL • PostgreSQL • MongoDB • MySQL • Redis AI & API Integrations • OpenAI API • Cursor AI • Claude AI • Gemini AI • Stripe • PayPal • Twilio • SendGrid • Google API • Payment Gateway Integrations Tools & Collaboration • JIRA, Trello, Asana, YouTrack • GitHub, Bitbucket Why Clients Work With Me • Clean and maintainable code • Strong communication and quick response • Business-focused development approach • Reliable delivery and deadline commitment • Long-term collaboration mindset • Startup and enterprise experience I focus on building high-quality applications that help businesses scale efficiently and improve user experience. Available for long-term contracts, SaaS development, enterprise systems, cloud applications, and AI-powered solutions. Let’s discuss your project and build something exceptional. Senior .NET Developer · Full Stack Developer · ASP.NET Core Developer · C# Developer · .NET Core Developer · .NET 8 · .NET 9 · ASP.NET Core Web API · REST API Developer · Microservices Developer · Azure Developer · Azure Cloud Engineer · Full Stack .NET Developer · Angular Developer · React Developer · React.js Developer · Angular 19 · React 19 · TypeScript Developer · C# · ASP.NET Core · Entity Framework Core · LINQ · SQL Server · PostgreSQL · Redis · RabbitMQ · Azure · Azure DevOps · Azure Functions · Docker · Kubernetes · GitHub Actions · CI/CD · Web API · RESTful Services · Microservices Architecture · Event-Driven Architecture · Distributed Systems · Clean Architecture · SOLID Principles · Design Patterns · Repository Pattern · Unit of Work · JWT Authentication · OAuth 2.0 · OpenID Connect · SignalR · gRPC · OpenTelemetry · Serilog · Elasticsearch · Angular · Angular Material · PrimeNG · RxJS · NgRx · TypeScript · JavaScript · HTML5 · CSS3 · SCSS · Bootstrap · Tailwind CSS · Responsive Design · React.js · Next.js · Redux Toolkit · TanStack Query · Context API · Hooks · Material UI · GraphQL · SPA Development · Unit Testing · xUnit · NUnit · Jest · React Testing Library · Agile Scrum · Secure Coding · Scalable Applications · Cloud-Native Applications

✅ 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝟳-𝟴 𝗳𝗶𝗴𝘂𝗿𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀 & 𝗦𝗮𝗮𝗦 𝗰𝗹𝗶𝗲𝗻𝘁𝘀/𝗮𝗽𝗽𝘀 𝗮𝗰𝗾𝘂𝗶𝗿𝗲𝗱. ✅ 𝟳𝟱+ 𝗮𝗽𝗽𝘀 𝗯𝘂𝗶𝗹𝘁. 𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. ✅ 𝗔𝗰𝗰𝘂𝗿𝗮𝘁𝗲 & 𝗴𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱 𝗾𝘂𝗼𝘁𝗲𝘀 𝘄𝗶𝘁𝗵 𝟯𝟬-𝟰𝟬% 𝗹𝗼𝘄𝗲𝗿 𝗰𝗼𝘀𝘁𝘀 𝗮𝗻𝗱 𝗱𝗲𝘃 𝘁𝗶𝗺𝗲𝘀 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗽𝗿𝗼𝗽𝗿𝗶𝗲𝘁𝗮𝗿𝘆 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 𝘂𝘀𝗲(prebuilt-SaaS code). ✅ 𝗣𝗵𝗲𝗻𝗼𝗺𝗲𝗻𝗮𝗹 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝘀𝗸𝗶𝗹𝗹𝘀. 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗱𝗲𝘃 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗳𝗼𝗹𝗹𝗼𝘄𝗲𝗱 𝗯𝘂𝗶𝗹𝘁 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗼𝘁𝗵𝗲𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀. ✅ 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲-𝗿𝗲𝗮𝗱𝘆 𝗳𝗿𝗼𝗺 𝗹𝗮𝘂𝗻𝗰𝗵. ✅ 𝗨𝗦 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝘆. Hi, I’m Andrew! I specialize in delivering polished SaaS apps consistently focused on earning revenue. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗮𝗻𝗱 𝗶𝗳 𝘁𝗵𝗲𝗿𝗲’𝘀 𝗮 𝗹𝗶𝗸𝗲𝗹𝗶𝗵𝗼𝗼𝗱 𝗼𝗳 𝗮 𝗴𝗼𝗼𝗱 𝗳𝗶𝘁 𝘁𝗼 𝘄𝗼𝗿𝗸 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿, 𝗜’𝗹𝗹 𝗶𝗻𝘃𝗶𝘁𝗲 𝘆𝗼𝘂 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮 𝗰𝗼𝗺𝗽𝗹𝗶𝗺𝗲𝗻𝘁𝗮𝗿𝘆 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🗣 𝗝𝗼𝗵𝗻 𝗠𝘂𝗹𝗹𝗲𝗻𝗵𝗼𝗹𝘇 - 𝗛𝗲𝗮𝗱 𝗼𝗳 𝗦𝗮𝗹𝗲𝘀, 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 - 𝗨𝗯𝗲𝗿 𝗘𝗮𝘁𝘀 ❝ Andrew is the most skilled freelancer and developer I have ever worked with, and I have worked with a lot. He was able to take very broad ideas and turn them into actionable insights and plans in a way I could never imagine was possible. Andrew is the best possible thing to happen to our business and the definition of a true professional. I could not recommend him enough. Anyone who has the opportunity to work with Andrew should consider themselves extremely lucky. ❞ I excel at expertly guiding the app dev process to max out your revenue-earning potential in contrast to your costs, and to steer you away from common SaaS app pitfalls. Client Outcome Examples: ⚡ amzalert.com (8-Figure Acquisition - Rebuilt In 4 Months) ⚡ launchcontrol.us (8-Figure Annual Recurring Revenue - ARR) ⚡ GuestBan.com (Concept-To-Live in 5 Months - 1M+ Monthly App Checkins) My support is based on hard-won successes built through more than a decade of SaaS app obsession. Most of my clients are: ☑️ Existing Businesses - Post-revenue ☑️ Solopreneurs & Small Teams - Wanting to build an MVP app ☑️ Funded Startups - Focused on turning funding into MRR ☑️ Existing Early Stage SaaS - Want to rebuild and scale up I’m the founder of a small, hand-picked team of talented humans. I’m personally involved in all projects, and we only employ senior developers and native English speakers from the US for project management and communication. My team and I are able to consistently reduce dev costs by about 30-40% by leveraging pre-built development frameworks for common app experiences like the user login or checkout, for example, while reserving valuable dev hours for truly custom functionality. Every project we build delivers: 📱Cross Device Compatibility - Desktop - Mobile - Tablet 📈 App Speed Optimization 🧩 Scaleable - Cost-Effective Feature Addition Potential 🛡️ Security 📊 User Analytics & Internal Dashboards 🌐 Multi-Language Localization 🤖 Quality Assurance - QA 📜 Paid User Subscription, Billing & Renewal Management Thanks for taking the time to learn more about me. Invite me to your project or send me a direct message if you’re interested in working together. Talk soon! Andrew Mace - Founder - Lean Engineering Highlights of the work I have extensive experience in includes: SaaS MVP • AI Automation • No-Code/Low-Code • Process Automation • RPA • .NET 8 • Python • AWS • Azure • Docker • Serverless • OpenAI / ChatGPT • Generative AI • Zapier • Make.com • UiPath • Power Automate • n8n • Bubble • Airtable • Stripe • PayPal • Twilio • Slack • Teams • REST APIs • Webhooks • SQL • PostgreSQL • Redis • Power BI • KPI Dashboards • ETL • Airflow • Real-Time Chat • Push Notifications • Subscription Billing • CRM Integration • Lead Generation Bots • Data Analytics • Digital Transformation • Workflow Automation • Rapid Prototyping

Looking for a Senior .NET & Azure Expert who can turn your complex business logic into high-performance, scalable applications? Let’s talk. I am a 🌟Top Rated Senior Software Engineer with over 4 years of experience delivering robust enterprise solutions, modern web apps, and cross-platform mobile environments. Whether you need to build a secure cloud microservice, migrate legacy macros to modern C#, or integrate cutting-edge AI capabilities into your system, I design architecture that scales. 👉Why Clients Work With Me: ✅Top Rated Status & 100% Commitment: A proven track record of 700+ hours of clean, maintainable code and successful deliveries. ✅Cloud & AI-Driven Solutions: Seamless integration with Azure Cloud and custom AI modules to future-proof your business. ✅Full-Stack .NET Ecosystem Mastery: Expert-level command over C#, .NET 10, Web APIs, EF Core, CQRS, and Vertical Slice Architecture. ✅Modern Frontends: High-performance UI development using Blazor or Angular (Signals, Tailwind CSS v4, PrimeNG). 👉What I Can Do For Your Business: ✅Enterprise Web Apps: Blazor & Angular dashboards with real-time data handling. ✅Cross-Platform Mobile: Native-performing iOS/Android apps using .NET MAUI. ✅Microservices & Event-Driven Architecture: Distributed systems built with Kafka, AWS Lambda, or Azure Functions. ✅Legacy Modernization: Upgrading old systems and heavy macros into optimized C# background services or cloud functions. If you want a developer who doesn't just write code, but actually understands your business goals and technical roadblocks ,click the Invite to Job or Message button. Let's discuss your project and map out a solution. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ #ArtificialIntelligence #AI #Dotnet #Blazor #.Net #Azure #FullStackDeveloper #WebDevelopment #AngularDeveloper #JavaScript #TypeScript #Angular #AzureCICD #React #FrontendDevelopment #BackendDevelopment #DatabaseDesign #CloudComputing #AzureFunctions #CustomWebApps #SoftwareEngineering #DevOps #DotNetCore #WebSocket #Azure #SoftwareDevelopment #Signalr #APIM #MicrosoftAzure #SQL #NoSQL #MongoDB #CosmosDB #GitHub #Bitbucket #AzureDevOps #JIRA #SaaS #WebDeveloper #Programming #AzureDevOps #Twilio #Messangi #WhatsappIntegration #ReactJS #TwilioWhatsapp #MessagingAPP #PayPal

𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | .𝐍𝐄𝐓 𝟖/𝟗 | 𝐁𝐥𝐚𝐳𝐨𝐫 | 𝐂# | 𝐍𝐞𝐱𝐭.𝐣𝐬 | 𝐑𝐞𝐚𝐜𝐭 | 𝐍𝐨𝐝𝐞.𝐣𝐬 | 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 | 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 & 𝐓𝐞𝐚𝐦 𝐋𝐞𝐚𝐝 I’m a Senior/Lead Full Stack Developer with 8+ years of experience building scalable, high-performance applications for startups, enterprises, and international product teams. As a Top Rated Plus freelancer, I bring a proven track record backed by: ⭐️ Top 3% of talent on Upwork 🕒 5750+ hours successfully delivered ✅ 100% Job Success Score ✅ Long-term client partnerships & repeat projects 🛠️ 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 𝐁𝐞𝐬𝐭 I specialize in designing, architecting, and delivering complex products end-to-end. I’ve led engineering teams and directly built solutions using: 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Blazor, React, Next.js, Angular • TypeScript, JavaScript (ES6+), Redux, Fluxor, MobX, Context API • Responsive UI/UX, Component-based Architecture 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • .NET WebForms, ASP.NET Core, .NET MVC, .NET Web API • C#, Node.js, Express.js • Microservices, REST APIs, Clean Architecture, CQRS + MediatR 𝐀𝐈, 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 • AI-powered features (chatbots, assistants, automation workflows) • OpenAI / Azure OpenAI implementations • AI integrations with Blazor, .NET APIs, Next.js, and Node • Embeddings, vector search, data processing pipelines • Intelligent search, recommendation systems, form automations, and LLM-driven tools 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞𝐬 & 𝐏𝐚𝐭𝐭𝐞𝐫𝐧𝐬 • CQRS + MediatR, Redux/Fluxor, MobX, Context API 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐎𝐑𝐌𝐬 • Entity Framework Core, Prisma, MongoDB, SQL Server 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 • Azure, VPS deployments, GitHub Actions CI/CD 𝐎𝐭𝐡𝐞𝐫 𝐓𝐨𝐨𝐥𝐬 • Identity, JWT Authentication, Fluent Validation, TDD (Jasmine, xUnit) 💡 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞 ✔ Leadership & Ownership – I’ve led teams from concept to deployment, ensuring scalable architecture, clean code, and maintainable solutions. ✔ Product Mindset – I don’t just write code, I help shape products that solve real problems and deliver business value. ✔ Communication – Proactive, transparent, and collaborative. I keep clients updated at every stage. ✔ Reliability – My clients know I consistently deliver on time and exceed expectations. ✔ Scalability & Performance – I focus on writing clean, testable, and future-proof code. 🌟 𝐂𝐚𝐫𝐞𝐞𝐫 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭 Selected by Facebook (Meta) in 2019 as one of only 50 developers worldwide for their prestigious Front-End Development Training Program (JavaScript & React), an advanced diploma (EQF Level 6) affiliated with the Board of Paris, France. 📩 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐄𝐱𝐜𝐞𝐩𝐭𝐢𝐨𝐧𝐚𝐥 If you’re looking for a reliable, senior-level engineer who can architect solutions, lead teams, integrate modern AI systems, and deliver production-ready code that scales, let’s connect. I deliver high-quality work, fast, and with zero micro-management required. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 Blazor Development, .NET 8 / .NET 9, ASP.NET Core Web API, C# Development, React.js Development, Next.js Development, Node.js Development, Full Stack Development, JavaScript (ES6+), TypeScript, REST API Development, Microsoft Azure, Azure Functions, GitHub Actions CI/CD, Docker, VPS Deployment, Cloud Architecture, Authentication & Authorization (JWT, Identity)

🚀 I help businesses build scalable, high-performance .NET applications using ASP.NET Core and Azure using microservice arhitecture. 💰 Generated real results: ✔ Built SaaS platforms used by real customers ✔ Integrated complex APIs (payments, third-party systems, automation) ✔ Improved system performance and reduced response times With 8+ years of experience, I specialize in: High-performance APIs (ASP.NET Core, Web API) Desktop Based Customized Solutions (Winform, .NET MAUI, WPF) Scalable backend systems & microservices Cloud deployment (Azure) Full-stack apps (Angular / React) AI integrations & automation 💡 What I can help you with: Build or fix your .NET Web & Desktop application Design scalable architecture Optimize slow or failing systems Integrate third-party APIs Launch SaaS products ⚡ Why clients work with me: ✔ Clean, maintainable code ✔ Fast communication & reliable delivery ✔ Focus on business results (not just code) If you need a developer who understands real-world systems and business impact, I’m ready to help.

*** 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.

I build modern, high-performance Web and Cross-Platform applications using .NET (including .NET 8 & .NET 9), ASP.NET Core, React, and MAUI, delivering reliable APIs, scalable architectures, and clean, maintainable code. With 10+ years of experience, I help businesses develop full-stack solutions, automate processes, optimize databases, and integrate modern AI-powered workflows using tools like Windsurf, Cascade, Model Context Protocol (MCP), OpenAI API, and LLM-based automations. What I offer: ✅ Full-stack backend & API development using .NET (including .NET 8 / .NET 9 / ASP.NET Core / Web API) ✅ Front-end development with React (JavaScript / TypeScript), building SPAs and interactive UIs ✅ Cross-platform mobile/desktop applications with .NET MAUI for Android, iOS, Windows (or other supported platforms) ✅ Database design, optimisation and migrations (SQL Server / MySQL), including schema design and data conversion/handling ✅ End-to-end solutions — from UI to backend to database and integrations ✅ Clean, maintainable code; clear communication; on-time delivery; scalable architecture Whether you need a modern web app, a production-grade backend API, or a cross-platform app that runs everywhere, I’m ready to deliver a complete solution tailored to your requirements. Send me a message, share your project details, and I’ll propose a plan that best suits your needs and timeline. Core Skills / Keywords C# / .NET 8 / .NET 9 / ASP.NET Core / Web API React (JavaScript / TypeScript) .NET MAUI (cross-platform mobile & desktop apps) JavaScript / TypeScript / HTML / CSS / Bootstrap SQL Server / MySQL / Database Design & Optimization Entity Framework / ORM REST API / Backend Integrations Full-Stack Web Application Development Cross-Platform Mobile & Desktop App Development Frontend-Backend Integration Responsive UI / SPA Development Clean Code / Code Maintainability / Clean Architecture Version Control / Git