ADO.NET Developers para contratar
Mostrando 13 resultados
Freelancers patrocinados
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Contratar ShahidSolutions
ShahidSolutions ShahidSolutions
$15 USD / hora
Full Stack Developer | AI & Automation EngineerPakistanI am a full-stack developer specializing in .NET Core and React, creating fast, secure, and scalable web applications. I build clean APIs, modern front-end interfaces, and reliable business solutions with a focus on performance, usability, and long-term maintainability. --- My Core Expertise: High-Value Technology...I am a full-stack developer specializing in .NET Core and React, creating fast, secure, and scalable web applications. I build clean APIs, modern front-end interfaces, and reliable business solutions with a focus on performance, usability, and long-term maintainability. --- My Core Expertise: High-Value Technology Stacks I build modern applications with a focus on speed, security, and scalability, ensuring they not only function flawlessly but also leave a lasting impression. --- Why Clients Choose Me: * Creative + analytical approach * Fully optimized websites ready for advertising platforms from day one * Consistent delivery, clear communication, and ongoing support If you’re looking for someone who can design, build, market, and scale your brand in one place I’m your guy. Let’s turn your idea into a powerhouse presence. menos -
Contratar Sohaibbilal988
Sohaibbilal988 Sohaibbilal988
$10 USD / hora
Full-Stack & AI Developer | React | Next.js | .NetPakistanAre you looking for a developer who actually delivers on time, within scope, and with clean code you can build on? I'm a full-stack developer with hands-on experience across the entire product lifecycle: from idea and architecture to deployment and scale. I work with startups, agencies, and growing businesses to...Are you looking for a developer who actually delivers on time, within scope, and with clean code you can build on? I'm a full-stack developer with hands-on experience across the entire product lifecycle: from idea and architecture to deployment and scale. I work with startups, agencies, and growing businesses to turn complex requirements into polished, production-ready software. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱: - Web & SaaS platforms using React, Next.js, .NET, Node.js, and NestJS - Mobile apps with Flutter, React Native, and Ionic - AI-powered tools: ChatGPT integrations, Claude API, ML workflows, and intelligent automation - E-commerce stores on Shopify, WooCommerce/WordPress, and Wix - MVPs and rapid prototypes using Bubble, Lovable, and Replit - REST & GraphQL APIs, third-party integrations, and custom automation workflows My focus is always on business outcomes not just writing code. Before I write a single line, I understand your goal, your users, and your constraints. The result is software that works, scales, and doesn't need to be rewritten six months later. I communicate clearly, deliver milestones on schedule, and treat every project as if my name is on the product,because it is. Send me a message describing what you're building. If I can help, I'll tell you exactly how. menos -
Contratar designysoft
Hello! I’m a Senior Software Architect and Full-Stack Developer with 20+ years of experience building scalable, secure, and performance-driven applications. I specialize in combining strong engineering fundamentals with modern AI capabilities to deliver intelligent, future-ready solutions. I build intelligent,...Hello! I’m a Senior Software Architect and Full-Stack Developer with 20+ years of experience building scalable, secure, and performance-driven applications. I specialize in combining strong engineering fundamentals with modern AI capabilities to deliver intelligent, future-ready solutions. I build intelligent, scalable applications by integrating AI into real-world business workflows. My experience includes AI-assisted data validation, automated mapping, and decision-support features that improve data onboarding and operational efficiency. I design reliable backend services and APIs for complex, high-volume systems, including large data migration and transformation pipelines with strict integrity requirements. I develop responsive, production-ready web applications and ensure they perform smoothly under real-time and high-concurrency conditions through scalable architecture and efficient processing patterns. Today, software is not just about functionality. It’s about automation, insights, and smarter decision-making. I help businesses integrate AI tools and cloud technologies into their systems to increase efficiency and unlock new value. Core Expertise Microsoft Ecosystem .NET Core, ASP.NET MVC, C#, VB.NET, Web & Desktop Applications, REST APIs, Microservices Architecture AI & Intelligent Systems AI API integrations (OpenAI and similar platforms) Chatbots and virtual assistants Workflow automation using AI tools Predictive analytics integrations AI-enhanced business applications Frontend & JavaScript React.js, Angular, Vue.js, Blazor, Node.js, TypeScript, jQuery, AJAX Mobile Development Flutter, .NET MAUI, React Native, Ionic, Native Android & iOS Cloud & DevOps Azure, AWS, Google Cloud CI/CD pipelines Docker-based deployments Cloud-native architecture and optimization Databases MS SQL Server, MySQL, PostgreSQL, MongoDB UI/UX & Responsive Design Tailwind, Bootstrap, HTML5, CSS3, Mobile-first design What I Deliver: - -> End-to-end product development, from architecture to production -> AI-powered features integrated into web and mobile applications -> Custom enterprise systems and automation platforms -> Cloud migration and scalable infrastructure design -> Secure, maintainable, and well-structured code -> Clear communication and predictable delivery timelines I work best with clients who value long-term collaboration and technical excellence. If you’re looking to modernize your application, integrate AI capabilities, or build a robust system from scratch, I’d be glad to discuss your goals. Let’s connect and explore how we can build something impactful. menos -
Contratar juanjosec63
Hello! I'm Juan Jose C, a full-stack developer experience in building modern web app, game and integrating AI features. I specialize in creating dynamic, scalable solutions with a focus on AI-driven functionality, using technologies like C#, .Net, Core, WebGL, Three.js, Angular, React, Next.js, Node.js, Vue.js and...Hello! I'm Juan Jose C, a full-stack developer experience in building modern web app, game and integrating AI features. I specialize in creating dynamic, scalable solutions with a focus on AI-driven functionality, using technologies like C#, .Net, Core, WebGL, Three.js, Angular, React, Next.js, Node.js, Vue.js and Tailwind CSS. I also leverage the latest and most popular AI code tools to write fast, efficient, and scalable code, ensuring top-tier performance and innovation in every project. My Main Skills: Frontend: React, Next.js, Vue.js, TailwindCSS, Shadcn Backend: Node.js, Express, Laravel, Python, Django, REST APIs, FastAPI, GraphQL, WebSocket, Socket.io AI & LLMs: OpenAI (GPT-4, ChatGPT), Chatbot, LangChain, Cohere, Pinecone Cloud & Deployment: Vercel, AWS, Firebase Database: MySQL, MongoDB, PostgreSQL, Supabase, Adrant, ChromeDB Tools: Cursor, Lovable, Bolt.new, V0.dev, Zed, Warp, Figma menos -
Contratar symrizals
14+ years building and maintaining ERP systems for a multi-site manufacturing group: payroll with biometric attendance integration, inventory and warehouse management, budgeting, production planning, and general ledger. I now pair that domain depth with hands-on AI engineering. I build and deploy AI into real web...14+ years building and maintaining ERP systems for a multi-site manufacturing group: payroll with biometric attendance integration, inventory and warehouse management, budgeting, production planning, and general ledger. I now pair that domain depth with hands-on AI engineering. I build and deploy AI into real web apps: LLM and RAG assistants, retrieval pipelines, and AI agents (I run a 24/7 automation on my own VPS that watches a live feed and pushes alerts). Backed by AI Engineer, MLOps, and Generative AI training, applied in production, not just tutorials. Most AI-assisted freelancers can write code but do not understand why a business process needs a specific control. I do. That is the gap I fill: AI that actually fits how the business runs. I also ship mobile: Android and Flutter, including a Wear OS smartwatch app. Core stack: Python, SQL Server (incl. performance tuning), C#, VB.NET, ASP.NET, .NET 8, Next.js/React, PostgreSQL, Docker and CI/CD, NetSuite SuiteScript, plus ML/LLM tooling. Open to: AI integration in web and business apps, LLM/RAG and AI-agent builds, ERP/inventory/payroll systems, SQL Server optimization, legacy VB6-to-web migration, and mobile/Wear OS apps. menos -
Contratar SidUSA
Desarrollo en iOS, Desarrollo de Aplicaciones para Android, Desarrollo de apps móviles, Testing de aplicaciones móviles, Desarrollo BackendQuantum Code Solutions is a software development agency specializing in Mobile App Development, Web Development, IoT, Embedded Systems, SaaS, CRM, AI, Cybersecurity, Automation, AR/VR and Game Development. We take on complex, unusual and technically challenging projects that other developers avoid. If your project...Quantum Code Solutions is a software development agency specializing in Mobile App Development, Web Development, IoT, Embedded Systems, SaaS, CRM, AI, Cybersecurity, Automation, AR/VR and Game Development. We take on complex, unusual and technically challenging projects that other developers avoid. If your project seems impossible, highly customized, difficult to integrate, or another developer couldn't finish it, bring it to us. We analyze the problem, engineer the solution and deliver with confidence. 📱 Mobile App Development Expert iOS, Android and cross-platform development using React Native, Flutter, Swift, SwiftUI, Kotlin, Java and Expo. We build MVPs, startup apps, enterprise apps, SaaS apps, marketplaces, eCommerce, healthcare, fintech, social, booking, delivery, streaming and real-time applications. Services include UI/UX, API integration, REST API, GraphQL, Firebase, WebSockets, push notifications, payments, subscriptions, GPS, Bluetooth/BLE, NFC, authentication, security, optimization, debugging, maintenance, App Store submission and Google Play publishing. 🌐 Web & SaaS Development Full-stack web applications, SaaS platforms, CRM systems, dashboards, portals, marketplaces and custom business software using React.js, Next.js, Vue.js, Nuxt.js, JavaScript, TypeScript, Node.js, NestJS, Express, PHP, Laravel, Python, Django and FastAPI. Expertise includes frontend, backend, API development, databases, cloud applications, multi-tenant SaaS, subscription platforms, eCommerce, automation, AWS, Azure, Google Cloud and Firebase. 🔌 IoT & Embedded Systems We build complete IoT solutions, from hardware and firmware to cloud platforms, APIs, dashboards and mobile apps. Expertise includes IoT, Industrial IoT, IIoT, embedded systems, firmware, Arduino, ESP32, ESP8266, Raspberry Pi, STM32, sensors, BLE, Wi-Fi, MQTT, TCP/IP, UART, SPI, I2C, GPIO, telemetry, device management, remote monitoring and device-to-cloud communication. 🔐 Cybersecurity Security-focused development including web security, mobile security, API security, authentication, authorization, OAuth, JWT, encryption, secure coding, OWASP, vulnerability assessment, security hardening, access control, cloud security, IoT security and secure architecture. 🤖 AI, Automation, AR/VR & Games We also develop AI applications, AI integrations, chatbots, LLM solutions, workflow automation, Unity games, Unreal Engine, AR, VR, XR, Metaverse and interactive experiences. 🚀 Why Quantum Code Solutions? We don't run from difficult projects. We run toward them. The work nobody wants to touch. The integration everyone says is too complicated. The application another developer couldn't finish. The legacy system that needs rescuing. The hardware that needs custom software. That's our kind of project. From architecture and development to testing, security, deployment and maintenance, we build technology that works in the real world. menos -
Contratar benny307
Technology is most valuable when it solves real business problems. That's the mindset I bring to every project. I'm a Web, Mobile, and AI Developer who helps startups, businesses, and agencies build modern digital products that are fast, scalable, and easy to maintain. Whether you're launching an MVP, modernizing an...Technology is most valuable when it solves real business problems. That's the mindset I bring to every project. I'm a Web, Mobile, and AI Developer who helps startups, businesses, and agencies build modern digital products that are fast, scalable, and easy to maintain. Whether you're launching an MVP, modernizing an existing platform, or integrating AI into your product, I deliver solutions that are built for long-term growth—not just short-term success. From planning and architecture to development, deployment, and ongoing support, I take ownership of the entire development process while maintaining clear communication and a strong focus on quality. What I Build AI-powered SaaS platforms Web applications and business dashboards Cross-platform iOS & Android apps Customer portals and internal business tools API integrations and automation systems MVPs for startups Custom business software Technical Expertise ✅AI & Automation ✅OpenAI, Claude & Gemini APIs ✅AI Assistants & Chatbots ✅RAG (Retrieval-Augmented Generation) ✅LangChain ✅AI Workflow Automation ✅Document Processing ✅Prompt Engineering Mobile Development ✅Flutter ✅FlutterFlow ✅React Native ✅Firebase ✅Cross-platform iOS & Android Apps Web Development ✅React.js ✅Next.js ✅Vue.js ✅TypeScript ✅JavaScript ✅Tailwind CSS Backend Development ✅Node.js ✅Express.js ✅Laravel ✅PHP ✅REST APIs ✅GraphQL ✅Authentication & Security Databases ✅PostgreSQL ✅MySQL ✅MongoDB ✅Firebase ✅Supabase ✅Redis Cloud & Deployment ✅AWS ✅Docker ✅Firebase ✅Vercel ✅DigitalOcean ✅CI/CD Why Clients Work With Me ✅Clean, maintainable code ✅Scalable software architecture ✅Responsive communication ✅Fast turnaround without compromising quality ✅Long-term support and continuous improvements I believe successful software is more than functional code—it's a product that delivers real value, performs reliably, and scales with your business. My goal is to build applications that users enjoy using and businesses can confidently grow around. menos -
Contratar AndrewJSMAN
I’m Andrii, an IT professional with hands-on experience since 2020. I’m a results-driven AI and Web Developer specializing in building intelligent, scalable, and user-centric solutions. My expertise includes: Web Development – full-stack applications, SaaS platforms, e-commerce solutions, and seamless API...I’m Andrii, an IT professional with hands-on experience since 2020. I’m a results-driven AI and Web Developer specializing in building intelligent, scalable, and user-centric solutions. My expertise includes: Web Development – full-stack applications, SaaS platforms, e-commerce solutions, and seamless API integrations. AI & Machine Learning – custom model development, chatbots, NLP solutions, data automation, and predictive analytics Mobile Development – building high-quality mobile applications using React Native and Flutter Automation – optimizing workflows with AI, APIs, and custom scripts to reduce costs and improve efficiency I focus on understanding client needs, crafting smart technical solutions, and delivering reliable, high-quality results on time. Whether you’re looking for an AI-powered product, a modern web or mobile platform, or a long-term development partner, I’m ready to help transform your ideas into powerful, high-performing solutions. Let's talk. Thanks. menos -
Contratar Hammadhassan21
Hammadhassan21 Hammadhassan21
$15 USD / hora
Top Rated Product Engineer | Web, Mobile & SaaSPakistanI help founders and businesses turn ideas into reliable digital products from an initial MVP to a scalable SaaS platform or complete business application. With 8+ years of experience and 200+ projects delivered, I bring together product thinking, software architecture, web development, mobile development, APIs,...I help founders and businesses turn ideas into reliable digital products from an initial MVP to a scalable SaaS platform or complete business application. With 8+ years of experience and 200+ projects delivered, I bring together product thinking, software architecture, web development, mobile development, APIs, databases, and project delivery to build products that are designed for real-world use and future growth. My experience covers: • MVP development from idea to launch • SaaS product development • Custom business platforms and web applications • Startup product development and technical execution • Mobile applications for iOS and Android • React and modern frontend development • Laravel and Node.js backend development • REST APIs and third-party integrations • Database architecture and application scalability • Admin panels and business dashboards • E-commerce and payment solutions • AI-powered product features and integrations • Real-time applications and communication features • Product redesign, modernization and technical improvements • QA, deployment and post-launch support I can work with you across the complete product lifecycle understanding the requirements, planning the architecture, developing the product, integrating the necessary services, testing the system, and preparing it for production. My approach is focused on finding the right balance between speed, quality, scalability, and budget. For startups, this means building an MVP without creating unnecessary technical complexity. For established businesses, it means improving existing systems while keeping future expansion in mind. What you can expect: • 8+ years of software development experience • 200+ projects delivered • 4.9/5 client rating • Top Rated / Preferred Freelancer • Experience working with startups and established businesses • Full product development capability across web, mobile and backend • Strong focus on architecture, scalability and maintainability • Structured project management and QA • Clear communication throughout development If you have a product idea, MVP requirement, SaaS concept, existing application, or business system that needs to be built or improved, share the details with me. I can help you evaluate the technical approach, define the development scope, and turn the idea into a working product. menos -
Contratar iamabbas93
? Open to New Projects and Consultations Fintech & Healthcare Expert | Senior Microsoft .NET Developer | Full Stack .NET Developer | React Developer | .NET Core, React, Web API, Cloud Solutions | Scalable Apps & Cloud Integrations I am a Full Stack .NET Developer with over six years of experience, dedicated to...? Open to New Projects and Consultations Fintech & Healthcare Expert | Senior Microsoft .NET Developer | Full Stack .NET Developer | React Developer | .NET Core, React, Web API, Cloud Solutions | Scalable Apps & Cloud Integrations I am a Full Stack .NET Developer with over six years of experience, dedicated to delivering scalable and efficient tech solutions across Fintech, Healthcare, and more. My expertise lies in solving complex challenges and consistently producing high-quality results within tight timelines. ? What Do I Offer? ? ? Full development cycle (planning, development, QA, deployment, support) ? API integration and custom solutions ? MVP development for your innovative ideas ? Frontend & Backend development (.NET, ASP.NET, MVC, React, JavaScript, TypeScript) ? Automation and integration tests ? Database design, implementation, and optimization (SQL) ? Ongoing support and maintenance Industry Experience: ? Fintech Services ? Logistics ? Healthcare ? On-demand Services ? Education Key Skills & Expertise: .NET Core, ASP.NET MVC, Web API SQL Server, Dapper, Entity Framework AWS Cloud Services, Azure DevOps API Integrations (JSON, XML) Agile Development, Clean Code, Unit Testing API Integration Expertise: Google APIs (Analytics, Maps, Drive, Gmail) Twilio (Video, Audio, SMS), SMTP APIs Salesforce API, WordPress REST API Payment Gateway Integration (PayPal, Stripe, Razorpay, Apple Pay) AWS, Smart Contracts, NFT projects I have successfully built healthcare solutions that enhanced workflows for US-based clients and partnered with global teams to deliver advanced loan management systems. Technical Skill Set: Frontend: ReactJS, Typescript, JavaScript, jQuery, Blazor Backend: .NET Framework Databases: PostgreSQL, MSSQL, MySQL, Firebase, MongoDB DevOps: AWS, GCP, Azure DevOps Payment Integration: PayPal, Stripe, Razorpay, Apple Pay Project Tools: Slack, Jira, Trello, GitHub, BitBucket My Development Approach: ? Clean Code Principles (MVVM) ? Responsive Design for Superior User Experience ? Effective Use of Version Control Systems ? CI/CD Pipelines for Streamlined Development ? E2E and Unit Testing with Selenium & Cypress ? Why Choose Me: Comprehensive skill set covering both development and design for cohesive solutions. An industry-focused approach tailored to your specific business needs. Commitment to staying updated with the latest technologies to keep your projects competitive. Transparent communication and seamless collaboration throughout the project lifecycle. I hold a Bachelor’s degree in Computer Science and am dedicated to continuous learning and growth. I aim to create highly scalable and maintainable applications that exceed your expectations. ⭐ Note: Every project is unique. Let's chat to discuss your requirements in detail and provide a customized timeline, scope, and pricing. menos
