Knockout.js Developers For Hire
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Hire ArmiaWassefFayez
ArmiaWassefFayez ArmiaWassefFayez
$50 USD / hour
Top 1% Preferred & Verified ✅ by Freelancer.comEgyptI am a Senior Technical Architect & Lead Full-Stack Developer with over 15 years of experience specializing in ASP.NET Core MVC, ASP.NET Zero / Boilerplate, and CMS platforms including Umbraco. I have an extensive background in both web and Windows application development using C#, VB.NET, and legacy VB6, supported by...I am a Senior Technical Architect & Lead Full-Stack Developer with over 15 years of experience specializing in ASP.NET Core MVC, ASP.NET Zero / Boilerplate, and CMS platforms including Umbraco. I have an extensive background in both web and Windows application development using C#, VB.NET, and legacy VB6, supported by strong expertise in Entity Framework and modern architectural patterns. My technical skills span a wide range of technologies and tools, including: Back-End & Cloud: ASP.NET Core, MVC, Web API, WCF, WebForms, SQL Server, PostgreSQL, Oracle, MySQL, NoSQL (MongoDB, Firebase), Crystal Reports, RDLC, SSIS, SSRS, Azure, AWS, SmarterASP, VPS & Plesk Front-End: HTML, CSS, JavaScript, jQuery, AJAX, TypeScript, Angular (all versions), React, Redux, KnockoutJS Version Control & DevOps: GitHub, GitLab, Bitbucket, TFS, SVN Mobile Development: Xamarin.Forms, Xamarin.Native, Flutter, Android, iOS Cloud & DevOps Microsoft Azure & AWS services (App Services, Functions, Storage, EC2, S3) CI/CD automation with Azure DevOps, GitHub Actions, GitLab CI, Bitbucket Pipelines Containerized deployments using Docker and Kubernetes Infrastructure provisioning and security best practices Hosting and server administration: SmarterASP, VPS & Plesk I apply clean software engineering principles with experience in Repository Pattern, Onion Architecture, Domain-Driven Design (DDD), and Dependency Injection, while consistently following SOLID principles. I value clear communication, transparency, and ongoing collaboration to ensure project alignment from start to finish. My commitment is to deliver high-quality, scalable solutions on time and within budget—client satisfaction is always my top priority. Thank you for reviewing my profile — I look forward to working together on your next project. less -
Hire AQutaishat
I help clients design, build, fix, improve, and integrate software systems. My background combines hands-on software development with solution architecture and technical consulting. I have extensive experience with ASP.NET Core, SQL Server, APIs, system integrations, enterprise applications, CI/CD, software...I help clients design, build, fix, improve, and integrate software systems. My background combines hands-on software development with solution architecture and technical consulting. I have extensive experience with ASP.NET Core, SQL Server, APIs, system integrations, enterprise applications, CI/CD, software architecture, and troubleshooting complex technical issues. I can help with tasks such as: - Building or improving ASP.NET Core applications - Designing REST APIs and backend services - Integrating third-party systems, payment services, and external APIs - Reviewing software architecture and suggesting practical improvements - Fixing difficult bugs, performance issues, and production problems - Reviewing code and improving structure, maintainability, and design - Database design, SQL queries, and troubleshooting - CI/CD pipelines and release-process improvements - Breaking down technical requirements and designing implementation approaches - Agile / SDLC process consulting for development teams - Technical documentation, architecture reviews, and development planning - Exploring practical AI and Generative AI integration within existing business applications I have worked on complex solutions in banking, government, healthcare, higher education, document management, and digital platforms, so I am comfortable understanding existing systems quickly and working within real-world constraints. You can hire me for a small technical task, a difficult issue, an architecture review, an integration, or a short consulting engagement. My focus is on understanding the problem quickly and delivering a practical solution. less -
Hire shayankhan333
I am Shayan - full-stack web, mobile, and software developer, active since 2018. 120+ projects delivered for clients worldwide with a 5.0 rating. Whether you need a professional website, a custom web application, a mobile app for iOS or Android, an eCommerce platform, business automation through CRM or ERP systems, or...I am Shayan - full-stack web, mobile, and software developer, active since 2018. 120+ projects delivered for clients worldwide with a 5.0 rating. Whether you need a professional website, a custom web application, a mobile app for iOS or Android, an eCommerce platform, business automation through CRM or ERP systems, or an AI-powered system, I can guide the process from idea to deployment. I focus on understanding business objectives first, then designing and developing systems that are efficient, secure, and built for long term growth. Here is what I build: AI and Automation - OpenAI GPT, Claude API, LLM fine-tuning, RAG pipelines and vector databases (Supabase pgvector, Pinecone, ChromaDB), LangChain, LlamaIndex, PyTorch, TensorFlow, Hugging Face, CUDA. Chatbots, AI agents, AI search and recommendation engines, content generation tools, document and PDF processing, plus workflow automation with Python, n8n, Zapier, Make, custom web scrapers, report generation, and scheduled pipelines. Web Applications - React.js, Next.js, Vue.js, Nuxt.js, Angular, TypeScript, Node.js, Laravel, CodeIgniter, Chrome Extensions, Django, FastAPI, Express.js, Symfony, ASP.NET / .NET Core. SaaS platforms, dashboards, admin panels, booking systems, client portals, POS front-ends, and Progressive Web Apps. Websites and E-Commerce - WordPress, WooCommerce, Shopify, Magento, BigCommerce, PrestaShop, Webflow, Wix, Drupal, HubSpot CMS. HTML5/CSS3, Tailwind, Bootstrap, custom themes and plugins, redesigns, speed and on-page SEO, payment gateways (Stripe, PayPal, Square), inventory and shipping automation. Mobile Apps - Android and iOS with React Native, Flutter, Swift, Kotlin, and Ionic. Push notifications, in-app payments, offline sync, real-time features, store publishing, and POS apps with hardware features like direct receipt printing. Data Engineering - Azure Data Factory, Databricks, PySpark, SQL Server. ETL pipelines, SQL-to-PySpark migrations, workflow setup, YAML configuration, and CI/CD deployment. ERP and Business Systems - ERPNext (invoices, purchase orders, PDF-to-ERP automation), Zoho, and custom CRM dashboards shaped around your workflow. APIs and Integrations - REST, GraphQL, WebSocket, SOAP. Stripe, PayPal, Twilio, SendGrid, Xero, MYOB, Google APIs, courier APIs, email and Teams sync, and C#/.NET desktop utilities connected to your systems. Cloud and Servers - AWS (EC2, S3, Lambda, RDS, ECS), Microsoft Azure, Google Cloud, DigitalOcean. Docker, Kubernetes, Terraform, GitHub Actions, CI/CD pipelines, serverless and auto-scaling setups, Nginx, Linux administration, monitoring, and cPanel/VPS optimization. Databases - MySQL, PostgreSQL, MongoDB, SQL Server, Firebase, Redis, Cassandra, DynamoDB, Elasticsearch. Design, migration, optimization, and scaling. Industries I have worked in: Healthcare, Finance, Logistics, Retail and POS, E-Commerce, Education, Events, MVP development and SaaS startups. Shayan less -
Hire 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 less -
Hire PKSocket
I have been working in the field of IT for over 10 years. I have tested my skills in almost all kind of technologies. I believe in hard work and giving my best in each task involved in a project. I have skills in the following categories: * Programming (Python, PHP, Ruby, Javascript, React, NextJS, Django, Rails,...I have been working in the field of IT for over 10 years. I have tested my skills in almost all kind of technologies. I believe in hard work and giving my best in each task involved in a project. I have skills in the following categories: * Programming (Python, PHP, Ruby, Javascript, React, NextJS, Django, Rails, Flask, FastAPI, Laravel, Wordpress, Magento) * AWS (Route 53, AWS EC2, Lambda, RDS, CodeDeploy, Cloud9, Snapshots, LightSail, VPC Networking) * Azure (Virtual Machines, SQL DB, App Service, AKS, DNS, Subscriptions) * GCP ( Compute, Networking, Google Kubernetes Engine, Firewall, Bigtable, Cloud Storage) * Database (MySQL, MongoDB, PostreSQL, Microsoft SQL Server, Couchbase) * Web Servers (Gunicorn, Nginx, IIS Server, WSGI) * CI/CD ( Github Actions, Jenkins, Buddy, Azure DevOps, Google Cloud Build) * Automation (Ansible, Terraform, Chef, Puppet, Python, Bash Programming) * Containerization ( Docker, Compose, Kubernetes. Helm Charts, YAML) I have deployment and scaling expertise in almost all cloud platforms, and I am able to manage highly available and Enterprise-class systems. Terms of Service • 100% Client Satisfaction • Unlimited Revisions • Excellent communication availability 24/7 Hire me to get a high-quality solution within your given timeline. Thanks. less -
Hire SidUSA
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...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. less -
Hire AwaisChaudhry
*Click Contact to discuss your project* We are ZAWN Tech, a software and engineering team helping businesses turn complex ideas into reliable, production-ready products. Since 2014, we have delivered web platforms, mobile applications, SaaS products, AI/ML solutions, enterprise systems, automation, blockchain...*Click Contact to discuss your project* We are ZAWN Tech, a software and engineering team helping businesses turn complex ideas into reliable, production-ready products. Since 2014, we have delivered web platforms, mobile applications, SaaS products, AI/ML solutions, enterprise systems, automation, blockchain applications, IoT/embedded systems, and custom software for clients worldwide. With 349+ client reviews, a 4.9/5 rating, 95% on-time delivery, and 99% on-budget performance, our focus is simple: understand the business problem, build the right technical solution, and deliver it reliably. What we specialize in • AI & Machine Learning — computer vision, AI applications, automation, LLM integrations • Web & SaaS — React, Next.js, Node.js, Python, PHP and custom platforms • Mobile Apps — iOS, Android and cross-platform applications • Enterprise Software — business management systems, APIs, integrations and automation • Blockchain & Web3 — smart contracts, wallets, exchanges and custom blockchain solutions • IoT & Engineering — connected devices, embedded systems and industrial applications • Cloud & DevOps — deployment, infrastructure, APIs, databases and scalable architectures Why clients work with us ✅ 10+ years of experience on Freelancer ✅ 349+ completed client reviews ✅ 4.9/5 overall rating ✅ 95% on-time delivery ✅ 99% on-budget delivery ✅ Experienced multi-disciplinary technical team ✅ Full project lifecycle — strategy → design → development → testing → deployment → support We are particularly suited to projects where technical complexity, reliability and long-term maintainability matter. If you have an idea, an existing product that needs improvement, or a complex system that needs to be built from scratch, send us the requirements and we'll help you determine the best technical approach. less -
Hire CVInfotech
Custom Software, AI and SaaS Product Studio. 14 Years, One Platform. We have built exclusively on Freelancer.com for 14 years. 500+ projects delivered. 5.0 rating across 500+ reviews. 23% repeat hire rate. This is our only sales channel, so every project gets our full attention, not overflow from an agency spread...Custom Software, AI and SaaS Product Studio. 14 Years, One Platform. We have built exclusively on Freelancer.com for 14 years. 500+ projects delivered. 5.0 rating across 500+ reviews. 23% repeat hire rate. This is our only sales channel, so every project gets our full attention, not overflow from an agency spread across ten platforms. What we build Custom software and SaaS platforms. Full-stack, scalable, and built to hand off cleanly. AI native products. ChatGPT, Claude and Gemini integrations, AI chatbots, voice agents, workflow automation. Ecommerce and marketplaces. Shopify, WooCommerce, multivendor platforms. WordPress, Laravel, React, Next.js and Node.js. Production-grade, not template work. You will work directly with Akash (CTO, 14 years on this platform) and Shubham or Divya (client relationship leads, named by clients in reviews going back years). The same people from your first message to final delivery. No account handoffs, no rotating project managers. 152 professional recommendations back that consistency. 100% in house team. No outsourcing. We treat every project as if we are the ones maintaining it three years from now, because often we are. Some clients have stayed with us since 2012. If your project does not need custom development, we will tell you before you spend the money. Core expertise Frontend: React, Next.js, Vue, Angular, TypeScript Backend: Node.js, Express, NestJS, Laravel, FastAPI, Core PHP Mobile: React Native, Flutter Databases: PostgreSQL, MongoDB, MySQL, Supabase Cloud: AWS, Google Cloud, Docker AI and Automation: OpenAI, Claude and Gemini APIs, RAG pipelines, LangChain, AI agents CMS and Ecommerce: WordPress, Shopify, WooCommerce, Wix, Squarespace, BigCommerce, Magento, Joomla, OpenCart, Weebly, Webflow, GoDaddy Website Builder, headless CMS Payments, Billing and Subscriptions: Stripe, Stripe Connect, PayPal, Razorpay, WooPayments, NOWPayments, ccBill, LemonSqueezy, Peppol Voice and Telephony: VAPI for inbound and outbound call orchestration with function calling, Twilio for phone number provisioning CRM and Automation: HubSpot, Zapier Lead Generation and Landing Pages: HubSpot, Odoo, Webflow, GoHighLevel, Apify, Outscraper Email and Communication: Postmark, Nodemailer, Mailivery, Gmail API, Microsoft Graph API, Yahoo IMAP, SendGrid AI Assisted Development: Cursor, Replit, Bubble, WeWeb, Lovable, Bolt, Base44 Let's talk about what you are trying to build. less -
Hire scriptersZ
We are Codesigma Technology Services, a full-stack development agency based in India with 10+ years of delivering complex, production-ready applications. Our founder and top developers have experience working with Inc. 5000 companies and professional teams across the world, bringing a strong understanding of diverse,...We are Codesigma Technology Services, a full-stack development agency based in India with 10+ years of delivering complex, production-ready applications. Our founder and top developers have experience working with Inc. 5000 companies and professional teams across the world, bringing a strong understanding of diverse, multicultural work environments to every project. We are a tight team of experienced developers - small enough to move fast, experienced enough to build right. You always work with the most senior person, not a project manager who delegates to juniors. What we've built: -> Cross-platform POS system - React, Firebase, Flutter, Electron - running on Web, Android, iOS, macOS, and Windows with full offline-first functionality and real-time sync -> Multi-channel e-commerce aggregator - unified management of Amazon, Flipkart, Shopify, Meesho, Nykaa orders, inventory, warehouse, and payment reconciliation -> Real-time audio/video interpretation SaaS - Twilio Voice/Video, Task Router, BoostLingo integration, serving a global user base -> Booking systems, media streaming platforms, headless CMS websites, Shopify applications, and WordPress plugins across industries Our technical stack: Frontend: React, Next.js, Angular, JavaScript, TypeScript Backend: Node.js, PHP (Laravel, CodeIgniter), Python Mobile & desktop: Flutter, React Native, Electron.js Real-time: Twilio, Firebase, WebSockets Data: MySQL, MongoDB, PostgreSQL, Firestore Integrations: Stripe, PayPal, Razorpay, Shopify API, Amazon SP-API, GraphQL Infrastructure: AWS, Linux server management, deployment We are the right fit if you need: - A long-term development partner, not a one-off freelancer - End-to-end ownership from architecture to deployment - Cross-platform delivery (web + mobile + desktop from one team) - Complex integrations with third-party APIs and platforms - Clean, documented, maintainable code that your team can take over We work on fixed-price and hourly engagements. For ongoing projects, we offer monthly retainer arrangements. Let's discuss your project. less
