OAuth Developers For Hire
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Sponsored Freelancers
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Hire Herculesz
Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces,...Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces, admin dashboards, mobile applications, automation systems, APIs, CMS websites, eCommerce stores, and intelligent AI-powered workflows. I bring a strong combination of full-stack engineering, cloud architecture, DevOps, CMS/eCommerce development, and AI/LLM expertise, with a proven ability to transform complex business requirements into scalable, secure, and user-focused digital products. My experience covers frontend architecture, backend engineering, database design, third-party integrations, real-time systems, performance optimization, CI/CD, observability, and production deployment. Technical Expertise: Frontend: React, Next.js, Vue.js, TypeScript, JavaScript, Tailwind CSS, Material UI, responsive UI/UX implementation Backend: Node.js, NestJS, Express.js, Laravel, PHP, Python, REST APIs, GraphQL, microservices, server-side architecture Mobile: Flutter, React Native, Expo, iOS, Android, cross-platform mobile app development CMS & eCommerce: WordPress, WooCommerce, Shopify, Wix, Webflow, custom theme development, plugin/app integrations, payment setup, product catalogs, checkout flows, landing pages, blog systems, and SEO-friendly website architecture Databases: PostgreSQL, MySQL, MongoDB, Firebase Firestore, Supabase, Redis, database design, optimization, migrations, and data modeling Cloud & DevOps: AWS, Google Cloud, Azure, DigitalOcean, Docker, Kubernetes, Nginx, CI/CD, GitHub Actions, server deployment, monitoring, logging, and observability AI & LLMs: OpenAI API, LangChain, RAG pipelines, AI copilots, conversational agents, semantic search, embeddings, prompt engineering, fine-tuning, Pinecone, pgvector, vector databases, and agentic workflows Payments & Integrations: Stripe, PayPal, Twilio, SendGrid, Firebase, Google APIs, third-party APIs, webhooks, CRM integrations, automation platforms, and API-based business workflows I have a strong track record of designing and delivering scalable SaaS platforms, marketplace systems, mobile apps, admin dashboards, CMS websites, eCommerce stores, automation tools, and AI-driven products that support real business operations. My work combines clean frontend experiences, secure backend systems, optimized databases, cloud-ready infrastructure, flexible CMS solutions, and practical AI innovation. As a hands-on technical leader, I am experienced in mentoring engineers, leading cross-functional teams, making architecture decisions, and aligning technical execution with business goals. I am passionate about building high-quality software that is scalable, maintainable, and ready for real-world users. less -
Hire pankajgarg86
Top 1% Preferred Freelancer (Based on Platform Ranking) I am a Professional Full-Stack Developer with over 10+ years of experience delivering scalable, high-performance web and application solutions. I focus on clean architecture, performance optimization, and long-term maintainability. My goal is not just to...Top 1% Preferred Freelancer (Based on Platform Ranking) I am a Professional Full-Stack Developer with over 10+ years of experience delivering scalable, high-performance web and application solutions. I focus on clean architecture, performance optimization, and long-term maintainability. My goal is not just to complete a project, but to build solutions that exceed expectations and support business growth. 💻 Technical Skills Microsoft Stack: .NET Core | ASP.NET MVC | C# | Entity Framework | EF Core | Dapper | Web API | WPF | WCF | ABP.IO | Azure | AWS Frontend & JavaScript: JavaScript | jQuery | AngularJS | Vue.js | Node.js | Express.js | Kendo UI | Telerik | DevExpress | HTML5 | CSS3 | Bootstrap Integrations: Payment Gateway Integration | Google API Integration | Twilio API | RESTful API Development CMS & Platforms: WordPress | Laravel | Shopify | Squarespace 🗄 Databases MS SQL Server | MySQL | PostgreSQL | Oracle | MongoDB | NoSQL | Microsoft Access 💡 What Makes Me Different • 10+ years experience in production systems • Top 1% on Freelancer • 100% On-Time & On-Budget • Clean, documented, maintainable code • Strong ownership mindset I don’t just complete tasks — I solve root problems. If you need stability, performance, and reliability, let’s discuss your project. less -
Hire taraskkorol
I build modern web applications and AI-powered SaaS products from idea to production. My focus is creating reliable, scalable systems that are easy to maintain and ready for real users. I work across frontend, backend, APIs, and AI integrations, helping startups and businesses turn concepts into working products...I build modern web applications and AI-powered SaaS products from idea to production. My focus is creating reliable, scalable systems that are easy to maintain and ready for real users. I work across frontend, backend, APIs, and AI integrations, helping startups and businesses turn concepts into working products quickly and cleanly. What I can help with: • Full-stack web development • AI features and automation • SaaS architecture and MVP builds • API integrations and performance optimization - Mobile App development with AI Integration I value clear communication, realistic timelines, and delivering solutions that actually solve business problems. less -
Hire extreamcode
Please visit my full portfolio: https://divulgetechnologies.com/ I am a Full-Stack, AI, and Digital Solutions Engineer with 15+ years of experience delivering websites, business apps, automation systems, API integrations, CRM workflows, dashboards, digital marketing support, presentations, and technical...Please visit my full portfolio: https://divulgetechnologies.com/ I am a Full-Stack, AI, and Digital Solutions Engineer with 15+ years of experience delivering websites, business apps, automation systems, API integrations, CRM workflows, dashboards, digital marketing support, presentations, and technical problem-solving. I help clients turn ideas into practical deliverables, from planning and design to development, deployment, optimization, documentation, and post-launch support. 30-Day Guarantee with Full Support Coverage After Project Completion. Core Expertise: - Custom websites, web apps, dashboards, portals, SaaS tools, admin panels, and business software - PHP, MySQL, JavaScript, React, Node.js basics, Python, Flask/FastAPI, MERN, LAMP, and CakePHP - WordPress, WooCommerce, Shopify, Magento, OpenCart, PrestaShop, CS-Cart, WHMCS, Webflow, Wix, Squarespace, Framer, Base44, Lovable, and Odoo - Flutter mobile apps for Android and iOS - REST APIs, webhooks, payment gateways, data sync, and third-party integrations - AI / ChatGPT integrations, AI assistants, automation tools, Python MVPs, and AI-enabled workflows - CRM, lead capture, verified lead workflows, appointment-setting systems, GoHighLevel, Zoho CRM, forms, funnels, and marketing automation - Landing pages, analytics, conversion tracking, email/SMS/WhatsApp workflows, and lead management - UI/UX, responsive web design, Figma-to-web, product pages, checkout pages, and conversion-focused layouts - PowerPoint, pitch decks, executive presentations, educational presentations, visual storytelling, infographics, and editable business documents - Canva, Figma, Adobe-style assets, social/web graphics, product visuals, storyboards, and AI-assisted image/video concepts - Three.js, WebGL, Unity-style interactive experiences, product visualization, and marketing animation support - SQL databases, reports, authentication, booking systems, inventory tools, and operational dashboards - Hosting, cPanel/WHM, VPS, Cloudflare, SSL, DNS, Linux/Windows Server, deployment, migration, speed optimization, and troubleshooting - Business process, logistics, capacity-planning, simulation-style workflows, AnyLogic/FlexSim-style support, Excel/SQL data preparation, scenario reporting, and documentation Many projects are not only websites. They involve connecting software, data, marketing, operations, reports, presentations, APIs, cloud services, and business workflows. I help turn those moving parts into dependable deliverables. What You Can Expect: - Clear communication - Practical technical advice - Clean, scalable implementation - Business-focused problem solving - Reliable troubleshooting - Proper documentation - 1-month free support after delivery Whether you need a website, eCommerce store, app, API integration, automation workflow, CRM setup, lead generation system, dashboard, presentation deck, AI tool, server fix, creative web asset, or business process solution, I can help you build it properly. less -
Hire markupdudes
I help businesses turn ideas into powerful, AI-driven applications that boost efficiency, engage users, and scale with ease. I’m a full-stack developer with strong expertise in Artificial Intelligence (AI), Machine Learning (ML), and Large Language Models (LLMs). I build smart, data-driven applications that integrate...I help businesses turn ideas into powerful, AI-driven applications that boost efficiency, engage users, and scale with ease. I’m a full-stack developer with strong expertise in Artificial Intelligence (AI), Machine Learning (ML), and Large Language Models (LLMs). I build smart, data-driven applications that integrate intelligent automation, natural language processing (NLP), and predictive analytics to deliver innovative, scalable solutions for businesses. On the backend, I work extensively with Python (Django, Flask, FastAPI), Node.js, and PHP frameworks including Laravel, CodeIgniter, Joomla, and Magento. On the frontend, I develop modern, high-performance web and mobile applications using ReactJS, React Native, Swift/SwiftUI for iOS, and Kotlin/Jetpack Compose for Android. I also specialize in custom WordPress development, from theme and plugin creation to full-scale, tailored CMS solutions, ensuring functionality matches your exact needs. My UI/UX toolkit covers HTML, CSS, JavaScript, jQuery, and Bootstrap, with a focus on clean, user-friendly design. Beyond application development, I have hands-on experience with Blockchain-based applications, Cloud management (AWS, Azure, Google Cloud), and DevOps workflows (CI/CD pipelines, containerization with Docker/Kubernetes, and server automation). My approach is to combine technical expertise with an understanding of business goals, delivering high-quality, scalable, and future-ready solutions that not only meet but exceed client expectations. less -
Hire TheSecondSource
Second Source is a technology and marketing services company with a distributed team of 60+ experienced professionals, supporting startups, agencies, and growing businesses worldwide. Our focus is not just on completing tasks, but on owning outcomes, timelines, and quality. Unlike single freelancers, we provide...Second Source is a technology and marketing services company with a distributed team of 60+ experienced professionals, supporting startups, agencies, and growing businesses worldwide. Our focus is not just on completing tasks, but on owning outcomes, timelines, and quality. Unlike single freelancers, we provide continuity, scalability, and accountability. Clients work with a single point of contact, backed by a specialized internal team, ensuring smooth communication and reliable execution even on long-term or multi-skill projects. 🔹 CORE SERVICES (TIGHTENED & PROFESSIONAL) Software & Web Development ✅Custom Web Applications (Laravel, PHP, ASP.NET) ✅WordPress, Shopify & Magento Solutions ✅Admin Panels, Dashboards & APIs ✅Scalable Database Design & Management Mobile App Development ✅Android & iOS Applications ✅Flutter (Cross-Platform) ✅Backend & Web Services Integration UI/UX & Design ✅High-converting Landing Pages ✅PSD/Figma to HTML ✅Brand-aligned Website & Newsletter Design Business Automation & Data ✅Excel Automation (Formulas, VBA, Macros) ✅Data Analysis & Workflow Optimization Marketing Services & Digital Growth ✅SEO (On-Page & Off-Page) ✅Performance-focused Website Optimization ✅Technical SEO for Web Apps ✅Graphics Design ✅Video Editing ✅Digital Ads - Meta, Tiktok, google and LinkedIn less -
Hire arturg6
Hello and welcome! I am a Full Stack Developer, AI Engineer, and Mathematics Researcher with a strong academic background in mathematics, scientific computing, machine learning, and software development. My experience combines advanced mathematical problem-solving, research methodology, and modern software...Hello and welcome! I am a Full Stack Developer, AI Engineer, and Mathematics Researcher with a strong academic background in mathematics, scientific computing, machine learning, and software development. My experience combines advanced mathematical problem-solving, research methodology, and modern software engineering to create efficient, scalable, and intelligent solutions for businesses, startups, and individuals. 🎓 Academic Background ✓ Master's Degree in Mathematics ✓ Doctoral Research Experience in Mathematics ✓ Published Research Author ✓ Scientific Computing & Mathematical Modeling ✓ Advanced Statistics & Data Analysis 💻 Development Expertise 🔹 Frontend Development • React.js • Next.js • Vue.js • TypeScript • JavaScript (ES6+) • HTML5, CSS3, Tailwind CSS 🔹 Backend Development • Node.js & Express.js • Python (Django, Flask, FastAPI) • PHP & Laravel • RESTful APIs • Authentication & Security 🔹 Database Systems • PostgreSQL • MySQL • MongoDB • SQLite • Database Design & Optimization 🤖 Artificial Intelligence & Data Science • OpenAI & ChatGPT Integration • AI Chatbot Development • LangChain Applications • Machine Learning Solutions • Natural Language Processing (NLP) • TensorFlow & PyTorch • Data Analytics & Visualization • Predictive Modeling • Automation & Intelligent Workflows ☁️ Cloud & DevOps • AWS Cloud Services • Google Cloud Platform (GCP) • Docker & Kubernetes • CI/CD Pipelines • Linux Server Administration • Nginx & Apache • Infrastructure Automation 📊 Mathematics & Research My mathematical background enables me to approach projects with strong analytical thinking and precision. Areas of interest include: • Machine Learning • Graph Theory • Optimization Algorithms • Statistical Analysis • Scientific Computing • Linear Programming • Mathematical Modeling • Data Mining ⭐ Why Choose Me? ✓ Strong Problem-Solving Skills ✓ Research-Oriented Mindset ✓ Clean & Maintainable Code ✓ Fast and Clear Communication ✓ Reliable Project Delivery ✓ Scalable and Secure Solutions ✓ Long-Term Technical Support 🎯 My Goal To help clients transform ideas into high-quality digital products through modern web technologies, artificial intelligence, and data-driven solutions. Whether you need a web application, AI-powered system, automation workflow, API integration, database solution, or custom software, I am ready to help bring your vision to life. 📩 Feel free to contact me to discuss your project. less -
Hire toqeer74
I am a full-stack developer and IT Consultant helping startups, businesses, and growing brands build custom websites, web applications, APIs, dashboards, and scalable digital solutions. I focus on delivering secure, high-performing, and business-focused systems that solve real problems and support long-term growth. ...I am a full-stack developer and IT Consultant helping startups, businesses, and growing brands build custom websites, web applications, APIs, dashboards, and scalable digital solutions. I focus on delivering secure, high-performing, and business-focused systems that solve real problems and support long-term growth. Core Expertise - Custom Websites and Web Applications - Frontend Development with React and Next.js - Backend Development with Node.js, Python, PHP, and Laravel - API Development and Third-Party Integrations - Dashboards, Portals, and Admin Panels - Database Management with MySQL and MongoDB - SEO, GEO, and AEO optimization - AI Automation, AI Chatbots, and AI Agents - Technical Planning and Consultation I also work with Digital Web Crew, a professional development and growth agency that supports clients with practical, reliable, and results-driven digital solutions. This allows me to combine personal technical expertise with a strong team-based approach whenever a project requires broader support. What You Can Expect - Clear and professional communication - Clean, secure, and scalable development - On-time delivery - Strong attention to detail - Long-term support and reliable project handling My goal is simple: to understand your requirements clearly, deliver quality work on time, and build solutions that create real business value. Invite us for a demo, proof of concept, or pilot project. Regards, Toqeer less -
Hire tonybhsl
With over 20 years of experience in Web Development, Software Development, Mobile App Development, and UI/UX Design, we deliver innovative digital solutions that help businesses grow and succeed. Our Motto: "You Think, We Implement." We are passionate about technology and continuously adopt the latest tools,...With over 20 years of experience in Web Development, Software Development, Mobile App Development, and UI/UX Design, we deliver innovative digital solutions that help businesses grow and succeed. Our Motto: "You Think, We Implement." We are passionate about technology and continuously adopt the latest tools, frameworks, and industry best practices to provide high-quality, scalable, and future-ready solutions. Our focus is on delivering projects on time, within budget, and exceeding client expectations. Our Expertise Web Development PHP (All Major Frameworks) WordPress Magento Shopify CakePHP OpenCart E-commerce & Shopping Cart Solutions Angular JavaScript & jQuery HTML5, CSS3 Mobile App Development Android Applications iOS Applications Cross-Platform App Development API Integration Firebase & Push Notifications Design & Branding UI/UX Design Graphic Design Logo Design Adobe Photoshop Adobe Illustrator Database & Backend MySQL Database Management Custom CRM/ERP Development Web Services & API Development We believe in building long-lasting business relationships by delivering reliable, scalable, and innovative digital solutions that create real value for our clients. Let's discuss your project and turn your vision into reality. less -
Hire melopgabriel
I am a Senior Full Stack Developer with 7+ years of experience building modern, scalable, secure, and high-performance web applications. I have successfully delivered SaaS platforms, CRM/ERP systems, e-commerce solutions, AI-powered applications, customer portals, admin dashboards, workflow automation, real-time...I am a Senior Full Stack Developer with 7+ years of experience building modern, scalable, secure, and high-performance web applications. I have successfully delivered SaaS platforms, CRM/ERP systems, e-commerce solutions, AI-powered applications, customer portals, admin dashboards, workflow automation, real-time applications, and RESTful/API-driven platforms. I manage the complete software development lifecycle—from planning, architecture, UI/UX implementation, backend development, database design, API integration, deployment, optimization, and long-term maintenance. Core Skills 🔹 Frontend: React.js, Next.js, Vue.js, Nuxt.js, Angular, TypeScript, JavaScript (ES6+), HTML5, CSS3, SCSS, Tailwind CSS, Bootstrap, Material UI, Shadcn UI, PrimeVue, Inertia.js, Redux, Vuex, Pinia, TanStack Query, Vite, Webpack 🔹 Backend: PHP, Laravel, Node.js, Express.js, NestJS, Python, Django, FastAPI, CodeIgniter, REST APIs, GraphQL, Microservices, Authentication (JWT, OAuth, Laravel Passport, Sanctum), WebSockets, Queue Systems, Background Jobs, Payment Gateway Integration, Third-party APIs 🔹 CMS & E-commerce: WordPress, WooCommerce, Shopify, Joomla, Elementor, Custom Plugins, Theme Development, Headless CMS 🔹 Databases: MySQL, PostgreSQL, MongoDB, SQLite, Redis, Database Design, Query Optimization, Data Modeling 🔹 AI & LLMs: OpenAI, Claude, Gemini, AI Chatbots, AI Assistants, Prompt Engineering, RAG Applications, Vector Databases, MCP Integration, AI Workflow Automation, Cursor, Claude Code, GitHub Copilot, Lovable, Replit 🔹 Automation: n8n, Zapier, Make (Integromat), Python Automation, API Automation, CRM Automation, Lead Generation, Marketing Automation, Business Process Automation 🔹 Web Scraping & Data: Python, Selenium, Playwright, Scrapy, BeautifulSoup, Puppeteer, ETL Pipelines, Data Mining, Data Parsing, Data Cleaning, Excel Automation, PDF Extraction, Power BI 🔹 Cloud & DevOps: Docker, Docker Compose, Git, GitHub, GitLab, Bitbucket, CI/CD, GitHub Actions, Linux, Nginx, Apache, AWS, DigitalOcean, Firebase, Vercel, Netlify, Cloudflare 🔹 Testing: PHPUnit, Jest, Cypress, Playwright, Unit Testing, Integration Testing, End-to-End Testing, API Testing, Postman 🔹 Integrations: Stripe, PayPal, Twilio, SendGrid, Mailchimp, HubSpot, Salesforce, Google APIs, Microsoft APIs, Slack, Discord, WhatsApp, Shopify APIs, Social Media APIs 🔹 Data Engineering & Business Intelligence: Power BI, Data Visualization, Interactive Dashboards, Business Intelligence (BI), ETL Pipelines, Data Warehousing, Data Modeling, SQL Analytics, KPI Dashboards, Reporting & Analytics, Power Query, DAX, Excel Automation, Data Transformation, Data Cleansing, Data Parsing, Data Mining, Web Scraping, Data Extraction, Data Integration, CSV/Excel Processing, PDF Extraction, Python (Pandas, NumPy), Selenium, Playwright, Scrapy, Puppeteer I write clean, maintainable, and scalable code while following best practices, SOLID principles, security standards, and agile methodologies. less
