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Dmitry D.
$35/hr
100% Job Success
$2M+ earned
Available now
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🏆 $2M+ Earned on Upwork — Placing Me Among a Very Small Percentage of Freelancers on the Platform 👋 I'm a veteran PHP full stack developer with 25+ years of hands-on experience building scalable, high-performance web applications across PHP, JavaScript, Laravel and modern cloud-native stacks. From SaaS platforms and ERPs to eCommerce marketplaces, scrapers, LMSs, and automation tools - I’ve engineered over 700+ custom web solutions for startups, enterprises, and government clients worldwide. With a deep command of both backend and frontend technologies, I specialize in crafting robust full-stack architectures that scale to millions of users, run efficiently in production, and support complex business logic. 🏆 What I Bring to Your Project ✔️ 25+ years of experience in full-stack web development, backend engineering & cloud deployment ✔️ 700+ web & SaaS products shipped across 40+ industries ✔️ 98%+ client satisfaction rate on long-term projects ✔️ 100M+ end users served by platforms I've built ✔️ Reduced legacy system costs by 60% through full-stack modernization ✔️ Decreased API latency by 70% via PHP/Symfony optimization ✔️ Built 30+ automation tools & custom CRMs saving 1000s of manual hours ✔️ Migrated 50+ monoliths to modern modular & microservice architectures ✔️ Led cross-functional full-stack teams across 12 countries 🛠️ Tech Stack at a Glance Languages: PHP, JavaScript, TypeScript, SQL, HTML, CSS Backend: Symfony, Laravel, Zend, Express, Adonis.js Frontend: React, Vue, Angular, jQuery, Backbone, Ember DevOps: Docker, Ansible, Jenkins, Capifony, AWS, CloudFront DBs: MySQL, PostgreSQL, MongoDB, Neo4j, ClickHouse CMS/eCommerce: WordPress, Drupal, Magento, Sylius APIs & Tools: Stripe, PayPal, Google APIs, AWS, Twilio, Salesforce, YouTube ORMs: Doctrine ORM/ODM, Zend DB Table 🚀 My Full-stack Development Capabilities 📌 Backend Development (PHP / Node.js / APIs / Microservices) Expert in PHP 8.3, Symfony (4–6), Laravel, Zend, Express.js API-first development (REST, GraphQL), Swagger, API Platform High-performance systems with Redis, PostgreSQL, ClickHouse, MongoDB Cloud-native development with AWS Lambda, API Gateway, Aurora Serverless Message queues: RabbitMQ, SQS, Kafka, Mercure, Symfony Messenger PCI-DSS compliant apps, OAuth2 auth flows, encryption & security best practices Real-time dashboards with ReactPHP, Swoole, and WebSocket integrations Complex cron orchestration, CLI tools, caching layers, task queues 📌 Frontend Development (React, Angular, Vue, jQuery) Responsive UIs using React, Redux, Vue.js, AngularJS, Backbone Modern JavaScript (ES6+), TypeScript, Webpack, Vite, Gulp, Babel Headless CMS & frontend frameworks for eCommerce & SaaS Data-heavy dashboards, admin panels, custom CMS interfaces Advanced UI elements: Leaflet maps, Fabric.js, Three.js visualizations Bootstrap, Tailwind CSS, Material UI, Semantic UI 📌 Full-stack Architecture & DevOps Monolith → Microservices migration expert Dockerized environments, CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins) Infrastructure as Code (Ansible, Packer), AWS Cloud (EC2, S3, CloudFront, Beanstalk) Composer, npm, Capifony, PHPUnit, Behat, Selenium for automated QA 🧠 Specialized Domains & Product Types SaaS (CRM, invoicing, analytics, HR, booking systems) Web automation, crawlers, scrapers, proxies, and bot detection handling eLearning platforms, SCORM/quiz engines, custom LMS Marketplaces, POS systems, ERP/Inventory, order management tools Web-to-print solutions, Chrome extensions, location-based services B2B dashboards, user portals, mobile admin tools (Cordova, React Native) 💼 Industries Served FinTech, LegalTech, PropTech, eCommerce, Healthcare, Travel, Real Estate Government & Defense, Education, Enterprise IT, Media & Publishing Startups (MVPs & scalable builds), Enterprise modernization, White-label platforms Whether you're launching a new SaaS product, migrating legacy systems, scaling to enterprise, or automating mission-critical workflows - I bring decades of real-world full-stack web development experience, technical leadership, and business-driven thinking to every line of code. 📩 Reach out to discuss your next full-stack PHP/JS project — I’m here to help you build it right from day one. ✅ Let’s Build Something that lasts
Dmitry D. has worked .
Ixobit Corporation (DBA Sibers)
Associated with
Ixobit Corporation (DBA Sibers)
$20M+
earned
Abhishek C.
$18/hr
100% Job Success
$100K+ earned
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With almost a decade of hands-on experience in full-stack development, I specialize in crafting scalable, component-driven web applications, built to solve real-world business challenges. My primary focus is frontend engineering using Angular (v2+ to v19), complemented by strong backend capabilities in .NET Core and robust API integrations. I have delivered tailored solutions across diverse industries including logistics, healthcare, compliance, fintech, ed-tech, automotive, and workflow automation, consistently aligning technical execution with business goals. Throughout my career, I have helped clients turn complex business challenges into functional, reliable, and user-friendly systems, whether through a complete application built from scratch or modernizing legacy platforms using the latest technologies. I am passionate about writing clean, maintainable code, and aligning my work with real business outcomes. Core Technologies { Frontend Development } - Angular (v2 to v19), AngularJS - TypeScript, JavaScript, RxJS, jQuery - HTML5, CSS3, SCSS, Bootstrap, Angular Material, Highcharts, Chart.js, D3.js - Reusable component libraries, lazy loading, NgRx for state management, NX for microfrontend architecture { Backend & API Integration } - .NET Core (3.1, 5.0, 6.0), ASP.NET MVC, C#, RESTful APIs - Integration with Python APIs, third-party services (Twilio, Stripe, Google APIs) { Databases } - SQL Server, PostgreSQL, MySQL - Tools & DevOps: - Azure DevOps, CI/CD pipelines, Jenkins - Git, Bitbucket, SVN - JIRA, Trello, Slack for Agile collaboration - Cloud Services: - Azure Cloud, Amazon EC2, S3 { Application Delivered in Different Domain } - Custom SaaS Platforms (Multi-tenant, Microfrontend) - Logistics and Freight Marketplaces with live tracking and ETA logic - Compliance Management and Regulatory Risk Systems - Peer-to-Peer Rental Platforms with secure booking and user verification - Automotive Dealership & Lending Automation Tools - Real-Time Workflow Automation Systems - Face Recognition and Biometric Verification Interfaces - Event and Stall Management Portals - Learning Management Systems (LMS) and E-learning Portals { Strengths and Development Philosophy } - Strong grasp of scalable frontend architecture and modular code organization - Experience building dynamic, real-time systems with complex UI logic - Deep understanding of API consumption and integration workflows - Skilled in upgrading Angular versions and modernizing legacy codebases - Committed to Agile development, sprint planning, and timely delivery - Prioritizing security, performance, and user experience in every build I bring not just technical execution but also product-thinking. I take time to understand the business logic, user flows, and long-term goals behind a system. My aim is always to deliver stable, well-documented, and production-ready code that evolves with your product. If you're looking for a long-term development partner who can turn your ideas into structured, testable, and scalable web applications, let's connect. I’m open to both solo engagements and integrated team roles.
Abhishek C. has worked .
DITSTEK INNOVATIONS
Associated with
DITSTEK INNOVATIONS
$2M+
earned
Hitesh J.
$20/hr
100% Job Success
$50K+ earned
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Its been 10 years I have been serving as a Full Stack developer and delivered complete solutions from designing to development and further deployed them on various hosting providers and cloud computing platforms. Front-end technologies : Vue.js, AngularJS/2/4/5/6/7/8, React.js, Redux, MobX, Vue.js, Express.js, TypeScript, Webpack, Bootstrap, HTML, HTML5, CSS / CSS3, JavaScript, jQuery, AJAX. Back-end technologies like: PHP5, Node, CorePHP, Symfony, Laravel, CodeIgniter, Zend, WordPress, CakePHP Database : SQL, MySQL, MongoDB, Firebase, PostgresSQL 3rd party APIs: - Amazon Web Services, Azure, Google Cloud Engine, Shared Hosting, etc - Facebook, Instagram, Twitter, Flickr, Pinterest, 500px, Google Maps, Google Place, Google Directions, Youtube. - Pypal, Stripe, Braintree. - SendGrid, Mandrill, Mailchimp, Mailjet, CampaignMonitor, Postmark, Amazon SES. - Cloud services: AWS and Azure - Teamwork with Git(Github, Jira, Bitbucket), Slac and Trello Web Skills: - Vue.js, Nuxt, Vuex, Vuetify - Elixir, Phoenix. - ReactJS, Redux, Mobx. - NodeJS, ExpressJS, HapiJS. - Ejabberd: for building chat XMPP server likes Whatsapp. - Strong in TCP/UDP/UDP Reliable socket. - Strong in RTMP/WebRTC for live broadcasting. - MySQL, PostgreSQL, NoSQL. - Restful & GraphQL. - Amazon Web Services, Windows Azure, Google App Engine, etc - Vagrant & Docker. - Eslint, Mocha, Jest, Enzyme, Ava. - Design application architecture. Mobile Skills: - React Native. - ES6 React, React Native, Redux, Backbone.js, Browserify, Gulp, Grunt, HTML & CSS BACKEND - PHP, Laravel, MySql -Node.js, MySQL, PostgreSQL. - Strong in TCP/UDP/UDP Reliable socket. - Strong in animation and performance optimization. - Jest, Ava, Enzyme for unit testing. - Gitlab CI, Fastlane. Soft-skills: - Good in business thinking. - Strong technical skills. - Strong in technical architecture. - Quick learner. I'm always hungry to learn new things. So if you want to make something innovative, I'm very excited. - Fluently English communication and good in reading, writing also. - Strong management, document, customer support skills. - Customer support 24/7 via email, Chat and phone. - Friendly, humble and honest. Kindly INVITE ME for interview as per your convenience. So that I can take more details about the project work and show you my expertise.
Hitesh J. has worked .
Revinfotech Private Limited
Associated with
Revinfotech Private Limited
$25/hr
100% Job Success
$40K+ earned
Available now
Offers consultations
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𝟖+ 𝐲𝐞𝐚𝐫𝐬 | 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | 𝐓𝐨𝐩 𝐫𝐚𝐭𝐞𝐝 | 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬 | 𝟏𝟎𝟎% 𝐣𝐬𝐬 I build production-ready Web apps, SaaS platforms, internal tools, and ecommerce systems as a Full Stack Developer who owns the entire stack, from database design through deployment on AWS. Over 8+ years, I've delivered SaaS products where I led technical direction end-to-end as a Full Stack Developer. My work typically involves designing backend architecture in Node.js and Express, building scalable APIs, and pairing them with clean React.js, Next.js or Angular frontends. I don't split roles, I architect, build, test and ship complete systems myself. What I focus on as a Full Stack Developer: My day-to-day as a Full Stack Developer means thinking about both layers simultaneously. A robust backend doesn't matter if the frontend can't consume it cleanly. A beautiful interface breaks if the API doesn't scale. So I design backwards from user workflows and forwards from infrastructure constraints. When you hire a Full Stack Developer like me, you're not paying for coverage across two domains, you're getting someone who treats the entire system as one cohesive problem. That changes how I approach every decision, from schema design to component architecture. Core strengths as a Full Stack Developer: I regularly work on Full Stack Developer projects that require: Multi-tenant SaaS architectures with role-based access and permissions Complex internal dashboards and workflow tools for teams Ecommerce platforms and custom Shopify app builds Payment integrations, ledger systems, and financial workflows Third-party API integrations and real-time data sync pipelines AI-powered backend features, not just prompt wrappers, but thoughtful integration into actual product workflows Scalable query logic and database optimization from a Full Stack Developer perspective On the backend side, where most of my time sits as a Full Stack Developer, I design services in Node.js and Express, manage PostgreSQL and MongoDB databases, handle background jobs and async workflows, and deploy everything on AWS infrastructure (EC2, S3, CloudFront, Route 53). TypeScript is standard across my Full Stack Developer work. I approach backend design the way a Full Stack Developer should: not in isolation, but thinking about how frontend code will consume it, how operations teams will monitor it, and how it'll perform under real load. On the frontend side, as part of being a Full Stack Developer, I build interfaces in React.js, Next.js or Angular depending on what the product needs. I prioritize performance, accessibility and maintainability over trendy patterns. Working as a Full Stack Developer on the frontend means understanding that component choices cascade into backend implications. If a page loads 100 records, that 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 ▪ 8+ years of professional Full Stack development ▪ Strong expertise in MEAN/MERN (MongoDB, Express, Angular/React, Node.js) ▪ Experience as a Lead Full stack Developer owning architecture & technical decisions ▪ Delivered AI-enabled web applications for startups & SaaS companies ▪ Proven ability to optimize performance, scalability & system reliability 𝐌𝐲 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 Frontend ▪ React.js, Next.js, Angular, TypeScript, JavaScript (ES6+), HTML5, CSS3, SASS / SCSS, Responsive & Cross-browser UI Backend ▪ Node.js, Express.js, REST APIs, Authentication & Authorization Databases ▪ MongoDB, MySQL, PostgreSQL 𝐀𝐈, 𝐋𝐋𝐌𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ▪ LLM & Generative AI integration (OpenAI, Anthropic, Gemini, LLaMA) ▪ AI workflows using LangChain, Vertex AI & Document AI ▪ Machine Learning & Deep Learning (PyTorch, TensorFlow, scikit-learn) ▪ Computer Vision solutions using OpenCV ▪ AI automation & orchestration using n8n ▪ AI-assisted development with Antigravity, CursorAI & GitHub Copilot 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐅𝐨𝐜𝐮𝐬 𝐎𝐧 ✔ Full Stack Development (MEAN, MERN) ✔ Angular Application Development ✔ React.js Frontend Development ✔ Node.js Backend Development ✔ AI-Integrated Web Applications ✔ SaaS & Startup MVP Development ✔ API Development & Integration ✔ Performance Optimization ✔ AI Development 𝐃𝐨𝐦𝐚𝐢𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ▪ Custom Digital Products & Software Solutions ▪ AI-Powered Applications & Intelligent Systems ▪ Business Process Automation Tools ▪ Startup MVPs (Idea → Execution) ▪ Dashboards & Admin Panels ▪ CRM & Custom Business Applications 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 ✔ Free 30-minute consultation before starting ✔ 8+ years of Full Stack experience ✔ Expert in Angular, React.js, Node.js, MEAN/MERN & AI ✔ Clean, scalable & maintainable code ✔ Clear communication & proactive ownership Angular Developer | React.js Developer | Node.js Developer | MEAN Stack Developer | MERN Stack Developer | Full Stack Developer | AI Engineer | JavaScript Developer | SaaS Developer | Startup Developer | Supabase
Gargi K. has worked .
Prashant M.
$25/hr
100% Job Success
$400K+ earned
Available now
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𝗜 𝗮𝗺 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟮+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗰𝗼𝘂𝗽𝗹𝗲𝗱 𝘄𝗶𝘁𝗵 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 in Python 3, FastAPI, Django/ Django REST Framework, Flask, JavaScript, NodeJS, ExpressJS, PHP/ Laravel, RESTful API, JWT(JSON Web Token), JSON, XML, Elasticsearch, Apollo/ GraphQL, AWS EC2, S3, ELB, REDIS, Amplify, Serverless Lambdas, Terraform, API Gateway, Azure, Google Cloud Platform, MySQL, Postgres, MongoDB, Supabase, Docker, Docker Swarm, Kubernetes k8, Microservices architecture, Linux, etc. My expertise extends to HTML5, CSS3, jQuery, Vue.js, React.js, Next.js, Nuxt.js, Angular(up to version 19), Bootstrap 4/5, TailwindCSS, Material UI, SCSS, SASS, etc. And, I have solid experience with DevOps, including CI/ CD, Git, etc. I'm proficient in Git for version control and utilizing Docker containers for seamless deployment. 𝗔𝗜 𝗧𝗼𝗼𝗹𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: 𝗖𝘂𝗿𝘀𝗼𝗿 𝗔𝗜 | 𝗥𝗲𝗽𝗹𝗶𝘁 | 𝗟𝗼𝘃𝗮𝗯𝗹𝗲 | 𝗚𝗼𝗛𝗶𝗴𝗵𝗟𝗲𝘃𝗲𝗹 | 𝗔𝗶𝗿𝘁𝗮𝗯𝗹𝗲 | 𝗕𝗮𝘀𝗲 𝟰𝟰 | 𝗢𝗽𝗲𝗻𝗔𝗜 | 𝗛𝘂𝗴𝗴𝗶𝗻𝗴 𝗙𝗮𝗰𝗲 | 𝗖𝗹𝗮𝘂𝗱𝗲 | 𝗖𝗼-𝗣𝗶𝗹𝗼𝘁 | 𝗠𝘆 𝘃𝗮𝗹𝘂𝗲-𝗮𝗱𝗱𝗲𝗱 𝘀𝗸𝗶𝗹𝗹𝘀: ✅Ability to collaborate effectively with a team of developers, QA's, etc. ✅Excellent problem-solving and analytical skills. ✅Strong work ethic and attention to detail. ✅Ability to learn quickly and adapt to new technologies. ✅Regular meetings on project status/ updates. ✅Scrum, Kanban, Agile, Jira, Jenkins, Experience. ✅Degree in the Computer Science field. I have used Git for version control for efficient collaboration, code versioning, branching, and merging. I also used platforms like GitHub, GitLab, and Bitbucket to provide additional collaboration features. I am fluent in English and possess excellent written and verbal communication skills. PS- As a full-stack Web & Mobile developer, I believe in complete transparency. My pricing is clear and upfront, no hidden fees, no surprise costs. I stand by my work with a portfolio of verified client reviews on Upwork that reflect consistent, honest delivery. When you're choosing a developer, trust and clarity should come standard, and that's exactly what I offer. Let's connect.
Prashant M. has worked .
Impinge Software Solutions LLP
Associated with
Impinge Software Solutions LLP
$10M+
earned
Mostafa R.
$40/hr
100% Job Success
Available now
Offers consultations
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📌 I'm a professional full stack developer with 12+ years of experience with good analytical and programming skills 📌 I have completed many projects ( +70 project ) and worked hundred of hours ( +7600hr ) on Upwork for clients and companies from all over the world, which made me well adapted to work with both startups and big sized companies. 📌 What I can/know/etc.: Backend: .Net , Node.js FrontEnd: Angular , Vue.js 3 Payment Getways: Usaepay , CardKnox , Stripe Database: Ms Sql Server ,PostgreSQL , MongoDB ORM: Entity Framework , Mongoose , Sequelize Others : SignalR , Bootstrap ,Tailwind ,SCSS ,HTML, CSS, JavaScript, jQuery VCS: Github, VSO , Bitbucket Other:Twillio ( IVR , SMS , FAX ) , 📌 I'd be happy to offer my services, feel free to contact me .
Mostafa R. has worked .
Ajay C.
$20/hr
100% Job Success
$90K+ earned
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👉 Over 9 years of experience in front-end development. 👉 Strong understanding of front-end principles. 👉 Successful delivery of various projects, from small-scale to enterprise-level systems. 👉 Known for making interactive and user friendly UI. 👉 Have understanding of user interface flow to reduce the learning curve of the software. Frameworks and languages ✅ Angular ✅ ReactJS ✅ Next.js ✅ Javascript/Typescript ✅ JSX ✅ State management (Redux) ✅ HTML, CSS, SCSS and Tailwind UI/UX components libraries: ✅ Angular Material & MUI(React) ✅ Bootstrap ✅ PrimeNg and Primereact ✅ AG Grid ❇️ What I am looking for? It's important for me to build long-term relationships with my clients, so I'm primarily looking for long-term projects. But don't hesitate to contact me if you have a small task. I am sure you will be excited to work with me and surely come back with your next project.
Denis S.
$45/hr
100% Job Success
$600K+ earned
Available now
Offers consultations
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🚀 Top 1% of Talent in 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & Technology Leadership ⚡ Building 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, enterprise platforms, SaaS solutions, and scalable digital ecosystems 🔧 Using modern AI tools including Cursor, Claude Code, GitHub Copilot, GPT-4/GPT-4o, and Claude Sonnet/Opus 🤖 Experienced in AI agents, LLM integrations, AI automation, and multi-agent development systems 🚀 Accelerating development with 𝐀𝐈-𝐚𝐬𝐬𝐢𝐬𝐭𝐞𝐝 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢, agentic coding, and automation-driven workflows 💻 𝐖𝐇𝐀𝐓 𝐘𝐎𝐔 𝐀𝐍𝐃 𝐘𝐎𝐔𝐑 𝐓𝐄𝐀𝐌 𝐆𝐄𝐓 Full-Stack Web Development Master's - high-performance web application development utilizing React, Node.js, and PHP to build scalable SaaS, FinTech, and Enterprise software. AI & Automation Systems Innovators - custom LLM applications, RAG pipelines, and intelligent workflow automations seamlessly integrated into your infrastructure. 📊 𝐀𝐂𝐇𝐈𝐄𝐕𝐄𝐌𝐄𝐍𝐓𝐒 𝐈𝐍 𝐍𝐔𝐌𝐁𝐄𝐑𝐒 (𝐁𝐔𝐒𝐈𝐍𝐄𝐒𝐒 & 𝐒𝐘𝐒𝐓𝐄𝐌 𝐈𝐌𝐏𝐀𝐂𝐓) 25+ years, 50,000+ engineering hours, 200+ successful launches delivered as a Senior Full Stack Developer and tech leader across global industries. ◾ Full-Stack Web Development for Enterprise & SaaS Platforms: Engineered and launched custom AI-powered SaaS platforms that scaled to millions of active users with 99.99% operational uptime. Accelerated product development cycles by 40% by deploying optimized React component libraries and agile workflows. Backend Architecture & API Engineering (Node.js & PHP): Reduced server infrastructure costs by 50% by migrating legacy monoliths into scalable microservices using Node.js, NestJS, and PHP. Optimized heavy data-processing pipelines, reducing database latency by 70% via tailored PostgreSQL, MongoDB, and MySQL schemas. ◾ AI App Development & Workflow Automation: Developed and integrated proprietary OpenAI GPT, Claude, and Gemini models into operational CRMs, increasing client workflow efficiency by 180%. Successfully deployed secure, HIPAA-compliant healthcare applications and high-security FinTech platforms with built-in Stripe / PayPal integrations. 🎯 𝐖𝐇𝐄𝐑𝐄 𝐖𝐄 𝐃𝐄𝐋𝐈𝐕𝐄𝐑 (𝐂𝐎𝐑𝐄 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄) As a Full Stack Developer & Solution Architect: I handle the full cycle of Full-Stack Web Development, defining technical roadmaps, designing scalable web applications, and ensuring bulletproof cyber-security protocols. As a Front-End Development Expert: Crafting pixel-perfect, highly responsive user interfaces using React, Next.js, TypeScript, Vue.js, and Angular to ensure maximum conversion rates and premium UX. As a Back-End Development Authority: Designing ultra-fast APIs and core services with Node.js (Express/NestJS), PHP, Python (FastAPI/Django), and modern Serverless Stack architectures. As a Cloud & DevOps Engineer: Implementing enterprise-grade cloud deployments via AWS, Google Cloud, and Azure, utilizing Docker, Kubernetes, and automated CI/CD pipelines. 🛠 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊 & 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄 𝐄𝐂𝐎𝐒𝐘𝐒𝐓𝐄𝐌 Frontend Suite: React, Next.js, TypeScript, Tailwind CSS, Vue.js, Angular, Responsive Web Design. Backend Core: Node.js, NestJS, Express.js, PHP, Python, FastAPI, Django. Databases & Caching: PostgreSQL, MongoDB, MySQL, Redis. APIs & Global Integrations: REST APIs, GraphQL, Webhooks, Stripe, PayPal, Twilio, SendGrid. Cloud & DevOps Platform: AWS (Amazon Web Services), Google Cloud, Azure, Docker, Kubernetes, Jenkins, GitHub Actions CI/CD. 🧠 𝐃𝐄𝐄𝐏 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄 AI & SaaS Startups: Rapid MVP development, RAG pipelines, AI chatbots, and predictive analytics tools. FinTech & E-commerce: High-load payment gateways, customized checkout solutions, compliance, and ledger systems. Healthcare & PropTech: Automated workflow systems, secure patient portals, CRM platforms, and real-time data visualization dashboards. Enterprise Automation: Heavy B2B platforms, marketplaces, and cross-platform integrations. ⚡ 𝐇𝐎𝐖 𝐖𝐄 𝐖𝐎𝐑𝐊 𝐓𝐎𝐆𝐄𝐓𝐇𝐄𝐑 Strategic Discovery: As a CTO, I align your business goals, success metrics, and timeline constraints before writing a single line of code. Architecture Blueprinting: We map out the core database schemas, React frontend components, and Node.js / PHP API flows to ensure long-term scalability. Agile Iteration: Backed by the senior engineering powerhouse at Onix-Systems, we deliver high-velocity sprints with predictable, production-ready releases every 2 weeks. DevOps & Launch: Secure deployment across AWS/GCP/Azure with ongoing tech partnership and proactive optimization based on product metrics. Looking for a Senior Full Stack Developer and a Full-Stack Web Development team to turn your complex concept into a world-class, scalable web platform? 𝐋𝐞𝐭’𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭! Send over your project brief, scope, or existing codebase notes, and I’ll provide a high-level strategic roadmap for your next big launch. ☎️
Onix-Systems, LLC
Associated with
Onix-Systems, LLC
$20M+
earned
Vipin P.
$15/hr
100% Job Success
$300K+ earned
Available now
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I help startups and businesses build scalable SaaS platforms, web applications, and mobile apps from MVP to fully production-ready solutions. With 19+ years of experience in full-stack and mobile app development, I focus on creating fast, reliable, and scalable products that solve real business problems and support long-term growth. My expertise includes: • Full-stack web application development • Mobile app development (iOS & Android) • AI-powered features & workflow automation • SaaS platforms & custom business software • CRM, ERP & admin dashboard systems • API development & third-party integrations • Payment gateway integrations • Application scaling, optimization & maintenance Tech Stack: Frontend: React.js, Next.js, Angular, JavaScript, TypeScript Backend: Node.js, Express.js, Laravel, PHP, Python/Django Mobile: Flutter, React Native, Swift, Kotlin Database: MySQL, MongoDB, PostgreSQL, Firebase Cloud & Integrations: REST APIs, OpenAI APIs, Stripe, PayPal, Google Pay, AWS AI & Automation Experience: • OpenAI / ChatGPT integrations • AI chatbots & intelligent assistants • OCR & document processing systems • AI-powered SaaS applications • Workflow automation & smart search systems I have worked on SaaS products, eCommerce platforms, enterprise systems, marketplaces, healthcare applications, real estate platforms, finance systems, and startup MVPs for clients across multiple industries. ✔ 190+ successfully completed projects ✔ $300K+ earnings on Upwork ✔ 100% Job Success Score ✔ 6,600+ hours worked I don’t just develop applications, I help clients make the right technical decisions to build scalable, maintainable, and business-focused digital products. If you need a reliable full-stack developer who can take ownership and deliver high-quality web or mobile solutions end-to-end, let’s discuss your project.
Vipin P. has worked .
Brain Technosys Pvt. Ltd.
Associated with
Brain Technosys Pvt. Ltd.
$3M+
earned
Yurii K.
$40/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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Reliable .NET Full Stack Developer for Scalable Web Solutions I’m a .NET Full Stack Developer who delivers production-ready features on time, keeps development cost-efficient, and builds scalable web solutions that grow with your business. As a Senior .NET Full Stack Developer, I design and develop secure, high-performance applications using .NET and Angular, focusing on clean architecture, scalability, and long-term maintainability. I’m a .NET Developer who aligns technical decisions with business goals. Every solution I deliver as a .NET Full Stack Developer is production-ready, reliable, and built for real users. Experience & Credentials Certified Senior .NET Full Stack Developer 8+ years of commercial experience as a .NET Developer and Tech Lead 30+ completed projects on Upwork 100+ delivered projects with my Intelvision team (last 5 years) 100% Job Success | 1900+ hours | $100K+ earned Trusted .NET Developer for Visoplan, ING+, Jincom, Kiflo, and more When clients need a reliable .NET Full Stack Developer, they come back. Core Role: .NET Full Stack Developer As a .NET Full Stack Developer, I handle frontend, backend, APIs, databases, cloud infrastructure, and DevOps. As a .NET Developer, I ensure security, performance, and scalability from day one. I work as: .NET Full Stack Developer for SaaS platforms .NET Full Stack Developer for enterprise systems .NET Full Stack Developer for MVP and startup products .NET Developer for long-term system growth Core Technologies (.NET Full Stack) .NET Full Stack .NET Developer (ASP NET Core, Web API, SignalR) Angular (enterprise SPA, NgRx, RxJS) Node.js (for hybrid architectures when needed) Every project is led by a .NET Full Stack Developer, not a generalist. Backend & Architecture (.NET Developer Expertise) As a .NET Developer, I build backend systems using: RabbitMQ, Docker, Kubernetes, Redis, GraphQL, SignalR, Elasticsearch, Hangfire, MediatR, Quartz NET, Akka NET, Autofac, Dapper, NHibernate, Swagger, FluentValidation, Serilog, NLog This is what separates a .NET Full Stack Developer from a basic coder. Frontend Development (Angular) As a .NET Full Stack Developer, I pair backend power with modern UI development: Angular, TypeScript, SPA, PWA, NgRx, RxJS, Angular Universal, NG-ZORRO, Tailwind CSS, MUI, Ant Design, Lighthouse optimization A strong .NET Developer always delivers a strong frontend. Cloud, DevOps & CI/CD (.NET Full Stack) Azure, AWS, Docker, Kubernetes, GitHub Actions, GitLab CI, Azure DevOps A real .NET Full Stack Developer owns deployment, scaling, and monitoring. Security & Authentication (.NET Developer Focus) Auth0, IdentityServer4, Azure AD B2C, OAuth 2.0, JWT, Azure Key Vault, AWS IAM Security is mandatory for any .NET Full Stack Developer. Business & API Integrations Stripe, Xero, QuickBooks, Microsoft Graph API, Salesforce, SAP, Dynamics As a .NET Developer, I build systems that integrate with real business tools. Testing & Quality xUnit, NUnit, Moq, MSTest, Karma, Jest A professional .NET Full Stack Developer ships tested code. Industry Experience as .NET Full Stack Developer SaaS platforms FinTech systems PropTech and ConTech Logistics and supply chain Custom enterprise solutions Each domain was delivered by a .NET Full Stack Developer with real production experience. Why Clients Choose Me as a .NET Full Stack Developer Deep backend expertise as a .NET Developer Strong Angular frontend delivery Clean architecture and scalability Business-oriented mindset Long-term partnership approach Whether you need an MVP, SaaS, PoC, or enterprise system, you need a .NET Full Stack Developer, not just a coder. Let’s Build Your Product If you’re looking for a reliable .NET Full Stack Developer, an experienced .NET Developer, and a partner who delivers on time, let’s talk. Your product deserves a .NET Full Stack Developer who understands scale, security, and growth.
Yurii K. has worked .
Intelvision
Associated with
Intelvision
$100K+
earned