Talent badge filter
Select talent location
Select talent time zones
United Arab Emirates
$35/hr
100%
Job Success
$50K+ earned
Available now
Offers consultations
Start of list.
End of list.
I’m a Top Rated Senior Laravel & React Developer with 12+ years of experience building SaaS platforms, custom web applications, API integrations, and business-critical dashboards.
On Upwork, I’ve completed 3,200+ hours with 100% Job Success and $50K+ earned, helping clients build reliable, scalable, and maintainable web systems.
My Skill Set Includes:
1- PHP backend development for secure, scalable web applications
2- Laravel development using clean MVC architecture
3- React.js development for modern, responsive user interfaces
4- Full-stack development (PHP + React integration)
5- RESTful API development & third-party integrations
6- Custom web applications & SaaS platforms
7- Database design & optimization (MySQL, PostgreSQL)
8- Performance-driven coding for speed and reliability
9- Responsive design using HTML & CSS
I work independently or collaborate efficiently with designers and frontend teams.
𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊𝐒
— 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: PHP, Laravel, REST APIs
— 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React.js, JavaScript (ES6+), HTML5, CSS3
— 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MySQL, PostgreSQL
— 𝐃𝐞𝐯𝐎𝐩𝐬:
1- AWS EC2, S3, RDS
2- Linux server setup
3- Nginx/Apache
4- CI/CD
5- GitHub Actions
6- Docker
7- Deployment automation
8- Monitoring/logging
I manage the full project lifecycle from planning and architecture to deployment and long-term support, combining Full stack developer expertise with Senior DevOps execution.
𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍𝐒 & 𝐀𝐃𝐕𝐀𝐍𝐂𝐄𝐃 𝐅𝐔𝐍𝐂𝐓𝐈𝐎𝐍𝐀𝐋𝐈𝐓𝐘
I have strong experience integrating complex systems and third-party services:
1- Payment gateway integration (Stripe, PayPal)
2- Third-party API integrations (CRMs, analytics tools, services)
3- Custom dashboards & admin panels
4- Secure data handling and scalable architecture
𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄
I’ve worked on projects across multiple industries:
1- SaaS platforms
2- Business & corporate websites
3- E-commerce solutions
4- Custom web applications
5- Health Care
6- Fitness and Support
If you need a senior Laravel/React developer who can take ownership of your application, improve existing systems, build new features, and support long-term growth, feel free to invite me to your project.
Associated with
AIIM ONE
$2K+
earned
$18/hr
100%
Job Success
$20K+ earned
Offers consultations
Start of list.
End of list.
Hey there! Wondering why am I the right choice for your project?
Here are some testimonials from my previous clients:
⭐⭐⭐⭐⭐ 5.00
"If you need someone that is timely, professional, goes above and beyond, and really knows their technical skills, Harwinder is in a league of his own, and one of the best technical professionals I've ever worked with.
Our project was quite difficult, requiring Ai background, high level react skills, and challenges no one has faced, but with Harwinder we were able to overcome every obstacle and able to launch my Ai website in a timely manner.
I can't recommend him enough; if he applies for your job, you know it will be completed on time and professionally done."
⭐⭐⭐⭐⭐ 5.00
"Great lad. He knows what he is doing. Looking forward to working with Harwinder again."
⭐⭐⭐⭐⭐ 5.00
"Easy to work with."
⭐⭐⭐⭐⭐ 5.00
"The service given was very professional and very quick. Would hire again for sure."
⭐⭐⭐⭐⭐ 5.00
"One of the best freelancers I have worked with on upwork and would highly recommend him for all your development projects. Very patient and helpful and the best at what he does."
⭐⭐⭐⭐⭐ 5.00
"He provided me with the perfect results and even before the deadline i provided. It was great working with harwinder."
⭐⭐⭐⭐⭐ 5.00
"Harwinder helped me a lot in taking my business online and setting up my online store."
It was indeed a pleasure working with someone so dedicated, honest, and respectful. He made sure deadlines were met and worked overtime for this project.
Highly recommend using Harwinder for all your web development needs.
Thank you Harwinder!"
many more...
-------------------------
I am Harwinder, a Full-stack web developer.
I have professional skills in React/NextJs, Laravel, WordPress, UI/UX, and more.
I have more than 7-years of experience in this field. You can check out more about me at my personal portfolio website bit.ly/iamhrwndr
I'll be glad to help you with:
✔️Web Application Development.
✔️E-Commerce Development.
✔️SaaS Development
✔️Designing Websites/Apps (Figma)
✔️Bug Fixing,
and much more.....
I am using these technologies!
✅HTML5, CSS3, Javascript
✅ReactJS/NextJS
✅WordPress
✅PHP (Core, Laravel)
✅Figma
and more..
Reson why should you hire me-
✔️Your satisfaction is my priority
✔️Have fluency in Javascript and other technologies
✔️Quick response
✔️Available on weekends
✔️Flexible availability with your time
Please take a closer look at my portfolio. I am sure that you will love my work. You can also see my dedication through this.
Kind Regards
Harwinder S.
Harwinder S.
has worked
.
United States
$50/hr
100%
Job Success
$3K+ earned
Available now
Start of list.
End of list.
Zoho, Web, AI and Automation Expert
Web Development: Senior PHP developer with extensive experience in the Laravel framework. Skilled in frontend technologies such as HTML, JavaScript, and CSS. Proficient in developing, maintaining, and testing web applications using frameworks like CodeIgniter, CakePHP, Yii, Zend, Symfony, and e-commerce platforms such as WordPress, Magento, Shopify, and PrestaShop.
Blockchain and AI: Senior Blockchain and AI developer with a strong background in smart contract, DeFi, AI analytics and web3. Developed AI agent with Blockchain, Llama, OpenAI, Vector DB.
CRM and Automation Systems: Expertise in implementing, integrating, and managing CRM systems such as HubSpot, GoHighLevel, Zoho, SuiteCRM, SugarCRM, Perfex CRM, and Active Campaign.
Automation Tools: Advanced proficiency in automation platforms like Zapier, Pipedream, Make, and Integromat. Skilled in developing custom workflows and automations to streamline business processes, enhance operational efficiency, and seamlessly integrate CRM systems with various business tools including QuickBooks, Xero, Odoo, Kajabi, Klaviyo, Klipfolio, Dear System, and Docusign.
Integration and Support: Proven experience in integrating CRM systems with other business tools using webhooks and automation tools. Provides technical support and troubleshooting for CRM systems and automation tools to resolve issues and optimize performance.
Tanner D.
has worked
.
$35/hr
100%
Job Success
Available now
Start of list.
End of list.
⭐⭐⭐⭐ "Eugene is a smart, highly communicative, and competent developer. He was able to quickly solve our issues and we are eager to work with him again."
"Struggling with slow, outdated web apps or complex tech issues? "
I specialize in optimizing and transforming digital experiences with cutting-edge AI and modern web technologies. With 15+ years of experience in full-stack development, I’ve built and optimized scalable, high-performance web applications that help businesses drive growth.
My expertise lies in solving complex problems and delivering high-performance solutions across various industries, from SaaS and e-commerce to enterprise-level applications. I focus on creating robust, user-friendly web apps that not only meet your technical requirements but also drive business growth.
✅ Case Study 1:
Project: API Integration for E-Commerce:
I worked with an e-commerce platform to integrate a custom API for real-time product data and inventory management. This resulted in a 25% reduction in cart abandonment and improved overall user engagement. The integration streamlined operations and allowed for seamless product updates, driving a 30% increase in monthly sales.
✅ Case Study 2:
Project: WordPress Maintenance & PHP Upgrade:
For a WordPress client, I handled PHP upgrades from v7.4 to 8.x, ensuring full compatibility and improved site performance. This upgrade reduced load times by 40%, improved SEO rankings, and fixed critical security vulnerabilities. The client reported a significant drop in page load times, leading to a better user experience and higher conversion rates.
✅ What I Can Do for You:
- Build scalable apps with React, Next.js, and Laravel.
- Develop AI-powered solutions to enhance user experience and automate tasks.
- Integrate APIs (payments, inventory, marketing tools, etc.).
- Optimize MySQL & PostgreSQL for faster performance.
- Maintain & upgrade existing WordPress sites for better security and performance.
- Integrate Vue.js for modern, responsive web apps.
- Troubleshoot and optimize systems for scalability, security, and speed.
✅ Industries I Work With:
- SaaS & Tech Platforms
- E-Commerce & Retail
- AI Solutions
- Healthtech & Fintech
- Real Estate & Property
💼 If you need a reliable, results-driven developer to create or optimize your web application, integrate AI, or improve performance, let's connect! I’m here to help you achieve scalable, user-friendly solutions that drive business results.
KEYWORDS:
Full Stack Developer, React Developer, Next.js Developer, AI Solutions, AI Integration, Laravel Development, PHP Developer, Web Application Development, SaaS Development, MySQL Optimization, PostgreSQL Development, API Integration, WordPress Maintenance, E-commerce Development, Vue.js Development, Database Optimization, Web Performance Optimization, Custom API Integration, Frontend Development, Backend Development, Mobile App Development.
Eugene M.
has worked
.
Associated with
EMSoft
$25/hr
100%
Job Success
$20K+ earned
Available now
Offers consultations
Start of list.
End of list.
Hi, I'm Bakul Sinha, a highly skilled Full-Stack Developer with over 12 years of experience in designing, developing, and managing scalable web and mobile applications. I specialize in building robust, high-performance solutions tailored to business needs.
✅ Expertise:
Web Development: PHP (Laravel, CodeIgniter), Node.js, React, Angular, Vue.js
Mobile Development: React-Native, Ionic, Hybrid Apps
Database Management: MySQL, PostgreSQL, MongoDB
Server & DevOps: Ubuntu, Nginx, AWS, DigitalOcean, Vultr, Docker, PM2
Payment Gateway & API Integrations: PayPal, Stripe, bKash, Nagad, SSLCommerz
E-commerce & SaaS Platforms: WooCommerce, OpenCart, Prestashop, Custom Solutions
🔹 What I Offer:
✔️ End-to-end development of Web & Mobile Apps
✔️ Custom API & Third-party integrations
✔️ Scalable and secure database architecture
✔️ Performance optimization & best coding practices
✔️ Cloud deployment & server management
I am passionate about delivering high-quality software that meets business goals while ensuring seamless user experiences. If you're looking for a dedicated, detail-oriented, and highly experienced developer, let's connect!
🚀 Let’s build something amazing together!
Bakul S.
has worked
.
$50/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
End of list.
👋 Hi! I’m a 🏆 ⭐️⭐️⭐️⭐️⭐️Top Rated Senior Full Stack Developer / Front End Developer and Head of Engineering at GroupBWT - a 100+ member software company with over 15 years of experience building SaaS platforms, automation systems, data-driven tools, and large-scale enterprise applications.
As a Full Stack Developer and Front End Developer, I design and deliver complete end-to-end systems with a focus on long-term scalability and maintainable architecture. My role as a Full Stack Developer includes system design, backend logic, and infrastructure decisions, while as a Front End Developer I ensure fast, responsive, and conversion-focused interfaces that perform well under real production load.
What we deliver for our clients:
✅ SaaS products supporting 30,000+ active users with real-time collaboration features
✅ Platforms processing over 70,000 API requests per day
✅ Automation systems that reduce manual workflows by 50–65%
✅ Scalable architectures designed to handle 5–8× traffic growth without redesign
🔁 What I Do
📦 End-to-End Application Development (Full Stack Developer / Front End Developer)
As a Full Stack Developer, I build complete systems from scratch, including architecture decisions and deployment strategies. As a Front End Developer, I focus on UI structure, performance, and usability in real production environments.
🔹 SaaS platforms
🔹 Admin dashboards & internal toolsefficiency
🔹 Real-time systems
🔹 Multi-tenant architectures
🔹 Subscription & billing systems
Across all projects, I work as a Full Stack Developer responsible for system consistency from frontend to backend.
🎨 Frontend Engineering (Front End Developer focus)
As a Front End Developer, I build interfaces that remain stable under heavy usage and complex state changes, while aligning closely with backend systems built by Full Stack Developers.
🔹 React / Next.js applications with reusable architecture
🔹 State management systems
🔹 Tailwind & UI systems
🔹 Performance optimization
🔹 Real-time UI updates connected to Full Stack Developer event systems
The goal of every Front End Developer implementation is predictable performance and clean UI behavior.
⚙️ Backend Engineering (Full Stack Developer focus)
As a Full Stack Developer, I design backend systems with reliability, scalability, and observability in mind, ensuring smooth interaction with Front End Developer interfaces.
🔹 REST & GraphQL APIs
🔹 Microservices architectureindependently
🔹 Async workers
🔹 WebSockets and real-time systems
🔹 External API integrations
Each Full Stack Developer decision is made with long-term system evolution in mind.
🧩 Recent Experience (Full Stack Developer / Front End Developer)
✅ Multi-Tenant SaaS Platform (React + Node js + Python)
Lead Full Stack Developer for a platform serving 50K+ monthly users and 30+ organizations.
✔ 100K+ daily API calls • 25M+ records • Billing for $500K+/year
✅ Enterprise CRM (React + Node js)
Primary Full Stack Developer for a CRM used in 12 countries.
✔ Automated workflows cut manual work by 70%
✔ 200K+ processed events/day • 8 API integrations
✅ Scheduling Platform (React + Node js + Python)
As a Full Stack Developer, designed booking logic for 20K+ bookings/month.
✔ Real-time availability (<80ms)
✔ Payment flows processing $1M+ annually
✅ Data Platform (Python + React)
End-to-end ownership as a Full Stack Developer, delivered pipelines processing 3M+ records/day.
✔ 85% faster data prep • <1s dashboard latency
✅ Workflow Automation Engine (React + Node.js)
Built as a Full Stack Developer full automation replacing spreadsheets and manual operations.
✔ 40K+ tasks/day • 92% fewer errors • 70% less manual work
🤝 Why Clients Choose Me as a Full Stack Developer and Front End Developer
✔ True Full Stack Expertise
With 16+ years as a Full Stack Developer, I deliver complete systems, not fragments.
✔ Mastery of React, Node js, and Python
All three technologies are used deeply and consistently across my projects as a Full Stack Developer.
✔ GroupBWT Strength
🔹 Since 2009
🔹 100+ engineers
🔹 Dedicated Full Stack Developer division
🔹 Proven reliability and fast communication
✔ Business Impact
Clients report:
➡ 50% faster delivery
➡ 60% lower manual overhead
➡ 10× fewer bugs after release
All thanks to proper Full Stack Developer engineering principles.
💻 Tech Stack (Full Stack Developer / Front End Developer)
Languages: JavaScript, TypeScript, Python, PHP
Frontend: React, Next.js, Vue, Angular, Tailwind, Material UI
Backend: Node.js, NestJS, FastAPI, Flask, GraphQL, REST
Databases: PostgreSQL, MongoDB, MySQL, Redis
Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, CI/CD
Architectures: SaaS, microservices, event-driven systems
🚀 If you need a scalable web platform - let’s connect.
➡️ Invite me to your job, and I’ll help design and build a reliable production system.
Dmytro N.
has worked
.
Associated with
GroupBWT
$3M+
earned
$26/hr
100%
Job Success
Available now
Offers consultations
Start of list.
End of list.
I am a Senior Full Stack Developer with 12+ years of experience building SaaS platforms, custom web applications, business automation systems, and scalable APIs.
I help startups, agencies, and business owners transform ideas into reliable digital products using Laravel, React.js, Next.js, Node.js, Supabase, AWS, and modern cloud technologies.
My expertise includes:
• SaaS Product Development
• Custom Web Application Development
• Laravel & PHP Development
• React.js & Next.js Applications
• Node.js Development
• API Development & Third-Party Integrations
• AI Integration & Business Automation
• Database Architecture & Optimization
• AWS Deployment & Cloud Infrastructure
• Payment Gateway Integration
Over the years, I have successfully delivered solutions across multiple industries, including event management, legal-tech, education, finance, eCommerce, and business automation.
Why work with me?
✔ 12+ Years of Professional Experience
✔ 100% Job Success Score on Upwork
✔ Top Rated Freelancer
✔ Strong Communication & Reliable Delivery
✔ Scalable, Clean, and Maintainable Solutions
✔ Long-Term Client Relationships
Whether you need a new product built from scratch, an existing application improved, or technical guidance on architecture and scalability, I focus on delivering practical solutions that create measurable business value.
I believe in clear communication, reliable delivery, and building long-term partnerships with my clients.
Let's discuss your project and find the best solution for your business.
Pankaj K.
has worked
.
Associated with
Web Infinite Solutions Pvt Ltd
$20/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
🏆 TOP RATED 🏆 10+ years of experience 🏆 100% Success Rate 🏆 High Quality work ☑️ 5500+ Upwork Hours ☑️ Reasonable Cost
⭐Top-Rated Full-Stack Developer with 10+ years of experience building custom web applications and APIs that are fast, secure, and scalable.
▶ What I Can Do for You:
✔ Custom Web Applications – Scalable and high-performance solutions using Laravel, Symfony, and CodeIgniter
✔ API Development & Integration – Secure RESTful APIs and third-party integrations (Twilio, Google APIs, AWS)
✔ Frontend & UI Development – Dynamic and responsive interfaces with Vue.js & JavaScript
✔ Database Optimization – Efficient data handling with MySQL, MongoDB, PostgreSQL
✔ Authentication & Security – Secure login systems with OAuth, Firebase Auth, JWT, role-based access control (RBAC)
✔ Server & Cloud Management – Deployment and hosting on AWS, Firebase, cPanel
▶ Why Work With Me?
✔ Expert in PHP & JavaScript Frameworks – Laravel, Symfony, CodeIgniter, Vue.js
✔ Scalable & Maintainable Code – Clean, efficient, and optimized for future growth
✔ Reliable & Communicative – Fast responses, clear updates, and on-time delivery
💬 Let’s discuss your project! Message me to get started.
Gagan D.
has worked
.
Associated with
Technovisers
$40K+
earned
$30/hr
94%
Job Success
$200K+ earned
Available now
Start of list.
End of list.
Looking for an expert full-stack developer with a thorough understanding of AI-powered platforms?
I specialize in React, Node.js, TypeScript, Next.js, PHP (Laravel) and Flutter to assist businesses in SaaS, E-Commerce and ERP systems in developing premium software solutions. I’ve partnered with 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀 𝗮𝗻𝗱 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗰𝗹𝗶𝗲𝗻𝘁𝘀, delivering solutions that meet diverse business needs. My in-depth knowledge of AI technologies, including GPTs, LLMs and AI-driven automation tools like Cursor AI for intelligent error detection and contextual code refactoring, ensures smooth and high-quality project execution.
With 𝗼𝘃𝗲𝗿 𝟭𝟱 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, I partner closely with clients to upgrade efficiency, optimize integrations and implement AI models for advanced automation. By proactively addressing potential risks, my approach helps you 𝘀𝗮𝘃𝗲 𝘁𝗶𝗺𝗲 𝗮𝗻𝗱 𝗺𝗼𝗻𝗲𝘆, keeping your project on track.
Core Expertise:
• 𝗔𝗹-𝗗𝗿𝗶𝘃𝗲𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Streamline workflows and reduce development overhead using GPT, LLMs, LangChain, and automation tools.
• 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Deliver secure, scalable web and mobile applications customized to your business objectives.
• 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: Build and integrate SaaS, E-commerce, and ERP systems that operate reliably and scale smoothly.
• 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Architect robust AWS cloud solutions and implement CI/CD, containerization, and automation to ensure speed and scalability.
• 𝗗𝗮𝘁𝗮 & 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: Optimize MySQL, PostgreSQL, MongoDB, DynamoDB, and Firebase for high performance, security, and smooth data management.
Committed to building lasting client partnerships, here’s what my clients say about working with me:
• “Sunny is a great asset, delivering quality results consistently.”
• “Outstanding full-stack skills with a deep understanding of AI.”
• “Highly recommended for his expertise and project management.”
• “A pleasure to work with, fantastic coding and great communication skills.”
• “Seamlessly incorporated AI into our workflow, we’d definitely hire him again.”
Skills:
• 𝗙𝗿𝗼𝗻𝘁-𝗘𝗻𝗱: React, Next.js, Redux, Typescript, Angular, Vue.js, HTML5, CSS3, Tailwind, Bootstrap, JavaScript, jQuery, Material UI
• 𝗕𝗮𝗰𝗸-𝗘𝗻𝗱: PHP (Laravel, CodeIgniter, CakePHP), Node.js (Express.js)
• 𝗔𝗜 & 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴: CursorAI, GPT, LLMs, Hugging Face, LangChain
• 𝗠𝗼𝗯𝗶𝗹𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: React Native, Flutter
• 𝗕𝘂𝗶𝗹𝗱 𝗧𝗼𝗼𝗹𝘀: Webpack, Babel
• 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MySQL, MongoDB, MSSQL Server, PostgreSQL, DynamoDB, Firebase
• 𝗖𝗹𝗼𝘂𝗱 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀: AWS (EC2, Lambda, S3, CloudFront, RDS, SES, SQS, SNS, CloudTrail, Elastic Cache, Elastic Search)
• 𝗗𝗲𝘃𝗢𝗽𝘀 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗲𝘀 𝗮𝗻𝗱 𝘁𝗼𝗼𝗹𝘀: CI/CD, Jenkins, GitHub Actions, Docker, Kubernetes
• 𝗩𝗲𝗿𝘀𝗶𝗼𝗻 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 𝗦𝘆𝘀𝘁𝗲𝗺𝘀: Github, GitLab, Git, Bitbucket, GitHub Issues, GitLab Issues
• 𝗧𝗵𝗶𝗿𝗱-𝗣𝗮𝗿𝘁𝘆 𝗔𝗣𝗜: Open AI API, Social Media API, Payment Gateway, Twilio, SendGrid, Mailchimp
• 𝗧𝗲𝘀𝘁-𝗗𝗿𝗶𝘃𝗲𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Jest, Mocha, Chai, Selenium, Cypress
I am dedicated to delivering excellent results while adhering to the highest standards of integrity and quality. Let’s partner to create robust and scalable solutions that deliver lasting business value!
Sunny K.
has worked
.
$25/hr
100%
Job Success
$600K+ earned
Available now
Offers consultations
Start of list.
End of list.
Hey! Invite me as your AI colleague and I will help you find where AI can save time, reduce cost, and create measurable ROI in your business.
🌟 Senior Full Stack and AI Engineer for SaaS, AI Agents, Automation
🚀 Scaled platforms to 1 Million+ users
💰 Supported $1 Million and $0.5 Million funded startups
💯 100% client satisfaction
🤝 90% recurring clients
🏆 12+ years of professional experience
⭐ 26,732 plus Upwork hours delivered
🔥 $600K+ plus earned through long term client work
✨ 81 plus five star projects completed
I use modern workflows and AI coding tools to move up to 5x faster while still reviewing architecture, security, data flow, and code quality manually. Speed matters, but reliability matters more.
Built MVPs for startups with $12 Million+ funding raised and products serving 1.5 Million+ users worldwide.
🔥 𝟳𝟱% 𝗛𝗥 𝗿𝗲𝗱𝘂𝗰𝗲𝗱 with AI Agent Development.
🔥 𝟯-𝟲𝘅 𝗥𝗢𝗜. 𝟴𝟬𝟬+ 𝗵𝗼𝘂𝗿𝘀 n8n Automation.
Over 12 years I've delivered $670K+ across Web Development, Web Application, and AI Agent Development engagements in FinTech, HealthTech, PropTech, and B2B SaaS.
My clients have collectively raised $12 Million+ in funding:
🔥 Tallyfy ($1.4M), MetaBeta (€500K)
🔥 Elevatus ($10.5M)
🔥 scaled to 1 Million+ active users.
I am a full stack developer and AI developer with 12 years of experience building production systems across FinTech, HealthTech, PropTech, and B2B SaaS. My clients have raised $12M+ in funding including Tallyfy ($1.4M), MetaBeta (€500K), and Elevatus ($10.5M), and scaled products to 1.5 Million+ active users worldwide. Over 12 years I have delivered $670K+ across web development, web application, and AI agent development engagements with 90% recurring clients and 100% satisfaction.
✅ 12+ years | $670K+ delivered | 1.5M+ users scaled | $12M+ client funding raised
✅ AI agent development: 75% HR reduction, 3-6x ROI, 800+ hours of n8n automation
✅ Full stack development: 40+ production systems across FinTech, HealthTech, PropTech, SaaS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Key results from recent engagements:
▸ Reduced a client's HR overhead by 75% using a Python and LangChain AI agent that replaced 3 full-time employees with a 24/7 autonomous sales system
▸ Built API integration pipelines unifying 12 platforms simultaneously and processing 500+ daily NLP queries
▸ n8n automation across 30 active marketing workflows drove a 40% increase in lead generation
▸ AI chatbot and AI app development solutions returning 3-6x ROI within the first 90 days
▸ PostgreSQL optimizations delivering 3x query performance improvements across high-traffic applications
▸ German tax-filing SaaS processing 36 Million+ declarations on Laravel and PostgreSQL
▸ HIPAA-compliant healthcare platform on Node.js, React, and TypeScript
▸ PropTech portal on Next.js, FastAPI, and PostgreSQL handling 100+ search parameters
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
𝗔𝗜 𝗔𝗴𝗲𝗻𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
AI agent development is my primary engineering focus. I design and build full agentic pipelines using Python, LangChain, and machine learning, from RAG-powered vector retrieval and knowledge graphs through to voice AI bots and autonomous multi-agent orchestration. Every AI agent system I deliver applies prompt engineering discipline and data science principles for domain accuracy. I treat AI development as a full-stack business transformation, not a feature addition.
I layer API integration, API development, and RESTful API surfaces over FastAPI, Django, and Node.js backends, then deliver them through React, Vue.js, and Next.js frontends. Every AI agent development system I architect applies data science and prompt engineering for domain accuracy.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
I build backend systems on PHP, Laravel, Django, FastAPI, Node.js, NestJS, ExpressJS, and Ruby on Rails. Frontend interfaces are built with React, Vue.js, Next.js, Angular, TypeScript, JavaScript, HTML5, CSS3, and Tailwind CSS. Databases are PostgreSQL, MySQL, and MongoDB. Deployments run on Docker and AWS. I have delivered 40+ production full stack systems across every major vertical.
API integration, API development, HTML5, and RESTful API connectivity are non-negotiable standards in every full stack project I lead.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
𝗪𝗲𝗯 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 & 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
I have built web application and web development systems across every major vertical. React and Next.js frontends pair with PHP, Laravel, and Node.js backends grounded on PostgreSQL, MySQL, and MongoDB. I bring CSS3, HTML5, Tailwind CSS, TypeScript, and automation engineering precision to every interface. Every system I deliver is production-grade, documented, and built to scale.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Rohan J.
has worked
.