Hi, I’m a Full Stack AI Engineer with strong experience in building AI agents, RAG systems, SaaS platforms, admin dashboards, API integrations, automation workflows, and scalable full-stack web applications. I work across React, Next.js, Node.js, NestJS, Python, Ruby on Rails, MongoDB, PostgreSQL, LangChain, n8n, MCP, and LLM-based systems. My focus is not only writing code, but building production-ready systems that solve real business problems. Recently, I completed AI and full-stack projects including: * AI Developer for Generative & Agentic AI Projects * Built AI workflows using LangChain, RAG, MCP, and agentic AI patterns. The client rated the work 5.0 and mentioned solid AI skills, on-time delivery, and quality code. MERN Admin Dashboard: * Developed a full-stack admin dashboard using React, Node.js, and MongoDB. The work involved clean frontend implementation, backend APIs, dashboard logic, and strong communication throughout the project. Complex Ruby / Full Stack Web App: * Worked for more than a year on a complex legacy web application involving Ruby, JavaScript, CSS, dashboards, recordings, media features, frontend redesign, and feature improvements. Currently, I am also working on: * Multi-agent Genkit framework for agentic backbone setup * Backend development for crypto payments and API integrations * Senior Ruby on Rails development with 3,000+ hours logged * MVP booking platform with functional APIs and product workflows I can help you with: * AI agent development * RAG and LLM integration * LangChain and MCP-based workflows * OpenAI and Claude API integration * n8n automation workflows * SaaS platform development * MVP development * React and Next.js frontend development * Node.js, NestJS, and Express backend development * Ruby on Rails development * API architecture and third-party integrations * Admin dashboards and internal tools * FinTech and payment-related backend systems * DevOps support and deployment workflows What makes me different is that I understand both product delivery and technical execution. I can take a loose idea, convert it into a working plan, build the frontend and backend, integrate AI or automation where needed, and ship clean, maintainable code. If you need someone who can build AI-powered SaaS products, automate business workflows, improve an existing codebase, or develop a full-stack platform from scratch, I can help you move faster with the right technical direction. Keywords: Senior FullStack AI Engineer | MERN developer | AI Automation | AI solutions | Fullstack developer | Node js | React js | MongoDB | Express js | Machine learning | AI chatbots | Natural language processing | Chatbot integration | Data analytics | AI-powered applications | REST APIs | GraphQL | Real-time applications | Socket IO | WebSockets | Cloud deployment | AWS | ECharts | Data visualization | SaaS | AI-based web apps | AI data insights | TypeScript | MongoDB integration | Next js

✅ 150+ Successful delivered Jobs ✅ 2,500+ Hours Professional Summary I am an experienced web developer with a robust background in Ruby on Rails, Shopify, HTML5, CSS3 (including SASS), and JavaScript (including AngularJS). With advanced skills in CMS development and customization, responsive design, and UI/UX, I excel at creating dynamic, user-centric digital solutions. My expertise extends to API integration (using Ruby on Rails and PHP), Shopify app development, and custom Shopify store design. I hold a Postgraduate degree in Computer Science from Bond University, Australia, and have a proven track record of managing global clientele, having traveled extensively across the USA, Canada, Australia, and Europe for business. My experience spans various domains including music, SaaS, real estate, education, business, law, healthcare, e-commerce, and more. Additionally, I have hands-on experience with cryptocurrency exchanges, including peatio, rubykube, and openproject. Core Competencies Programming Languages & Frameworks: Ruby, Ruby on Rails, Shopify, Sharetribe, Spree Commerce, Rack Databases: SQL, PostgreSQL, MySQL, MongoDB, SQLite, Redis Testing & Tools: TDD, Rspec, Guard, Watir, Capybara, FactoryBot, Selenium, Poltergeist Front-End Technologies: HTML5/HAML, CSS3/SCSS, jQuery, AJAX, Slim, Twitter Bootstrap, CoffeeScript JavaScript Libraries & Frameworks: React.js, Angular.js, ES6, JSX, TypeScript Version Control: Git (Github, Bitbucket, GitLab) Hosting & Cloud Services: Linux (UNIX), Heroku, Digital Ocean, AWS, Google Cloud, BlueHost, Joyent Other Skills: Web Scraping, Crawling, Data Mining Professional Expertise Project Management: Proficient in Agile Methodology, delivering milestones effectively with regular SCRUM meetings. Web Development: Skilled in creating cross-browser compliant HTML5, CSS, AJAX, and JavaScript solutions. Communication: Strong communication skills with a positive attitude, adept at explaining technical concepts to clients. Development: Experience in both front-end and back-end development, ensuring seamless functionality across websites. Project Management Tools: Asana, Jira, Basecamp, Trello I look forward to exploring new opportunities and contributing to innovative projects. Please feel free to contact me for any collaboration or inquiries. Thank you, Ajay Dhande

Hey! I'm Chi 👋 - a Technical Lead & Full-Stack Developer with 12+ years building with WordPress, Laravel, and modern web architecture. I help startups and agencies get things done — and done right. Clean code, on time, on budget. Plus, I use AI & automation to help you do more with less (think: saving hours/days of manual work every week). ✅ What I Can Help You With 🤖 AI & Automation – Tired of doing the same tasks over and over? I build OpenClaw workflows, AI chatbots, and custom automations so your business runs smoother while you focus on what matters. 🎨 Custom WordPress Development – From custom themes & plugins to WooCommerce stores, Gutenberg blocks, Elementor builds, UX Builder customization, and headless setups — built fast, optimized for speed, and easy to manage later. 🔧 Technical Leadership – Need someone to architect your system, set up dev workflows, or mentor your team? I've led teams of 5–15 devs and shipped dozens of projects. 🛒 eCommerce That Converts – WooCommerce stores optimized for speed, conversions, and growth. No bloat, no slow pages — just results. ⚡ DevOps & Performance – AWS, Docker, Cloudflare, CI/CD, caching — I make your site fast and your server happy. ⚙️ Tech Stack Backend: PHP, Laravel, Ruby on Rails Frontend: Vue.js, React, Next.js, Tailwind CSS WordPress: Gutenberg, Elementor, UX Builder, Custom Themes, Custom Plugins, WooCommerce, Headless WordPress Automation: OpenClaw, n8n, Make, AI Chatbots, Custom APIs DevOps: AWS, Linux, Docker, Cloudflare Payments: PayPal, Stripe, Klarna, Nexi, Tyl by NatWest 🐙 chidang on GitHub — happy to share code samples anytime.

Senior Ruby on Rails developer with 5+ years of experience building production SaaS applications and backend systems. I help businesses maintain, improve, and scale existing Ruby on Rails applications used by real users. I specialize in Ruby on Rails, Hotwire (Turbo and Stimulus), and modern JavaScript frameworks like VueJS, ReactJS, and TypeScript. I’ve successfully delivered enterprise-level solutions for industries such as healthcare, education, finance, e-commerce, and social services. Most of my work involves stepping into ongoing Ruby on Rails projects where stability and performance matter. Clients usually bring me in to fix backend issues, clean up existing code, add new features, and keep the application running smoothly in production. I work primarily on SaaS platforms, internal tools, and API-driven applications. This includes backend development, database optimization, third-party API integrations, background job processing, and production support. I focus on writing clear, maintainable code and shipping changes safely. What I typically help with: - Ruby on Rails application development and maintenance - SaaS platforms and subscription-based systems - Backend development and business logic - REST API development and third-party API integrations - PostgreSQL performance tuning and query optimization - Background jobs using Sidekiq - Stripe and payment gateway integrations - AWS deployment and production troubleshooting - Bug fixing and performance improvements I’ve worked on multi-channel shipping systems, AI-assisted internal tools, and long-running SaaS products that handle real business operations. These are applications used daily, not short-term demo projects. Clients usually hire me when they need a senior Rails developer who can take ownership of an existing application and work long-term.

Hello, and thanks for visiting my profile! I’m a Senior Full Stack Developer with over 6 years of experience, specializing in Backend Development. My core expertise includes Ruby on Rails (RoR), React, Bootstrap, and cloud technologies like AWS, GCP, and Azure. I’m also skilled in Python, with hands-on experience using frameworks like Django, Flask, FastAPIs and AI tools such as OpenAI APIs. If you're seeking an Independent Developer capable of transforming your concepts into top-notch applications, I'm at your service. Whether it's building new applications or enhancing your current ones, I'm here to assist. Thanks for your time—I look forward to working together!

I am a full-stack developer and AI automation architect with extensive experience building scalable web applications, SaaS platforms, AI-powered automation systems, and eCommerce solutions. My focus is on designing intelligent systems that automate operations, connect business tools, and provide actionable insights from business data. I work with startups, agencies, and growing companies to build systems that reduce manual work, improve efficiency, and scale reliably. I have worked across eCommerce, healthcare platforms, enterprise software, and automation systems, delivering solutions that combine strong backend architecture with modern front-end applications and AI integrations. AI & Automation Expertise • AI-powered automation systems and operational intelligence tools • Agent-based workflows and AI copilots for business operations • LLM integrations for email analysis, CRM automation, and task detection • AI-driven code review and automated engineering workflows • Workflow orchestration using APIs and event-driven systems • Building AI assistants for internal tools, Slack, CRM, and support systems SaaS & Web Application Development • Scalable SaaS platforms using Ruby on Rails, React, Next.js, and Node.js • Multi-tenant application architecture and REST / GraphQL APIs • Custom dashboards and analytics systems for business intelligence • Cloud deployment and DevOps management (AWS, DigitalOcean, Nginx, Puma, Sidekiq) Shopify & eCommerce Development • Shopify app development (Public, Private, Embedded apps using Remix) • Custom Shopify store enhancements using Liquid, metafields, and checkout extensions • Shopify API integrations (REST, GraphQL, Webhooks, payment gateways) • Salesforce Commerce Cloud (SFCC) customization and integrations • WooCommerce and Magento development and integrations CRM, Analytics & Integrations • CRM integrations with Salesforce, HubSpot, Zoho, and custom CRM systems • Google Analytics (GA4) and Google Tag Manager implementations • Conversion tracking and advanced event-based analytics • Custom reporting dashboards and real-time data integrations Healthcare & Business Automation Systems • Development of Hospital Management Systems (HMS) with appointment scheduling, inventory, and patient management • WhatsApp Business API integrations for automated messaging and reminders • Internal business tools for employee management, payroll automation, and operations Key Projects • Built AI-powered Slack assistants for team communication and operational tracking • Developed Shopify embedded apps with advanced order workflows and integrations • Implemented AI-driven code review systems integrated with Jira • Designed SaaS platforms with optimized performance, caching, and scalable architecture • Built automation systems that integrate CRM, communication tools, and analytics I focus on delivering clean architecture, scalable systems, and automation-driven solutions that help businesses grow and operate more efficiently. If you're looking for someone who can design complex systems, integrate AI into real workflows, and build reliable software platforms, I’d be happy to help.

I'm a Full Stack Engineer with over eight years of experience in architecting, scaling, and maintaining complex web applications across diverse industries. I stand out for delivering high-performance and fault-tolerant backend microservices that guarantee integrity and rapid growth for SaaS and enterprise platforms. I'm thrilled to lead projects from their initial architecture to secure, production deployments. What I Offer: • Microservices & API Architecture: Developing and implementing scalable backend microservices using Node.js, NestJS, and Ruby on Rails; developing strong REST and GraphQL APIs. • Performance Engineering: Implemented query optimization, caching mechanisms with Redis ElasticCache, and horizontal scaling strategies while ensuring the responsiveness of the system. • Complex Integrations: Seamlessly integrating important third-party services, such as Stripe, Salesforce, Zuora, Hubspot, Twilio, and Elasticsearch, that drive core business workflows. • DevOps & Cloud: Managed cloud infrastructure on AWS (EC2, RDS, S3) and Heroku. Responsible for overall system architecture and scalability. • Technical leadership, including mentoring of junior team members, code reviews, and technical decision making. Key Architectural Wins (Quantified Impact): • Performance: Improved average API response times by query optimization and implementing different levels of caching on multiple projects. • Architecture: Conceptualized and implemented a scalable, maintainable architecture for a Rails project; improved code organization, reusability, and lowered costs. • Deployment: Implemented applications with the use of serverless EC2, S3 buckets, Redis ElasticCache, and RDS databases for reliable data management and storage. Integrity: Custom authentication implementors and classes for authorization were implemented to devise better error handling and thus secure access to resources.

I’m a Senior Full-Stack Engineer with 9+ years of experience building and scaling enterprise-grade web applications, SaaS platforms, and backend systems using Ruby on Rails, Python, Node.js, and React. I work with companies looking for a long-term engineering partner who can take ownership of systems, improve architecture, and deliver reliable, scalable solutions. Alongside strong full-stack expertise, I help teams integrate AI and LLM-driven features to automate workflows and improve product efficiency. Core Expertise: Enterprise SaaS architecture & scalable backend systems Ruby on Rails & Node.js application development API design & third-party integrations (Stripe, Google APIs, DocuSign, etc.) Performance optimization, clean architecture, and maintainable code AI & LLM integrations (OpenAI/GPT, automation workflows, intelligent features) Technology Stack: Backend: Python, Ruby on Rails, Node.js, PostgreSQL, MySQL, Redis Frontend: React.js, React Native, JavaScript, Tailwind CSS Infrastructure: AWS, GCP, Heroku, DigitalOcean AI: LLM integrations, workflow automation, prompt engineering How I work: Strong ownership and long-term thinking Clear communication with stakeholders and teams Focus on stability, scalability, and business outcomes Clean, well-documented code designed for future growth If you’re looking for a senior engineer who can contribute beyond coding, architecture, system thinking, and long-term product success. let’s connect.

I help startups and businesses build and scale marketplace platforms, SaaS products, and AI-powered applications using Ruby on Rails, React, and Sharetribe. With 7+ years of experience, I specialize in developing custom marketplaces (B2C, B2B, C2C) and extending Sharetribe to meet unique business needs. I focus on helping clients launch faster, scale reliably, and avoid costly rebuilds. What I can help you with: ==================== Build and customize Sharetribe marketplace platforms Develop scalable SaaS applications using Ruby on Rails and React Create custom features beyond Sharetribe limitations Payment integrations with Stripe, PayPal, and Braintree API integrations and third-party services AI and LLM integrations including LangChain and RAG workflows Performance optimization and scaling of existing applications Marketplace and Sharetribe expertise: =============================== Customizing Sharetribe Go and Sharetribe Flex Building multi-vendor marketplaces Implementing custom workflows, commissions, and booking systems Extending Sharetribe using custom backend services Migrating from Sharetribe to fully custom platforms when needed Real impact I deliver: ================= Built and scaled marketplace platforms with complex user flows and payments Helped clients launch MVPs quickly using Sharetribe Reduced development time by leveraging marketplace frameworks Delivered scalable systems that support long-term growth Tech stack: ========== Backend: Ruby on Rails, Python (FastAPI, Django) Frontend: React.js, Angular, JavaScript Databases: PostgreSQL, MySQL, MongoDB Cloud: AWS, Heroku, DigitalOcean Background jobs and caching: Redis, Sidekiq Marketplace: Sharetribe (Go and Flex) AI and LLM: LangChain, LlamaIndex, Llama 2, Mixtral Domain experience: ================ Marketplace, SaaS, E-commerce, Health, Fitness, EdTech, ERP Why clients work with me: ===================== Strong experience in marketplace architecture Ability to extend Sharetribe beyond standard limitations Focus on scalable and maintainable solutions Clear communication and fast response time If you are planning to build or scale a marketplace, I can help you choose the right approach and execute it efficiently.

I have 9+ years of experience with Web Development using RubyonRails, React.js, Node.js, Angular, RESTful, Python/Django, CMS, Other JavaScript framework, Amazon Web Services, jQuery, AJAX, CSS, Bootstrap, Vue and have In-depth knowledge of CSS3, HTML5 and Ruby based frameworks. Specially Ruby on Rails. I having ability in testing frameworks such as ruby cucumber, Rspec. I've worked with various third party services such as AWS Server Hosting with load balancer, RDS, EC2 Instance, S3 bucket, Security group, Security Key, SES mail sending service, SNS push notification service, AWS cloudfront,Heroku server,DigitalOcean droplet, EngineYard etc. Domain expertise : Dashboard Food delivery SPA (Single Page App) Dating I've also worked with various payment gatways such as Stripe, Braintree, Chargify, Checkout Express. I use latest iterative approach (agile software development methodologies) to deliver sophisticated, reliable, cutting-edge for top quality solution. So, you will be able to see progress of development activity through "DAILY WORK UPDATE REPORT". What are major services I am providing? Rails Installation and Configurations. Gems Installation Web development in Rails, NodeJS using Agile, Scrum methodology. Custom Ruby scripts and development UI/UX design and development using HTML, CSS, Bootstrap, JavaScript, Jquery and Angular JS Deployment on Heroku, S3 Amazon or any other environment. I have done a major work with Google Maps. Google Location APIs. Stripe, Payp al checkout APIs. I have tried more than 100 of gems. I have worked in spree commerce, management systems, education systems, Api developments, Marketplace, Classified ad systems and social media projects. Additionally I am working on SEO and Digital marketing all well. On top of these, I am very fluent in English communication (Oral & Written) so you will not face any communication related issues when working with me.