👋Hello and welcome to the dev's area! I am a real full-stack geek who adores Ruby on Rails. Working mostly in RoR and JS, I found out that it provides an optimal balance between speed, functionality and maintenance. To ensure the highest quality standards, I tend to adhere to best coding practices. My main goals are high-quality work and compliance with deadlines. I'm always available and aim to communicate regularly to update you on the development progress and make sure I have a clear understanding of your vision and needs. My top skills: Backend: - Ruby, RoR - Nokogiri - RSpec, ActiveAdmin, Сarrierwave Frontend: -HTML, CSS, Bootstrap - JavaScript, jQuery Databases: - MySQL - PostgreSQL - MongoDB Also worked with: - AWS - Heroku Workflow: - GIT, SVN(bitbucket/github/gitlab) - Jira, Trello, Asana I've got a creative mind and passion for new and challenging opportunities that will add to my area of experience.

I am a Senior Rails & DevOps Engineer with 15+ years of experience specialized in stabilizing, scaling, and modernizing complex web applications. When product owners and startup founders face messy codebases, performance bottlenecks, or tricky integrations, I step in to fix the root causes—not just apply temporary patches. I work 100% independently. No outsourcing, no middle-men. You get direct senior-level expertise. Here are the specific problems I solve for my clients: API / System Integration • Need to connect external services seamlessly? I integrate complex REST/OAuth2 APIs and third-party systems including Stripe, Mailchimp, FlightStats, Shopify, Simpro, Open-Meteo, Alpha Vantage, Google/Outlook Calendars, and Sendy. API Development • Need a custom, high-performance API? I build clean, well-structured, and secure APIs from scratch, thoroughly tested using Postman and curl, tailored for mobile apps or frontend consumption. Custom Shopify App Development • Need a tailored solution for your Shopify store? I build robust, non-embedded Shopify apps using Ruby on Rails to automate complex workflows and sync critical store data in real-time, including: - Products & Inventory: Real-time stock sync and automated catalog updates. - Orders & Fulfillment: Streamlined order processing, tracking updates, and custom fulfillment workflows. - Customers & Metafields: Advanced customer data management and extended store capabilities using custom metafields. - Automated PDF Generation: On-the-fly generation of custom invoices, packing slips, receipts, and downloadable business documents based on real-time store events. Performance & Scaling (Sidekiq, Redis, Queries) • Background jobs failing? Memory leaks? I analyze production logs, queue behavior, and server configs to eliminate bottlenecks and slash your server costs. Legacy Rails Modernization (v3.x to 7.x) • Stuck on an old Rails version? I dockerize your setup, resolve dependency hell, and modernize your stack for local development and production. Infrastructure & Cloud Migrations (Heroku / DigitalOcean / AWS) • Full server provisioning, Nginx configuration, SSL setup, Docker containerization, and automated deployment pipelines (Kamal, CI/CD). Bulletproof Stripe Integrations • Implementation and debugging of complex payment flows: Subscriptions, Webhooks, Payment Intents, and custom invoice handling. Modern Frontend & Fullstack Capabilities • Need UI modernization alongside backend fixes? I build fast, responsive, and interactive interfaces using Tailwind CSS, Vue.js, and Hotwire/Turbo, keeping your stack clean and efficient. Search Optimization • Transitioning slow database queries into lightning-fast searches using Elasticsearch and smart caching strategies. Let’s get your system stabilized. Reach out and briefly share your current tech stack and the challenges you're facing—I’ll take a look and let you know how we can fix it. Best regards, Sugi

Ruby on Rails developer with 15+ years of experience (working with Rails since 2009), specializing in building reliable, scalable, and secure web applications. I’m a fast learner who quickly adapts to evolving project needs, and I thrive in environments that require creative problem-solving. I’ve successfully delivered projects ranging from MVPs for startups to large-scale systems for established businesses. My focus is always on writing clean, maintainable code, optimizing performance, and ensuring smooth user experiences. I communicate clearly, meet deadlines consistently, and stay fully committed to delivering results that drive measurable impact. If you’re looking for a developer who can take ownership, solve complex challenges, and contribute effectively from day one — let’s work together.

Hi, I am a full stack web app developer. I can manage both front end and back end of your app using advance technologies that includes : Ruby on Rails, PHP Laravel, ReactJs, HTML 5, CSS3,TailwindCss, Angular, JavaScript, Jquery, Bootstrap, ajax,MySQL, PostgreSQL, UI Ux, API integration, Payment Gateway Integration, API development, Heroku, Google Analytics and Amazon Web Service. Moreover, i have good experience working with LMS, ERP, CMS, E commerce, Social media projects and custom payment gateway systems. Feel free to contact any time :)

Senior Shopify app engineer specializing in embedded Shopify apps, backend infrastructure, API integrations, subscriptions, and scalable ecommerce systems. I help Shopify brands and SaaS companies build reliable production grade applications that solve real operational and business problems from custom app development and checkout extensions to backend automation, subscriptions, payments, and third-party integrations. Over the years, I have worked extensively with: * Custom Shopify App Development * Shopify Plus ecosystems * Shopify Admin API (GraphQL & REST) * Embedded Apps & OAuth flows * Webhooks and event-driven systems * Checkout extensions and cart logic * Subscription systems (Recharge and custom builds) * Payment and billing integrations * ERP, inventory, and middleware integrations * Ruby on Rails backend systems * Scalable API architecture and automation workflows My focus is not just building features, but designing systems that are maintainable, scalable, and reliable in production. I work closely with clients to understand business requirements first, then architect solutions that improve operational efficiency, reduce manual workflows, and support long-term growth. What sets me apart: * Strong backend and systems-thinking approach * Clean, scalable architecture * Production reliability and performance focus * Experience handling complex integrations and business workflows * Clear communication and long-term technical ownership mindset Whether you need to build a Shopify app from scratch, optimize an existing system, integrate external services, or scale your backend infrastructure, I can help deliver solutions that are stable, maintainable, and aligned with your business goals.

I help startups and growing businesses build and scale products and SaaS using Ruby on Rails. Over the past 4+ years, I’ve built and maintained production-grade applications across healthcare, e-commerce, POS, and SaaS platforms. My focus is backend architecture, Stripe billing systems, and API-driven applications that are built to scale. If you need a Rails developer who understands real business logic, subscriptions, payments, multi-tenant systems, background jobs, and performance optimization. I can help you ship fast and scale confidently. * Key Skills & Technologies: - Ruby on Rails | Hotwire | Turbo | Stimulus - PostgreSQL | Redis | Sidekiq | Active Record Optimizations - API Development & Integration (Stripe, Netsuite, TaxCloud, Twilio) - Front-end (Vue.js, React, Tailwind CSS, Bootstrap) - Authentication (Devise, JWT, OAuth, Omniauth) - Background Jobs & Performance Optimization - Cloud Deployment (GCP, AWS, DigitalOcean, Docker) - Agile Development | Git | CI/CD Pipelines * Why Work With Me? - Deep expertise in Rails with scalable architecture - Experienced in multi-tenant and billing systems (Stripe Connect) - Strong problem-solving mindset with a focus on performance - Effective communication & on-time project delivery Let's bring your idea to life with a powerful Ruby on Rails solution! Open to new projects, let’s discuss how I can help!

As a dedicated Fullstack Developer specializing in Ruby on Rails and React (or Hotwire), I bring a wealth of experience and a commitment to excellence in every project I undertake. With a strong foundation in Ruby on Rails, JavaScript, Hotwire, and React, I have successfully contributed to numerous projects, consistently delivering high-quality solutions that align with clients' business objectives. Key Skills: - Proficient in Ruby on Rails, JavaScript, and React. - Experienced with Hotwire, Git, Docker, and RSpec. - Skilled in optimizing codebase for performance and security. Client Focus: I prioritize understanding my clients' needs and exceeding their expectations. Effective communication and close collaboration are integral to my development process, ensuring client satisfaction at every stage. Problem-Solving Approach: I thrive on solving complex challenges by leveraging analytical thinking and innovative solutions. Whether it's debugging live issues or optimizing code for performance, I approach each task with a problem-solving mindset. Quality Assurance: Dedicated to writing clean, maintainable code and conducting rigorous testing, I ensure the reliability and performance of all applications I develop. My commitment to quality set me apart in delivering robust solutions. If you're seeking a Fullstack Developer who combines technical expertise with a passion for innovation and excellence, look no further. I am ready to collaborate with you to bring your vision to life and make a positive impact through technology. #FullStackDeveloper #RubyOnRailsExpert #JavaScriptDeveloper #ReactSpecialist #HotwireDeveloper #SoftwareEngineering #CodeOptimization #ClientSatisfaction #QualityCode #ProjectCollaboration #PerformanceOptimization

Greetings & Thanks for checking my profile. I’m Ahsan, a seasoned full stack developer specialized in Ruby on Rails, with 4+ years of hands-on experience building scalable, high-performance web applications. I've successfully led and contributed to multiple complex projects in healthcare, real estate, and enterprise domains. Proficient with Turbo Frames, Stimulus, and a variety of databases including PostgreSQL, MySQL, MS SQL, and Oracle. I write clean, test-covered code and deploy robust apps on Heroku and AWS. Let's bring your vision to life with reliable, efficient code. looking forward to discussing your project together. 🚀

Have a product idea but not sure how to bring it to life? Need help building a SaaS platform, improving an existing app, or maintaining a legacy system? You're in the right place. I’m a senior software engineer with over 8 years of experience turning ideas into scalable, production-ready applications. I’ve worked with startups, growing businesses, and technical teams to design and deliver web and SaaS products that serve real users. How can I help you - Building MVPs, SaaS and full-scale applications from scratch - Upgrading, refactoring, and maintaining legacy codebases - Leading product development and collaborating with cross-functional teams - Performing technical audits and improving performance, code quality, and reliability Over the years, I’ve successfully delivered more than 25 projects across various industries. The products I’ve worked on have supported hundreds of users, evolved through multiple stages of growth, and helped businesses achieve measurable outcomes. 🛠️ 𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 • Ruby • Ruby on Rails • JavaScript • TypeScript • React.js • Vue.js • Next.js 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 • AI Integration • AI App Development • AI Agent Development • Predictive Analytics 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 • PostgreSQL • MySQL 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐀𝐬𝐬𝐮𝐫𝐚𝐧𝐜𝐞 • RSpec • Factory • Minitest • Selenium • Capybara 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝 • Docker • Kubernetes • CI/CD • AWS • Heroku • GCP 𝐔𝐈 & 𝐒𝐭𝐲𝐥𝐢𝐧𝐠 • Tailwind CSS • Bootstrap Ruby on Rails, Full Stack Development, AI Integration, React.js, Web Development, TypeScript, JavaScript, API Development, PostgreSQL, Tailwind CSS If you’re looking for a reliable developer who can build, scale, or support your software — let’s talk. I’d love to learn more about your project and help you move it forward.

🟢 Immediately Available ! 🏆 I'm a Top-Rated full-stack developer with 10 years of experience, proficient in a diverse array of technologies, frameworks and AI Workflow automation. now I specialize in *AI-powered automation, **LLM agents, and **voice-based AI systems* using tools like OpenAI, LangChain, Ollama, Deepgram, MCP Server and Vapi. I’ve delivered 4000+ Upwork hours with 100% client satisfaction helping startups, SaaS companies, and enterprise teams turn their product ideas into fast, stable, and scalable apps. 🔧 What I Can Build for You 🌟 ⁠Voice Interview or Sales Agents (Vapi + Deepgram + GPT) 🌟 Resume Screener / Job Match Bot using GPT-4 🌟 Research Assistant Agents (LangChain, RAG, FAISS) 🌟 ⁠Full-stack Web Apps using Next.js + Ruby on Rails 🌟 AI automation flows with OpenAI + Node.js + FastAPI 🛠️ Tech Stack Highlights 🌟 AI/LLM Tools:* OpenAI GPT-4, LangChain, Whisper, Deepgram, ElevenLabs, CrewAI, Ollama 🌟 Frontend:* React, Next.js, Vue, TypeScript, Redux, Tailwind 🌟 Backend:* Python, Ruby on Rails, Node.js, FastAPI, MongoDB, Postgres 🌟 DevOps:* Docker, AWS, Heroku, Vercel, CI/CD pipelines 🎁 Bonus Skills 🌟 ⁠⁠Blockchain / NFT smart contracts (Solidity) 🌟 ⁠Web scraping, vector search (FAISS), PDF tools 🌟 TDD/BDD, Stripe, Twilio, Airtable, Notion API 💡 Why Choose Me? ✅ Proven Track Record: Delivered 25+ Ruby on Rails applications. ✅ End-to-End Solutions: I handle every aspect of your project from design to deployment. ✅ Scalable & Secure: Build applications that grow with your business and protect your data. ✅ Client-Centric Approach: I prioritize clear communication, timely delivery, and exceeding expectations. ✅ Continuous Learning: Always updating my skills to stay ahead in the ever-evolving tech landscape. I can work solo or with your team, and I’m open to fixed-price or hourly work. My goal is simple: *deliver reliable, production-ready systems* with clean code and a great UX — fast. Let’s build your next AI agent or full-stack platform. Ready to get started?