As a seasoned Full Stack Developer based in the United Kingdom, I possess a decade of comprehensive experience in .NET development, along with proficiency in both front-end and back-end technologies. My expertise encompasses the entire .NET ecosystem, allowing me to deliver cutting-edge, scalable, and efficient digital solutions tailored to meet the unique needs of businesses. Key Services Offered: Custom .NET Application Development: Design and develop bespoke applications using the .NET framework, ensuring alignment with specific business requirements. Write scalable, maintainable, and efficient code that adheres to industry best practices. Advanced .NET Web Development: Create responsive and interactive web applications leveraging .NET, HTML, CSS, Bootstrap, and JavaScript. Focus on delivering seamless user experiences and optimized performance across all devices. Cross-Platform Mobile App Development: Develop high-performance mobile applications for iOS and Android using .NET and Xamarin, ensuring a consistent user experience across platforms. Utilize a single codebase to streamline development and enhance maintainability. Comprehensive .NET Integration Services: Seamlessly integrate .NET applications with third-party services, APIs, and enterprise systems. Enhance functionality and streamline workflows to improve overall efficiency. Legacy Application Migration: Expertly assist in migrating legacy applications to the latest .NET framework versions, ensuring minimal downtime and data integrity. Implement best practices to facilitate a smooth transition. Ongoing .NET Maintenance and Support: Provide continuous support to ensure optimal performance of .NET applications. Offer troubleshooting, updates, and enhancements tailored to evolving business needs. Rigorous .NET Testing and Quality Assurance: Conduct thorough testing to ensure that .NET applications meet rigorous business requirements. Identify and resolve issues proactively to prevent user impact. Strategic .NET Consulting: Offer expert advice on architecture, design, and implementation strategies for .NET projects. Assist clients in making informed decisions to maximize their investment in .NET technology. Cloud Deployment Expertise: Deploy .NET applications on leading cloud platforms such as Azure, AWS, or GCP. Ensure secure, scalable, and cost-effective cloud solutions that align with business objectives. Robust .NET Security Solutions: Implement comprehensive security strategies, including vulnerability assessments and penetration testing. Safeguard .NET applications against potential threats and vulnerabilities. Innovative WordPress Design and Development: Create visually stunning and user-friendly WordPress websites that are easy to manage. Employ modern design practices to enhance user engagement and conversion rates. Effective SEO Optimization: Develop and implement robust SEO strategies to elevate website visibility and search engine rankings. Conduct in-depth keyword research and technical audits to drive organic traffic. Why Choose Me? Decade of Expertise: With ten years of extensive experience in .NET development, I possess in-depth knowledge of the framework and its applications. Commitment to Excellence: I am dedicated to delivering high-quality solutions that meet and exceed client expectations. Client-Centric Focus: I prioritize understanding your business goals to provide tailored solutions that drive success. Long-Term Partnership: I offer ongoing support and consultation even after project completion to ensure sustained success.

I build production-grade AI agent systems for businesses that need AI that actually works in production not just demos. Over the last 15 years, I’ve scaled SaaS platforms across travel-tech, retail data, and regulated clinical systems, most recently as CTO of a UK travel-tech company operating with 12+ global airlines across multiple countries. Today, I help founders and businesses design, deploy, and harden AI workflows that solve operational problems and create measurable ROI. I work best with: • Founders validating AI ideas before major investment • Teams that built fast AI MVPs and now need scalable architecture • Established businesses looking to unlock value from operational data My approach is strategy-first. Before building anything, I focus on identifying the real problem, where AI creates leverage, what should not be built, and the smallest viable production path. Experience includes: • AI procurement and tender automation platforms for EU advisory firms • Enterprise retail data systems supporting 20M+ shoppers • Regulated clinical platforms used by Pfizer, Johnson & Johnson, and the British Renal Society Tech stack: OpenAI, Anthropic, LangGraph, MCP, Python, TypeScript, Node.js, Next.js, Postgres, AWS, Azure, GCP, RAG, vector retrieval, and observability tooling. If you're building AI products beyond the prototype stage and need a partner who thinks strategically as well as technically, send me a message with your idea or challenge, I’ll help you identify the smartest next step. — Haroon Agent Foundry Labs (UK)

I'm a passionate full-stack developer having 10+ years of experience with PHP, Laravel, JavaScript, jQuery, .NET, C#, Dot Net Core, Python, Django, Angular, Blazor, React, HTML | CSS Ajax Bootstrap XML. Also have worked with CMSs including WordPress, Shopify, OpenCart, and Prestashop, etc. Focus on: 🌐 Web Apps - PWAs - SaaS. 🧑‍💻Automation and Custom Software of any kind. 🖥 Websites of any type, eCommerce & Landing Pages – WordPress, Shopify, Wix, Squarespace, Webflow. 🔥 UX/UI Wireframes, Interactive Prototypes, User Experience Mapping and User Interface Design. 🌟 TECHNOLOGY STACKS 🌟 🔹Open-Source Technologies: Python, ASP.NET, C#, Blazor, MEAN / MERN, WPF/WCF 🔹Frameworks: Entity, MVC, Laravel, CodeIgniter, Django Framework, Flask, ExpressJS. 🔹 Backend: ASP.Net, JavaScript, Python, Node Js, PHP, C#, .NET Core 🔹 Python Libraries: TensorFlow, Pandas, Numpy, SciPy, Scikit-Learn 🔹 Frontend: Bootstrap, AngularJS, ReactJS, Vue.JS, JavaScript / Jquery HTML / HTML5, 🔹 Database: MySQL, MongoDB, MariaDB, PostgreSQL, Microsoft SQL, Neo4J 🔹 CMS & eCommerce: WordPress, Shopify, WebFlow, Wix 🔹UI/UX Technologies: AdobeXD, Figma, Moqups, Adobe Photoshop, Adobe Illustrator, Adobe InDesign 🔸 Social Integration - Facebook, Twitter, Youtube, Instagram, Snapchat, Tinder 🔸 Chat - XMPP, Socket, Firebase, GetStream, Twilio 🔸 Version Control Tools - Github, Bitbucket, Gitlab 🔸 Map, Apple Map kit, Geolocation, GPS, Location Tracking 🔸 Audio / Video Live Streaming 🔸 Payment Gateway: Paypal, Braintree, Stripe, Credit Card, etc. 🔸 Advertisement, Push Notifications, GCM, Google Analytics 🌟 INDUSTRY EXPERIENCE 🌟 Agriculture, Retail, E-Commerce - B2B & B2C, Banking Finance and Insurance, Medical and Healthcare, Automotive, E-learning and Educational, Dating, Recruitment & Jobs, NGO and Government, Media and Entertainment, Logistics and Transportation, Travel and Hospitality, Gaming & Sports, Real Estate, Social Networking & Manufacturing. 💬 𝗙𝗥𝗘𝗘 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗔𝗧𝗜𝗢𝗡: My consultation is 𝗳𝗿𝗲𝗲. Let's schedule an introductory call and discover the possibilities of working together. And even if we don't work together, you will get some tips/ideas that can be helpful to your project. Just click on the '𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯' button and experience yourself.

Senior Software Engineer with 15+ years of experience building and scaling revenue-critical platforms across fintech, payments, online banking, SaaS, healthcare, and enterprise systems. I help teams design, ship, and stabilize systems that must work at scale, under pressure, and in regulated environments. I operate comfortably across the stack, with deep hands-on expertise in Java (Spring Boot, Microservices), Golang, PHP/Laravel, and modern JavaScript frameworks (React, Angular, Vue). My work focuses on system reliability, performance, security, and long-term maintainability, not just feature delivery. What I do best • Architect and build scalable backend systems & microservices • Design clean, versioned APIs for internal and third-party integrations • Deliver high-throughput financial and transactional systems • Improve performance, fault-tolerance, and observability • Implement CI/CD pipelines that reduce risk and speed up delivery • Support systems in production with clear ownership and structured debugging Selected impact • Lead engineer on an Agency Banking platform, enabling offline-first transactions for field agents • Delivered 7 mission-critical online banking modules (Fixed Deposits, Loans, Virtual & Debit Cards, eBills, Corporate Limits, Customer Insights) • Reduced product rollout time by 50% as a team lead through parallel design–build workflows • Increased engineering efficiency by ~70% via CI/CD automation and deployment pipelines • Architected and shipped production microservices with >99.9% uptime • Modernized legacy systems, improving performance while lowering operational cost How I work • Clear requirements → clean architecture → production-ready code • Strong preference for explicit contracts, predictable deployments, and testable systems • Comfortable collaborating with product managers, designers, DevOps, and executives • Effective in remote, distributed, and cross-time-zone teams I’m a strong fit if you need someone who can think architecturally, code pragmatically, and take responsibility for systems in production—from MVP to millions of transactions.

I help businesses build AI-powered applications, LLM integrations, and intelligent automation systems. Backed by 8+ years of production Python engineering, so they actually scale and hold up in the real world. ☑ Amongst TOP 1% Upwork talent (Expert Vetted) ☑ Top Rated Plus on Upwork ☑ 100% Job Success Rating ☑ 5-star Rating on Upwork ☑ 80% Repeat customers Hi I am Umar, with 8+ years of software engineering experience, I specialize in developing high-performance backend systems, AI integrations, automation tools, APIs, and cloud-based solutions using modern Python technologies. My expertise includes: • AI Integrations (OpenAI, Claude, Gemini, LangChain) • LLM-Powered Apps, RAG & AI Agents • Python (FastAPI, Django, Flask) • Workflow Automation & AI Agents • REST APIs & Microservices • Web Scraping & Data Processing • SaaS Application Development • PostgreSQL, MySQL, Redis • Docker, Azure, AWS, CI/CD • Background Jobs & Async Processing I focus on writing clean, maintainable, and production-ready code while ensuring scalability, security, and performance. Whether you need: ✔ AI-powered applications ✔ Business process automation ✔ Custom Python backend development ✔ API development & integrations ✔ AI chatbots & assistants ✔ Data extraction & automation tools ✔ SaaS MVP development I can help turn your idea into a reliable and scalable solution. Why clients work with me: • Clear communication • Fast and reliable delivery • Business-oriented problem solving • Long-term support & collaboration • Enterprise-level development standards Let’s build smart solutions that deliver real business value.

I help startups and growing businesses build scalable web and mobile applications that perform reliably as they grow. I’m a Full Stack & React Native Developer with 10+ years of experience, $30K+ earned on Upwork, and consistently strong client feedback. I specialize in building SaaS platforms, backend systems, and cross-platform mobile apps that are fast, stable, and built for long-term scale. If you’re launching a new product, scaling an existing system, or need a reliable technical partner who understands both engineering and business impact—you’re in the right place. WHAT I DO I work with founders, startups, and product teams to turn ideas into real, production-ready products across web and mobile. I help you: • Build SaaS platforms from idea to launch • Develop cross-platform mobile apps with native-like performance • Design scalable backend systems and APIs • Improve performance, reliability, and user experience • Reduce technical debt and streamline development WHAT MAKES ME DIFFERENT Most developers focus only on implementation. I focus on building systems that actually work at scale. With strong experience across web, mobile, and backend systems, I create solutions that: • Handle real-world usage without performance issues • Provide seamless experiences across web and mobile • Are easy to maintain, extend, and scale • Align with your business goals—not just technical specs You’re not just hiring a developer—you’re working with someone who thinks like a product partner. SERVICES Full Stack Development • End-to-end web application development • SaaS platforms (MVP to scalable products) • Clean architecture & maintainable code • Modular and scalable systems Frontend Development • React.js, Next.js, Vue.js • High-performance, responsive UI • SEO-friendly and modern UX • Tailwind CSS, Bootstrap, Material UI Mobile App Development (React Native) • Cross-platform iOS & Android apps • Native-like performance and smooth UX • API integrations and real-time features • App deployment and store readiness Backend Development • Node.js, Express.js, NestJS • Python, Django • REST APIs & GraphQL • Authentication (JWT, OAuth) • Scalable backend architecture Database Development • PostgreSQL, MySQL • MongoDB, Redis • Data modeling & optimization • High-performance queries DevOps & Cloud • AWS (EC2, S3, Lambda) • Docker & containerization • CI/CD pipelines • Nginx & Linux server management API Integrations • Stripe, PayPal, and payment systems • Third-party and custom APIs • Real-time integrations • External system connectivity AI & Automation • OpenAI / GPT integrations • AI-powered workflows • Chatbots and automation systems INDUSTRIES I’VE WORKED WITH • SaaS & B2B platforms • Mobile-first startups • AI & automation tools • Marketplaces & eCommerce • EdTech & online learning • Healthcare & wellness platforms • CRM and internal business systems HOW I WORK Understand Your Goals I align technical decisions with your business objectives. Plan & Architect I design scalable systems for both web and mobile. Build Clean, maintainable, and production-grade development. Optimize Performance, security, and user experience improvements. Deploy & Support Reliable deployment and ongoing support as you grow. TECH STACK Frontend: React.js, Next.js, Vue.js, JavaScript, TypeScript, HTML5, CSS3 Mobile: React Native (iOS & Android) Backend: Node.js, Express.js, NestJS, Python, Django Databases: PostgreSQL, MySQL, MongoDB, Redis Cloud & DevOps: AWS, Docker, CI/CD, Nginx, Linux Tools: Git, GitHub, Postman, Jira, Trello, Asana WHY CLIENTS CHOOSE ME • 10+ years of hands-on experience • $30K+ earned on Upwork with strong reviews • Expertise across web, mobile, and backend systems • Focus on scalability, performance, and clean architecture • Clear communication and quick response • Reliable delivery and long-term collaboration If you need a Full Stack & React Native Developer who can take ownership of your product—from idea to scalable web and mobile applications—let’s connect. Send me a message with your project details, and I’ll help you move forward with clarity and confidence.

Expert in MAC OS, IOS and Windows development. Apple Xcode, Swift, Objective-C, Mac OS App Development, Cocoa, IOS Expert Multiple apps on IOS appstore. Also having Microsoft Certified Solution Developer and Certified Blockchain developer credentials

🚀 𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦 𝐘𝐨𝐮𝐫 𝐒𝐭𝐚𝐫𝐭𝐮𝐩 𝐈𝐝𝐞𝐚 𝐢𝐧𝐭𝐨 𝐚 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐀𝐩𝐩 With 9+ years of experience , I specialize in building secure, fast, and scalable web/mobile apps for startups using React, Node.js, Python, Flutter, and AI/ML. From MVP to production, I help founders turn innovative ideas into market-ready apps that attract investors and users. 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 • 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Build React.js, Next.js, Node.js, and Django apps with RESTful/GraphQL APIs, PostgreSQL/MongoDB databases, and AWS deployment. • 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬 Launch iOS/Android apps faster with Flutter & React Native, optimized for performance and user retention. • 𝐀𝐈/𝐌𝐋 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐟𝐨𝐫 𝐒𝐭𝐚𝐫𝐭𝐮𝐩𝐬 Add smart features like predictive analytics (FinTech), recommendation engines (E-Commerce), or NLP chatbots using Python, TensorFlow, and FastAPI. • 𝐋𝐞𝐠𝐚𝐜𝐲 𝐂𝐨𝐝𝐞 𝐑𝐞𝐬𝐜𝐮𝐞 Fix poor scalability, refactor spaghetti code, and modernize outdated systems. 𝐖𝐡𝐲 𝐇𝐢𝐫𝐞 𝐌𝐞? ✅ 𝐏𝐫𝐨𝐯𝐞𝐧 𝐒𝐭𝐚𝐫𝐭𝐮𝐩 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: Delivered 20+ apps for E-Commerce, FinTech, Healthcare, and IoT startups. ✅ 𝐅𝐚𝐬𝐭 𝐌𝐕𝐏 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Get investor-ready prototypes in 4-6 weeks. ✅ 𝐓𝐫𝐚𝐧𝐬𝐩𝐚𝐫𝐞𝐧𝐭 𝐏𝐫𝐢𝐜𝐢𝐧𝐠: No hidden fees. Flat $25/hr or fixed-price contracts. ✅ 𝐑𝐢𝐬𝐤-𝐅𝐫𝐞𝐞 𝐆𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞: Full refund if I don’t meet your expectations. 𝐒𝐭𝐚𝐫𝐭𝐮𝐩 𝐂𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞𝐬 𝐈 𝐒𝐨𝐥𝐯𝐞 • 𝐍𝐞𝐞𝐝 𝐚𝐧 𝐌𝐕𝐏 𝐟𝐚𝐬𝐭? I deliver clean, scalable code to impress investors. • 𝐒𝐭𝐮𝐜𝐤 𝐰𝐢𝐭𝐡 𝐛𝐮𝐠𝐠𝐲 𝐥𝐞𝐠𝐚𝐜𝐲 𝐜𝐨𝐝𝐞? I refactor and optimize for future growth. • 𝐓𝐡𝐢𝐫𝐝-𝐩𝐚𝐫𝐭𝐲 𝐀𝐏𝐈𝐬 𝐟𝐚𝐢𝐥𝐢𝐧𝐠? I design custom REST/GraphQL APIs for seamless integration. • 𝐒𝐥𝐨𝐰 𝐚𝐩𝐩 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞? I optimize databases, caching, and UI/UX for speed. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐒𝐞𝐫𝐯𝐞 • E-Commerce & SaaS Platforms • FinTech & Stock Trading Apps • Healthcare & Telemedicine Tools • Food Delivery & Logistics Software • IoT & Smart Device Ecosystems 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐭𝐚𝐜𝐤 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React.js, Next.js, Flutter, React Native 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, ROR, Django, FastAPI, Flask 𝐀𝐈/𝐌𝐋: Python, TensorFlow, PyTorch, OpenAI 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: PostgreSQL, MySQL, MongoDB 𝐃𝐞𝐯𝐎𝐩𝐬: AWS, Docker, CI/CD Pipelines 📩 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐌𝐞 𝐍𝐨𝐰 – 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐘𝐨𝐮𝐫 𝐀𝐩𝐩 𝐢𝐧 𝟑𝟎 𝐃𝐚𝐲𝐬! Average response time: 15 minutes.

Hi, I’m 𝘼𝙗𝙙𝙪𝙡 𝙍𝙚𝙝𝙢𝙖𝙣, a results-driven Full Stack Developer with over 6+ years of experience architecting and building robust web applications and intelligent platforms. I specialize in creating efficient, scalable, and user-centric solutions—from e-commerce and SaaS platforms to AI-powered tools—leveraging the best in modern technologies. 🔧 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥 𝐒𝐞𝐭: 🔹 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: PHP (Laravel, Symfony, CodeIgniter) – RESTful APIs, backend logic, queues, and middleware. Node.js – Real-time applications, microservices, and serverless architectures. Python (AI/ML) – Integration of machine learning models, data processing pipelines, and automation workflows using tools like Pandas, Scikit-learn, TensorFlow/OpenAI APIs. 🔹 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Vue.js, React.js, Bootstrap – Clean, responsive UIs with dynamic behavior and seamless UX. 🔹 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬: AWS, DigitalOcean, Heroku – Scalable deployment, server provisioning, CI/CD, and monitoring. 🔹 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MySQL, PostgreSQL, MongoDB – Efficient schema design, data optimization, and secure storage. 🔹 𝐄-𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐒𝐚𝐚𝐒: Custom platform development with user management, payment gateways, analytics, and API integrations. 🧠 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? ✅ Full-Cycle Development Expertise – From architecture planning to production deployment and scaling. ✅ AI/Automation Focused – Practical experience integrating GPT-based workflows and ML-driven logic into modern web stacks. ✅ Client-Aligned Development – I translate business goals into technical reality with clear communication and agile delivery. ✅ Code Quality & Performance – Clean, maintainable code built with performance and security in mind. 💬 𝑯𝒐𝒘 𝑰 𝑾𝒐𝒓𝒌: ⏱️ Responsive Communication – Regular progress updates and transparent collaboration. 📦 Scalable Solutions – I write code that’s ready to grow with your business. 🤝 Long-Term Mindset – I aim to build lasting partnerships, offering continued support and innovation. 📩 𝑳𝒆𝒕’𝒔 𝒄𝒐𝒏𝒏𝒆𝒄𝒕! Ready to bring your next big idea to life? I’m here to help—from smart backends to intuitive frontends and everything in between. 𝑲𝒆𝒚𝒘𝒐𝒓𝒅𝒔: Full Stack Developer, PHP Laravel, Symfony, Node.js, Python, AI/ML, Vue.js, React.js, AWS, E-commerce, API Integration, SaaS, GPT Integration, CMS, DevOps, Agile, Data Processing, Backend Systems

Production-grade mobile apps, web platforms, and AI systems built by a UK-based engineer with 20 years of experience and $100k+ earned on Upwork. I don't just write code. I take ownership of the full delivery: architecture, development, deployment, store submission, and the awkward bits in between like App Store rejections, Play Console policy appeals, and production debugging at 11pm when something breaks. I've navigated all of it, and I know how to avoid most of it before it happens. Fintech & Compliance Dalmore Group: Investment trading platform handling 10,000+ daily transactions. NestJS + PostgreSQL + BullMQ backend with XState state machines for the full trade cycle. AI document extraction on Azure Foundry processing paystubs, bank statements, and tax returns. KYC/AML compliant, 100% audit-ready. AI & Automation Swake: AI-powered in-app feedback SaaS (Canny competitor). SDKs for React Native, Ionic, and Web with no-code integration. NestJS + Cloudflare Workers. Docomi: AI customer support platform (Intercom competitor). Workflow-based chatbot with RAG pipeline, knowledge base built from websites, Notion, Zendesk, SharePoint, and documents. Supabase + pgvector for semantic search. Mobile Apps (React Native) MyDiabeticHealth: Diabetic health logging app, Expo + Supabase + RevenueCat, shipped to both App Store and Google Play. AxisCare: Period and ovulation tracker with Google Drive OAuth backup, EAS builds, full Play Store compliance. Vontrix VPN: Consumer VPN app with 1,000-server WireGuard infrastructure, BullMQ delta updates, AdMob + RevenueCat monetisation. SaaS Platforms Gymnastrio: Gym management SaaS with class booking, PT booking, and Stripe Connect multi-party payments. React + .NET Core + PostgreSQL. Missio: Secure NGO collaboration platform with real-time messaging. NestJS + React Native + React.js + BullMQ. Core stack: React Native . Expo . Next.js . ReactJs. NestJS . .NET Core . Node.js PostgreSQL . Supabase . Firebase . AWS . Cloudflare Workers . Docker . Claude . OpenAI . RAG . pgvector . MCP Servers . BullMQ . XState I lead all client communication and architecture decisions personally. I have a small senior team (in my agency), I work with for execution, which is how we move fast without dropping quality. Message me to schedule a free 20-minute technical review of your project.