❤️CLIENT-oriented React Developer available for LONG-TERM projects | 🔥 116 jobs on Upwork and 0 negative feedback | 💸 Remote full stack developer with full integration in your team that makes a profit | 🚫 No small fixes ❗️ No small fixed price work | To hear me and more about my soft skills, take a look at my video introduction and the video testimonials from my previous clients (attached to the portfolio) ABOUT ME I have more than 8 years of experience building high‑traffic react nextjs applications. I help teams turn complex ideas into profitable React Node.web and React Narive mobile apps, shipping MVPs up to 3x faster using AI. With excellent communication skills and a flexible working attitude, I have successfully collaborated with clients from 23 countries, consistently implementing a “can-do” approach MY KEY ACHIEVEMENTS ✔ As a React Frontend Developer I developed a React SaaS product that simplified construction estimations, reaching 98% accuracy and reducing project estimation timelines from weeks to minutes. ✔ As a Senior React Developer I led Frontend React Nextjs Project of a global $100M+ enterprise, leveraging React Nextjs frontend Typescript , and Redux ✔ As a Frontend React Developer I worked together with Python Developer to build a high-performance marketplace, handling 500K+ monthly users. I also ensured seamless API integrations, real-time updates, and secure transactions ✔ As a React Developer I worked on Frontend react nextjs of the real-time analytics dashboard also using Redux and D3.js, allowing businesses to track KPIs in real-time and increase operational efficiency by 35% ✔ While working as a React native app developer , I also created a React Native mobile app for real-time event invitations, handling 100K+ active users with 99.8% uptime ✔ Working in the HealthTech industry as a Senior Frontend React Developer JS , I delivered a HIPAA-compliant patient portal on React that cut virtual-visit check-in times from 25 minutes to 8 minutes, serving 40 K weekly sessions ✔ As a React Nextjs Frontend Developer I created a booking system for a company in the hospitality industry, integrating Stripe, Twilio SMS, and calendar syncing, resulting in 95% fewer missed appointments ✔ While working on a LogisticsTech SaaS , I contributed to a Frontend React Development of live shipment tracking system using WebSockets (it works across 4 continents) ✔ In the EdTech sector as a React Nextjs Frontend Developer I developed an interactive React-based learning platform with gamified features, increasing course completion rates by 38% and supporting over 200K concurrent learners ✔ As a Full Stack Developer React Node for a Travel platform, I implemented a dynamic search and booking flow that decreased booking abandonment by 42% and processed $15M+ in monthly reservations ✔ In the Real Estate sector, I developed an interactive 3D model viewer in React, allowing users to explore spaces and products in real time, increasing engagement and conversion rates by 40% ✔ As a Frontend React Developer for a PropTech startup project, I built a property management dashboard that automated 85% of tenant requests, cutting operational costs by $500K annually ✔ In a Media & Entertainment project I worked as Full Stack Developer AI and built and deployed a real-time recommendation engine using deep learning, personalizing video content for 250K+ daily users ✔ For a RetailTech platform, as a full stack developer react node , I developed a customer rewards portal that drove a 60% increase in repeat purchases ✔ Working in InsurTech, python full stack developer and I engineered a policy comparison tool with real-time data feeds, reducing policy selection time from 40 minutes to under 5 minutes for 100K+ users monthly ✔ In the AgriTech industry I worked as Full Stack Developer react node and created a react nextjs frontend dashboard for IoT sensor data, enabling farmers to optimize irrigation schedules and reduce water consumption by 25% across more than 1,500 farms As a Senior React Developer firebase , I not only have extensive experience with various JavaScript frameworks ( I have over 8 years of experience in frontend react development and back-end development, and 5 years in mobile app development ) but also hold Bachelor's degree in Engineering Software. I have built and optimized scalable, high-performance web apps using React.js and have developed React Native mobile applications with lightning-fast performance Need to launch fast? As a Full Stack Developer AI , I can take your MVP from zero to live in 4 weeks, leveraging AI to streamline workflows, cut engineering overhead by 30%, and accelerate your path to seed funding as I have already done it before With me, your next release ships on schedule, scales to hundreds of thousands of users, and lets you focus on growth Let's begin the collaboration with TOP RATED PLUS Full stack Developer React by clicking "Invite" or "Hire" on the top right ↗️ 07.04.26

⭐⭐⭐⭐⭐ "𝘞𝘦 𝘸𝘦𝘳𝘦 𝘷𝘦𝘳𝘺 𝘩𝘢𝘱𝘱𝘺 𝘸𝘪𝘵𝘩 𝘵𝘩𝘦 𝘨𝘳𝘦𝘢𝘵 𝘸𝘰𝘳𝘬 𝘲𝘶𝘢𝘭𝘪𝘵𝘺 𝘈𝘯𝘯 𝘱𝘳𝘰𝘷𝘪𝘥𝘦𝘥 𝘢𝘯𝘥 𝘵𝘩𝘦 𝘕𝘢𝘵𝘪𝘧𝘦 𝘔𝘰𝘣𝘪𝘭𝘦 𝘵𝘦𝘢𝘮. 𝘐𝘧 𝘸𝘦 𝘳𝘦𝘲𝘶𝘪𝘳𝘦 𝘢𝘯𝘺 𝘸𝘰𝘳𝘬 𝘢𝘨𝘢𝘪𝘯, 𝘸𝘦 𝘸𝘪𝘭𝘭 𝘥𝘦𝘧𝘪𝘯𝘪𝘵𝘦𝘭𝘺 𝘶𝘴𝘦 𝘵𝘩𝘦𝘮." 🤝 𝐈 𝐜𝐨𝐝𝐞, 𝐚𝐝𝐯𝐢𝐬𝐞, 𝐚𝐧𝐝 𝐜𝐚𝐫𝐞 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐥𝐢𝐤𝐞 𝐢𝐭’𝐬 𝐦𝐢𝐧𝐞 𝐟𝐫𝐨𝐦 𝐭𝐡𝐞 𝐬𝐭𝐚𝐫𝐭. 👋 Hi! I’m Ann an Android & iOS mobile app developer Swift Kotlin mobile app development expert with 8+ years of experience building high-performance iOS apps, Android apps, and scalable cross-platform solutions with React Native. 🚀 Android & iOS Mobile App Developer | Swift • Kotlin • React Native | Mobile App Development As a Top Rated Plus Android & iOS mobile app developer Swift Kotlin mobile app development specialist on Upwork with 30+ five-star reviews and a 100% Job Success Score, I’ve helped 60+ companies and startups transform ideas into scalable, future-proof mobile products. Whether you need a native iOS app with Swift, a native Android app with Kotlin, or a cross-platform solution, I deliver Android & iOS mobile app development using Swift and Kotlin with precision, creativity, and enterprise-grade quality. From e-commerce, fitness, and healthcare to fintech, streaming, logistics, and wearable apps, my experience as an Android & iOS mobile app developer Swift Kotlin mobile app development professional spans 15+ industries and 50+ published apps. ✅ Why Partner with Me as Your Android & iOS Mobile App Developer: 8+ years of hands-on Android & iOS mobile app development using Swift, Kotlin, React Native 50+ successful iOS and Android apps delivered in Fitness Mobile App (Coaches, Gyms & AI Meal Plans) 10+ successful iOS and Android apps delivered in Fintech industry A strong mobile app development team of 50+ experts 100% Job Success Score and consistent 5-star reviews on Upwork Streaming, TV apps GPS and Map-based apps ( GPS trackers, MapBox, Google Maps integration) AI Mobile App Development MVP App Development for Wellness and Hospitality Platform Dating Mobile App Social Media App Development Mental Health Social Platform Enhance an Android, IOS mobile apps Figma designer. UX/UI designer Real Estate mobile apps Full-cycle Android & iOS mobile app development — from idea to App Store & Google Play launch AI App Expert specializing in Swift Kotlin mobile app development, on-device ML, real-time image & text processing, and LLM API integrations 🔧 Services I Provide as an Android & iOS Mobile App Developer (Swift & Kotlin): Native iOS app development with Swift & SwiftUI Native Android app development with Kotlin & Jetpack Compose Android & iOS mobile app development using Swift Kotlin architecture React Native app development for cross-platform solutions UI/UX design for iOS and Android apps (Figma, Sketch, Adobe XD) Secure API integrations & cloud services (AWS, Google Cloud) Scalable backend connections & microservices Wearable app development (Apple Watch, Wear OS, Bluetooth) Performance optimization & offline-first mobile app development 🎯 Industries I Specialize In as an Android & iOS Mobile App Developer (Swift Kotlin): 📦 E-Commerce | 🍔 Food & Drink | 📚 Education 💪 Health & Fitness | 💘 Dating | 🎬 Entertainment & Streaming 💼 Finance & Banking | 🌍 Travel | 📱 SaaS Platforms ⌚ Wearables & IoT | 🚚 Logistics & Booking Apps All powered by Android & iOS mobile app development with Swift and Kotlin. 🚀 Advanced Features I Build with Swift & Kotlin Mobile App Development: ✔️ Social login (Google, Apple, LinkedIn) ✔️ Real-time chat, WebRTC video calls & push notifications ✔️ Offline mode & smart data synchronization ✔️ GPS, geolocation, Bluetooth & geofencing ✔️ ARKit & advanced AR features ✔️ Firebase & cloud integrations ✔️ Monetization (AdMob, Meta Ads) ✔️ Voice assistants (Siri, Google Assistant, Alexa) ✔️ TV apps (tvOS, Android TV) & wearable tech (Garmin, Monkey-C) 💬 Why Choose Me as Your Android & iOS Mobile App Developer (Swift Kotlin): I bring deep expertise in Android & iOS mobile app development using Swift and Kotlin, focusing on clean architecture, scalability, performance, and business impact. Whether you’re a startup building an MVP or an enterprise scaling globally, I’m the Android & iOS mobile app developer Swift Kotlin mobile app development expert who can turn your vision into a successful product. 📱 Let’s connect and build a powerful Android & iOS mobile app with Swift and Kotlin. 🚀 Your trusted Android & iOS mobile app developer Swift Kotlin mobile app development partner is just one click away. UPD: 05.06.2026

🥇 Top 1% ✅ Upwork Top Rated Plus ✅ Available US business hours (EST/PST). 🔥 Ready to build something great! AI Integration, RAG Systems, Machine Learning APIs, Workflow Automation, Custom Web Apps. Python, React, Next.js, Java, Spring Boot, Node.js, Supabase. I build AI-powered web applications and integrate AI into existing systems, chatbots, RAG pipelines, OpenAI/Claude API integrations, and automated workflows using n8n and Zapier. If you have a system that needs AI added to it, or an AI prototype that needs production-grade engineering, that’s what I do. On the backend: Java/Spring Boot microservices, Node.js APIs, PostgreSQL, MongoDB, REST and GraphQL endpoints with proper error handling and monitoring. On the frontend: React and Next.js applications with auth, dashboards, and admin panels built on Supabase. Recent work includes a referral management portal (Next.js + Supabase, role-based auth, automated notifications), social media automation bots (Pinterest/Instagram API + n8n workflows on DigitalOcean), and enterprise API support for production systems handling 500K+ monthly sales. Available 30+ hrs/week. Fast turnaround, clean handoff documentation, and I respond within hours during US business days.

I'm a Shopify developer with over 10 years of experience helping ecommerce brands fix what's actually costing them sales slow performance, poor UI/UX, and conversion leaks that simple design changes can't solve. My focus is Shopify store development, store optimization, conversion rate optimization, speed optimization, Shopify Plus builds, subscriptions, and Klaviyo integrations. I also support WordPress and WooCommerce stores when they need ongoing development or migrations. I provide a 100% guarantee on the quality and reliability of my work. With 250+ completed projects and $200K+ earned on Upwork, I've worked with startups, growing DTC brands, and established ecommerce businesses across different industries. It's important to me to build long-term relationships with my clients, so I'm primarily looking for long-term projects. I'm flexible with my working hours and happy to discuss your project whenever works for you.

✅Let's start with a quick consultation or a small initial milestone so you can see I'm the right fit. 🔥PROVEN BUSINESS IMPACT - 7+ Years of engineering and building enterprise-grade applications as a .NET developer in high-stakes environments. - ROI-Driven Development: $2.5M+ in verified client impact, leveraging my background as a full stack developer to increase revenue and reduce operational overhead through expert software development. - Performance Engineering: 90% faster data processing and 75% lower infrastructure costs achieved through advanced Microservices and optimization as a senior .NET developer proficient in ASP.NET Core. - Scalability & Growth: Scaled platforms to 30,000+ active users; consistently cut time-to-market for MVPs by 4–6 weeks by applying the expertise of a seasoned full stack developer. - Legacy Modernization: Proven track record as a .NET developer migrating legacy systems - including .NET Framework and .NET Compact Framework - to modern architectures, resulting in 40% fewer bugs. - Efficiency Gains: Reduced admin friction by 45% through custom-built automation, demonstrating the value a dedicated full-stack developer brings to complex SQL-driven workflows. 👨🏻‍💻THE PARTNERSHIP EXPERIENCE - Full-Stack Authority: Microsoft-certified expertise spanning the entire development lifecycle, from robust C# backend architecture to dynamic frontend interfaces. - Versatile Tech Lead: Whether you need a full stack developer for MVP creation, a .NET developer for enterprise scale, or a java developer for backend migration, I bridge the gap between technical requirements and business goals. I also offer the flexibility of a java developer for interoperability, and the analytical power of a python developer for data-heavy tasks. - Agile & Transparent: High-velocity delivery using JIRA/Asana, providing the clear, consistent communication expected from a senior full-stack developer. ⚙️ ENGINEERING CAPABILITIES - Backend Architecture: Building high-throughput systems with C#, ASP.NET Core, and ASP.NET Web API. I also offer the flexibility of a java developer to integrate with diverse existing ecosystems. - Modern Frontend: Crafting dynamic UI/UX using Angular, React, and JavaScript. My deep experience with HTML5, CSS 3, and Bootstrap ensures highly responsive, mobile-first designs. - Cloud & Infrastructure: End-to-end management of cloud-native ecosystems (Azure/AWS) and containerized deployment pipelines as a lead .NET developer. - Data & Performance: Advanced database design using Microsoft SQL Server and complex SQL queries to cut data latencies by up to 50%. - Cross-Functional Skills: I bring the architectural discipline of a .NET developer - including ASP.NET MVC and ASP.NET expertise - to every project, while also offering the modern tooling mindset of a full stack developer using Node.js. 🏆 DOMAIN SPECIALTIES - FinTech: Secure ledger systems and transaction management built by a specialized .NET developer. - Healthcare: HIPAA-compliant patient management portals and telehealth solutions. - LegalTech/Enterprise: Complex document workflows and granular RBAC. ⚒️ TECHNICAL TOOLSET - The .NET Stack: .NET Framework, .NET Compact Framework, ASP.NET Core, ASP.NET Web API, ASP.NET MVC, ASP.NET, C#. - Frontend Mastery: Angular, React, JavaScript, HTML5, CSS 3, Bootstrap, jQuery. - Data Layer: Microsoft SQL Server, SQL, Redis, MongoDB, ElasticSearch. - General Stack: Node.js, Python, Docker, CI/CD. - Engineering Standard: Clean Architecture, SOLID Principles, and an uncompromising focus on software development quality. 📩If you’re looking for a reliable and experienced .NET Developer and full stack development partner who understands both technology and business impact, I’d be happy to connect - feel free to invite me for an interview!

I’m 𝗞𝗮𝘀𝗵𝗶𝗳 𝗧𝗮𝗿𝗶𝗾, a 𝗧𝗼𝗽 𝟭% AI-driven 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 with over 𝟭𝟬 𝘆𝗲𝗮𝗿𝘀 of experience. I’ve delivered 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗦𝗮𝗮𝗦 and 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝐧𝐬. 𝗛𝗲𝗮𝗱𝗹𝗲𝘀𝘀 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 | 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝗣𝗹𝘂𝘀 | 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝗛𝘆𝗱𝗿𝗼𝗴𝗲𝗻 | 𝗡𝗲𝘅𝘁.𝗷𝘀 | 𝗦𝘁𝗼𝗿𝗲𝗳𝗿𝗼𝗻𝘁 𝗔𝗣𝗜 | 𝗔𝗱𝗺𝗶𝗻 𝗔𝗣𝗜 | 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗟𝗶𝗾𝘂𝗶𝗱 𝗘𝘅𝗽𝗲𝗿𝘁 | 𝗖𝗥𝗢 & 𝗦𝗘𝗢 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝘁 | 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀 | 𝗡𝗼𝗱𝗲.𝗷𝘀 | 𝗡𝗲𝘀𝘁.𝗷𝘀 | 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁 | 𝗣𝘆𝘁𝗵𝗼𝗻 | 𝗙𝗮𝘀𝘁𝗔𝗣𝗜 | 𝗗𝗷𝗮𝗻𝗴𝗼 | 𝗥𝘂𝗯𝘆 𝗼𝗻 𝗥𝗮𝗶𝗹𝘀 | 𝗧𝘄𝗶𝗹𝗶𝗼 𝗔𝗣𝗜 | 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 | 𝗥𝗔𝗚 | 𝗻𝟴𝗻 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 With a track record of completing over 100+ projects, I specialize in Shopify, Ruby on Rails, and Python, ensuring scalable, stable, and high-performance ✅ Cursor – AI-powered IDE for rapid coding ✅ ClaudeCode with MCP – Smart, Agent-Driven Code Assistance ✅ Replit – AI agent for accelerated development ✅ Lovable.dev – AI agent for accelerated development ✅ GitHub Copilot – Intelligent code assistance ✅ Google Antigravity - AI Assisted Development 🧩𝗪𝗛𝗔𝗧 𝗜 𝗗O 🚀 𝗦𝘁𝗿𝗲𝗻𝗴𝘁𝗵𝘀 & 𝗦𝗸𝗶𝗹𝗹𝘀: ✅ Shopify developer in e-commerce development: Shopify |Shopify Developer Shopify Plus | Shopify Designer / Developer (Liquid, page builder, apps)|Shopify Dev|Shopify Site Migration Shopify templates|Shopify Frontend Developer| ✅ Web Development: React | Next.js | 𝘼𝙄 𝘼𝙜𝙚𝙣𝙩𝙨: 𝙈𝙪𝙡𝙩𝙞-𝙖𝙜𝙚𝙣𝙩 𝙖𝙧𝙘𝙝𝙞𝙩𝙚𝙘𝙩𝙪𝙧𝙚𝙨, 𝙍𝘼𝙂 𝙥𝙞𝙥𝙚𝙡𝙞𝙣𝙚𝙨, 𝙘𝙪𝙨𝙩𝙤𝙢 𝙇𝙇𝙈 𝙞𝙣𝙩𝙚𝙜𝙧𝙖𝙩𝙞𝙤𝙣𝙨 Voice Agents: STT/TTS systems with real-time orchestration Automation: n8n workflows, Zapier integrations, custom Python scripts Business Process Automation: CRM integration, Task automation, Workflow optimization Think chatbots that actually help, voice agents that don't sound robotic, and automation that replaces manual busywork. 🔧 Technical Stack Area Technologies Backend Node.js, Nest.js, Ruby on Rails, Python, FastAPI, Frontend React, TypeScript AI/ML LLMs, RAG, Multi-agent systems, Voice AI Automation n8n, Zapier, Custom Python scripts APIs REST, GraphQL Clou .AWS, Azure, GCP, Replit DevOps CI/CD, Microservices, Containerization Twilio For Messaging Build AI Phone Voice Bot (Twilio + OpenAI + ElevenLabs) 📦 Example Projects SaaS Platforms: Full-stack applications with React frontends and Node.js/Python backends AI Voice Agents: Customer support automation with real-time speech processing Why Clients Choose Me: ✔ 100% on-time delivery – Proven track record of delivering projects efficiently ✔ Detail-Oriented Approach – Focus on the last 20% that drives 80% of results ✔ Scalability & Performance – Expertise in cloud-native, microservices, API-driven, and AI/ML-based applications ✔ Full Lifecycle Development – From MVP to enterprise-grade sol Full-Stack Development: ✔ Web & Mobile Apps | SaaS | MVP Development | AI Agents | CMS | AI Bots | Automation Workflows | AI Agent Development | AI Integrations AI & Machine Learning: ✔ AI SaaS Apps | AI Agents | NLP | Data Analytics | Generative AI | OpenAI, Claude, Gemini | LanChain | n8n | AI Agent Development | AI Integrations | TensorFlow | PyTorch | Hugging Face | SageMaker Frontend: Next.js, React.js, Vue.js, Angular js,TypeScript, Tailwind CSS Backend: Node.js, Python,Ruby on Rails Django, Laravel, NestJS, Express.js, FastAPI, GraphQL, Flask Mobile: React Native, Flutter Databases: MySQL, MongoDB, PostgreSQL, Pinecone,Supabase Cloud & DevOps: AWS (Lambda, EC2, S3, Kubernetes), Docker, Nginx, Firebase Hands-on experience using AI-assisted / vibe coding tools (Replit, Cursor, Vercel, AWS, Supabase, etc.) and traditional development workflows. Keywords: AI Developer, AI Engineer, Ruby on Rails AI SaaS Developer, Generative AI Developer, AI Agent Developer, ChatGPT Developer, Claude AI Developer, MCP Developer, Cursor AI Developer, LangChain Developer, LLM Apps Developer, AI Automation Expert, AI Workflow Automation, Custom AI Platforms, AI Integrations, Python AI Developer, Node.js AI Developer, Next.js AI Developer, React AI Developer, AI Chatbot Developer, AI MVP Development, SaaS Developer, Full Stack AI Developer, AI in FinTech, AI in Healthcare, AI Consultant, Ruby on Rails Developer, AI Prototyping Expert, n8n Automation Developer, OpenAI API Developer, Claude API Integrations, TensorFlow Developer, FastAPI AI Developer, Django AI Developer, AI Product Developer, Python Developer, Full Stack Developer ShopifyExpert #Shopify, #Shopify Plus, #Shopify Development, #Shopify App Development, #Shopify Theme Customization, #Liquid, #HTML, #CSS, #JavaScript, #Node.js, #React, #API Integration, #REST API, #GraphQL, #Shopify Flow, #Shopify Speed Optimization #Shopify #ShopifyStoreDesign #ShopifyDeveloper #ShopifyWebsiteDesigner #ShopifyWebsiteDesign #ShopifyDesigner#twilio

⬥ 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with European Commission, European Investment Bank, CACEIS Investor Services, Walmart (Hayneedle), GAP, Williams-sonoma inc & other US clients. ⬥ 𝟴+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 in Java, Node.js, Python, Spring Boot, React, Angular, AWS, Docker ⬥ 𝐁𝐚𝐬𝐞𝐝 𝐢𝐧 𝐋𝐮𝐱𝐞𝐦𝐛𝐨𝐮𝐫𝐠 | 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐟𝐨𝐫 𝐑𝐞𝐦𝐨𝐭𝐞 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐖𝐨𝐫𝐥𝐝𝐰𝐢𝐝𝐞 With over 𝟴 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐡𝐚𝐧𝐝𝐬-𝐨𝐧 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I build scalable, secure, and high-performance web applications across finance, e-commerce, and enterprise domains. 𝐈 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐢𝐧: ▪ Backend: Node.js, Python (FastAPI, Django), Java, Spring Boot ▪ Frontend: Angular, React.js ▪ Realtime Systems: Kafka, Elasticsearch ▪ Deployment: Docker, AWS, Azure, GitHub Actions 🧩 𝗞𝗲𝘆 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 ⬥ 𝗖𝗔𝗖𝗘𝗜𝗦 𝗜𝗻𝘃𝗲𝘀𝘁𝗼𝗿 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 Built Java Spring Boot, Node.js (NestJS) services for event-driven financial reporting and investor data processing. Used Apache Kafka for asynchronous workflows, PostgreSQL for data persistence, and AWS with Jenkins and Argo CD for CI/CD and deployments. ⬥ 𝗪𝗮𝗹𝗺𝗮𝗿𝘁 – 𝗛𝗮𝘆𝗻𝗲𝗲𝗱𝗹𝗲 Built Node.js/Express APIs and React-based UI for fulfillment, deals, and order tracking. Used Elasticsearch for lightning-fast product search and Kafka for live order status updates. ⬥ 𝗚𝗔𝗣 Developed Python (FastAPI) backend for inventory and pricing. Integrated PostgreSQL, Redis, and JWT. Supported React frontend. CI/CD via Docker and GitHub Actions. ⬥ 𝗪𝗦𝗜 (Williams-Sonoma Inc.) Built Node.js/Express microservices for product, pricing, and order workflows. Used MongoDB, Redis, and Mongoose for fast data handling. Deployed via Docker on Azure with CI/CD and monitored with PM2/Winston. ⬥ 𝗘𝘂𝗿𝗼𝗽𝗲𝗮𝗻 𝗜𝗻𝘃𝗲𝘀𝘁𝗺𝗲𝗻𝘁 𝗕𝗮𝗻𝗸 Built secure Spring Boot services to process SWIFT messages and automate high-volume cashflows in a critical fintech environment. ⬥ 𝗘𝘂𝗿𝗼𝗽𝗲𝗮𝗻 𝗖𝗼𝗺𝗺𝗶𝘀𝘀𝗶𝗼𝗻 Developed Angular frontend and Java EE backend deployed on WebLogic for customs and taxation systems. Delivered secure, production-ready features in a regulated government environment. 🛠 𝗖𝗼𝗿𝗲 𝗦𝗸𝗶𝗹𝗹𝘀 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Node.js, Express.js, Python (FastAPI, Django, Flask), Java, Spring Boot, REST/SOAP, Kafka, Microservices 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Angular, React.js, TypeScript, Tailwind CSS, PrimeNG, Responsive UI/UX 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗖𝗹𝗼𝘂𝗱: Docker, Kubernetes, Jenkins, GitHub Actions, AWS (EC2, Lambda, S3), Azure 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, Oracle SQL, MongoDB, MySQL, Redis, Elasticsearch 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Selenium, Jest, Mocha, Postman, Unit & Integration Testing, TDD 𝗧𝗼𝗼𝗹𝘀 & 𝗣𝗿𝗼𝗰𝗲𝘀𝘀: Agile/Scrum, Git, Maven, Gradle, CI/CD, API Design ✅ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 ▪ Full-stack expertise across Java, Node.js, Python, Angular & React ▪ Proven success on platforms with millions of users & high-volume data ▪ Clean, maintainable, testable code with performance focus ▪ Fast communication, reliable delivery, agile mindset ▪ End-to-end execution: from architecture to cloud deployment 💡 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗙𝗼𝗿 𝗬𝗼𝘂 ▪ Build fast, cloud-native, production-grade web applications ▪ Develop secure, scalable REST APIs and backend systems ▪ Deliver pixel-perfect, responsive UIs using modern frameworks ▪ Automate deployments and streamline delivery pipelines ▪ Debug, optimize, and modernize your software infrastructure 📩 𝗟𝗲𝘁’𝘀 𝗪𝗼𝗿𝗸 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿 Ready to take your product to the next level? Message me today — let’s build something that performs.

I am a Senior Golang Developer specializing in Systems Designing and architecture with a focus on building intuitive and effective 𝗪𝗲𝗯 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 in 𝗚𝗼𝗹𝗮𝗻𝗴, Nodejs, Python, Ruby and React/Vue using best practices and common design patterns. I am a problem solver, architect and have more than 𝟖 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗶𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. Experienced in building scalable, parallel and distributed processing systems based on highload lowlatency database systems and throughout my career, I have honed my technical leadership skills and developed a knack for effective communication and engaging presentations. My ability to learn quickly and my expertise working collaboratively across diverse geographical locations set me apart in this fast-paced industry. I have been a valuable contributor in the end-to-end development of various products. I have taken ownership of the entire process, starting with defining system requirements and managing partner dependencies to implementing efficient software, conducting thorough testing, and finally, monitoring performance through metrics, alarms, and dashboards. Technical Skills: - Go, Python, Java, Javascript, Node.js, Tensorflow, Scalable Systems, Keras, NumPy, Serverless Frameworks, Docker, Terraform, Ansible, Kubernetes, Jenkins, Spinnaker, GitOps, DataOps, AWS. GCP, Azure, JAMstack, Temporal, Debezium, GraphQL, MEAN Stack, React, Redux, ES6, Express, MongoDB, Redis, Linux, Etcd, Consul, Kinesis, Redshift, DynamoDB, Spark, Hadoop, Kafka, PostgreSQL, MySQL, ELK, Sass, Webpack, Gulp, Git, Ethereum, Solidity, OpenZeppelin, Flask, Redis, NATS, NSQ, AWS, GCP, Heroku, DigitalOcean, Cloudflare, Twillio, Shopify, VAPI and Django 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Golang, Go, Node.js Developer, Express.js, RESTful APIs, Real-time applications, Scalable applications, Asynchronous programming, AI Integration, Automations, Node.js frameworks, NPM, Server-side JavaScript, Microservices architecture, TypeScript, Angular CLI, Single Page, GraphQL Schema, Ecto Database Specialist, Microservices Architect, WebSockets Guru, Claude, Progressive Web App (PWA) Artisan, OAuth 2.0 Specialist, Git Version Control Virtuoso, Continuous Integration (CI/CD) Connoisseur, WebAssembly Enthusiast, Progressive Enhancement Prodigy, Responsive Design Authority, Web Accessibility Advocate, Elixir Testing Aficionado, Virtuoso DevOps, Agile Development Prodigy, Scrum Master, Kanban Maestro, Code Review Guru, Technical Documentation Virtuoso, Open Source Contributor, Code Optimization Maestro, Performance Tuning Specialist, DevSecOps Advocate, API Gateway Expertise, Serverless Computing Guru, Lambda Functions Virtuoso, Infrastructure as Code (IaC) Specialist, GraphQL Federation Connoisseur, Web3.0 Enthusiast, Decentralized Applications (DApps) Authority, Solidity Smart Contracts Maestro, Tokenomics Expert, DeFi (Decentralized Finance) Aficionado, Cybersecurity Guru, Chatbot Development, Reinforcement Learning Aficionado, IoT (Internet of Things) Specialist, Edge Computing Enthusiast, Quantum Computing Guru.

I am a highly experienced Backend Developer with over 5 years of experience in Java/Spring development. I have a strong portfolio, having worked with companies such as Sahmik, Techrivo, Nestle Nespresso, PowerFolder, and SQLI. I have expertise in Java/JEE/Hybris development, and am proficient in HTML 5/CSS 3, JavaScript, ReactJS (basic), Spring Framework, Hibernate, Hybris, Swagger, and Web Services (SOAP, REST). I have a solid understanding of Clean Code, SOLID, GRASP, Effective Java, and Design Patterns principles. I have experience with RDBMS such as Oracle and MySQL and have used tools like Junit, Mockito, IntelliJ, Bitbucket, Git, Maven, Ant, Nexus, Sonar, JIRA, and Jenkins. I am well-versed in Scrum methodology and have experience with Linux, Tomcat, and nginx servers. In addition to my technical skills, I am fluent in Arabic, French, and English, and am a certified Java SE 8 Oracle Certified Associate (OCA). I am dedicated to delivering high-quality, efficient, and well-designed solutions to my clients and am always eager to learn and improve my skills.

I’m Houssem, a Full-Stack Web Developer 4+experience specializing in building scalable, secure, and high-performance web applications for startups and businesses. I help clients turn ideas into production-ready platforms using modern backend frameworks such as Django REST Framework and FastAPI, combined with powerful frontend technologies like Angular and Next.js. My focus is on clean architecture, efficient backend systems, secure APIs, and maintainable code that supports long-term business growth. What I Can Help You With Full-Stack Web Development I can build complete web applications from backend to frontend, including REST APIs, authentication systems, dashboards, admin panels, and responsive user interfaces. Backend & API Development I develop reliable backend systems using Django REST, FastAPI, and Flask. I can design and optimize APIs, structure PostgreSQL databases, and build scalable backend architectures. Frontend Development I create modern, responsive, and user-friendly interfaces using Angular, Next.js, JavaScript, and TypeScript. DevOps & Deployment I can help containerize applications with Docker, set up CI/CD pipelines with GitHub Actions or Jenkins, and deploy web applications on AWS. Automation & Integrations I also build Python automation scripts, web scraping tools, data pipelines, and third-party API integrations to improve business workflows. Tech Stack Languages: Python, JavaScript, TypeScript, Java Backend: Django REST Framework, FastAPI, Flask Frontend: Angular, Next.js, Responsive UI Databases: PostgreSQL DevOps: Docker, Git, GitHub Actions, Jenkins, AWS Automation: Python scripting, web scraping, API integrations Why Work With Me? I build fast, reliable, and scalable web applications that are ready for real-world use. Whether you need a complete platform, a backend API, a frontend integration, or deployment support, I deliver clean, professional, and production-ready solutions. Let’s build something great together. 🚀