Hello world! I'm looking for opportunities to grow, share, and contribute by utilising professional experience in developing web application using contemporary technologies surrounding the Javascript ecosystem, especially in the Svelte & Vite toolchain, with deep appreciation for user experience, performance, progressive enhancement, and accessibility. Besides my day job, I am also an open source contributor, and a community builder. My latest work include svelte-put - a collection of utilities for the Svelte ecosystem, and Svelte Vietnam, an inclusive community and information hub for people of Svelte in Vietnam. For more of my work, please check out github/vnphanquang. Thanks for stopping by, and talk soon!

Code & conversion? You can have both — if you test in prod with me. I’m Ivan, tech copywriter turned full stack developer. I run a UX writing app and a few aerospace products, and I’d love to help you build, sell, and scale yours. ⭐⭐⭐⭐⭐ "We hit $960k a month from $200k average thanks to Ivan's landing page and ad creative. Our all-time record revenue." – Vin D'Eletto, founder of WordAgents My specialty is building usable (and useful) SaaS products that ooze personality —writing, designing, and coding the full pipeline from scratch. I started as a UX copywriter (killer at conversion), but now I code in a modern tech stack to attach words to working apps. Frontend: Svelte/SvelteKit • React/Nextjs • Shopify Hydrogen • Three.js/Threlte • Tailwind Backend: Python/Streamlit • Google Apps Script • Firebase • Supabase • Expo Apps: React Native • Flutter • Rust *** Indie founder *** 🖋️ pipewriter.io – UX app for writers. Wireframes in Google Docs, webapp, and AI workflows. Bridges the writing-design gap [Svelte • Apps Script • Firebase] 🛰️ spacefomo.com – AI-curated space race news with weekly “FOMO” score [Svelte • Notion • Perplexity] 🐈‍⬛ 6pack.cc – avionics app for pilots… and cats. Experiment in pilot UX with gesture control, 3D, neo-brutalism and a memorable PR stunt [Arduino • React Native • Threejs • Mediapipe • Nextjs] ⭐⭐⭐⭐⭐ “I've never seen a tool like this that works natively in Docs. Been building wireframes by hand using tables, even for five-figure contracts. This changes everything for us UX writers.” – Eoin Cronnolly, SaaS Copywriter (Pipewriter user) *** Aerospace *** Building tools for the new space age — from composite wing design to rocket propulsion analysis. I combine aerospace engineering principles with modern web tech to create accessible, powerful tools for engineers. Python • Streamlit • Onshape • OpenMotor • FEMAP Nastran • XFoil • Rocket Propulsion Analysis *** Let’s tech together *** I live at the intersection of branding, UX and hi-tech engineering. This unique perspective helps me create tools that are not just powerful, but actually enjoyable to use. Your users shouldn't have to choose between capability and usability. ✅ UX-obsessed – I turn complex workflows into smooth experiences ✅ Dev-backed copywriting – Technical writing that actually reflects how code works ✅ Systems engineering mindset – Breaking down complex problems into elegant solutions Ready to make developer tools that engineers actually want to use?

❤️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

𝗪𝗵𝘆 𝗦𝗵𝗼𝘂𝗹𝗱 𝗬𝗼𝘂 𝗛𝗶𝗿𝗲 𝗠𝗲? Senior Full Stack Developer | Web Apps | AI Agents | LLM Integration | AI-Powered CRMs | MVP Development | Real-Time Dashboards | N8N | Langchain | RAG | Node.js Developer | Supabase | PostgreSQL | Backend Developer | Replit | Lovable | CRM/POS Software | Customer Service Chatbot | Top Rated Plus | Top 3% Talent I focus on solving real-world business challenges by building AI-driven web applications and automation solutions for startups and emerging businesses including CRM/ERP systems, intelligent chatbots, and real-time dashboards that enhance efficiency and drive scalable growth. ✅ Ready to kick off your project? Hit the 𝐈𝐍𝐕𝐈𝐓𝐄 button on my profile, and I’ll dive right in to make things happen! 𝐅𝐔𝐋𝐋𝐘 𝐀𝐕𝐀𝐈𝐋𝐀𝐁𝐋𝐄 𝐓𝐎 𝐒𝐓𝐀𝐑𝐓 𝐓𝐎𝐃𝐀𝐘 ✅ 8+ years of experience in Full Stack Development ✅ Support after completion of the project ✅ 30+ projects delivered with success ✅ Major Solutions I Provide: • CRM/ERP Software Development • Custom Web Applications • E-Commerce Web App Solutions • Fitness and Travel Web Apps • AI Chatbot Integration (OpenAI, LangChain, LangGraph) • AI Agents & Workflow Automation (CrewAI, AutoGen, LangGraph) • LLM-Powered Custom Tools (LangChain, RAG, Vector DBs, Embeddings) • Multi-Agent Systems & Intelligent Task Orchestration (CrewAI, AutoGen, LangGraph) • AI-Powered Automation for Business Processes • Comprehensive Hospital/Dental Management Systems (with AI Support Tools) • Financial Web Solutions with Real-Time Analytics & Predictive AI Insights • Custom Dashboards & Reporting with LLM-Driven Insights ✅ Technical Expertise Frontend development • Frameworks: React.js, Next.js, Svelte, SvelteKit, Vue.js, Angular.js • Languages: JavaScript, TypeScript, HTML5, CSS • UI/UX Libraries: Tailwind CSS, Material UI, Bootstrap, Ant Design • Responsive Design: CSS Flexbox, Grid Layout, and cross-browser compatibility. Backend & server-side: • Languages: Node.js, Express.js, Python • Databases: Firebase, Supabase, PostgreSQL, MongoDB, Redis, Microsoft SQL Server, Prisma • API Development: REST APIs, GraphQL, Socketio • Authentication: OAuth 2.0, Lucia Auth DevOps & deployment: • Cloud: AWS, Azure, GCP • CI/CD: GitLab, Docker, Azure Pipelines, Terraform • Hosting: Heroku, Netlify, DigitalOcean Mobile app development: • Platforms: React Native, Flutter • UI/UX for Mobile: Expertise in building sleek and user-friendly mobile interfaces. Process & approach: 1️⃣ Requirements analysis – I carefully understand your business model and project goals 2️⃣ UI/UX design & development – Creating responsive, user-centric designs that engage 3️⃣ Backend & API development – Building scalable and secure backend solutions 4️⃣ Testing & deployment – Ensuring a smooth, bug-free launch 𝐋𝐞𝐭'𝐬 𝐂𝐨𝐧𝐧𝐞𝐜𝐭! Message me, and let's kick off your project today.

-- lucasfurtado.xyz -- I can craft and design comprehensive web applications, using a diverse range of technology stacks. I always approach my work with energy and a willingness to learn something new!

Full Stack Developer and technical partner with 10+ years of experience building SaaS platforms, cloud applications, and complex digital products from idea to production. ⭐ 5.0 client feedback 🏆 100+ successful client partnerships 🤖 AI-enhanced engineering with Claude and modern AI tools 🚀 Founder & CEO of Softonix I work with startups, scale-ups, and established businesses that need more than a developer who simply completes tickets. Need one senior technical partner? I can work hands-on. Need more firepower? I can bring in the right engineers from my team while staying directly involved in your project. I help take products from an idea, prototype, or legacy system to a production-ready solution, covering technical planning, architecture, frontend, backend, cloud, integrations, QA, deployment, and ongoing development. ⚡ WHAT SETS ME APART → From idea to production I look beyond individual tickets and focus on the product, users, workflows, and business goals behind the code. Before development starts, I help clarify the technical approach, key workflows, risks, and feature priorities so engineering time goes where it creates the most value. → AI-enhanced development I actively use Claude and modern AI engineering tools to accelerate code analysis, implementation, rapid prototyping, and repetitive development work. The result is faster execution combined with senior technical judgment around architecture, code quality, security, and long-term maintainability. → End-to-end technical ownership Discovery → Architecture → Frontend → Backend → APIs → Cloud → QA → Deployment → Maintenance Whether we're launching a new SaaS product or modernizing an existing platform, I focus on building software that is ready for real users and future growth. 🛠 CORE EXPERTISE Frontend: React.js, Next.js, Vue.js, Nuxt, Angular, TypeScript, JavaScript, Tailwind CSS Backend: Node.js, .NET, ASP.NET Core, REST APIs, microservices Cloud & architecture: AWS, Azure, cloud-native applications, SaaS architecture, scalable systems, third-party integrations Mobile: Flutter, React Native, cross-platform mobile applications AI engineering: Claude, LLM integrations, AI APIs, AI-assisted development workflows, AI-enabled SaaS products My hands-on and team experience spans SaaS, analytics, HRTech, marketplaces, AdTech, automotive software, FinTech, e-commerce, and mobile products. 🤝 SOLO WHEN IT FITS. TEAM WHEN IT SCALES. As the Founder & CEO of Softonix, I've helped 100+ clients navigate complex technical challenges while balancing delivery speed, product quality, and development costs. Depending on the project, I can work hands-on or bring in the right engineers from my team while staying directly involved in the technical direction and delivery. You get direct communication and senior technical involvement, with access to experienced frontend, backend, Flutter, React Native, QA, and cloud engineers when the project needs more capacity or specialized expertise. Softonix is your engineering team when you don't have one, and your extra firepower when you do ⚡ Send me an invite and let’s get started!

🔥 Upwork's Top Rated Plus Developer ⭐⭐⭐⭐⭐ ✅ 2500+ High-Quality Hours ⏰ ✅ 100% Job success Hey there, I am Divyaraj experienced full-stack developer, I have 8+ years of experience in software development and have worked with a variety of technologies including JavaScript, NodeJs, ReactJs, React Native, Angular, Ionic, NX, Monorepo, Microservices, Kubernetes, Docker, and containerization. My speciality is in building cloud ERP products and I have a deep understanding of business operations and have worked with companies of all sizes across various industries. I have 5+ years of experience in Angular, Typescript, Nestjs, and nx.dev, and 3+ years of experience in working with flutter. I am well-versed in leading large-scale sales and technology engagements across retail, financial services, professional services, and life sciences. My skillset includes full-stack web development, technical architecture, master data management, process automation, and project management. My technical stack includes Node.JS, AngularJS, Express.JS, NestJS, nx.dev, TypeScript, RxJS, PostgreSQL, MySQL, Mongo, SQLite, Redis, Javascript/JQuery, HTML5, CSS3, Bootstrap, LESS/SASS, Javascript ES6, ES7, JSX, Babel, ESLint, CoffeeScript, GitHub, BitBucket, Trello, Jira, Heroku, AWS, DigitalOcean, Google Cloud Platform, Sketch, Figma. ✅ NextJS, NestJS, ReactJS, Svelte, ReactJS, Astro ✅ Web, Mobile app Designing ✅ Software architecturing ✅ Unit Testing, End to end testing, Network Testing, Performance Testing ✅ Deploying, CI/CD. ✅ Customization ✅ GPT-3 ✅ Potfolio ✅ NodeJS ✅ Standalone ✅ Angular 2 to 16 & standalone I am available to work as per US shift and I excel in creating synergies in client business challenges by harmonizing data, people, process, and technology around a common set of goals and objectives geared towards reducing the cost of sales. I am Level 1 and Level 2 certified in English and I have experience working both individually and as part of a team.

I'm an experienced Full Stack Web & Mobile App developer with over 8 years of experience. I work with the following technologies and Stacks: - Front End Development: React, Angular, Vue, Next.js, Redux, Svelte, Material UI, TailwindCSS, Capacitor, HTML - Back end Development: Node.js, Typescript, Express.js, Nest.js - Ecommerce Development: Shopify, Shopify Plus - Hybrid / Cross-Platform Mobile applications using React Native - Automated Testing: Playwright, Cypress, Puppeteer, Selenium Let's work together to develop the perfect app for your business.

⚡ “Jarmo was an absolute unit.” That’s what one of my long-term clients said about me — and I wear that badge with pride: “He took immense initiative, added great touches, delivered a bug-free product, and made handover a breeze. We’ll 100% work with him again.” – Vaibhav Namburi, Founder of Smartwriter.ai, Smartlead.ai, five2one I don’t do free test tasks or week-long hiring funnels. With over 8 years of experience in full-stack and AI engineering, I specialize in helping ambitious startups and scaling teams build clean, production-ready solutions — from MVP to scaling infrastructure — with speed, precision, and reliability. ✅ What I bring to the table: - AI-first Development: Experience implementing RAG (Retrieval-Augmented Generation) pipelines for AI agents and knowledge assistants using Embeddings, Vector Stores (Pinecone, Weaviate, Supabase), and LLMs (OpenAI, Claude, Mistral, Gemini). - Hands-on with fine-tuning LLMs (OpenAI function calling, LoRA adapters, quantization) and prompt-engineering for real-world applications (support agents, content automation, internal tools). - Used LangChain, LlamaIndex, Haystack, and OpenRouter to ship AI-native apps fast. - Integrated LLM caching layers, observability (Langfuse), and streaming outputs with full frontend/backend support. Frontend Expertise: - SvelteKit / Vue / Nuxt for fast, lightweight UI - TailwindCSS, SCSS, PWA setup - Experience in headless CMS setups with Strapi, Contentful, Medusa – ideal for marketing sites or eCommerce Backend + APIs: - Golang, Node.js (Nest.js & Express.js), Deno, - PostgreSQL, Redis, MongoDB - Firebase/Supabase for serverless use cases - Built and maintained robust REST/GraphQL APIs Integrated with 3rd party APIs: Stripe, Twilio, Gmail, Search Console, OpenAI, Facebook, IPInfo, Mapbox Cloud & DevOps: - GCP (Google Cloud), DigitalOcean (agency partner), Cloudflare - CI/CD with GitHub Actions, Vercel, Netlify, Heroku - Dockerized setups and container orchestration on Ubuntu/Linux Leadership & Collaboration: - Led teams of 8+ engineers across timezone-diverse teams in the EU, US, and Australia - Strong async communication using Loom, Linear, Slack, and Notion - Collaborative with product managers and designers; happy to hop on calls, or build in silence — whatever works best 🧠 Bonus Skills: - LLM/RAG Playground Dev: Built internal tooling for iterating on prompts and retrievers for RAG pipelines. - Vector Search: Setup Supabase & Weaviate-backed vector databases from scratch, used with cosine similarity, hybrid ranking, metadata filtering, and chunking strategies. - AI Infra: Familiar with huggingface transformers, ONNX conversion, quantized models, and deploying optimized endpoints. - Realtime systems: Websockets, server-sent events (SSE), background workers using Golang or Node. If you're looking to work with a developer who can do more than just "code features" — someone who can: - Architect your AI stack, - Set up your infra and deploy your app, - Build a scalable, maintainable product from scratch, - Or take your MVP to v1 with confidence — 👉 Let’s talk. I build fast, communicate clearly, and aim for long-term collaboration.

🚀 AI and AWS Certified Fullstack SAAS Developer building since 2016 with 100% Job Success 🚀 Worked as a Sr. Software Engineer at U.S. Enterprise; "SolarWinds" (~$729M ARR + 300K+ customers). 🚀 Worked as Lead Engineer at "Ericsson (4G/5G)" their 2025 Net Sales was SEK 236.7 billion. 🚀 Worked on both Web and Mobile Apps for "Strava" AI driven Fitness-tracking & Social Networking SAAS Platform (~$2.2B Valuation, ~180M+ users) with GPS-powered exercise logging. During the past 10 years, I have gained hands-on experience in end-to-end Software Development (MVP + SAAS). I helped building, scaling, and modernizing production systems for Startups and large Enterprises alike. I can help with: - MVP & SAAS Development - Web and Mobile Application Development - Frontend and Backend Development - Chrome Extension Development - AI App Development. AI Chatbots and AI Agents - Machine Learning, NLP, LLMs, RAG - CRM and ERP integration + Development - Monolith to Microservices architectures - Cloud Engineering / DevOps - Automations (n8n, Make, Zapier) - AI-driven coding tools (GitHub Copilot, Claude code) - Low-code / no-code tools (Bubble, Retool, Lovable, Bolt, Airtable, Base44) - eCommerce / Shopify Stores 🏆Snapshot of my Technical Skills and Stacks: 🎯Frontend Development: • React, Next.js, Vue.js, Nuxt.js, Angular, Svelte • Redux, Redux Toolkit, MobX, Vuex, Pinia, Context API • CSS3, SASS/SCSS, TailwindCSS, Styled-Components, Emotion, HTML/CSS • SPA, PWA (Offline support, push notifications) 🎯Backend Development: • Node.js (Express, NestJS, Fastify), Python (Django, Flask, FastAPI), PHP (Laravel) • RESTful APIs, GraphQL APIs, WebSockets & Real-Time APIs • Third-Party Integrations (Stripe, PayPal, CRM, Twilio, Sendbird, Google Analytics / GA4, Mailchimp / SendGrid, Google Maps API, Mapbox) • Multi-tenant SaaS, Microservices & Service-Oriented Architecture • Event-Driven Architecture: Queues and message brokers (RabbitMQ, Kafka, Pub/Sub) • Background Jobs & Scheduling: Celery, BullMQ, Sidekiq 🎯 Authentication & Security • Auth0 / Okta / Firebase Auth • OAuth2 / OpenID Connect • JWT – Token-based authentication 🎯Databases: • PostgreSQL, MongoDB, Redis, Firebase / Firestore, Neo4j • Elasticsearch / OpenSearch 🎯AI & LLM Integration: • GPT-4/4o, Claude, LLaMA, LangChain, RAG pipelines • Embeddings, fine-tuning, multi-agent systems • Vector databases (Pinecone, Weaviate, FAISS) 🎯DevOps & Infrastructure: • AWS (Amazon Web Services): EC2, ECS, EKS, Lambda, RDS, S3, CloudFront, Route 53, CloudWatch, Secrets Manager, IAM, DynamoDB, Aurora, Elastic Beanstalk • Google Cloud Platform (GCP): Compute Engine, Cloud Run, Cloud Functions, Cloud SQL, Firestore, BigQuery, Cloud Storage, Pub/Sub • Microsoft Azure: Virtual Machines, Azure Functions, Azure SQL, Blob Storage, Cosmos DB, App Service, Key Vault • Serverless Hosting: AWS Lambda, Google Cloud Functions, Azure Functions for scalable microservices • Traditional Hosting & VPS: Nginx, Apache, cPanel setups, managed WordPress hosting, dedicated servers • Containerization: Docker, Docker Compose • Orchestration: Kubernetes (EKS, GKE, AKS), Helm Charts, deployment pipelines • Version Control & Pipelines: Git, GitHub Actions, GitLab CI/CD, Bitbucket Pipelines, Jenkins • Infrastructure as Code (IaC): Terraform, AWS CloudFormation • Monitoring & Metrics: Prometheus, Grafana, CloudWatch, Datadog, New Relic • Centralized Logging: ELK Stack (Elasticsearch, Logstash, Kibana), OpenSearch, Sentry 🚀 Highlights of my SUCCESS STORIES: ✔ I developed Web, Chrome extension, Android/iOS apps for Coursology “AI Homework Helper,” with a user base of over 600,000 students ✔ I developed and implemented Web + Mobile apps for “Total Dental Healthcare” at 13 Bay Area locations. ✔ I worked with Keyfree Technologies Inc. and developed both hardware and software solutions that facilitate P2P rentals, fleet management, anti-theft, connected services, insurance integration. Why Work With Me? ✅ Proven Track Record; Delivered 50+ projects on time, with excellent client retention ✅ Clean Code & Best Practices; SOLID, DRY, Test-driven ✅ Fluent English communication and Agile Workflows 📩 Click Invite or DM me!