I have worked for a number of different clients in many different industries building intuitive and engaging websites. My goal is to build solid business relationships with clients as well as create modern and professional websites that engage visitors to convert into customers. I am a certified full-stack web developer with knowledge in Drupal/WordPress, BigCommerce/Shopify, and website performance. I'm fast in responding via UpWork messengers and emails. Software Experience: * CMS development - Drupal/WordPress/Shopify/BigCommerce/SquareSpace * Various CRMs - Pipedrive, Salesforce, Hubspot, Zoho * Unbounce/LeadPages/ClickFunnels * Mailchimp/Constant Contact/Zoho Campaigns/Infusionsoft * Google Ads/GTM/GA/Search Console * SEMRush/KWSearch/SpyFu/Moz (Keyword Research Tools) * Facebook Business Manager/Power Editor * Trello/Asana/Teamwork/Basecamp With my own server for staging if needed, and also with my own Envato account, you can get premium themes, plugins, and images for free as part of my membership. I am familiar with project managing tools in order to bring production not only on a higher quality level but in terms of faster delivery as well. I hope you will consider inviting me for an interview to learn more about my skills and how I can help you with your website today.

Most engineers want to build from a blank page. I do the harder, more valuable thing: I step into your existing SaaS product where the codebase already exists, the business logic matters, and real users depend on it. That's the work I've done again and again on Upwork: redesigning a client portal, enhancing a CRM, adding features to live applications, taking over and stabilizing inherited codebases, and supporting enterprise. NET systems in production. Clients keep me around because I understand the product first and write code that keeps growing after I'm gone. I have 10+ years across React, Next.js, TypeScript, Node.js, and C#/.NET, full stack from UI to API to database to deployment. I also build AI features into existing products OpenAI/LLM API integration, chatbots, and workflow automation so the AI actually fits your app instead of bolting on awkwardly. I can help you: Add features to an existing SaaS, CRM, portal, or dashboard Integrate AI/LLM capabilities into a product you already have Take over and stabilize an inherited or legacy codebase (React, Angular, .NET) Fix bugs, unstable workflows, and performance issues Build REST APIs, backend services, and third-party integrations (Stripe, CRMs, webhooks) Clients describe my work as collaborative, quality-focused, reliable, and easy to communicate with. If you have a product that needs to move forward carefully and steadily, that's exactly what I do. Core stack: React, Next.js, TypeScript, Node.js, C#/.NET, ASP.NET Core, PostgreSQL, SQL Server, REST APIs, AWS, OpenAI/LLM APIs.

If you're looking for a 𝐌𝐄𝐑𝐍 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 who thinks beyond shipping features and focuses on building software that continues to perform as your business grows, you're in the right place. Most of my work has been on production applications where 𝐫𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲, 𝐦𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐚𝐛𝐢𝐥𝐢𝐭𝐲, and 𝐬𝐜𝐚𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲 matter every day. I don't just ask, "Does it work?" I ask, "Will this still be easy to maintain six months from now?" That mindset influences every technical decision, from application architecture and database design to API development and frontend performance. As a 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 specializing in 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐄𝐱𝐩𝐫𝐞𝐬𝐬.𝐣𝐬, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭, 𝐚𝐧𝐝 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, I help startups, SaaS companies, and growing businesses build products that are fast, secure, and designed for long-term growth. 𝐈'𝐯𝐞 𝐜𝐨𝐧𝐭𝐫𝐢𝐛𝐮𝐭𝐞𝐝 𝐭𝐨 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠: • SaaS Platforms • Enterprise Applications • CRM & ERP Systems • Customer Portals • Internal Business Tools • Admin Dashboards • AI-Powered Applications • Real-Time Applications • Multi-Tenant Systems • Custom Business Software Before writing code, I spend time understanding the business problem. In many cases, the best solution isn't the most complex one, it's the one that's easier to maintain, scales efficiently, and delivers value sooner. My role isn't simply to build features; it's to help make technical decisions that continue paying off as your product evolves. 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡: • Custom MERN Stack Development • React.js & Next.js Applications • Node.js & Express.js Backend Development • REST API & GraphQL Development • Third-Party API Integration • AI/LLM • MongoDB & PostgreSQL Database Design • SaaS & CRM Development • Enterprise Web Applications • Authentication & Authorization (JWT, OAuth) • Performance Optimization & Code Refactoring • Cloud Deployment with AWS & Docker • Bug Fixing, Feature Development & Long-Term Maintenance I write clean, modular, and well-documented code with the next developer in mind. That means reusable components, clear project structure, meaningful naming, thorough error handling, and solutions that are easier to test, extend, and maintain over time. Whether I'm joining an existing codebase or building a product from the ground up, I prioritize communication just as much as code. You'll always know where the project stands, what decisions are being made, and why. Clear communication, realistic timelines, and dependable delivery are as important to me as technical quality. If you need a 𝐑𝐞𝐚𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐍𝐨𝐝𝐞.𝐣𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, or 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐌𝐄𝐑𝐍 𝐒𝐭𝐚𝐜𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫, who combines technical expertise with a practical understanding of business goals, I'd be glad to discuss your project. 𝐋𝐞𝐭'𝐬 𝐛𝐮𝐢𝐥𝐝 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐭𝐡𝐚𝐭'𝐬 𝐧𝐨𝐭 𝐨𝐧𝐥𝐲 𝐟𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐚𝐥 𝐭𝐨𝐝𝐚𝐲 𝐛𝐮𝐭 𝐚𝐥𝐬𝐨 𝐫𝐞𝐚𝐝𝐲 𝐟𝐨𝐫 𝐭𝐡𝐞 𝐜𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞𝐬 𝐨𝐟 𝐭𝐨𝐦𝐨𝐫𝐫𝐨𝐰.

Hello, thanks for reviewing my profile. ~10 years in web and application development. Experience with various languages, including but not limited to C++, C#, PHP, Java, JS, and Python. Experience with various hosting platforms and project management tools, including but not limited to AWS, Docker, Git and SSH. Extensive experience with HTTP REST APIs and OAuth / OAuth2 protocols.

I am a full-stack web developer with 9 years of experience in my field. I have built projects used by millions, I've led large teams, and I have made my clients millions of dollars in revenue from platforms I built and worked on. I can build anything you can imagine and I'm excited to help you build and grow your business through software! I specialize in: AI, Django, Wordpress, ReactJS, React Native, Node.js, and more. I can build large and complex systems by myself and I have plenty of those to show in my portfolio. Feel free to message me if you think I fit any of your projects!

Expert-Vetted Company with 100% Success Rate! ☑️ 10+ years of experience in the industry ☑️ Top Rated+ Freelancer on Upwork ☑️ Technology Expert ☑️ Software Development Expert ☑️ React, PHP, MySQL, HTML, CSS, Flutter, React Native, Java, Kotlin, Swift, .NET, C#, Deluge, Python Laravel, Angular, Node.Js, Vue.Js, ☑️ My Promise: To Always Deliver ☑️ 100% Job Success Rate ☑️ Top 1% on Upwork My team and I have built software products in partnership with Google, Dell, Napster, and US BANK Our agency can support any development project. There is no programming language that we do not support. We also do Zoho CRM and Zoho Creator development work. We're an Authorized Zoho Partner, listed on the Zoho Website We're quickly becoming to the go-to team for anything related to Blockchain, NFT's, Metaverse, Moralis, Solana etc. We remain up to date on all of the latest cutting edge things happening in technology. We're NOW positioning ourselves as the go-to organization for Ai, ChatGPT, DALL-E and ALL Machine Learning types of projects. No matter what is you want to create. We can Help You! We're here to provide Quality work at an Affordable Rate! So that everyone can focus on growing their businesses and leave the tech work to us. I'm US based with a team located all around the globe. Contact me today to discuss your next big project. -Paul Elliott

Hey there, I’m Senior AirTable Architect & Integration Specialist (Zapier, Make, Stacker, Twilio, Calendly, Typeform, eBay API, and more). Microsoft Certified Trainer. With over 25 years of custom development experience, I challenge the "no code" approach to solving business challenges efficiently and effectively. As a Microsoft Certified Trainer with a background in Excel, SharePoint, and MS SQL, I'm deeply familiar with spreadsheet systems and data management. I’ve worked as a Microsoft instructor for one of the biggest banks in the EU region. Now I lead educational events in the US to teach advanced AirTable techniques. NOTABLE SKILLS & ACHIEVEMENTS: - Developed a proprietary business process automation solution using Airtable engine. - Experienced in e-commerce integrations and omnichannel synchronization. - Adept at systems integration, with numerous CRM integrations completed for my own company. - Highly experienced with Zapier, Integromat (Make), and developing custom integrations within them (called apps). - Created DataStudio dashboards for sales and marketing business analysis. - Wide experience in messaging automation. I'm located in Palo Alto so communication will never be an issue. MORE ABOUT MY EXPERIENCE: I hold certifications in Excel, SharePoint, MS SQL, PowerShell, and Windows Server, in addition to my Microsoft Certified Trainer (MCT) credentials. With over 15 years of experience in no code development started with SharePoint, Infopath, PowerShell, MS SQL, and Windows Server administration, I've worked on various versions of SharePoint from 2003. My diverse background includes telecommunication, enterprise content management systems, business modeling software, and Windows Server administration. Now a proud founder of multiple startups and my own software development company (50+ employees, $2M+ revenue), I've been involved in numerous challenging projects, assisted renowned US startups (our clients raised $200M+ investments), and have experience in developing enterprise-level solutions. As a result, I'm highly business-oriented and committed to delivering exceptional results. Let's discuss how my expertise can help drive your business success!

I design and build custom platforms, high-converting websites, and web applications for governments, investment firms, and funded startups. Currently building the Cayman Islands National Resilience Scorecard, the country's first online decision-support platform, funded by the European Union through the Green Overseas (GO) Programme, implemented by Expertise France and IRMA. This is a national-scale web application serving multiple government ministries. I also have 10+ years helping commercial teams ship revenue-critical products, including teams backed by Coinbase Ventures, Sequoia, and Techstars that have collectively raised over $1B. Recent commercial work includes a boutique investment firm website ($7,500 engagement, 5-star review), a university web application, and conversion-optimized ecommerce stores. Whether you need a custom web application, a website redesign, an online store, or a platform that handles complex workflows, I bring product thinking, clean design, and senior engineering to every project. WHAT I DELIVER - - - - - - - - - - Website Design & Redesign I'm a website designer who builds clean, fast, fully responsive sites. Whether it's a brand new company website, a full redesign of an outdated site, or a high-converting landing page, I handle design and development end to end. Webflow Development: Sites built using Webflow and Finsweet's Client-First framework Ecommerce & Online Stores: Custom Shopify development, theme customization, and stores that convert Design-to-Code: Convert Figma, Adobe XD, or Sketch files into responsive websites SEO & Speed: Optimized sites that rank higher and load in under 2 seconds Landing Pages: Boost conversions for campaigns, product launches, and lead generation Custom Platforms & Web Applications Decision-support tools and dashboards for government and institutional clients Multi-stakeholder workflow platforms with complex user roles Data visualization and indicator-driven interfaces Booking systems, customer portals, and internal tools React/TypeScript applications with custom backends TECH STACK - - - - - - - - - - Development: HTML/CSS, JavaScript, Liquid (Shopify), React, TypeScript, Node.js Design: Figma, Adobe XD, Photoshop, InVision, Illustrator Platforms: Webflow (Client-First), Shopify, Squarespace Mobile: React Native (iOS and Android) CLIENT RESULTS - - - - - - - - - - "Chris did an outstanding job modernizing our Silicon Valley based management technology consulting firm's website. He used Webflow skillfully to create a clean, mobile friendly design that replaced our outdated site with a modern, mobile-friendly, and professional look. From rapid mockups to final delivery, Chris worked at a patient and deliberate pace; never rushed and always thoughtful. He is soft spoken in the best way: calm, clear, and responsive throughout. A pleasure to work with, and we highly recommend him to anyone looking for a web designer with strong design instincts and a collaborative approach!" "Chris delivered our new company website design and implementation under tight timelines and with excellent quality. I would hire him again for his design skills, organization, creative eye, and professional engagement." "Chris rebuilt our Webflow store, sales grew 50% in 6 months!" Recent Work: National Resilience Scorecard for the Cayman Islands Government (EU-funded, React/TypeScript) Custom web application for a university in Boston Webflow-based inventory tracker for a warehouse (reduced errors by 40%) Conversion-optimized landing page for a contractor (leads increased 120%) WHY WORK WITH ME - - - - - - - - - - 10+ years shipping products for governments, investment firms, and funded startups, from national platforms to high-converting ecommerce stores Techstars alum, 100% Job Success on Upwork, clients whose products have collectively raised over $1B Clear communication, scoped timelines, and a process built around getting to launch without surprises Ready to discuss your project? Book a quick call!

I build AI systems that hold up in production. LLM agents, multi-agent pipelines, RAG architectures, and the automation around them, engineered with the safety boundaries and test coverage that keep them reliable once real users depend on them. I am an AI engineer with an Bachlor in Generative AI from the University of Texas at Dallas and a prior background in production software and contact-center systems integration. Over the past year I shipped work across more than 30 repositories, spanning AI agents, RAG systems, and full-stack AI products, including open-source tools published to npm. My work is grounded in real engineering discipline: spec-first design, test-first implementation, and containerized deployment with CI/CD. What sets my AI work apart is that I treat the model as one component in a system, not the whole system. The LLM proposes, deterministic code decides. That is how I build agents that can take real action without acting dangerously. 💡 What I build ⬡ AI agents and multi-agent systems with CrewAI, AutoGen, LangGraph, and LangChain that coordinate real tasks end to end ⬡ RAG pipelines with LlamaIndex, FAISS, pgvector, and sentence embeddings that ground LLMs in your own knowledge base ⬡ LLM-in-the-loop systems with hard safety boundaries, where a deterministic rule engine authorizes every action the model proposes ⬡ MCP servers that expose your tools to Claude and other agents natively over JSON-RPC ⬡ Workflow automation with n8n, Zapier, and Playwright browser automation that runs unattended with real error handling and retries ⬡ Production APIs in FastAPI, Django, and Flask, and full-stack apps in React 19 and Next.js ⬡ Provider-agnostic LLM integration across OpenAI, Anthropic, Google, Groq, Mistral, and local Ollama models behind one interface 🛠️ Selected work orch, an open-source CLI published to npm that routes prompts across multiple AI coding agents through a single interface, with budget-aware selection learned from real quota and rate-limit failures A human-in-the-loop review service for AI-authored documents: a containerized HTTP API plus an MCP server exposing 20 review tools, deployed multi-user behind OAuth An LLM trading research bot on the Binance test network, where the model reasons over market data through read-only tools and a deterministic risk engine is the only path to an order, verified live and backed by roughly 470 tests A full job-application platform: a FastAPI agent service that scouts, scores, and tailors applications across six sources, with a provider-agnostic LLM layer and Playwright auto-apply, fronted by a Next.js dashboard An autonomous server-maintenance agent packaged in Docker, and a Chrome extension that fills web forms from your own documents using a pluggable local-or-cloud AI layer 🧠 Background and research Generative AI, University Texas at Dallas. My dissertation studies whether large language models actually know what they do not know, probing model calibration and hallucination at knowledge boundaries. I also write about LLM reliability on my engineering blog. Before that I spent years in production software and contact-center systems integration with tools like Cisco Finesse, ActiveMQ, and Jira automation, so I am comfortable both building greenfield AI products and working inside existing enterprise systems. 🛠️ Core stack Languages: Python, TypeScript, Go, JavaScript AI: LangChain, LangGraph, CrewAI, AutoGen, LlamaIndex, MCP, OpenAI API, Anthropic API, Gemini, Groq, Ollama, RAG, PyTorch, Hugging Face Backend: FastAPI, Django, Flask, NestJS, Node.js Frontend: React 19, Next.js, TypeScript, Tailwind Data: PostgreSQL, SQLite, FAISS, pgvector, Redis, Firebase Infrastructure: Docker, Docker Compose, GitHub Actions, CI/CD, Nginx, VPS deployment If you need an LLM agent, a multi-agent system, a RAG pipeline, or a full-stack AI product built by someone who cares whether it still works next month, send me a message and tell me what you are building. I will tell you honestly whether I am the right fit. Keywords: AI Engineer, LLM Developer, AI Agent Development, Multi-Agent Systems, RAG Systems, LangChain, LangGraph, CrewAI, AutoGen, LlamaIndex, MCP, Model Context Protocol, OpenAI API, Anthropic Claude, Python Developer, FastAPI, Django, Next.js, React, TypeScript, LLM Integration, Prompt Engineering, Vector Databases, Workflow Automation, Playwright, Generative AI, Machine Learning, Ollama, AI Automation

1. Game Development Unity Game Developer with 11 years of experience creating high-quality games, prototypes, and interactive experiences. Over the years, developed 100+ games and prototypes, helping clients turn ideas into playable, polished products quickly and efficiently. Specialized in Unity game development for 2D, 3D, mobile, PC, and multiplayer games. Whether you need a fast prototype, a complete game, gameplay systems, UI implementation, performance optimization, or multiplayer features. · Unity 2D & 3D Game Development · Gameplay Programming · Game UI/UX Design · 3D Modeling & Asset Integration · Multiplayer Development with Mirror and Photon · Prototyping and MVP Development · Bug Fixing and Performance Optimization · Unit Testing, Integration Testing, and System Testing Strong eye for design and always focus on clean gameplay, smooth user experience, stable performance, and high product quality. Wrote maintainable code and use proper testing methods to make sure the final product is reliable and ready for users. Let’s build something great together. 2. AI systems. Built AI agents, chatbots, and intelligent assistants for businesses of all sizes. My clients range from early-stage startups to established enterprises. - What I can build for you: Created custom AI solutions that solve real business problems. - Recent projects: · RAG-powered AI assistant for a telehealth platform · Call analysis system that evaluates conversations using 40+ metrics · Medical record processing agent using LLMs · Sales automation agent for real estate teams · AI assistant that helps nurses with patient care · Document analysis software for financial analysts (handles multiple file formats) · Voice-enabled AI avatars for medical training - What I offer: · Custom RAG systems built with your data · AI integration into your existing products · Strategic guidance on AI implementation · End-to-end development and deployment - Technical stack: · LLMs: OpenAI (GPT 3.5, GPT 4, Whisper AI), Anthropic (Claude), DeepSeek, open-source models (Mistral, Llama 3) · AI tools: LlamaIndex, Langchain, Prompt Engineering, Vector databases (Pinecone, Qdrant, Chroma DB), Agents (AutoGPT, Autogen) · Deployment: Azure, AWS, Docker, Web apps, Chatbot platforms Let's discuss your project and find the right AI solution for your business.