Hire the Best Ext JS Specialists
in the United States

Hi! I'm Cuyler. 👋 I've built 100+ Chrome extensions, both big and small. I've worked with Mozilla, DoorDash, NYU, the US Navy, a variety of VC-funded and successful Silicon Valley startups, and numerous small businesses and individuals. I've been building extensions for about 10 years. For the last 4 of them, I’ve been the Head of Extension at Cloaked (where we placed as the Browser Extension of the Year in 2023) as well as the lead browser extension developer at Judy Security. Nothing is too big or too small to discuss; I’ve taken on successful freelance projects with budgets ranging anywhere from $50 to $50,000. I've built a number of end-to-end full-stack solutions, usually involving a Chrome Extension as the frontend interface. Lately, I’ve taken additional interest in AI / Machine Learning because I think it’s especially suitable for a lot of the generic things people want to use browser extensions for. This includes not only cloud-based LLM APIs like OpenAI’s ChatGPT or Anthropic’s Claude, but also on-device AI models via TensorflowJS. I charge a bit more than many other developers here; I’m more interested in working with people whose top priority is quality work. If you've got an idea for a browser extension (especially an AI-powered one!) and want to see it executed to perfection, drop me a line!

I am a certified AWS Developer with over 10 years of working experience with AWS Cloud, who specializes in server-less architectures such as ETL processes, serverless APIs, serverless websites. ETL processes: - various compute environments: from EMR, via Glue, Batch, to Lambda with focus to be config driven and as serverless as possible. - custom orchestration systems with Step Functions, Scheduled Events, On-demand, queueing and post processing - Python, PySpark, NodeJS (with Typescript) APIs: - as serverless as possible to reduce cost and development time, with ability to deploy whole API service as single Lambda function (NestJS, FastifyJS, ExpresJS, FastAPI, Flask) - Python, NodeJS (with Typescript) Serverless websites: - as serverless as possible for reports about system status, small intake forms, management tools, etc. - build whole websites with static generated content, server site rendering (NuxtJS), - Python, NodeJS (with Typescript) I prefer to use Serverless Framework as IaaC (infrastructure as a code) for deployment with a connection with GitHub Actions as a pipeline. Also, I have experience with and I am open to use other deployment tools such as: AWS CDK, SAM, Terraform, etc. I also have experience designing DynamoDB tables (one table design principle) and connecting them with Lambdas as data producers, and creating DynamoDB Streams with Lambdas as event processors (which could've been useful in your project). Let's talk about your project needs and use my 10 years of working experience with AWS. Tomasz

Hello, friends! I'm a Frontend Developer with 15+ years of experience crafting exceptional web applications. While I specialize in Vue 3, Astro, and Tailwindcss; my primary skill is turning ideas into products by combining experience, project management, and scalability. Need a developer to break ground in your startup? Look no further. Need a few tweaks made to your frontend? I'm ready. Have a bug that needs ironed out? I love a good challenge. Unsure where to begin and need some ideas? Help is here. Recent achievements: - Contributed to frontend architecture for Placekey.io using Vue 3 and TypeScript - Engineered a million-dollar digital freight tracking platform. - Designed and developed TornadoTrax, a comprehensive Full Stack tornado data visualization system for researchers, educational institutions, and hobbyists. Technical expertise: - Frontend: Vue.js, React, TypeScript, Astro - Backend: Node.js, Nest.js, Express - Database: MySQL, PostgreSQL, Firebase - Cloud: AWS, Vercel, Netlify - UI: TailwindCSS, Sass, Bootstrap, CSS Don't just take my word for it, though... "Matt joined our startup as our first developer. He was a pleasure to work with: intelligent, pleasant, engaged, and productive. He will be a strong addition to any team." - Paul Harapiak, CTO, DFN Freight Exchange "Matt is a very skilled and passionate front-end developer. He never gives up and delivers perfect solutions that are user friendly. Also he is very thoughtful person, so I was enjoyed working with him. Undoubtedly, he will be a valued developer to any team" - Jayden Hong, Senior Developer "Matthew delivered good work on this development project. He setup the foundation well for us to continue. I would recommend him for any NodeJS related work." - Pradeep Thomas, Datatech Solutions Let's make your testimonial the next one! Feel free to reach out any time and let me know how I can bring your vision to life.

Hello! I'm a full-stack web developer with over 10 years experience, ranging from creating a small script to enhance a site I use to developing comprehensive SaaS web applications. I take pride in writing code that is not only clean but also performant, adhering to best practices that ensure efficiency and maintainability. My approach to development centers on understanding client objectives and delivering results that exceed expectations. A few of my skills: - JavaScript, TypeScript, React, Redux, Tailwind, Material-UI, Bootstrap - Node.js, Supabase, Firebase What I can produce for you: - Websites and web apps - Chrome, Firefox, and Edge extensions (including Manifest V2 to Manifest V3 migrations) - Windows, macOS, and Linux desktop applications with Electron.js - Android and iOS apps with React Native

I bring hands-on experience, combining strong frontend development and browser extensions. My tech stack includes Node.js, React, Express.js, Bootstrap, MongoDB, JavaScript, HTML, CSS, and GIT. Specialized in building dynamic and user-friendly web applications, with a keen focus on design and usability. Successfully developed Chrome extensions to enhance functionality and user interactivity. Currently exploring React Native for a seamless transition into mobile app development.

Looking for a US-based Senior Engineer who delivers high-quality code and communicates professionally? I am a Senior Software Engineer with 15+ years of experience, specializing in turning your vision into a finished product. My "superpower" is that I am both a B.S. Computer Science graduate and a B.A. Communication graduate. I am not just a "coder"—I am a professional partner. You will receive clear, proactive, and daily updates to ensure your project is on track from start to finish. Core Expertise: 2D/3D Game Development: Expert in Three.js, p5.js, and WebGL for interactive browser games. Full-Stack Web Apps: Custom dashboards and business tools (React, Node.js, MongoDB, PHP). Browser Extensions: Custom Chrome/Firefox extensions for your specific workflow. Spreadsheet Automation: Custom Google Apps Script & Excel Macros. Let's build something great together.