Hire the Best Front-End Developers
in the United States

I have worked as a software developer for 18 years and have been focused on web development for the past 11. I specialize in building and updating custom themes for BigCommerce, but am not limited to that platform. My goal is always to produce websites that look beautiful, work well across different browsers and device types, and meet basic accessibility standards.

📣 FREE technical consultation (details below) 🐻 Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). 💪💪💪 With experience as: • Full-Stack Team Lead at Camping World, a publicly traded company • Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp • Founder of Atini Studio, a high-performance software development agency With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution. 🌈🌈🌈 I’m the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products. ⌨️⌨️⌨️ What I help clients with: 📌 MVP development for startups 📌 Full-stack web applications 📌 Cross-platform mobile apps 📌 AI-powered features & integrations 📌 Clean implementation from Figma to production 📌 API integrations (Stripe, OpenAI, Google, Zoom, etc.) 📌 Performance optimization 📌 Technical architecture planning 📌 Product roadmap & scaling strategy We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality. 🧩 Complimentary Technical Consultation Not sure how to move forward with your product? I can help you clarify: • The right tech stack • MVP scope • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you create a clear and practical execution plan. 💻 Tech Stack: • Front End JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS • Back End Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL • API Integrations ChatGPT / OpenAI | Stripe | Google | Zoom | and more... • DevOps Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing Jest | Mocha | TDD • Developer Tools Git | npm | Webpack | Babel | Agile Methodology | Nginx • Design Adobe XD | Figma

Hi, I’m Mike, a Senior Frontend Engineer with 10+ years of experience building scalable, high-performance web applications using React, Next.js, and Angular. I work with SaaS companies, startups, and enterprise teams to turn designs into fast, maintainable, and user-friendly interfaces that scale with real business needs. Core Expertise & Technologies Frontend Development - JavaScript (ES6+), TypeScript, HTML5, CSS3 - React, Next.js, Angular, Gatsby - Component-driven architecture and design systems - Responsive and accessible UI development - Styling & Collaboration - Styled-components, CSS Modules, Tailwind, Bootstrap - Git, GitHub / GitLab, agile team workflows - Code Quality & Performance - I focus on clean, modular, and maintainable code with strong attention to performance, accessibility, and long-term scalability. - Test-Driven Development using Jest, Mocha, and Sinon - End-to-end testing with Selenium and Protractor - Cross-browser and cross-device validation - AI & LLM Integration Experience In addition to frontend development, I have hands-on experience integrating AI and LLM features into production web applications, including: - Chat and support interfaces using OpenAI / GPT APIs - Context-aware UIs for summarization, classification, and content generation - Secure prompt handling, token optimization, and function calling - AI-assisted workflows and internal tooling I focus on practical, secure, and performant AI integrations that improve real user experiences. What I Bring to the Table - Modern, scalable React and Next.js frontends - Pixel-perfect implementation from design specs - Performance and UX improvements - Clear communication and reliable delivery - Frontend development with optional AI integration expertise Clients looking for a senior React or Angular developer, especially with AI integration experience, will find my skill set well suited to modern web applications. Let’s connect and discuss how I can help bring your product to life. Mike Taatgen

Being a versatile Graphic & Web Designer and Front-End Developer passionate about creating visually stunning and user-friendly digital experiences. I specialize in blending creative design with clean, responsive code to deliver seamless UI/UX across websites and applications. With 10+ of experience, I’ve helped brands stand out through compelling visuals and intuitive interfaces. Whether you need a brand identity, website design, or front-end development, I can handle it all from concept to launch. My Skill Set Includes: 🎨 Graphic Design: Branding, Logos, Social Media Assets, UI Kits, Pitch Deck 🌐 Web Design: Responsive Layouts, UI/UX Design, Prototyping (Figma) 💻 Front-End Development: HTML, CSS, JavaScript, Responsive Coding ⚡ User-Centered Design Approach for Optimal Engagement 🚀 Smooth Collaboration from Design to Development Let’s create something impactful together - designs that don’t just look good but work perfectly. Ready to elevate your brand? Let’s chat!

⭐️ Web Accessibility Expert | ADA, WCAG 2.2 AA, Section 508 Aloha, I am a front-end developer with a passion for web accessibility. I have experience working as an ADA Coordinator at the University of Hawaiʻi, where I ensured all digital content met ADA and WCAG compliance. As a freelancer, I've worked with a wide range of organizations, including global corporations, federal, state, and local government agencies, and universities. Through Upwork, I help businesses and individuals worldwide create accessible, compliant, and user-friendly digital experiences. 💡 How I Can Help You: ✔ Website & App Accessibility Audits – Identify and resolve compliance issues ✔ Remediation Development – Fix accessibility barriers in code & design ✔ Document Remediation – PDFs, Forms, Word, Excel, PowerPoint, InDesign ✔ VPAT Audit & Certification – Detailed reports for compliance verification 🛠 My Skillset: 🔹 Front-End Development: HTML, CSS, JavaScript (Vanilla, React, TypeScript, Next.js, Angular, jQuery) 🔹 Platforms: WordPress, Shopify, Squarespace, BigCommerce, Magento, Wix 🔹 Screen Readers: NVDA, JAWS, VoiceOver, Google TalkBack 🔹 Compliance Standards: WCAG (A, AA, AAA), ADA / Section 508 / HHS (US), EN 301 549 (EU), PDF/UA 📌 Why Work With Me? 🛡 Experience Across Industries: Extensive experience collaborating with corporations, government agencies, and educational institutions. 💡 Expert in Web Accessibility: Proven track record in compliance & remediation 🛠 Hands-On Approach: I apply real-world experience, not just theory, to create practical and effective solutions. ❤️ Genuinely Committed: I truly believe in making the web accessible for everyone, and that commitment drives every aspect of my work. If you need help making your website, app, or digital documents more accessible, I’d love to work with you. Mahalo (thank you)! 🌺

Nearly twenty years ago, I began my career in graphic design, and over the past decade, I've broadened my skill set to include development. I’ve had the privilege of working with a wide range of organizations from small businesses to large corporations. For the past two years, I’ve enjoyed the flexibility of freelancing, and since last year, I’ve been helping clients on Upwork by bringing their visions to life. 🎯𝐇𝐞𝐫𝐞’𝐬 𝐚 𝐬𝐧𝐚𝐩𝐬𝐡𝐨𝐭 𝐨𝐟 𝐭𝐡𝐞 𝐬𝐤𝐢𝐥𝐥𝐬 𝐈 𝐛𝐫𝐢𝐧𝐠 𝐭𝐨 𝐭𝐡𝐞 𝐭𝐚𝐛𝐥𝐞: 💻 CMS Development ( WordPress, Shopify, BigCommerce, Wix & Squarespace ) ✒️ Graphic Designing ( Adobe Photoshop, Adobe Illustrator, Adobe XD, Figma & CorelDRAW ) 𝐁𝐫𝐢𝐞𝐟 𝐎𝐯𝐞𝐫𝐯𝐢𝐞𝐰 𝐨𝐟 𝐂𝐨𝐧𝐭𝐞𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦 (𝐂𝐌𝐒) 𝐒𝐤𝐢𝐥𝐥𝐬🌟 🛒 E-Commerce Essentials: • Shopify – Oberlo (Dropshipping) | Klaviyo (Email Marketing) | Yotpo (Reviews) | Privy (Pop-Ups) | ReCharge (Subscriptions) • BigCommerce – Shogun (Page Builder) | JustUno (Conversions) | Printful (Print-On-Demand) | Smile.io (Loyalty Programs) • WordPress (WooCommerce) – WooCommerce Subscriptions | CartFlows (Sales Funnels) | Easy Digital Downloads | Stripe/PayPal Integration 📚 Informative Website Essentials: • Wix – Wix Blog | Wix Forms | Wix Chat (Live Support) • Squarespace – Blogging & Portfolio Tools | Scheduling & Member Areas | Unfold (Visual Content) • WordPress – Elementor | Divi Builder | Oxygen | WPBakery | Genesis Framework | LMS | Amelia | Content Management & Membership Plugins 🚀 Site Customization & Design: • Wix – Velo by Wix (Advanced Customization) | Wix Events • Squarespace – Acuity Scheduling (Appointments) | Member Areas (Membership) • WordPress – Elementor | Theme Customization | Genesis Framework | Custom Post Types for Informative Sites 📈 Marketing, Analytics & SEO Optimization: • Shopify & BigCommerce – Google Analytics | Facebook Pixel | SEO Manager | Hotjar (User Insights) • Wix & Squarespace – SEO Wiz (Wix) | Campaign Monitor (Emails) | Google Analytics | Content Marketing Tools • WordPress – Yoast SEO | Rank Math | MonsterInsights (Analytics) | SEOPress | Schema Markup Plugins 🔒 Security & Maintenance: • All Platforms – SSL Certificate Integration | Site Backup (Rewind, BlogVault) | Malware Scanning • WordPress – Wordfence Security | Sucuri | UpdraftPlus Backup | WP Rocket (Caching) 💳 Payments & Checkout: • Shopify & BigCommerce – PayPal | Stripe | Afterpay | Apple Pay • Wix & Squarespace – Square Payments | Stripe | PayPal • WordPress – WooCommerce Payments | Stripe | Authorize.Net | PayPal etc. If my skills align with what you’re looking for, feel free to reach out using the buttons at the top right of this page. Let’s connect and chat to discuss your project! Cheers! 🔑𝐊𝐄𝐘𝐖𝐎𝐑𝐃𝐒: UI/UX, UI Design, UX design, User Interface Design, web design, Graphic design, Landing Pages Design, User Experience Design, Web & Mobile Design, Responsive Web Design, UI Research, User Flow, Android and iOS app design, mobile design, Android app design, Graphics & UI Design, website wireframing, eCommerce web design, Google Material Design, Clickable prototype, iOS and Android guideline, WordPress design, Website Wireframing, Animations creation, Branding, User Interface, , Photoshop, iOS app design, prototype design, responsive web design, Webdesign, web design, Android guidelines, logo design, Material Design, eCommerce app design, Logo Design, icon design, website design, Principle, Adobe Photoshop, GUI design, User interface designs, Figma, UX Research, iOS guidelines, Adobe Photoshop, Animation UI, wireframes design, InVision, Design, UX/UI, UX, UI, User Interface Design, Landing Page Design, Responsive Design, Graphics & UI Design, Website, User Experience Design, UX Research, Material Design, Export Assets from Sketch, UI Research, iPhone, App, Landing Page, Website, Illustrator, Long term, Graphic Design, Design Guru, Android Design, Web Design, iPhone Design, Design Expert, iPad Design, Creation, CSS3, Hire, Webflow, App Design, Usability, Update, Graphics, Branding, Logotype, Desktop, HTML5, User Experience, Android, Management, Sketch, Search, Team Leader, Design Thinking, Adobe, Adobe Illustrator, Visual Design, Google, WordPress, Application design, Job, iOS, Material Design, Solutions, platform design, UI/UX Design, Head of Design, Advertising, Testing, Sketch, Logo, Web-design, Web Design, Design Thinking, Experienced, Infographics design, Identity, Graphic Design, Promo, iOS App Design, Identity, Guidelines, Responsive, User experience design, Digital, Website Prototyping,Agency, Art Director,Effective, Designer, UI, Wireframing, UI/UX Design, Creative, Adaptive, Web & Mobile Design, Responsive Design, Productive, Landing, Interaction Design, Redesign, Wireframe, UX, Mobile Design, Mock-up, Mobile UX Design.