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I will be your expert frontend web developer
Guilherme S
About this gig
️ My Tech Stack & Expertise:
- Languages: HTML5, CSS3, JavaScript (ES6+), TypeScript
- Frameworks & Libraries: React.js, Next.js, Vue.js ande Angular.js
- Styling: Tailwind CSS, Bootstrap, Styled Components
- Integrations: REST APIs, Firebase, Supabase, Stripe payment gateway
- UI/UX Conversion: Figma to HTML/React, Adobe XD/PSD to responsive web
What You Will Get:
- 100% Pixel-Perfect and Clean Code (W3C validated)
- Fully Responsive Design (Flawless on Mobile, Tablet, and Desktop)
- Cross-Browser Compatibility (Chrome, Safari, Edge, Firefox)
- SEO and Speed Optimization (Core Web Vitals focused)
- Component-driven, reusable, and easy-to-maintain code structure
Why Choose Me?
- Quality First: I write code following the best industry practices.
- Excellent Communication: Smooth updates throughout the development process.
- On-Time Delivery: I value your schedule and project deadlines.
- Post-Delivery Support: Free documentation or deployment assistance (Vercel, Netlify, or your hosting).
️PLEASE NOTE: Every project is unique. To ensure the best results and accurate pricing, please send me a message BEFORE placing an order to discuss your project requirements, wireframes, or Figma desig
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Guilherme S
Guilherme S
FrontEnd Developer
- FromBrazil
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English, Portuguese
I am a Software Developer with over 4 years of experience in developing, maintaining, and evolving web applications. I have a solid background in implementing new features and integrating systems using JavaScript, TypeScript, React, Next and Angular, always focusing on performance and user experience.
My Portfolio
FAQ
What do you need from me to start the project?
To start, I will need you a clear description of the project requirements, and any specific assets (logos, branding guidelines, images, or text content) you want to include. If you don't have a design yet, please message me, and we can discuss the str
Do you provide backend development or database integration?
This Gig is strictly focused on Frontend Development (UI/UX layout, responsiveness, animations, and performance). However, I can easily integrate existing REST APIs, Firebase, Supabase, or third-party services (like Stripe or Mailchimp) into the frontend if needed. Feel free to reach out to discuss
Will the website be fully responsive and mobile-friendly?
Absolutely! Every website or web application I build is developed with a mobile-first approach. Your project will look flawless, load fast, and function perfectly across all devices, including smartphones, tablets, laptops, and large desktop screens.
Which technologies do you use for development?
I build modern frontends using HTML5, CSS3, JavaScript (ES6+), and TypeScript. Depending on your project’s scale and needs, I specialize in frameworks like React.js and Next.js, combined with utility-first styling tools like Tailwind CSS or Bootstrap to guarantee clean and high-performance
Do you develop multilingual websites or support internationalization (i18n)
Yes! If your application needs to support multiple languages (e.g., English, Spanish, Portuguese), I can architecture the frontend using modern internationalization practices (like react-i18n or Next.js localized routing). Please let me know in advance so we can structure the translation files corre
