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Hi, I'm Paolo Kos.

Transform your ideas into powerful, scalable web applications. As a Full-Stack Developer with 4+ years of experience, I specialize in creating modern websites, e-commerce platforms, and custom web solutions that drive business growth. Let's build something extraordinary together.

Paolo Kos profile

What clients say

"Paolo delivered exactly what I needed, in an extremely short timeframe. The communication was very easy, and there were no problems with the result delivery."

Franko K.

Upwork

Nov 21, 2025

Proven results

โšก
99%+

Performance improvement - reduced processing times from minutes to seconds

๐Ÿ‘ฅ
Thousands

Daily active users across managed projects

๐Ÿ’ณ
Multiple

Production projects with daily payment processing

๐Ÿš€
4+ Years

Professional experience in full-stack development

What I do?

Web development

I build responsive and user-friendly websites using modern technologies including React/Next.js, Supabase, and Sanity CMS. I also use the MEAN stack (MongoDB, Express.js, Angular, Node.js) professionally at my work. Whether you need a landing page, an e-commerce site, or a full-scale web application, I can make it happen.

Web design

I create visually stunning and intuitive user interfaces that convert visitors into customers. Using Figma and modern design principles, I craft pixel-perfect designs that combine aesthetic appeal with exceptional user experience, ensuring your brand leaves a lasting impression.

SEO

I boost your online visibility and drive organic traffic through strategic SEO optimization. From keyword research to technical SEO, I implement proven strategies that help your website rank higher on search engines and attract quality leads who are actively searching for your services.

Support & Maintenance

I keep your website running smoothly with proactive monitoring, regular updates, and timely security patches. My maintenance services ensure optimal performance, fast loading times, and protection against vulnerabilities, so you can focus on growing your business without technical worries.

Frequently Asked Questions

Project timelines vary depending on complexity and scope. A simple landing page typically takes 1-2 weeks, while a full web application can take 4-12 weeks. I provide detailed timelines after understanding your specific requirements and will keep you updated throughout the development process.

I offer flexible pricing based on project scope and requirements. For fixed-price projects, I provide detailed quotes after discussing your needs. For ongoing work, I offer hourly rates. Contact me with your project details, and I'll provide a customized estimate that fits your budget.

I include a reasonable number of revision rounds in all project quotes to ensure you're completely satisfied with the final result. Additional revisions beyond the initial scope can be discussed and accommodated. My goal is to deliver exactly what you envision.

My services include full-stack web development, responsive design, SEO optimization, testing, deployment, and documentation. I also provide ongoing support and maintenance options. Each project is tailored to your specific needs, and I'll clearly outline what's included in your project proposal.

I maintain clear and consistent communication throughout the project. I provide regular updates on progress, respond to messages within 24 hours, and am available for scheduled calls or video meetings when needed. You'll always know the status of your project.

Yes, I offer ongoing support and maintenance packages to keep your website running smoothly. This includes security updates, bug fixes, performance monitoring, and feature additions. I can customize a support plan that fits your needs and budget.

I specialize in modern web technologies including React, Next.js, Angular, Node.js, Express.js, MongoDB, and more. I use the MEAN stack (MongoDB, Express.js, Angular, Node.js) professionally at my work. I stay current with industry best practices and can recommend the best technology stack for your specific project needs.

Want to work?

Ready to bring your project to life? Let's discuss how I can help transform your vision into a powerful web solution. Reach out via email or connect with me on LinkedIn to start the conversation about your next project.

Hire Me on Upwork