Itsharkz

Expert React.js & Next.js Development Services

Building Fast, Scalable, and Dynamic Web Applications
Frontend developers

About

React.js is one of the most powerful libraries for building interactive web applications, and when combined with Next.js, it creates optimized, high-performing, and SEO-friendly solutions.
At ITSharkz, we specialize in crafting modern web applications using these technologies, ensuring speed, scalability, and a seamless user experience.
Speed and Performance:
React’s virtual DOM and Next.js’s server-side rendering minimize load times and improve performance.
SEO Optimization:
Next.js generates static HTML pages, making your site more visible to search engines.
Component-Based Architecture:
Reusable components in React allow for faster, modular development, reducing redundancy and boosting efficiency.
API Routing and Code-Splitting:
Next.js’s built-in API routes and code-splitting features ensure only the necessary parts of your application load, increasing efficiency.
Dynamic and Static Pages:
We optimise performance using static site generation (SSG) and server-side rendering (SSR) depending on the needs of your application.

Portfolio

We’ve delivered diverse projects using React.js and Next.js, from high-traffic e-commerce platforms to SaaS user interfaces and dashboards. Few examples:
Medicalib
Backend
Frontend
SEO
Medicalib: Transforming Healthcare Access in France
Discover project details
Joone
AWS
Backend
E-Commerce
Joone: Reinventing Subscription E-Commerce
Discover project details
Fizzup
App
AWS
PHP
FizzUp: Redefining Digital Fitness Solutions
Discover project details

Why Choose ITSharkz?

Expertise in the French Market
With over a decade of experience working exclusively with French companies, we know exactly what it takes to succeed.
End-to-End Solutions
From initial concept to final deployment, we don’t just provide developers—we deliver complete, results-driven web applications.
Full-Stack Capabilities
Whether it’s building sleek front-end interfaces or architecting robust back-end systems, our expertise covers the full development stack.
Proven Success
We’ve helped numerous French SMEs and Scaleups thrive with tailored web development solutions that drive measurable business outcomes.
Dedicated Support
From day one to post-launch, we’re fully committed to your success. Your goals are our goals, and we’ll be with you every step of the way.
Continuous Innovation
We stay ahead of the curve by integrating the latest technologies and best practices, ensuring your web applications are not only efficient today but scalable for the future.
Your project needs to be discussed?
Talk to Kacper – our Co-Founder
Discuss your project

Flexible Collaboration Models

Outsourced 
Product Development
From concept to launch, we handle the entire development process, ensuring a smooth and successful project.
Staffing 
(Dedicated Resources)
Need extra hands on deck? Our skilled developers integrate seamlessly into your in-house team, boosting your capabilities.
Ready to build your web application? Contact our React.js & Next.js experts for a free consultation.
Schedule a consultation today to explore how ITSharkz can help you thrive.

Cutting-Edge Technologies
at Your Service

At ITSharkz, we leverage the most advanced technologies to build solutions that meet today’s standards and prepare you for tomorrow’s challenges:

Frequently asked questions

Why choose React.js and Next.js for web development?

React.js offers unparalleled flexibility with its component-based architecture, while Next.js enhances React’s capabilities by providing server-side rendering, static site generation, and faster load times. Together, they deliver a powerful combination for building modern web applications.

What hosting platforms do you recommend for Next.js applications?

We recommend platforms like Vercel and AWS for deploying Next.js applications due to their seamless integration with the framework, built-in optimizations, and scalability features.

Can you help with both frontend and backend development?

Yes! We offer full-stack development services, utilizing React.js and Next.js for the frontend, and Node.js, Python, or PHP for backend systems.

How long does it take to develop a React.js/Next.js application?

Timelines vary based on the complexity of the project, but our agile approach ensures efficient, timely delivery. For smaller apps, we can typically deliver in 3-4 weeks.

Can you migrate existing applications to React.js or Next.js?

Absolutely. We are experienced in migrating existing applications from other frameworks to React.js or Next.js, ensuring improved performance, scalability, and modern UI/UX design.

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