Hi,

I'm

Mathieu Lopes

Software Engineer

Building innovative solutions with modern technologies

Get in Touch View Skills
Mathieu's profile picture

About Me

I'm a passionate software engineer with expertise in building modern web applications. With a strong foundation in both frontend and backend development, I help businesses transform their ideas into reality through clean, efficient, and scalable code.

My approach combines technical excellence with a deep understanding of user experience, ensuring that every project delivers both functionality and delight.

As a Senior Software Engineer at Comelse and Founder of Mathieu42 with over 10 years of experience, I specialize in Laravel, Next.js, PHP, and JavaScript. I'm passionate about building high-performance digital solutions, transforming ideas into robust web applications, custom software, and efficient APIs. My expertise also covers HTML, CSS, WordPress, optimization (server, SEO), automation, and AI solutions.

At Mathieu42, we offer a comprehensive range of services, from web/mobile development to maintenance, technical consulting, and digital product sales. We are fully covered by professional liability insurance. Autonomous, rigorous, and results-oriented, I am committed to delivering clean, optimized code. I enjoy technical challenges and positive collaboration, and I'm available for both short and long-term projects.

As a self-motivated independent developer, I specialize in building web applications using Laravel, Next.js, and modern JavaScript technologies.

I am committed to delivering high-quality web applications, services, and tools.

I am eager to further develop my expertise in programming, web development, and management skills.

My Skills

Next.js

Expert

Laravel

Expert

HTML/JS/CSS

Expert

PHP

Expert

React Native

Advanced

Node.js

Advanced

TypeScript

Advanced

SQL

Advanced

Git

Advanced

WordPress

Advanced

API Rest

Advanced

SEO

Advanced

Python

Intermediate

Go

Intermediate

Servers

Intermediate

Algorithms

Expert

Pricing Approach

VAT not applicable under article 293 B of the French General Tax Code (CGI).

We can also define project-based packages or time-based (regie) contracts together, tailored to your specific needs.

The final pricing for your project is adjusted based on three key factors:

  1. Technical complexity of the project – From light maintenance to innovative architectures, each project requires a different level of expertise and engineering.
  2. Type of engagement – Whether it's a one-off mission or a long-term partnership.
  3. Collaboration duration – A longer collaboration allows for better integration and optimized pricing.

🔍 This transparent approach is designed to help you better anticipate the investment required for your project.

Please note that this is an indicative framework. For a tailored proposal and personalized quote, .

🤝 Long-term Partnership
🔄 Ongoing Collaboration
⚡️ One-off Mission
🥉 Standard
€410
€450
€500
🥈 Advanced
€450
€500
€550
🥇 Expert
€500
€600
€750

💡 Concrete Examples

  • UI/UX redesign without architecture changes —> 🥉 Standard Project
  • Business app with API integration —> 🥈 Advanced Project
  • Trading platform with machine learning —> 🥇 Expert Project

Senior Expertise: Your Project in Good Hands

Beyond the code, choosing a full-stack developer with 10 years of experience means investing in performance, reliability, and peace of mind for your projects.

⚡

Seamless Onboarding

Autonomous from Day One – Thanks to my seniority, I integrate quickly into your projects. I solve problems faster, avoid common pitfalls, and deliver high-quality work on optimized timelines — turning your investment into both time and cost savings.

🧠

Rapid Technical Problem-Solving

Fast Resolution of Technical Challenges – My career has given me a deep understanding of both technical and business-related issues. I've handled a wide range of use cases, enabling me to anticipate challenges and offer solutions that are both proven and innovative.

✨

Modern Tech Stacks

As an expert in Next.js, Laravel, and other modern technologies, I build robust, high-performance, and scalable applications, tailored to your needs.

🔧

Robust & Maintainable Code

My commitment to code quality ensures reliable, maintainable, and high-performing applications in the long run — reducing future maintenance costs and minimizing the risk of bugs or downtime.

🚀

Autonomy & Proactivity

I work independently, manage my tasks efficiently, and take initiative to keep the project moving forward. My proactive approach frees you from the need for constant oversight, so you can stay focused on your core business.

🎯

Product Strategy Vision

Beyond technical development, I bring a product-oriented mindset — taking into account user experience (UX) and your business goals. I offer guidance on architecture and technical choices that help maximize your product's impact.

🔄

Flexibility & Adaptability

As a freelancer, I adapt to your specific needs — whether it's a one-off task, strategic reinforcement, or a long-term partnership — offering flexibility that traditional hiring can't always provide.

🛡️

Professional Guarantees

Transparent communication, clear contracts, commitment to deadlines, and regular reporting — all ensure a solid and reliable partnership. For complete peace of mind, my work is covered by Professional Liability Insurance.

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