Mathias Grondziel

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web developer

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Mathias Grondziel

ReactJS and Wordpress Developer since 2022

profil

During my studies, I worked in various sectors such as Uber Eats, temp work, and as a salesperson in Angers and Tours, in northern France. Then, I moved to the south, 30 minutes from Spain, to pursue a one-year web development apprenticeship. At that time, I only knew HTML and CSS, but I quickly gained complete autonomy, creating pixel-perfect WordPress sites without themes or builders. I also learned to debug WordPress-related issues, manage hosting, and perform migrations. Thanks to this experience, I was able to start freelancing, which allowed me to begin learning ReactJS. With perseverance, I joined Radio Analyzer in Aalborg, Denmark, as a ReactJS front-end developer, where I actively contribute to developing innovative solutions for their SaaS products.

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2024 - 2025

Radio Analyzer

Experience illustration

SaaS product development at Radio Analyzer (internal software and client solutions) for the global radio industry. Creation of ReactJS interfaces with advanced charts, data virtualization, and complex filtering systems. Close collaboration with the backend team for API integration and continuous product improvement.

2023 - 2025

Freelance

2022 - 2023

Kori

2021 - 2022

Sales Associate

2018 - 2022

Uber Eats

They trusted me

26 reviews

djamelfilm

France

Excellent service provider, fast service and results beyond my expectations. I recommend!

djamelfilm

France

Second time working with him, and honestly everything is perfect.

letendre9

Canada

Incredible work, great communication and fixed my problem very quickly. Highly recommend!

souly_sam

Ivory Coast

Very good work, I recommend.

alexisalexis442

France

Mathias did a great job fixing the 503 errors on my site! He corrected the issues quickly and efficiently, ensuring the site works properly without any bugs. Mathias's proactive communication was a major asset.

mtlp_frag

France

Many thanks to Mathias for his availability and responsiveness! Professional and competent, he quickly and efficiently identified the source of the problem and proposed solutions. A major problem solved! I will work with him again on other ecommerce site maintenance issues.

mtlp_frag

France

Great! I called on Mathias's skills again. Serious, communicative and proactive, very pleasant to work with Mathias. Thank you very much!

alexisalexis442

France

Second order I place with Mathias, and it always goes extremely well, very good communication, speed and efficiency, and a result beyond my expectations. I recommend Mathias, you will not be disappointed with the result!

inos_architects

Switzerland

Good work! Mathias migrated our website to the new host very quickly. Fully recommend.

mtlp_frag

France

Another great result with Mathias! Always professional, proactive and 100% communicative, keeping you informed of progress, a pleasure!

octavewagner

France

I recommend

lbeplm

France

I needed Mathias's services a second time for creation and corrections, and if I needed a third time, I would hire him again without hesitation. Thanks to him for his professionalism, responsiveness, and ability to put himself in the client's shoes to understand their problem. I highly recommend him...

lonnylonn

France

Very professional and super efficient. He will accompany you to success. I recommend Mathias with my eyes closed

feloagency

France

Top professionalism, Matthias tries to find the bugs, he is very proactive! I recommend

alisonhgas

France

Top! super responsive and competent

charlo1013

France

Thank you Mathias Top

clemence_wordpr

France

I recommend Mathias who was able to respond very quickly to an urgent need on our part. Our Wordpress site is now functional ✅🤝

phileasfogg06

France

Perfect. Mathias is super competent, fast and very professional. He did in an hour what OVH didn't want to do!!! I recommend him!

coralieh31

France

Super professional, attentive, perfectionist, very good customer relationship

maximesiepiora

France

Mathias is very responsive, he easily adapts to the request I recommend 100%

topitambour

France

Mathias was very responsive and professional in fixing a responsive bug on our site, perfect communication, I recommend!

mtlp_frag

France

Excellent as usual. We have worked together several times: very attentive and always as expert, professional, fast & proactive. Thank you very much Mathias!

massay1008

France

Excellent service. Fast and efficient. Highly recommend...

lonnylonn

France

Many thanks to Mathias who unlocked my website thanks to his in-depth knowledge and expertise in IT maintenance and network infrastructure. I will not hesitate to call on him at the slightest problem. Thanks again

lbeplm

France

Thanks to Mathias for his responsiveness. He took the problem into account immediately. While I didn't know what to do with the various problems I was having with my website. Mathias is a good advisor and a caring person. I recommend his services without hesitation. Thank you Mathias. Best regards

lbeplm

France

I needed Mathias's services a second time for creation and corrections, and if I needed a third time, I would hire him again without hesitation. Thanks to him for his professionalism, responsiveness, and ability to put himself in the client's shoes to understand their problem. I highly recommend him...

Company Project

Development of various internal tools for Radio Analyzer SaaS platform, addition of major and minor features, UX/UI improvements, and bug fixes

Radio Analyzer

Hobbies

Travel

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Hiking

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Learning

France
Norway
Denmark
Cyprus
Finland
Sweden
Poland
France flag

France

Paris, Angers, Tours, Perpignan, etc...

Land of fine cuisine, art, and diverse landscapes from Alps to Riviera

Let's Work Together.

After sending your message, you will receive a response by email within 24 hours.