Custom web development

Adapted to your IS and your organization

We accompany you in the realization of your objectives (growth, reorganization, adaptation to the modifications of the environment…), by proposing you taylor-made development of websites, business applications, or an intranet.

We design and develop your IT solutions according to your needs and the development perspectives of your activity. With the ability to propose proprietary and open source tools, our teams have developed business expertise that allows us to effectively direct our responses to propose websites and business applications with high added value.

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La solution pour votre situation : Forfait d’infogérance ou régie à distance - développement logiciel 
Conseil et conception - Castelis

Consulting, design and web development

Innovative Digital Solutions

We design and develop innovative digital solutions for industrial and tertiary clients. We take great care to adapt our solutions to the needs of each market and organization. To do this, we develop custom software and business applications that simplify the daily lives of your employees, customers, partners and serve the performance of your organization.

As a devops operator, our ability to lead complex web projects from start to finish, both in France and abroad, allows us to support your digital transformation over the long term. Our objective is to adapt to the existing technical environment to offer customized and sustainable IT solutions for our customers.

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The best open-source technologies

to meet your company needs

The technical team is involved from the pre-sales stage, then in the project vision phase. This is essential for a good understanding of the needs and challenges of your custom development projects. There is no silo in our teams, everyone brings their expertise to design the most suitable websites and web applications.

Relying on the richness of the open-source ecosystem, our engineers recommend the best solutions by explaining their advantages and disadvantages and offer you a detailed costing. You thus become an actor of the technological choices that will accompany your company for several years.

For web and mobile web services, our developers are specialized in the PHP language via the Symfony framework for the back-end, or Nuxt JS for the front-end, and rely on our relational database experts such as MySQL or SQL Server.

For mobile services and applications, we rely on our developers specialized in native technologies, Swift for iOS, Kotlin and Java for Android. They also master the hybrid framework React Native, in order to offer you solutions developed with the most flexible and efficient technologies.

Our technologies

We are always looking for the best Open Source technologies.

Symfony

Symfony

An open source PHP framework for creating web applications, APIs, and web services.

Prestashop

Prestashop

An open source web application for creating online stores.

Wordpress

Wordpress

An Open Source website creation tool, written in PHP with a simple and intuitive content management system.

Angular

Angular

An Open Source framework written in JavaScript for creating web applications.

React

React

An Open Source JavaScript framework developed by Facebook to facilitate the creation of web applications.

Sass

Sass

A dynamic language for creating CSS cascading style sheets.

Web pack

Web pack

An Open Source JavaScript module bundler, with the ability to create static assets representing these modules.

Swift

Swift

A programming language created by Apple to develop iOS and Mac apps.

Android

Android

A mobile operating system developed by Google for smartphones, tablets, connected objects and computers.

Azure

Cloud computing services developed by Microsoft to create highly secure cloud solutions.

Hubspot

CRM platform with all the necessary tools for marketing, sales, customer service and content management.

Nos expertises pour vos projets de développement sur mesure

Business applications

Development, implementation and maintenance of business applications with different technologies

Intranet and Extranets

Development of your intranet / extranet adapted to your objectives (users & employees)

Website Factory

Improve your website governance, reduce costs with Sitecore technology

Mobile application

Mobile applications development on different technologies (IOS, Android...)

Corporate websites

Corporate websites, UX and UI, design & ergonomics, in accordance with your objectives

E-commerce and B2C

Development and redesign of websites, improvement of the experience of your visitors on your site

Equipe RH et informatique configurant une plateforme collaborative et formation des utilisateurs

The benefits of the cloud

For the hosting of your websites, business applications and intranets

Definitly Cloud-first, to ensure the availability of web applications, strengthen IS security and facilitate collaboration, we recommend installing your applications, websites and software on the Azure cloud. If necessary, our Global Cloud Operations teams also operate with AWS and GCP.

Depending on the specifics of each project and your company’s IS, we are also able to store your tools on premise or in hybrid.

They chose our digital know-how

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