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Development and integration of customized software solutions.
A high-performance information system relies on applications that are adapted to your business and perfectly integrated. Standard software, which is often too generic, does not always cover your specific needs, and its interconnection with your other tools is rarely optimal.At IT Systèmes, we combine our know-how as a software publisher (creating customized business software) and as an integrator (interconnecting your existing systems). We take your business processes as our starting point, and design robust, scalable and secure solutions based on SOLID principles. We act as a software publisher, developing customized applications, and as an integrator, connecting your existing tools. This dual expertise enables us to design business-first solutions that are robust, interoperable and scalable.
145 customers put their trust in us
Editor / Integrator expertise
Customized, business-focused application development
We design software that accurately reflects your internal processes, rather than forcing you to adapt to a generic tool. We manage the backend as well as the front end, and master different languages (Java, ReactJS, Python, C#, C++, PHP, JavaScript...) to meet your specific use cases. Each project is managed according to the AGILE methodology, with short sprints (2 to 3 weeks), incremental deliveries and regular feedback. This guarantees a modular, continuously tested and scalable application, which adjusts to your needs throughout the project.
Multi-technology integration and interoperability
Rather than redeveloping everything, we facilitate the interconnection of your existing tools (ERP, CRM, EDM, SaaS platforms, databases). This integration, which we incorporate directly into the development of your customized solutions, enables you to capitalize on your investments, avoid duplication of functionality and simplify the implementation of new components. The result: lower costs, smoother day-to-day management and accelerated IS evolution.
Gradual modernization of existing applications
Your legacy software is often still at the heart of your business. We gradually upgrade them through refactoring, API encapsulation or targeted rewriting, to guarantee business continuity and compatibility with modern environments. This progressive approach avoids service interruptions and limits the risks of sudden replacement.
Robust, cloud-native architecture
We design your applications using modern architectures: microservices, containers, events and cloud managed services. This approach guarantees scalability, resilience and portability between environments (on-premise, hybrid cloud or multi-cloud). You'll have a technical foundation capable of supporting your sustainable growth.
Our expertise with
Publisher / Integrator
FAQ Editor / Integrator
What's the difference between an editor/integrator and a traditional software publisher?
A traditional software publisher designs a standard product for a broad market, covering generic needs but often requiring you to modify your processes in order to adopt it. Conversely, an editor/integrator like IT Systèmes develops software specifically designed for your business uses, and ensures seamless integration into your existing information system. This means you benefit from a single solution, tailored to your organization, connected to your existing tools (ERP, CRM, EDM, databases, SaaS) and designed to evolve in line with your needs.
What technologies do you master for development and integration?
We master all modern and legacy languages, frameworks and environments, enabling us to work on all types of projects, from backend and frontend development to integration and automation:
- Backend & system languages: Java, Kotlin, Python, C#, C++, PHP, PowerShell, Shell Script
- Frontend & mobile languages: JavaScript, TypeScript, Swift, HTML5/CSS3
- Frameworks & libraries: ReactJS, NextJS, VueJS
- Databases: SQL Server, Oracle, MySQL, PostgreSQL, MongoDB, NoSQL
- Integration & APIs: REST, GraphQL, SOAP, API Management, RPA via FlexFlow
- Cloud & SaaS ecosystems: Microsoft Azure / 365, AWS, Google Cloud, Oracle, Salesforce, SAP
This technological versatility enables us to select the best combination according to your business needs and constraints, rather than locking you into a single solution. It also guarantees the durability and scalability of your applications, ensuring their compatibility with current and future environments.
How long does it take to develop and integrate a custom solution?
The duration depends on the complexity of the project. A simple application can be delivered in 6 to 8 weeks, whereas a complex tool requiring several integrations (ERP, CRM, EDM, SaaS databases) can take several months. Thanks to our Agile methodology, we deliver usable intermediate versions at each sprint (2 to 3 weeks). This enables you to benefit rapidly from the first functionalities, to involve your users in the tests and to generate a progressive ROI from the very first phases.
How do you guarantee the security and compliance of your developments?
Security is integrated right from the first sprint, in a DevSecOps approach. In concrete terms, we integrate automated controls into our development pipelines:
- systematic flow encryption (TLS, HTTPS),
- strong authentication (MFA, SSO, Azure AD, OAuth2),
- centralized management of user access and rights,
- ongoing vulnerability scans and security tests,
- audit logs and full traceability;
Our software complies with current regulations: RGPD for personal data management and ISO 27001 for information systems security.
How do you integrate software that doesn't have an API?
Many legacy or business applications lack modern APIs. We use our FlexFlow platform, which enables us to automate exchanges via specific connectors or Robotic Process Automation (RPA). In concrete terms, this means we can simulate human actions (clicks, inputs, extractions) or develop ad hoc connectors to link these software applications to your IS. In this way, even your oldest tools become interoperable without having to be replaced.
How do you avoid technical debt in your development projects?
Technical debt is a major risk for any IT project. To avoid it, we rigorously apply the SOLID principles, which make code modular, testable and scalable. Each component is isolated, so it can be upgraded without impacting the whole. We also practice automated testing (unit, integration, end-to-end) and document each sprint. This approach guarantees high-quality, maintainable code capable of supporting future evolutions.
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