Cloud‑based e‑commerce online booking platform

Modernizing an e‑commerce booking system: Cloud, microservices & enhanced UX

In the constantly evolving travel market, smooth user experience and high‑performance e‑commerce platforms are critical.

A major company in the tourism sector, looking to modernize its online booking system, engaged AVISTO, an ADVANS Group company, to support the technical and digital transformation of its platform.

The goal was to migrate a legacy system to a modern, scalable, and maintainable architecture capable of handling high traffic volumes while delivering a significantly improved user experience.

Challenges and vision

The existing platform faced several limitations:

• a monolithic architecture that was difficult to evolve,
• insufficient performance during peak loads,
• slow release and deployment processes,
• an inconsistent user experience across key journeys.

The client therefore aimed to deeply modernize its system in order to operate a platform that is:

• faster and more reliable,
• easier to maintain and extend,
• aligned with modern e‑commerce standards,
• fully leveraging Cloud technologies,
• and compatible with a more agile deployment rhythm (CI/CD).

To achieve these objectives, the client chose to migrate to a cloud‑native, service‑oriented architecture, providing a sustainable technical foundation for future evolution.

AVISTO’s contribution

AVISTO supported the client throughout the entire transformation cycle, mobilizing a multidisciplinary team of technical leaders, backend and frontend engineers, DevOps experts, and UX/UI specialists. This broad range of skills and experience enabled the project to be addressed from all perspectives.

Cloud migration & modern architecture

• Complete redesign of a legacy system into a cloud‑native architecture,
• Deployment on AWS orchestrated with Kubernetes,
• Implementation of decoupled services enabling agile scalability,
• Structuring of a scalable and maintainable architecture.

Frontend & backend development

Frontend: Next.js / ReactJS

• Hybrid SSR/ISR rendering for performance and SEO,
• Modernized, smoother, and more responsive user experience.

Backend : Java / Spring

• Robust services with increased modularity,
• Improved performance and maintainability.

Industrialization & DevOps

• Continuous integration and continuous deployment via GitLab CI/CD,
• Standardization of environments and DevOps pipelines,
• Quality monitoring with SonarQube,
• Automated technical documentation via Swagger.

UX/UI expertise

In addition to the technical scope, AVISTO’s UX/UI experts contributed by:

• analyzing and streamlining key user journeys,
• identifying friction points in collaboration with internal teams,
• bringing a user‑focused perspective to support the overall modernization.

Results

AVISTO’s involvement significantly improved the stability and scalability of the platform while noticeably reducing loading times.

Through full industrialization of the development lifecycle, a reliable and fast delivery pipeline was established, facilitating collaboration between technical teams and accelerating the release of new versions.

This modernization also delivered a smoother and more consistent user experience, ready to support new features.

Altogether, these actions laid the foundations for a durable architecture focused on performance and quality, providing the client with a robust platform aligned with modern e‑commerce standards.

Conclusion

This project illustrates AVISTO’s ability to deliver large‑scale technical transformations by combining Cloud expertise, DevOps, software development, and UX/UI.

Thanks to this holistic approach, AVISTO enabled the client to modernize its platform, improve operational efficiency, and deliver a user experience that meets the expectations of today’s travel market.

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