From legacy labyrinth to modern marvel

Client

CV-Online is an internet recruitment company, established in 1996 in Estonia and extended to Latvia and Lithuania in 1999.

Technologies

ReactJS, NextJS, Java, Spring Boot, Kubernetes, Docker, Elasticsearch, Kibana

Project duration

2018-2021

Client challenge

The client’s core information system had limitations in flexibility and scalability due to monolithic architecture and a complex codebase. Database decay, including deficiencies in relations and duplicate data, further hindered the system’s efficiency. The goal was to replace the outdated system with a modern platform to enhance flexibility, scalability, and provide a foundation for business growth.

Solution at-a-glance

The solution involved replacing the entire core information system with a new platform built on modern technologies. The new architecture and technical stack were designed based on results from a business discovery phase. Legacy data was migrated to the new platform, necessitating careful consideration for data model compatibility. 

A phased approach was taken, with legacy and new systems coexisting during the development of the new minimum viable product. The new platform was designed using microservices, with three dedicated to legacy data, and data migration automated for efficiency.