Case Fennia

The collaboration between Etlia and Fennia in modernizing data warehousing is the result of long-term and goal-oriented development work.

In recent years, Fennia has invested in building a centralized data warehouse as part of a broader digital transformation initiative. The objective is to transition from fragmented information systems to a unified data solution that enables efficient analytics, process automation, and improved business decision-making. Etlia’s experts have played a key role in the development work, bringing strong expertise in both data warehousing and business needs.

At the beginning of the project, operations were guided by a reactive backlog model, where business needs were prioritized without a comprehensive plan. As the number of tasks grew, the team had to be scaled, and data management development became a critical goal. Juha Järvi, Fennia’s Data Lead, was tasked with building a new operating model, shifting from backlog management to data warehouse development and remapping all data sources. Information can now be retrieved centrally from one location without separate ad hoc queries, saving resources.

“Data warehousing projects are intensive in the initial phase, and at Fennia, the need to increase the number of data engineers as projects progress has been recognized. Etlia has responded to this need by quickly providing skilled professionals who can be smoothly integrated without extensive onboarding. Etlia’s holistic approach supports Fennia’s vision of data and business management, and Etlia’s experienced data engineers add value by understanding the big picture of projects and working systematically.”

Clear goals for data warehouse development

The development of the data warehouse has clear goals: it must provide a single source of truth for key figures, identify data quality deficiencies, and ensure that data is available at the right time and place. Understanding of data quality has significantly improved, and as the project progresses, benefits related to customer experience and business processes have started to materialize. The data warehouse also supports targeted marketing and pricing automation, enhancing operational efficiency.

“The requirements are very high. Etlia has positioned itself as a partner whose experts can both develop data warehouses and grasp the big picture. This allowed discussions to start at a higher level instead of focusing on details that might lead to fragmented solutions and, at worst, increase ETL work.”

Juha Järvi
Data Lead, Fennia

The Importance of collaboration and challenging assumptions

The collaboration between Fennia and Etlia has played a crucial role in advancing the project. Etlia’s experts have brought deep business and technology expertise, enabling a structured approach to development. This has involved not only building the data warehouse but also enhancing team capabilities and deepening data management within the organization. Developers have adopted a more structured working method and strengthened their expertise, particularly in data modeling.

“Etlia’s experts do not just provide solutions but challenge the team to think and learn for themselves. Their expertise and long experience offer significant advantages, as they can quickly grasp the overall picture and find a common language with others, having worked on many similar projects.”

Juha Järvi
Data Lead

Diverse technological expertise and staying at the forefront of development

Etlia’s experts bring valuable technological know-how and fresh perspectives to the team. Etlia’s partnerships with multiple technology providers enable discussions about potentially beneficial new features in the technologies used by Fennia. This helps the team stay at the forefront of development and take advantage of new opportunities effectively. Etlia views matters from an internal perspective, while Juha examines the overall picture strategically from Fennia’s standpoint.

“Over the years, Etlia’s experts have evolved from being external resources to mentors who share their knowledge and help the team grow. The goal is to develop team members’ skills so that they become independent and competent data engineers. The collaboration with Etlia supports Juha in his work and drives Fennia’s data warehouse development determinedly towards its goals.”

Juha Järvi
Data Lead

Clearly visible benefits

Although the launch of the revamped data warehouse still requires some final touches, its benefits are already becoming evident. Data-driven management has taken a central role at Fennia, and data availability and quality have significantly improved. At the same time, the team has made significant progress, adopting a clearer way of working and deepening their expertise, particularly in data modeling. The centralized data warehouse will provide a strong foundation for future development, where data will serve business operations even more effectively.

“The collaboration between Etlia and Fennia has been excellent, and Fennia’s team has great confidence in your experts’ competence and guidance. You have consistently provided high-quality and experienced professionals.”

Juha Järvi
Data Lead

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