testimonial
“Given the size and complexity of the processing, we were astonished that the replatformed system was processing requests within 3 months of the project start date.”
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WhoSatu Koskinen
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RoleCIO
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Company
project
overview
Arek Oy, Finland's critical pension infrastructure backbone serving all national pension providers, faced the challenge of modernizing their legacy mainframe systems that calculate pensions for every Finnish citizen.
Their monolithic system, built on decades of accumulated COBOL code totaling 22 million lines across 7,000 modules, required seamless migration to cloud infrastructure without disrupting the real-time pension calculations that millions of Finns depend on.
Implementation teams from Accenture, Tietoevry, and Heirloom embarked on an ambitious transformation to containerize and modernize their pension calculation engine while maintaining Finland's stringent data sovereignty and regulatory compliance requirements.
Their monolithic system, built on decades of accumulated COBOL code totaling 22 million lines across 7,000 modules, required seamless migration to cloud infrastructure without disrupting the real-time pension calculations that millions of Finns depend on.
Implementation teams from Accenture, Tietoevry, and Heirloom embarked on an ambitious transformation to containerize and modernize their pension calculation engine while maintaining Finland's stringent data sovereignty and regulatory compliance requirements.
outcomes
The migration delivered transformational results for Finland's pension ecosystem, establishing Arek as a modernization success story in the Nordic financial services sector.
The legacy mainframe applications were successfully modernized to run as cloud-native Spring Boot services on Google Anthos, achieving remarkable performance improvements with response times reduced to sub-600 milliseconds—enabling real-time pension queries for Finnish citizens.
The modernized system reduced mainframe MIPS consumption by 50% and delivered projected cost savings exceeding 80% while maintaining 24/7 availability for the nation's pension infrastructure.
This groundbreaking achievement positioned Arek to scale dynamically with Finland's evolving pension needs, eliminated costly annual mainframe expansions, and established a foundation for continued innovation in serving the retirement security of Finland's 5.5 million residents.
The legacy mainframe applications were successfully modernized to run as cloud-native Spring Boot services on Google Anthos, achieving remarkable performance improvements with response times reduced to sub-600 milliseconds—enabling real-time pension queries for Finnish citizens.
The modernized system reduced mainframe MIPS consumption by 50% and delivered projected cost savings exceeding 80% while maintaining 24/7 availability for the nation's pension infrastructure.
This groundbreaking achievement positioned Arek to scale dynamically with Finland's evolving pension needs, eliminated costly annual mainframe expansions, and established a foundation for continued innovation in serving the retirement security of Finland's 5.5 million residents.