SenseSys Private Limited
State Healthcare Agency Modernizes Legacy Systems for 2M Citizens
Public Sector
The Challenge
A state healthcare agency was managing benefits for 2 million citizens using a 30-year-old mainframe system. The system was fragile, impossible to update with new legislation, and the few people who knew how to maintain it were retiring. A failure would have been a humanitarian crisis.
What We Didn't Do
We didn't suggest a 'big bang' migration that would risk citizen benefits. We didn't build a new system that would just become the next legacy problem in 10 years.
The SenseSys Approach
We implemented a 'Strangler Fig' modernization pattern. We built a modern, API-first service layer on top of the mainframe, slowly migrating one functional module at a time. This allowed us to deliver new digital services to citizens immediately while gradually retiring the old code. We used vendor-neutral cloud technologies to ensure the state wasn't locked into a single provider for the next 30 years. We also focused heavily on data migration and validation at every step.
The Results
- Successfully migrated all 2M citizen records with 100% data integrity
- Reduced processing time for new benefit applications by 70%
- Saved the state $5M/year in mainframe maintenance costs
- Zero interruption to citizen services during the 24-month program
Public sector modernization is a marathon of risk management. Incremental delivery is the only way to modernize without a meltdown.
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