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Strategic Network Segregation: Achieving Regulatory Compliance in Banking

Architected the migration of 600+ multi-platform systems into segregated network zones to meet strict banking regulatory requirements.

Executive summary

Managed a critical infrastructure transformation for a major banking client to comply with new financial regulatory requirements regarding system isolation.

The challenge

The client was mandated by the bank regulator to divide all existing IT systems into independent network zones – Production, UAT and Development – separated by firewalls, to enhance security and data integrity.

The solution

As the Infrastructure Architect, I architected and managed the migration of approximately 600 systems across various platforms. This involved complex coordination of moving workloads without disrupting banking operations, while ensuring all new firewall communication rules were strictly enforced.

My role

  • Planned and executed the migration strategy for 600+ Linux, Unix and Windows-based systems.
  • Led a specialized team of domain infrastructure architects.
  • Collaborated with the customer’s network providers to design and implement new firewall communication rules.

The outcome

All systems were moved into separate production, UAT and development zones behind enforced firewall rules, satisfying the regulator’s isolation requirement without disrupting banking operations.