This 2024 case study describes how Sempra, a major US energy company, modernized legacy applications and infrastructure for SoCalGas and SDG&E after facing widespread outages, unsupported licenses, scarce skills for legacy stacks (including ColdFusion/Lucee), and significant cybersecurity exposure such as an outdated SQL Server 2005 database. Brillio partnered with Sempra to refactor and re-architect apps, modernize SSO, mobile, and UI, standardize development using agile tools, and migrate to a PaaS cloud approach with shared APIs, including consolidation toward SAP ERP and SAP PaaS with integration to an AWS PaaS environment to reduce TCO. Reported outcomes include 100% reduction in known vulnerabilities, 70%+ unit test coverage, 25% less development effort, 4x UX improvement, 30% lower

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