Transforming California Systems with Cloud-Native CalCloud Migration

Key challenges

Legacy on-premises applications with tightly coupled architectures, limited documentation, and complex dependencies created significant modernization and migration challenges.

Stringent state compliance requirements demanded robust security controls, data sovereignty, auditability, and seamless integration with client systems, external APIs, and third-party platforms.

Tight delivery timelines required parallel execution of multiple workstreams, supported by rigorous automated testing and controlled migration processes to ensure zero data loss and business continuity.

Client in spotlight

A California state agency supporting critical public programs initiated a modernization effort to migrate legacy on-premises systems to CalCloud while meeting strict security and data governance requirements. Kellton was engaged under CMAS Contract 3-23-03-1011 to deliver the end-to-end cloud migration and modernization program.

Unlocking Digital success

Ideation

Kellton assembled a cross-functional project team covering every layer of the migration — cloud infrastructure, application development, automated QA, and program governance. The approach centered on a single point of accountability to client leadership, with developers, testers, and the project manager collaborating daily under a unified Agile delivery model from kickoff through go-live.

Our approach

Kellton modernized and migrated legacy applications to CalCloud using cloud-native architectures, microservices, and automated CI/CD pipelines. Comprehensive testing, controlled cutover processes, and continuous monitoring ensured a secure, reliable, and low-risk transition.

Outcomes

The engagement combined strong program governance, cloud engineering, quality assurance, and DevOps practices to ensure successful delivery. Applications were modernized into cloud-native microservices with automated CI/CD pipelines, while comprehensive test automation improved reliability and release quality. End-to-end monitoring, observability, and compliance controls provided operational visibility, audit readiness, and long-term platform stability.

Project outcomes

Successfully migrated all targeted applications to CalCloud with zero data loss, no service disruption, and full compliance with California state security and data governance requirements.

Established automated CI/CD pipelines and comprehensive test automation frameworks, enabling faster, more reliable releases with minimal manual intervention.

Delivered Infrastructure-as-Code templates and end-to-end observability capabilities, providing consistent environment provisioning, real-time monitoring, and audit readiness.

Replaced legacy infrastructure with a scalable, cloud-native operating environment, improving reliability, maintainability, and long-term operational efficiency.