Infosys modernizes giant Student Information System with Azure migration

March 19, 2026

Managing student and teacher data at scale is a high-stakes challenge. Modernizing a Student Information System (SIS) that tracks daily attendance, enrollment, academic records, scheduling, and other student data requires deep technical expertise, a structured approach to cloud migration, and a strong foundation in security and governance.

Infosys, a Microsoft partner for over 25 years, has long been a leader in these secure modernizations and cloud transformations. Infosys holds Solutions Partner designations spanning Data and AI, Digital and App Innovation, Infrastructure, Modern Work, and Security. As a leading adopter of GitHub Copilot and Microsoft 365 Copilot, Infosys has delivered enterprise-scale transformations.

Leveraging Infosys Cobalt, a proprietary set of solutions for cloud transformation, and Infosys Topaz, an AI-first suite of offerings, Infosys has been able to support multiple large enterprises in their AI-first, cloud-first transformation journeys. With deep expertise across Microsoft Azure, GitHub Copilot, and Microsoft 365, Infosys has built a reputation for delivering scalable, secure, and cost-effective solutions.

This experience and collaborative history are part of what made Infosys a 2025 Microsoft Partner of the Year for Azure – Secure Migration and Modernization. It’s also what made the company so successful when they were tapped to stabilize, modernize, and migrate the SIS for one of the largest districts in the country to Azure—creating one of the largest SIS cloud deployments for any US school district in the process.

Stabilizing and scaling a strained system

Each morning, teachers and students generate a massive amount of data for Infosys’s client, with 30,000 teachers taking attendance for more than half a million students. The district’s legacy SIS was creating intense traffic spikes and exposing the limits of their infrastructure.

“There were 1,400-plus schools, 500,000 students,” said Sambit Mohanty, AVP Education Practice at Infosys. “You can imagine the traffic between 7:00 AM and 10:00 AM.”

A phased approach to modernization

Infosys approached the modernization effort with a clear plan and a steady hand. They began by identifying and addressing the most immediate pain points, including performance issues, memory leaks, and database bottlenecks that had caused near-weekly disruptions. Within six months, they stabilized the system enough to support a broader transformation. Rather than attempting a full-scale overhaul, Infosys focused on the areas that mattered most.

“We looked at which modules were generating the highest traffic,” said Mohanty. “Attendance, scheduling, and enrollment made up only 30% of the code base, but 70 to 80% of the traffic was hitting those modules.” Refactoring those modules into modular services using .NET Core allowed the team to dramatically improve performance and reduce compute requirements—laying the groundwork for a scalable, cloud-native future.

Because the district is entrusted with protecting so much personally identifiable information (PII) for students, families, and staff, Infosys prioritized security from the beginning. In partnership with district leadership, the team implemented Microsoft Defender for Cloud, Azure Arc, and native Azure security controls such as identity and network protections, encryption, and key vaults. Infosys also worked closely with Microsoft solution architects, leveraging Infosys Cobalt offerings to align with the Cloud Adoption Framework and Well-Architected Framework, and used Azure Migrate to size infrastructure and model cost optimizations.

In addition to the technical deployment, Infosys focused on guiding district staff through a change management process. Infosys conducted multiple stakeholder sessions to explain the migration roadmap, built a business case, and even developed a minified SIS in Azure as a proof of concept to ease concerns.

“That gave the district the confidence to move forward,” said Jaydip Sanyal, AVP & Group Practice Engagement Manager – Modernization Practice at Infosys. “We had to put together the core landing zone structure and governance, and at the same time help stakeholders understand what we were trying to convey.”

Once the team had a more solid foundation in place, the next phase was a full migration to Microsoft Azure. The team optimized the infrastructure, reducing the number of servers from 300 to 200, and ensured the platform was secure, scalable, and cloud native. The result was one of the largest SIS deployments in the cloud for any US school district, built with repeatable templates and reusable FinOps dashboards.