# Legacy pharma SaaS re-platformed to cloud-native

A monolithic legacy field-sales SaaS platform needed to move to cloud-native. Incremental migration to containerised services, with mobile-first tools for reps and GDPR-compliant data handling.

- **Sector**: Pharma
- **Region**: Global
- **Disciplines**: Modernization · Cloud
- **Practices**: [Legacy modernization](https://www.winapps.co.in/services/legacy-modernization/), [Cloud & platform](https://www.winapps.co.in/services/cloud-platform/)
- **Client**: Under NDA. References available on a call.

## The challenge

A global pharma company's field-sales platform was a legacy monolithic SaaS application that needed to move to a cloud-native architecture.

## Our approach

We migrated the platform incrementally to containerised services on Kubernetes with PostgreSQL, rather than attempting a big-bang rewrite. Field reps got mobile-first tools, and personal data is handled in line with GDPR.

## Architecture

- **Users**: Mobile-first tools for field reps
- **Services**: Containerised microservices, Legacy monolith (retired step by step)
- **Platform**: Kubernetes
- **Data**: PostgreSQL, GDPR-compliant data handling

Illustrative architecture, simplified to protect client confidentiality.

## Results

Outcome details for this engagement are shared under NDA. We're happy to walk through results and put you in touch with a reference on a call.

## Stack

- Microservices
- Kubernetes
- PostgreSQL

Next case study: [AI visual quality inspection on the production line](https://www.winapps.co.in/work/ai-visual-inspection/) ([Markdown](https://www.winapps.co.in/work/ai-visual-inspection.md))

## Facing something similar?

A senior engineer, not a salesperson, replies within one business day. NDA available before any detailed discussion.

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