CASE STUDY
Sainsbury's warehouse & fulfilment optimisation
How Bermola Consulting helped one of the UK's largest supermarket chains re-engineer a mission-critical digital platform to support its extensive grocery e-commerce services and nationwide fulfilment centres.
Overview
Sainsbury’s, one of the UK’s largest supermarket chains, partnered with Bermola Consulting to transform a legacy e-commerce platform that had become a critical bottleneck for online ordering and downstream warehouse operations. The objective was to re-engineer the digital backbone, ensuring that e-commerce, warehouse, and supply chain systems could scale effectively with demand.
The challenge
Re-engineering a high-volume retail platform
The legacy e-commerce and fulfilment platform created operational friction across the supply chain.
Hover over each challenge to learn more.
- Limited scalability: Inability to efficiently process the growing volume of online orders.
- Slow feature rollout: A monolithic architecture slowed updates and innovation.
- Complex maintenance: Rising technical debt consumed engineering resources.
- Operational strain: Inefficiencies in the digital layer directly affected warehouse throughput and fulfilment speed.
Limited scalability
The Problem
The legacy monolithic platform struggled to handle peak demand, leading to slow response times and order processing delays.
The Impact
This bottleneck directly impacted revenue, customer satisfaction, and created a poor user experience during high-traffic periods.
- Limited scalability
The Problem
The legacy monolithic platform struggled to handle peak demand, leading to slow response times and order processing delays.
The Impact
This bottleneck directly impacted revenue, customer satisfaction, and created a poor user experience during high-traffic periods.
- Slow feature rollout
- Complex maintenance
- Operational strain
Our approach
A strategy for true transformation
Our approach was an integrated strategy focused on modernising Sainsbury's food-to-order e-commerce and fulfilment ecosystem. We replaced the legacy platform with a modern, scalable architecture to support high-volume operations and enable rapid future growth.
Microservices architecture
Orchestrated a seamless transition from a monolithic platform to a scalable, microservices-based architecture using Node.js, PHP, and Python, ensuring uninterrupted service.
Modern frontend
Delivered a responsive user experience with a React/Redux frontend, featuring server-side rendering under HTTP/2 for optimal performance.
Container orchestration
Built a resilient and scalable infrastructure by transitioning to Kubernetes and Docker for simplified deployments and management.
Cloud-Native solutions
Leveraged AWS Lambda and SQS to build a highly scalable, event-driven system capable of handling high-volume operations.
Automated CI/CD pipelines
Implemented modern DevOps practices with GitHub and Jenkins to accelerate safe and reliable software releases.
Secure payments integration
Integrated multiple secure payment gateways, including Datacash, Mastercard, PayPal, Apple Pay, and Google Pay.
The impact
From operational bottleneck to strategic asset
The comprehensive re-engineering of the e-commerce and fulfilment platform converted a critical operational liability into a strategic asset, yielding significant improvements across both business and operational domains. By replacing the monolithic legacy system with a flexible, resilient, and scalable microservices architecture, we eliminated critical performance bottlenecks. This modernisation directly translated into tangible gains, including faster order processing, reduced system maintenance, and substantially improved uptime, allowing Sainsbury's to handle peak demand without compromising performance. This newfound operational agility and reliability improves customer satisfaction and loyalty and allows their engineering teams to focus on innovation, enabling the business to adapt quickly to market changes and solidify its leadership position in the competitive online grocery sector.
- Order processing
- 30% Faster
- Maintenance hours
- 40% Reduction
- System uptime
- Enhanced
- Inventory flow
- Real-Time
Technology highlights
Backend & services
Frontend
Infrastructure
Payments
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