Tesco has signed a $45 million (£27 million) contract with CA Technologies to implement IT management software across the group.

Tesco, the UK’s largest retailer, will use CA software to manage its networks, suppliers, mainframe and credit card transactions. The deal covers all of the Tesco group, including its supermarkets, its Tesco.com website, Tesco Bank and Tesco Mobile.

The company is implementing CA’s Service Operations Insight (formerly Spectrum Service Assurance), SysView Performance Management and Process Automation software.

The systems will be used by Tesco to manage its IT infrastructure and monitor processes across PCs, mainframes, blade servers, networks, credit card transactions and suppliers.

Tesco, which employs 472,000 staff across 14 countries, had been running numerous IT management systems but has moved to the single suite of CA systems in bid to save time and cut complexity.

Mike McNamara, chief information officer at Tesco, said: “Our systems infrastructure needs to work for our IT team in order to do their job for our customers, our colleagues and our suppliers. We rely on CA Technologies software to tame a very big, distributed, heterogeneous infrastructure.”

Tesco also uses CA ecoSoftware in order to help increase the efficiency and accuracy of carbon accounting, monitoring its global footprint across IT, stores, refrigeration, distribution, waste and sourcing.

Earlier this month, the company signed an eight year contract with Microsoft, covering desktop and data centre software to support its offices, stores and distribution centres.