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Tesco

Senior Software Development Engineer (.Net/C#)

Tesco
United Kingdom · Full-time · Mid-Senior

About the role

The
payments service team are the heart of Tesco Technology, serving 28 million+
shoppers in the UK and abroad. We deliver HTTP services that reliably manage
payments at global scale, 24 hours a day every day. We also provide
capabilities that detect and prevent fraud and build upon innovative
technologies to reduce loss. 100M+ transactions and billions of events per day,
a billion pounds every week.

At
the core of our operation are the APIs that handle a variety of payment methods
including cash, card and gift card across stores, at our fuel stations and
online. We also support wallet behaviours, repeat payments, refunds and
identity checks.

As
a Senior Software Developer at Tesco, you are responsible for the entire
development and support process for a software programme. Your applications
make previously sophisticated tasks simple with the impact ranging from saving
time, effort or money to re-defining normal. As you might expect, the role
focuses on day-to-day code writing however, you'll also get to lead on design
and architecture as well as help mentor and develop those around you in the
team!

If
you like to work on high-impact business-critical systems, then this could be
the team for you!

The
stack; .NET/C#, Cassandra, Docker, HAProxy, Azure DevOps. TDD and a 'you build
it, you run it' DevOps approach are also key parts of our engineering culture.
Automation is a key area of focus for us. Our scale and workloads demand that
we continuously improve our approaches to testing and deployment.

You will be responsible for
• Using your in-depth knowledge of .Net and the tool ecosystem to develop and implement scalable frontend systems.• Producing test-driven features and demonstrating your familiarity with the TDD cycle.• Applying your understanding of software design principles to build well structured, maintainable systems.• Working effectively with product stakeholders to communicate and translate needs into product improvements.• Breaking down work so we can deliver value incrementally and manage risk on larger projects• Facilitating group discussions on system design and working with Product Managers to drive value.• Supporting production systems, resolving, and learning from incidents.• Sharing knowledge with the wider engineering community.• Mentoring and developing others around you.• Producing proof of concepts to evaluate new tools.
You will need





















• Experience using .Net/C# with an eagerness to take on new technologies.
• Experience with both SQL/NoSQL databases.
• Experience with cloud platform(s) (e.g. AWS, Azure, etc.)
• Experience of working in agile environments and TDD.
• Excellent interpersonal skills
• Experience with Ecommerce payment systems would be a nice to have but is not crucial.


Whats in it for you?
We’re all about the little helps. That’s why we make sure our Tesco colleague benefits package takes care of you – both in and out of work. Click Here to find out more! 
 


  • Annual bonus scheme of up to 20% of base salary 

  • Holiday starting at 25 days plus a personal day (plus Bank holidays) 

  • Private medical insurance 

  • 26 weeks maternity and adoption leave (after 1 years’ service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 4 weeks fully paid paternity leave 

  • Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing 



About Us
Our vision at Tesco is to become every customer's favourite way to shop, whether they are at home or out on the move. Our core purpose is ‘Serving our customers, communities and planet a little better every day’. Serving means more than a transactional relationship with our customers. It means acting as a responsible and sustainable business for all stakeholders, for the communities we are part of and for the planet. 
 
We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We’re proud to have been accredited Disability Confident Leader and we’re committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please click here. 
 
We’re a big business and we can offer a range of diverse full-time & part-time working patterns across our many business areas, which means that we can find something that works for you.  We work in a more blended pattern - combining office and remote working.  Our offices will continue to be where we connect, collaborate and innovate.  If you are applying internally, please speak to the Hiring Manager about how this can work for you - Everyone is welcome at Tesco. 

Key Skills

Ranked by relevance

devops tdd cassandra docker cloud aws
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Posted
Feb 06, 2026
Type
Full-time
Level
Mid-Senior
Location
London
Company
Tesco

Industries

Retail

Categories

Engineering Information Technology

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