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Senior Software Development Engineer in Test

We are a technology focused retailer hiring a Senior SDET at our Milton Keynes office.

You’ll be working in a central test and performance engineering team responsible for the end to end integration testing of Sainsbury’s Argos’s business and customer flows.

It’s an exciting opportunity to join a team that are continuing to expand its automation capabilities across all areas of the Sainsbury’s Argos estate including customer facing channels, order & inventory management systems, and fulfilment applications. We’re doing this so that we can test and release at pace, delighting both our customers and business users.

Typical Technologies you’ll be using:

Java, Selenium, SoapUI, Javascript, Cucumber, Python, Docker, Jenkins, Git, Jira, Confluence, appropriate open source tools selected for the specific task – e.g. NGinX, Charles, Sikuli.

What you’ll be doing

Building efficient, practical and scalable automation solutions across multiple areas of our systems estate.

Creating elegant test frameworks and supporting code that make creation/maintenance of tests as quick as possible

Implementing holistic automation strategies, taking account of the interconnections and dependencies across multiple development teams.

Triaging test failures to ensure detailed and accurate defects are raised and appropriately assigned

Extending automation to include service provisioning, test data management, dashboarding and business process validation

Looking for opportunities to reutilise code built by development teams to reduce duplication.

Advising on the most appropriate technical solutions to tickets raised on our automation backlog,

Defining the technical and coding standards for other team members to adhere to.

Conducting technical reviews against frameworks and test suites built by other SDETs to ensure they meet agreed measures.

Coaching other team members in automation and engineering best practice.

We are looking for people with:


Experience on working on micro-services architectures and micro-services testing

An understanding of the importance of end to end integration testing.

Rest/JSON API endpoints

Agile Methodology


Jenkins / alternative build pipeline

Nice to have:


JMeter / Gatling

An eye for great customer service and delivery

Enjoy working on end-to-end stories in a multi-disciplinary team

Working environment:

Flexible approach to working hours, including ability to work from home when required. Casual dress-code. Close to Milton Keynes train station.

Key Benefits:
Generous performance-related Bonus scheme. Excellent pension. Private Healthcare. Sainsbury’s Group discounts (Sainsburys/Argos/Habitat). Technical or managerial paths of progression. Sharesave Scheme. Share Purchase Plan. Childcare Vouchers. Season ticket loan. Ability to purchase up to 5 extra days holiday per year. Very competitive salary.

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