Senior Software Development Engineer in Test

Oxford, Oxfordshire
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A Senior Software Development Engineer in Test (SDET) with expertise in building modern .NET automation frameworks (Playwright/xUnit/NUnit) will take ownership of automation framework design and engineering led test strategy for a pioneering technology company. Hybrid working and a competitive salary to C£60K.

Requirements for the Senior Software Development Engineer in Test / QA Engineer include:

* Proven experience working in a Senior QA / SDET / Test Automation Engineer role.

* Expertise in .NET / C# test automation framework development including Playwright, xUnit, NUnit.

* Experience testing RESTful APIs and distributed systems.

The successful Senior SDET / QA Engineer (.NET/Automation) will take responsibility for:

* The overall QA and test automation strategy across backend services, web applications and cloud infrastructure.

* Writing code to build automated testing frameworks and tools.

* Application, API and Cloud Testing.

* CI/CD and Delivery Enablement.

* Ensuring code quality

Job Info
CV-Library logo
Job Title:
Senior Software Development Engineer in Test
Company:
CV-Library
Location:
Oxford, Oxfordshire
Salary:
£45000 - £60000 Per annum Hybrid + Priv Healthcare + 25 DH
Posted:
Jan 19th 2026
Closes:
Feb 19th 2026
Sector:
IT
Contract:
Permanent
Hours:
Full Time
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