Software Tester
2 weeks ago
Backend Senior Tester (Python / API Automation)
London (Hybrid – 2 days per week in office)
£370 per day (Contract)
About the Role
We're looking for an experienced
Backend Senior Tester
to join a dynamic engineering team in London. This is a hands-on individual contributor role, ideal for someone who takes full ownership of testing delivery and thrives in a fast-paced Agile environment.
You'll be responsible for designing, executing, and maintaining
API automation tests
using
Python and Pytest
, ensuring the reliability and performance of complex backend systems.
Key Responsibilities
- Lead backend testing efforts, taking full ownership of deliverables.
- Develop and maintain automated test scripts using
Python
and the
Pytest framework
. - Perform
API automation testing
— sending and validating API requests, responses, and data comparisons. - Use
Postman
for manual and exploratory API testing. - Collaborate closely with developers and product owners during
scrum calls
, providing clear updates and raising issues proactively. - Ensure high-quality standards and efficient release cycles through rigorous validation and reporting.
What You'll Bring
- 6–8 years of testing experience, ideally focused on backend and API automation.
- Strong hands-on proficiency with
Python
and
Pytest
. - Proven experience writing and executing API tests (requests, responses, comparisons).
- Experience using
Postman
for functional and exploratory testing. - Excellent communication skills and the confidence to lead discussions, raise queries, and clarify requirements in an Agile setup.
- Self-driven, detail-oriented, and comfortable working independently.
The Offer
- Contract:
£370/day (Inside IR35). - Location:
Hybrid – 2 days per week in the London office. - Environment:
Collaborative, Agile, and delivery-focused engineering culture.
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