Technical Lead Test Engineer - Contract

JR United Kingdom; Cardiff; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading company is seeking a Technical Lead Test Engineer in Cardiff to oversee quality engineering strategies for mobile applications and APIs. This contract role requires collaboration with product teams to ensure high-quality standards, while also mentoring a team of engineers. Ideal candidates will have significant experience in mobile testing and a strong understanding of automation frameworks.

Qualifications

• 7+ years in Quality Engineering with experience in leading roles.
• Strong experience in mobile app testing, ideally with Flutter.
• Solid understanding of Java-based APIs and backend testing.

Responsibilities

• Drive the overall QE strategy for the mobile lab.
• Lead test planning and execution for mobile apps and APIs.
• Mentor a high-performing team of QE engineers.

Skills

Quality Engineering

Testing mobile apps

REST API automation

Modern testing practices

Team mentorship

Tools

Postman

JIRA

TestRail

Jenkins

Git

Job description

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Technical Lead Test Engineer - Contract, cardiff

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Client:

Salt

Location:

cardiff, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

Posted:

07.06.2025

Expiry Date:

22.07.2025

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Job Description:

Technical lead Test Engineer (Mobile, API) – Insurance - Hybrid – London 3 days a week

Duration: 6 months

Start: ASAP

My new client is looking for a Technical Lead Test Engineer to join the team on a contract basis. You will need to be in the office 3 days per week.

Key Responsibilities:

• Own and drive the overall QE strategy for the mobile lab.

• Collaborate closely with product managers, developers, and third-party providers to ensure quality across all touchpoints.

• Lead test planning, estimation, and execution across Flutter mobile apps and Java APIs.

• Define, implement, and evolve automation frameworks for mobile (Flutter) and backend (API) testing.

• Ensure seamless integration and robust validation of third-party APIs and SDKs.

• Establish and monitor quality metrics, defect leakage trends, and automation coverage.

• Foster a quality-first mindset within the team and across the development lifecycle.

• Mentor and grow a high-performing team of QE engineers.

• Drive continuous improvement in QE tools, processes, and best practices.

Must-Have Skills:

• 7+ years of experience in Quality Engineering, with at least 2 years in a lead role.

• Strong experience testing mobile apps – ideally Flutter or cross-platform frameworks.

• Solid understanding of Java-based APIs and backend testing.

• Proven experience with REST API automation tools (e.g., Postman, RestAssured).

• Experience with mobile automation frameworks (e.g., Appium, Flutter Driver, or integration with CI/CD).

• Working knowledge of tools like JIRA, TestRail, Jenkins, Git, etc.

• Deep understanding of modern testing practices including shift-left, CI/CD, mocking, and contract testing.

• Familiarity with testing third-party integrations via APIs and SDKs.

Nice-to-Have:

• Experience in performance and security testing for mobile apps and APIs.

• Prior experience working in a regulated industry like banking or insurance.

• Knowledge of monitoring tools for crash reporting and user analytics (e.g., Firebase, Sentry)