Lead QA Engineer

Reflexivity; Greater London; On-site; GBP 90,000 - GBP 120,000; Full time

Job summary

A leading finance tech company in Greater London seeks a QA Lead to define and implement QA strategies across multiple squads working on AI-driven investment products. The ideal candidate will have over 5 years of QA experience, strong backend system knowledge, and the ability to collaborate effectively with engineers. This role is critical in ensuring speed does not compromise trust, focusing on improved test coverage and release confidence. Competitive salary of £90,000 to £120,000 with equity included.

Qualifications

• 5+ years of QA experience with leadership responsibility.
• Strong understanding of backend systems.
• Experience with fintech or data-heavy products.

Responsibilities

• Build and lead QA strategy across backend and AI systems.
• Define automated testing standards and tooling.
• Mentor QA engineers and raise standards.

Skills

QA leadership

Backend systems understanding

Collaboration with engineers

Startup experience

Fintech experience

Tools

Automated testing tools

Golang

Python

Job description

You believe quality is engineered, not tested in at the end.
You can challenge engineers without slowing them down.
You want to build QA systems that scale with product complexity.
If you only write test cases, this role is not for you.

The Role, In Plain English

You will lead QA across multiple squads building AI-driven investment products.
This role exists to ensure speed does not compromise trust.
You will define how quality works at Reflexivity.

What You’ll Be Responsible For

• Build and lead QA strategy across backend and AI systems
• Define automated testing standards and tooling
• Work closely with engineers to prevent regressions early
• Own release confidence and quality metrics
• Mentor QA engineers and raise standards

What “Good” Looks Like

3 months: Clear QA ownership and improved test coverage.
6 months: Fewer production issues and faster releases.
12 months: QA is a force multiplier, not a bottleneck.

Who You Are

• 5 plus years QA experience with leadership responsibility
• Startup experience on core products
• Strong understanding of backend systems
• Comfortable working with engineers daily
• Fintech or data-heavy product exposure

Nice-to-Haves

• Experience testing ML or AI systems
• Golang or Python familiarity

Compensation & Practicalities

£90,000 to £120,000, equity included, London in-office.

£90,000—£120,000 GBP