Full Stack QA Engineer

Miller Maxwell Ltd; City Of London; On-site; GBP 60,000 - 90,000; Full time

Job summary

Miller Maxwell Ltd. is seeking a Full Stack QA Engineer to join a front-to-back trading software team. You will work across manual and automation testing, shaping test strategies and owning quality across the full lifecycle of complex trading workflows.

This role requires strong hands-on testing, automation expertise with Playwright and TypeScript, and the ability to operate in Linux environments. You will collaborate with engineering and product teams in a fast-moving environment.

Qualifications

• Strong experience in both manual and automation testing.
• Solid knowledge of Playwright, TypeScript, and modern QA tooling.
• Comfortable working in Linux environments.
• Experience testing financial or trading systems is highly advantageous.
• Understanding of the trading lifecycle (order entry, execution, post-trade) is a bonus.
• Enjoys problem-solving, improving processes, and working in a fast-moving engineering culture.

Responsibilities

• Designing and executing test plans across front-end, back-end, and integration layers
• Building and maintaining automation frameworks using Playwright and TypeScript
• Testing on Linux environments and working with command-line tooling
• Validating trading workflows, order flows, and end-to-end lifecycle behaviour
• Collaborating with developers to improve test coverage, reliability, and performance
• Contributing to CI pipelines and quality-driven engineering practices

Skills

Manual testing

Automation testing

Problem-solving

Tools

Playwright

TypeScript

Linux

Job description

A front-to-back trading software vendor is growing its QA function and looking for a Full Stack QA Engineer who can work across both manual and automation testing. This is a great opportunity to join a team building high-performance trading technology used by clients across the financial markets.

You'll work closely with engineering, product, and operations teams to ensure the reliability and quality of complex trading workflows. The role blends hands-on exploratory testing with modern automation practices, giving you ownership across the full testing life cycle.

What you'll be working on:

• Designing and executing test plans across front-end, back-end, and integration layers
• Building and maintaining automation frameworks using Playwright and TypeScript
• Testing on Linux environments and working with command-line tooling
• Validating trading workflows, order flows, and end-to-end lifecycle behaviour
• Collaborating with developers to improve test coverage, reliability, and performance
• Contributing to CI pipelines and quality-driven engineering practices

What we're looking for:

• Strong experience in both manual and automation testing
• Solid knowledge of Playwright , TypeScript , and modern QA tooling
• Comfortable working in Linux environments
• Experience testing financial or trading systems is highly advantageous
• Understanding of the trading lifecycle (order entry, execution, post-trade) is a bonus
• Someone who enjoys problem-solving, improving processes, and working in a fast-moving engineering culture

If you're looking for a role where you can work across a modern tech stack, influence testing strategy, and contribute to software used in real-time financial environments, this is fantastic opportunity.