Full-Stack QA Engineer

QA Full Stack Tester

Overview

🏢 Company | Financial markets technology, regulated environment

👤 Work | QA Full Stack Tester

🎯 Impact | Front-end quality, back-end reliability, test automation

📏 Size | ~150 employees globally

🌟 Tech | Linux / Unix, SQL, Playwright, JavaScript or Python, Test Automation

📍 Location | London

💻 Hybrid | 3 days per week in the office

💰 Offer | Salary to be confirmed

💎 Benefits | Private medical, 25 days holiday + bank holidays, pension, enhanced parental leave, life assurance, income protection, electric car scheme

The Work

Most QA roles keep you at the edge of the product.

You test a feature. Log the defect. Wait for the next ticket.

This one gets you closer to the systems that matter.

You’ll be testing front-end and back-end software used inside a live electronic trading environment. Every release has to be tested carefully before it reaches production, because reliability, data accuracy and system behaviour all matter when the platform is supporting real market activity.

You’ll work with developers, product specialists, business analysts and operations engineers to understand requirements, design test coverage, validate expected behaviour and manage defects through to resolution.

You won’t be boxed into manual testing or automation testing alone. You’ll split your time across both, with a clear focus on expanding automated test coverage using Playwright and TypeScript.

And because the engineering group is still relatively small, your work will be visible. The tests you design, the automation you build and the issues you uncover will directly shape how the platform evolves.

What you’ll be doing

You’ll test complex trading technology across both the user-facing product and the systems behind it.

That includes:

• Designing and running manual and automated test scenarios across front-end and back-end systems
• Building and maintaining automated end-to-end tests using Playwright and TypeScript
• Checking test results against expected outcomes and investigating unexpected behaviour
• Working with developers, analysts and product teams to clarify requirements and solution design
• Managing defects, escalating issues and helping releases move forward with confidence
• Monitoring and reporting test progress across larger systems
• Supporting the wider QA team as automation coverage grows
• Acting as test lead on smaller development initiatives

You’ll also occasionally support clients and technology partners with testing guidance when they integrate with the platform.

What you’ll need

You’ll likely recognise most of this from your current work.

• Experience testing complex software systems , ideally in financial markets
• Comfort working in Linux / Unix environments
• Ability to query and analyse data using SQL
• Experience with manual testing, automated testing and defect management
• Hands-on experience with Playwright and TypeScript for end-to-end testing

And ideally one or more of the following:

• Experience testing cash equities, market data or exchange platforms
• Python knowledge for API or back-end testing
• Experience with Docker or containerised environments
• Exposure to CI/CD pipelines
• Experience testing WebSocket, real-time or event-driven applications
• ISTQB or ISEB Foundation certification

Interview Process

📅 CV Review → Introductory call → Technical interview → Final meeting → Offer

If this sounds interesting, click Apply and we’ll organise a confidential conversation to walk you through the platform, team and roadmap in more detail.

***You must be eligible to work in the UK, to be considered for this opportunity***