Lead Software Developer in Test
Quantum is seeking a Lead Software Developer in Test to join its in-house engineering team. The role involves leading quality engineering across two product teams, iGaming and Rewards, as the company builds a new version of its platform. The successful candidate will be responsible for guiding testing practices, building frameworks and pipelines, and fostering a culture where every engineer takes ownership of their work quality.
This is a hands-on technical position that requires both individual contribution and leadership. Initially, the role will focus on writing framework code, while over time, the focus will shift towards building tooling and coaching other engineers to ensure high standards of quality across the development lifecycle.
- Define our test strategy: what we test at unit, integration, contract and end-to-end level, so every team knows where a given test belongs and why.
- Build and own our automation framework in Playwright and TypeScript, covering web front ends and APIs across both product teams.
- Make CI feedback fast and trustworthy.
- Bring our existing end-to-end suite to a healthy state and keep it there as the new platform grows.
- Coach developers to write and own tests for their own code, through pairing, code review and clear examples.
- Set up test data and environments that let teams test realistically and safely.
- Introduce performance and load testing for our core applications.
- Work with product managers so acceptance criteria are testable before build starts, and so testing time is part of every estimate.
- Track a small set of quality measures, such as escaped defects, change failure rate, suite run time and flake rate, and use them to decide where to invest next.
- Strong coding skills in TypeScript or JavaScript, with test code written to the same standard as production code (required).
- Deep experience with a modern browser automation framework. Playwright is ideal; Cypress experience transfers well (we’re in the process of migrating from Cypress to Playwright) (required).
- A track record of designing test strategy across the full testing pyramid for web products and APIs, including judging where automation earns its keep (required).
- Experience running automated tests in CI (GitHub Actions ideally) with Docker, and fixing pipelines that are slow or unreliable (required).
- Evidence of raising quality through other people, whether by coaching developers, setting standards or leading a quality practice (required).
- Contract testing in a service-based architecture, for example with Pact (nice-to-have).
- Performance and load testing with k6, Artillery or similar (nice-to-have).
- Using AI coding assistants to speed up writing and maintaining tests, with the judgement to review what they produce (nice-to-have).
- Using observability data and production signals to decide what to test (nice-to-have).
- Visual regression or accessibility testing (nice-to-have).
- Experience in a regulated industry such as iGaming, fintech or health (nice-to-have).
- Private Health Care (Bupa)
- Hybrid Working (3 days in office)
- Travel Insurance
- Competitive Base Salary
- Company Bonus Scheme
- Paid for AI Subscription (Claude / ChatGPT / Gemini)
- Market-Leading Training Programme
- Recognition & Reward Scheme
- Annual Company Conference
- Regular Happy Hours & Team Lunches
- Free Coffee, Drinks & Snacks
Quantum is a performance-driven affiliate marketing and digital comparison company that connects global brands with high-intent consumers. Headquartered in London, it builds data-driven comparison services and campaigns designed to be measurable, optimised in real time and scalable. The company combines in-house technology, full-stack analytics and a compliance-first approach to operate in regulated and high-growth sectors. Quantum aims to help users make faster, smarter buying decisions while driving growth for its partners.
