About the role
We’re looking for a Senior QA Automation Engineer to join an established trading platform development programme for a large enterprise client. The platform has been live in production for over 7 years, with most of the core team having worked on it for close to 5 years on average — a reflection of the stability, quality, and long‑term nature of this engagement.
The system is production‑critical and actively evolving, with a strong focus on performance, reliability, and maintainability. While Applied Blockchain is well known for distributed ledger and cryptography work, this role is focused on a non‑blockchain trading system built using modern TypeScript‑based technologies.
You’ll be responsible for building and maintaining automated test pipelines, ensuring the quality of the platform as it continues to grow. You’ll be joining a highly experienced team of senior engineers and QA engineers, where autonomy, technical ownership, and a commitment to quality are expected.
What you’ll be doing
- Building and maintaining automated test pipelines utilising Playwright tests
- Analyse, understand, and review the product’s functional and non‑functional requirements and identify gaps and inconsistencies
- Develop automated tests for software validation, ensuring high quality of the system
- Understand LLMs/AI and spot where it can be used to improve personal/team efficiency and quality of the trading platform. However, your work remains your responsibility and you will be expected to understand and explain whether using LLMs or not
- Collaborate with engineers from the early stages of delivery to ensure quality is considered throughout
- Report and manage/triage existing defects, ensuring proper follow‑up and actions are being taken by the team
- Promote and adopt QA best practices, contributing to their continuous improvement
- Contribute to the definition of test automation guidelines and standards in order to improve the software testing process
Qualifications
- 3+ years of experience writing automated tests for web and/or non‑web applications
- Strong knowledge of QA methodologies, tools and processes
- Fluency in JavaScript/TypeScript and Git/GitHub
- Experience with Jest, Playwright and BDD tools (e.g. Cucumber)
Nice to have
- We have a preference for a hybrid working arrangement, however flexibility can be discussed depending on the candidate and location
- Experience with high‑volume, high‑availability enterprise systems
- Experience building or testing REST and/or WebSocket APIs
- Exposure to trading applications in production
- Performance testing experience with K6, Artillery or similar
Benefits
- 5 days/per year for training
- £1,000 annual allowance for training (up to 50% of this value can be used for you to buy workstation equipment to work from home)
- In‑person fun team events/team buildings every 3 months
- Company equipment and onboarding kit
- Annual bonus (dependent on company and personal performance)
- Stock option plan
- Birthday off
- Generous employee referral programme
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