Senior Testing Engineer in London

Energy Jobline ZR; City Of London; On-site; GBP 70,000 - 80,000; Full time

Job summary

A leading financial services organization in London is looking for a Senior Test Engineer to enhance the quality of trading technology platforms. The successful candidate will develop automated tests, conduct manual testing, and work within CI/CD processes. A strong background in test automation and API testing is essential. This role offers a salary of £70,000 - £80,000 alongside a discretionary bonus and full corporate benefits.

Benefits

Discretionary bonus

Full corporate benefits

Qualifications

• Proven experience in test automation using Cypress or Playwright.
• Strong knowledge of API testing (REST, WebSocket).
• Proficiency in JavaScript/TypeScript.
• Experience integrating tests within CI/CD pipelines.

Responsibilities

• Design, develop, and maintain automated end‑to‑end tests.
• Create and maintain API test suites.
• Integrate automated tests into CI/CD pipelines.
• Collaborate closely with development teams.

Skills

Test automation using Cypress

API testing (REST, WebSocket)

JavaScript/TypeScript proficiency

CI/CD pipeline integration

Manual and exploratory testing

Agile/Scrum background

Experience in financial services

Tools

Cypress

Playwright

Azure DevOps

SQL

Docker

Job description

Senior Test Engineer - Trading Technology

Job Description

A leading financial services organisation is seeking a talented Senior Test Engineer to join their dynamic Trading Technology team. The firm operates globally, offering real‑time trading and risk management platforms that underpin complex, high‑performance trading activities across multiple markets. This is an exciting opportunity for a hands‑on Senior Test Engineer to ensure the quality, reliability, and performance of two core platforms: a trade execution system and a risk management platform.

Role and Responsibilities

• Design, develop, and maintain automated end‑to‑end tests using Cypress and Playwright.
• Create and maintain API test suites (REST & WebSocket) to ensure backend reliability and performance.
• Integrate automated tests into CI/CD pipelines (Azure DevOps) to deliver rapid, reliable feedback on deployments.
• Collaborate closely with development and product teams to define test strategies and coverage.
• Conduct manual and exploratory testing where automation is not yet implemented.
• Identify gaps in existing QA processes and introduce improvements to strengthen overall test quality.
• Champion a culture of quality and testing excellence across the team.

Essential Skills and Experience

• Proven experience in test automation using Cypress or Playwright.
• Strong knowledge of API testing (REST, WebSocket).
• Proficiency in JavaScript/TypeScript.
• Experience integrating tests within CI/CD pipelines (Azure DevOps, GitHub Actions, or Jenkins).
• Manual and exploratory testing experience.
• Background in Agile/Scrum delivery environments.
• Previous experience in financial services, fintech, or trading systems.

Desirable Skills

• Working knowledge of SQL, Docker, or cloud platforms (Azure).
• Familiarity with performance and security testing.
• Experience leading or shaping test automation strategies.

Package

• £70,000 - £80,000
• Discretionary bonus
• Full corporate benefits
• On‑site (5x week in London)

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