Software Development Engineer in Test

MLabs

Software Development Engineer in Test ensuring quality in automated testing within an agile development environment. Collaborating with engineers and analysts to enhance automated testing pipelines.

Posted 6/1/2026full-timeRemote • 🇬🇧 United KingdomMid-LevelSenior💰 £70,000 - £85,000 per yearWebsite

Tech Stack

Tools & technologies

JavaSelenium

About the role

Key responsibilities & impact

Design, develop, and maintain advanced automated acceptance and end-to-end testing infrastructure to support a robust continuous delivery pipeline.
Collaboratively analyze and challenge functional and technical requirements alongside business analysts and developers to ensure comprehensive test coverage.
Proactively identify system components, edge cases, and architectural friction points that would benefit from enhanced verification and testing focus.
Participate actively in the software lifecycle through pair programming, knowledge sharing, and technical discussions across teams.
Execute targeted exploratory testing sessions to discover hidden failure modes and ensure a thoroughly validated end-user experience.

Requirements

What you’ll need

Proven experience validating individual software components and orchestrating end-to-end system tests.
Demonstrated capability in designing and testing failure scenarios, resiliency, and system edge cases.
Strong proficiency in Object-Oriented Programming (OOP) methodologies, with a distinct preference for core Java.
Extensive background in structured exploratory testing techniques.
Exposure to Continuous Integration (CI) environment management and Continuous Delivery (CD) processes is highly advantageous.
Experience operating within Extreme Programming (XP) frameworks or structured pair programming workflows is advantageous.
Hands-on exposure to API Testing methodologies is a plus.
Experience utilizing Selenium for UI Automation and front-end verification is a plus.
Familiarity with distributed, asynchronous, or event-driven system architectures is advantageous.
Understanding of core networking protocols and messaging frameworks is a plus.
Domain knowledge within Electronic Trading platforms across any asset class, with a strong preference for Fixed Income markets is advantageous.

Benefits

Comp & perks

Competitive base salary up to £85,000, tailored to depth of experience.
Equity participation through a comprehensive company share scheme.
Generous corporate benefits package.
Flexible, remote-first working arrangements with regional flexibility across the UK and Europe.
Access to modern, central London office facilities (Moorgate) for collaborative workshops and team events.
Accelerated professional development through close collaboration with seasoned, cross-skilled technology specialists.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Object-Oriented ProgrammingJavaexploratory testingAPI TestingUI AutomationSeleniumContinuous IntegrationContinuous DeliveryExtreme Programmingpair programming

Soft Skills

collaborationanalytical skillsproblem-solvingcommunicationknowledge sharingtechnical discussions