Software Development Engineer in Test in London

Location: UK or Remote in EU. Candidates need to be able to work UK hours. Remote | Full-time

Compensation: £70K - £85K

We are hiring on behalf of our client, an innovative technology provider, who is seeking a talented Software Development Engineer in Test. The selected professional will integrate directly into an agile development environment, collaborating closely with engineers, technology specialists, and business analysts to expand and elevate a sophisticated suite of automated acceptance and end‑to‑end (E2E) testing pipelines. Operating under a remote‑first framework across the UK and Europe, this permanent position offers the successful candidate the flexibility of remote working alongside access to a collaborative corporate office hub located in Moorgate, London.

Key Responsibilities

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

Core Technical Experience

• 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.

Preferred / Advantageous Qualifications

• Exposure to the following areas is highly advantageous, though candidates are not expected to satisfy every criterion:
• Familiarity with Continuous Integration (CI) environment management and Continuous Delivery (CD) processes.
• Experience operating within Extreme Programming (XP) frameworks or structured pair programming workflows.
• Hands‑on exposure to API Testing methodologies (independent of standard HTTP‑focused web testing).
• Experience utilizing Selenium for UI Automation and front‑end verification.
• Familiarity with distributed, asynchronous, or event‑driven system architectures.
• Understanding of core networking protocols and messaging frameworks.
• Domain knowledge within Electronic Trading platforms across any asset class, with a strong preference for Fixed Income markets.

Personal Attributes & Skills

• Possess an inquisitive, analytical mindset with a natural aptitude for identifying system weaknesses and edge cases.
• Self‑assured and proactive, comfortable with navigating ambiguity and shaping the trajectory of the testing role.
• Excellent communication skills, both in written documentation and verbal articulation, with the ability to bridge technical and non‑technical audiences.
• A collaborative team player who thrives in an open, iterative, and fast‑paced engineering environment.
• Highly adaptable and capable of responding efficiently to evolving project priorities and market requirements.
• Genuinely curious about emerging technology trends, modern software practices, and architectural standards.

Benefits

• 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.

Commitment to Equality and Accessibility

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job‑advert in an accessible format please let us know at the earliest opportunity by emailing human‑.

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