Software Development Engineer in Test

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.

• 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.

• 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 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.

• 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.

• 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.

At MLabs, we are committed to offer…