Senior Software Development Engineer in Test, SDET

Bridge

Senior Software Development Engineer in Test focusing on automation and quality in FinTech startup. Collaborating with development teams to enhance software delivery processes and ensure high-quality outputs.

Posted 5/2/2026full-timeRemote • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies

CloudJavaTypeScript

About the role

Key responsibilities & impact

Design, maintain and evolve automation frameworks across the full stack: Component, Integration, Contract (Pact), E2E, and Performance/Load testing.
Partner with development teams during refinement, build and release phases to embed quality criteria into sprint planning and definitions of done.
Coach on automation, testability, observability and quality first design.
Ensure our pipelines are fast, reliable, and CI-native, implementing meaningful quality gates and reducing feedback loops.
Suggest architectural improvements to enhance testability and advocate for patterns that support robust contract testing.
Strengthen our monitoring and alerting standards, participating in incident post-mortems to turn ‘learnings’ into automated safeguards.
Use DORA metrics to provide visibility into quality trends and drive continuous improvement.
Proactively drive forward the organisation-wide quality strategy, designing the high-level architecture of our testing ecosystem, and mentoring junior engineers.
Act as a thought leader to coach development teams, championing 'quality-first' design to improve delivery speed and move the needle on engineering maturity.

Requirements

What you’ll need

Recent professional experience as a Software Development Engineer in Test (SDET) or equivalent role.
Strong software engineering fundamentals with professional proficiency in Java, TypeScript, or similar modern languages.
A proven track record of designing and maintaining multi-layered automation frameworks from Component and Integration to Contract (Pact), E2E, and Performance/Load testing.
Hands-on experience building CI/CD pipelines, integrating automated quality gates, and optimising for fast, parallelised feedback loops.
The ability to independently debug application issues, influence product design to maximise testability, and proactively coach engineers on best practices for unit and component testing.
The ability to suggest architectural system design improvements that enhance testability, observability, and logging across cloud-native environments.
Passionate about monitoring and alerting standards, with experience turning incident learnings into systemic, automated safeguards.
Communication skills to be able to coach development teams, drive ‘quality-first’ design, and move the needle on engineering maturity.
Display thought leadership in the quality space, focusing on improving delivery speed whilst maintaining quality.

Benefits

Comp & perks

Competitive salary and life insurance.
33 days holiday (including public holidays) plus Birthday Leave.
Remote-first working culture that respects your other priorities.
Family private healthcare and an Employee Assistance Programme.
A culture that champions career progression and direct investment in your learning and development.
Regular team events and socials to keep our remote team connected.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

JavaTypeScriptautomation frameworksComponent testingIntegration testingContract testingE2E testingPerformance testingCI/CD pipelinesDORA metrics

Soft Skills

coachingcommunicationthought leadershipinfluencingmentoringproactive problem solvingdesign improvementquality-first mindsetcollaborationdriving continuous improvement