Senior Test Engineer

🔒 Confidential Employer
Posted 7 May 2026
LOCATION
Not specified
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Software Engineering
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Test Automation Performance Testing CI/CD AI-Assisted Engineering TDD/BDD Observability Mentoring Problem Solving

FULL DESCRIPTION

Senior Test Engineer

[Employer hidden — sign up to reveal] Group | Competitive | Hybrid | Full-time | Mid-Senior level

Location: Not specified (UK-based, Slough HQ)

The Vacancy

This is an opportunity to join [Employer hidden — sign up to reveal] Group as we transform into an AI-first company delivering cloud-native solutions that impact millions of lives globally. [Employer hidden — sign up to reveal] produces an integrated suite of mission-critical software applications spanning accountancy, HR, payroll, education, and business operations. You will be working as part of an Agile team to deliver innovative solutions to user stories and requirements, contributing to our modernisation journey that serves over 100,000 customers across 135 countries.

Role Purpose

As a Senior Software Test Engineer, you will help foster a collaborative culture within the team, sharing knowledge and learning. You will contribute to technology and process decisions, try out new ideas, experiment, and embrace a fail-fast mentality. Champion a quality first approach to software development and ensuring that quality is maintained throughout the cycle.

Key Responsibilities

  • Collaboration & Communication: Engage in story refinement sessions with Product Owners, providing technical expertise for estimation and risk assessment. Partner with cross-functional teams to deliver comprehensive solutions. Influence technology choices. Proactively identify and inspire resolution of technical debt.
  • Quality & Standards: Champion comprehensive quality practices including TDD/BDD standards, automated testing strategies, and shift-left testing. Establish testing tooling and practices. Lead troubleshooting efforts for complex software issues.
  • Growth & Development: Mentor junior and mid-level engineers actively. Lead team code review standards establishment. Drive continuous improvement and champion responsible AI adoption.

Required Experience & Skills

Technical Skills: Test automation (Playwright, Selenium, Reqnroll/SpecFlow, RestSharp). Performance Testing (JMeter, Gatling, K6). CI/CD design. AI-Assisted Software Engineering (Cursor, Copilot, Devin, Claude Code). Quality & Testing (TDD/BDD). Observability (DataDog, Splunk, NewRelic, Grafana).

Experience: 5-7 years professional software testing experience. Proven ability in testing complex multi-system solutions. Experience with highly scalable internet-facing applications. Demonstrated ability to design testing architectures. Track record of driving quality excellence.

Soft Skills: Strong analysis and problem-solving. Excellent communication. Technical leadership. Mentoring. Collaborative approach. Conflict resolution. Learning mindset.

Benefits & Why Join [Employer hidden — sign up to reveal]

  • Competitive salary
  • Generous holiday allowance
  • Private medical healthcare
  • Life assurance
  • Pension
  • Professional development opportunities
  • Flexible working arrangements
  • Cycle to Work, charity days, discount schemes

About [Employer hidden — sign up to reveal]

As one of the UK’s largest privately held software companies, [Employer hidden — sign up to reveal] Group exists to simplify the lives of businesses, schools and organisations. [Employer hidden — sign up to reveal] provides software solutions and services that substantially enhance operational compliance, efficiency and accuracy. Over 4 million parents use our software, 18% of UK employees are paid via an [Employer hidden — sign up to reveal] payroll solution, 50,000 SMEs use [Employer hidden — sign up to reveal] cloud bookkeeping and 21,000 firms rely on us for legislative compliance.

Application Information

Apply Now via the website or email [Employer hidden — sign up to reveal]. Closing in 24 days.

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