Senior Automation Tester

October 21, 2026

Senior

London Colney, United Kingdom

Description

Senior automation testing role within a large Quality Engineering & Assurance practice serving more than 650 clients across industry verticals, with a global footprint. The role combines traditional test automation for the API, UI and mobile layers of airline applications with AI-first QA: AI-assisted test generation, validation of GenAI-powered features and AI-driven release blocker detection. Work includes end-to-end test planning, CI/CD-integrated continuous testing, and realistic airline scenarios covering PSS, GDS, NDC, reservations, ticketing, check-in, baggage, loyalty and crew operations. Full-time position based in London Colney, England, United Kingdom.

Responsibilities

Design, build and maintain scalable automation frameworks for airline APIs, UI and mobile applications
Lead end-to-end test planning, execution and defect triage across functional, regression and integration cycles
Integrate automated test suites into CI/CD for continuous testing and fast release feedback
Use AI tools to automatically generate, prioritize and maintain test cases and scripts from requirements and production logs
Validate the accuracy, bias and reliability of AI/GenAI-powered features, including chat assistants, recommendation systems and dynamic pricing
Test GenAI-powered model features by validating prompts and responses, detecting hallucinations, and regression-testing outputs across releases
Identify release blockers, including model drift, performance degradation, data quality issues and flaky automation
Compare AI-generated test artifacts with manually written benchmarks and address coverage gaps
Build realistic test scenarios based on aviation industry knowledge
Validate airline business rules, fare and schedule logic, and regulatory requirements through automated and AI-assisted checks
Build and configure lightweight AI agents and copilots for test data generation, log triage, defect classification, self-healing locators and results summarization

Requirements

Hands-on knowledge of the aviation domain: PSS, GDS, NDC, reservations, ticketing, check-in, baggage, loyalty, and crew operations
Experience designing and maintaining scalable automation frameworks for API, UI and mobile layers
Experience with end-to-end test planning, test execution and defect triage across functional, regression and integration cycles
Proficiency with AI test-generation tools and AI-assisted QA processes
Understanding of AI Assurance practices, including evaluating the accuracy, bias and reliability of AI/GenAI features
GenAI testing skills, including prompt and response validation, hallucination checks, and output regression testing across releases
Experience integrating automated test suites into CI/CD pipelines
Ability to validate airline business rules, fare and schedule logic, and regulatory compliance requirements

Conditions

Full-time position
Location: London Colney, England, United Kingdom
Work within a global QE&A practice serving more than 650 clients across multiple industries
Position level: Mid-Senior level