Senior AI Quality Assurance Engineer
Shape the Future of AI-Powered Authentication
Location - Remote with occasional travel when required
Salary – Circa £55,000 - £80,000 base DOE
We're looking for a highly skilled Senior QA / Senior Testing Engineer to help bring an innovative authentication product from proof-of-concept to pilot-ready.
This is a critical role, ensuring that next-generation behavioural AI authentication technology is reliable, secure, and scalable before it reaches real-world users.
You'll take ownership of testing across mobile platforms, APIs, and AI-driven authentication models, working closely with engineering teams to set the gold standard for quality in digital identity security.
What You'll Do:
Product Testing & Quality Assurance
* Design and implement comprehensive test strategies for mobile authentication platforms
* Build and maintain automated test suites for APIs, apps, and authentication workflows
* Create and maintain test cases covering functional, integration, performance, and security testing
* Carry out functional, integration, regression, performance, and security testing
* Establish CI/CD testing pipelines and collaborate with engineers to deliver seamless releases
* Track, manage, and resolve bugs with a focus on system reliability
AI Model Testing & Evaluation
* Create frameworks to evaluate behavioural AI models in both lab and real-world environments.
* Design and execute tests to measure model accuracy, precision, recall, and false positive/negative rates with real-world data.
* Curate datasets for model validation and edge case testing
* Perform bias and edge case testing to ensure fairness across user populations
* Evaluate model performance under various conditions (device types, user behaviours, environmental factors)
* Collaborate with AI engineers to establish model performance benchmarks and acceptance criteria
Security & Privacy Testing
* Conduct security testing specific to authentication systems and behavioural data handling
* Validate privacy controls and data protection measures
* Test authentication bypass scenarios and potential attack vectors
* Ensure compliance with relevant security standards and regulations
Pilot Preparation & Documentation
* Produce test documentation and reports for pilot deployment
* Establish monitoring and alerting systems for production quality metrics
* Create testing protocols for pilot partners and end-user scenarios
* Develop troubleshooting guides and quality checklists for deployment teams
What We're Looking For
* Experience
: minimum 3+ years in software testing and QA, ideally with mobile and security systems
* Technical Skills
:
* Automated testing (Selenium, Appium, Cypress)
* Mobile testing (iOS/Android)
* Python/JavaScript for test development
* API testing (Postman, REST Assured)
* CI/CD tools (Jenkins, GitHub Actions)
* Understanding of database testing and SQL
* Experience testing AI/ML or data-driven applications
* Security and performance testing expertise, particularly in authentication systems
* Knowledge of behavioural biometrics or fraud detection systems
* Understanding of privacy regulations (GDPR, CCPA, etc.) as they relate to biometric data
* Traits & Mindset
:
* Analytical and detail-oriented, able to think like both a user and an attacker
* Collaborative communicator, comfortable working cross-functionally
* Adaptable in a fast-paced, startup-style environment
* Passionate about delivering high-quality, secure products
* Excited by innovation in AI, biometrics, and authentication technology