Functional Tester (AI- Enabled Applications)

Cognizant; Greater London; On-site; GBP 55,000 - 70,000; Full time

Job summary

Cognizant is seeking a detail-oriented Functional Tester in the Greater London area to validate end-to-end application functionality, business workflows, integrations, APIs, authentication, data, and AI-enabled capabilities. The role focuses on delivering release-quality solutions through thorough test design, execution, defect management, and stakeholder collaboration.

The candidate will perform API and integration testing, authentication testing, AI output validation, and accessibility

Qualifications

• Experience in functional testing, test case design, and requirement traceability.
• Proficient in API and integration testing and end-to-end workflow validation.
• Understanding of authentication like OIDC/OAuth/SSO.
• Experience testing AI-enabled apps, including AI output validation and AI-generated documents.

Responsibilities

• Functional testing, test case design, requirement traceability, and workflow validation.
• API testing, integration testing, and validation of end-to-end business processes.
• AI output validation, AI recommendation testing, golden dataset validation, and AI document generation testing.
• Defect lifecycle management, regression testing, test evidence, and release readiness validation.
• Accessibility testing (WCAG 2.2 AA) and stakeholder/UAT coordination.

Skills

Functional testing

Test case design

Requirement traceability

Regression testing

API testing

Integration testing

Auth testing

AI testing

Data validation

Defect lifecycle

Azure DevOps

SDLC/STLC

Agile delivery

Tools

Azure DevOps

API testing tooling

Job description

We are seeking a detail-oriented Functional Tester to validate end-to-end application functionality, business workflows, integrations, APIs, authentication, data, and AI-enabled capabilities. The role will ensure solutions meet business requirements, accessibility standards, and release-quality expectations through structured test design, execution, defect management, and stakeholder collaboration.

Key Responsibilities

• Functional Testing, Test Case Design, Requirement Traceability, and Workflow Validation.
• API Testing, Integration Testing, Authentication Testing (OIDC/OAuth/SSO), Data Validation, and End-to-End Business Process Testing.
• AI Output Validation, AI Recommendation Testing, Golden Dataset Validation, AI Document Generation Testing, and Business Rule Verification.
• Defect Management, Regression Testing, Test Evidence Preparation, Test Reporting, and Release Readiness Validation.
• Accessibility Testing (WCAG 2.2 AA), Usability Testing, Test Strategy, Azure DevOps Test Management, Risk-Based Testing, and Stakeholder/UAT Coordination.

Required Skills and Experience

• Strong hands-on experience in functional testing, test case design, requirement traceability, workflow validation, and regression testing.
• Experience with API and integration testing and validating end-to-end business processes.
• Understanding of authentication standards and flows such as OIDC, OAuth, and SSO.
• Experience testing AI-enabled applications, including AI output and recommendation validation, golden datasets, and AI-generated documents.
• Experience in backend/data validation and verification of business rules.
• Experience with defect lifecycle management, test evidence preparation, reporting, and release validation.
• Working knowledge of accessibility testing, including WCAG 2.2 AA.
• Hands-on experience with Azure DevOps for test management and defect tracking.
• Strong understanding of SDLC, STLC, Agile delivery, risk-based testing, and quality assurance practices.
• Strong analytical, problem-solving, documentation, and stakeholder communication skills.