Automation Tester - C#/Playwright

Cognizant; Greater London; On-site; GBP 45,000 - 75,000; Full time

Job summary

Cognizant is seeking an experienced Automation Tester to join our QA team. The role focuses on maintaining and extending a .NET test automation framework built on Reqnroll (BDD) and Microsoft Playwright on .NET 8.

You will craft Gherkin feature files, step definitions, and page objects to support new and changed functionality. Responsibilities include contributing to a shift-left testing model, resolving test flakiness, and enhancing the Azure DevOps CI/CD pipeline.

Qualifications

• Solid hands-on C# experience in .NET 8.
• Experience writing and maintaining BDD feature files with SpecFlow.
• Ability to write clear Gherkin scenarios using Given/When/Then.
• Test framework experience in NUnit or xUnit in .NET.
• Strong Page Object Model implementation.
• Experience with Git PR workflows and branch strategies.
• Excel-based test data management using EPPlus or similar.
• Ability to write and validate SQL queries for test data retrieval.
• Structured logging with Serilog in a test context.

Responsibilities

• Maintain and extend the Reqnroll (SpecFlow) BDD automation framework in C#/.NET 8.
• Write and review Gherkin feature files, step definitions and page objects.
• Ensure automated tests are submitted with PRs to support shift-left testing.
• Investigate and resolve test flakiness and replace sleeps with waits.
• Maintain and enhance the Azure DevOps CI/CD pipeline for tests.
• Triage pipeline failures and distinguish test vs. environment issues.
• Collaborate with DevOps to configure and maintain agent pools.
• Manage test data in Excel and databases with environment isolation.
• Participate in sprint ceremonies and provide test estimates and risk notes.

Skills

C# (.NET 8)

Playwright

Reqnroll or SpecFlow

Gherkin / BDD

NUnit or xUnit

Page Object Model

Git

Excel test data management

SQL

Serilog

Tools

Microsoft.Playwright

EPPlus

SQL tooling

Job description

We are looking for an experienced Automation Tester to join the QA team. The successful candidate will maintain and extend .NET test automation framework built on Reqnroll (BDD) and Microsoft Playwright on .NET 8.

Key Responsibilities

• Maintain and extend the Reqnroll (SpecFlow) BDD automation framework written in C# / .NET 8 using Microsoft Playwright
• Write and review Gherkin feature files, step definitions and page objects to support new and changed functionality
• Ensure automated tests are submitted alongside pull requests for new features - contributing to a shift-left testing model
• Investigate and resolve test flakiness - replacing hard sleeps with condition-based waits, standardising step definitions, eliminating duplicate bindings
• Maintain and improve the Azure DevOps CI/CD pipeline - test result publishing, environment switching, and PR gate configuration
• Triage pipeline failures and distinguish test failures from environment or infrastructure issues
• Work with the DevOps team to configure and maintain the agent pool
• Manage test data in Excel and database - ensuring data integrity and environment isolation between SIT, UAT and FAT
• Participate in sprint ceremonies - providing test estimates, flagging automation risk, and contributing to Definition of Done

Technical Skills - Essential

• C# (.NET 8): Solid hands-on C# experience - OOP, generics, async/await, LINQ
• Playwright: Hands-on experience with `Microsoft.Playwright` - locators, auto-wait, trace viewer, assertions (`Expect`), async/await patterns
• Reqnroll or SpecFlow: Experience writing and maintaining BDD feature files, step definitions and hooks in a .NET context
• Gherkin / BDD : Ability to write clear, readable Gherkin scenarios - correct use of `Given/When/Then`, `Background:`, `Scenario Outline`
• NUnit or xUnit: Test framework experience in a .NET context
• Page Object Model: Strong POM implementation - separation of locators and functions, reusable components
• Git: Branch strategy, PR workflow, commit hygiene
• Excel test data management : EPPlus or similar - reading parameterised test data from Excel sheets
• SQL / database Ability to write and validate SQL queries for test data retrieval and assertion
• Serilog or similar logging: Structured logging in a test context

Technical Skills - Desirable

• Microsoft Dynamics 365 : Experience automating D365 CRM - iframe handling, BPF stages, lookup fields, command bar interactions
• Selenium WebDriver: Prior Selenium experience - useful for understanding existing test patterns and diagnosing legacy issues
• Azure AD / OAuth: Understanding of session tokens, re-authentication popups, service account configuration for pipelines
• Accessibility testing : Axe integration or similar - `a11y` test execution
• AutoIt :Windows automation for file upload dialogs