Quality Engineer – Mobile Applications, API and Customer Journey Automation

Cognizant; Burgess Hill; Hybrid; GBP 45,000 - 75,000; Full time

Job summary

Cognizant in the United Kingdom is seeking a Quality Engineer to strengthen a cross-functional Scrum Team with a focus on mobile apps, APIs and end-to-end automation.

You will apply risk-based testing, develop maintainable automated tests, and drive improvements across the software delivery lifecycle, including responsible use of AI-assisted engineering and strong collaboration with stakeholders.

Qualifications

• Good experience in Quality Engineering or software testing within Agile delivery.
• Hands-on testing of mobile apps and backend APIs with automated test suites.
• Strong understanding of SDLC, testing principles, defect management and risk-based testing.
• Experience with source control, build tools and CI/CD pipelines.
• Strong analytical, problem-solving and communication skills across stakeholders.

Responsibilities

• Collaborate with Engineers, Product Owners and stakeholders to clarify requirements, acceptance criteria and quality risks early.
• Define risk-based test approaches covering functional and non-functional requirements.
• Design, maintain and integrate automated tests for mobile applications, APIs and end-to-end customer journeys within CI/CD pipelines.
• Perform exploratory, integration, regression, compatibility and usability testing across devices, OS and environments.
• Validate service integrations, data flows, error handling and third-party dependencies through API and contract testing.
• Investigate and communicate defects using reproducible evidence; use logs, results, metrics and production insights to diagnose failures and assess quality.
• Promote shift-left quality, testability, peer review and shared ownership within the Scrum Team.
• Contribute reusable frameworks, engineering standards and continuous improvement across the Quality Engineering community.
• Use AI-assisted engineering responsibly to improve test design, automation, analysis and productivity with appropriate human oversight.

Skills

Quality engineering

Automation testing

Mobile app testing

API testing

CI/CD pipelines

Agile delivery

Analytical skills

Communication

Job description

As an embedded member of a cross-functional Scrum Team, you will help prevent defects by applying an engineering-led, risk-based approach throughout the software delivery lifecycle. You will improve the client customer experience through mobile, API and end-to-end automation, early risk identification, fast feedback and evidence-based release decisions.

You will champion shared ownership of quality, provide constructive challenge and engineering insight, and contribute to the wider Quality Engineering community through continuous improvement and responsible AI-assisted engineering.

Role requires - 3 days working from Burgess Hill location.

Key Responsibilities:

• Collaborate with Engineers, Product Owners and stakeholders to clarify requirements, acceptance criteria and quality risks early.
• Define risk-based test approaches covering functional and non-functional requirements.
• Design, maintain and integrate automated tests for mobile applications, APIs and end-to-end customer journeys within CI/CD pipelines.
• Perform exploratory, integration, regression, compatibility and usability testing across relevant devices, operating systems and environments.
• Validate service integrations, data flows, error handling and third-party dependencies through API and contract testing.
• Investigate and communicate defects using reproducible evidence; use logs, results, metrics and production insights to diagnose failures and assess quality.
• Promote shift-left quality, testability, peer review and shared ownership within the Scrum Team.
• Contribute reusable frameworks, engineering standards and continuous improvement across the Quality Engineering community.
• Use AI-assisted engineering responsibly to improve test design, automation, analysis and productivity with appropriate human oversight.

Required Skills and Experience:

• Good experience in Quality Engineering, software testing or an equivalent role within Agile delivery.
• Hands-on experience testing mobile applications and backend APIs, and developing maintainable automated test suites using a modern programming language and suitable frameworks.
• Strong understanding of the software development lifecycle, testing principles, defect management and risk-based testing.
• Experience with source control, build tools and CI/CD pipelines.
• Strong analytical, problem-solving and communication skills across technical and non-technical stakeholders.
• A collaborative, customer-focused mindset with shared accountability for reliability, usability, accessibility and overall product quality.
• Preferred: Experience with native or cross-platform mobile automation tools, device or emulator testing, RESTful services, API automation, and service virtualisation or mocking.
• Preferred: Exposure to performance, security, accessibility, visual or resilience testing, with experience diagnosing issues through logs, network traces, observability tools or analytics.
• Preferred: Knowledge of cloud-based test environments, containerised delivery or distributed systems, and governed use of generative AI or intelligent automation.
• Preferred: Understanding of regulated, financial services or other high-assurance environments.