Hybrid Quality Engineer: Mobile Apps & API Automation

Square One Resources; Burgess Hill; Hybrid; GBP 55,000 - 83,000; Full time

Job summary

Square One Resources is seeking an experienced Quality Engineer - Mobile Applications to join a cross-functional Scrum team developing a customer-facing travel app for a global financial services organisation. The role emphasizes automated testing, risk-based strategies and quality ownership across mobile apps, APIs and end-to-end journeys.

The position requires hands-on mobile testing, API validation, and familiarity with CI/CD pipelines.

Qualifications

• Hands-on experience testing mobile applications and backend APIs.
• Proven ability to develop and maintain automated test suites using a modern programming language and suitable frameworks.
• Strong understanding of software development lifecycles, testing principles, defect management and risk-based testing.
• Experience with source control, build tools and CI/CD pipelines.
• REST API automation, service virtualisation and mocking.
• Performance, security, accessibility, visual and resilience testing.
• Cloud-based test environments, containerised delivery or distributed systems.
• Responsible use of generative AI and intelligent automation.

Responsibilities

• Collaborate with engineers, product owners and stakeholders to define requirements, acceptance criteria and quality risks.
• Develop risk-based test strategies covering functional and non-functional requirements.
• Design, maintain and integrate automated tests for mobile applications, APIs and end-to-end customer journeys.
• Integrate automated testing into CI/CD pipelines to support fast feedback and reliable releases.
• Conduct exploratory, integration, regression, compatibility and usability testing across devices, operating systems and environments.
• Validate API integrations, data flows, error handling and third-party dependencies.
• Investigate defects using logs, test results, metrics and production insights.
• Promote shift-left testing, testability, peer reviews and shared quality ownership within the Scrum team.
• Contribute reusable automation frameworks, engineering standards and continuous improvement initiatives.
• Use AI-assisted engineering responsibly to enhance test design, automation and productivity.

Skills

Mobile test automation

API testing

Automation frameworks

Risk-based testing

Agile & Scrum

CI/CD

Defect analysis

Observability & logs

Job description

Square One Resources is seeking an experienced Quality Engineer - Mobile Applications to join a cross-functional Scrum team developing a customer-facing travel app for a global financial services organisation. The role emphasizes automated testing, risk-based strategies and quality ownership across mobile apps, APIs and end-to-end journeys.

The position requires hands-on mobile testing, API validation, and familiarity with CI/CD pipelines.