Senior QA & API Integration Engineer - VOIS

Who we are

VOIS (Vodafone Intelligent Solutions) is a strategic arm of Vodafone Group Plc, creating value for customers by delivering intelligent solutions through Talent, Technology & Transformation.
As the largest shared services organisation in the global telco industry with 30,000 FTE, our portfolio of next-generation solutions and services are designed in partnership with customers across Vodafone Group, local markets, and partner markets to simplify and drive growth. With our strategic partner Accenture, we work alongside our Vodafone customers, other Telco and tech companies to drive transformation, meet the challenges of our industry and ensure we stay relevant and resilient. This partnership is a unique, industry-first model which brings together the best of in-house and 3rd party capability.
We work with customers across 28 countries from 10 VOIS locations: Albania, Egypt, Hungary, India, Romania, Spain, Turkey, UK, Germany, Ireland, and with a network of teams in Czech Republic, Italy, Greece, and Portugal.
#VOIS #BeUnrivalled #CreateTheFuture

About this Role

What you’ll do

• Support end-to-end quality assurance activities for eSIM, provisioning, and telecom platforms, including release testing, defect analysis, issue triage, and responses to market or customer queries.
• Execute manual and automated test scenarios aligned with agreed test strategies, plans, and release schedules.
• Design, maintain, and enhance API test suites and supporting integration documentation.
• Perform API functional, integration, regression, and end-to-end testing across interconnected systems.
• Analyse logs, traces, backend behaviour, and API transactions to conduct root cause analysis and support timely issue resolution.
• Document, prioritise, track, and report defects using established defect management processes and tools.
• Review business requirements and technical specifications to ensure comprehensive test coverage and adherence to quality standards.
• Coordinate testing activities across release cycles and support release onboarding processes.
• Validate functional and non-functional requirements, including error handling, edge cases, and data accuracy.
• Perform reconciliation activities and troubleshoot API connectivity and integration issues.
• Collaborate with development, integration, operations, and business stakeholders to ensure effective delivery outcomes.
• Support integration testing with partner and market systems while assessing downstream impacts of changes.
• Contribute to continuous improvement initiatives relating to QA processes, automation frameworks, tools, and methodologies.
• Prepare and maintain integration artefacts including interface specifications, data mappings, configuration guides, and reusable onboarding templates.

Who you are

• Degree or higher degree in Software Engineering, Computer Science, or a related technical discipline.
• 10+ years of experience in quality assurance, API integration, testing, and release management activities.
• Strong understanding of QA processes, software testing lifecycle (STLC), software development lifecycle (SDLC), and Agile delivery methodologies.
• Extensive hands-on experience with REST APIs, JSON, XML, message queues, and integration technologies.
• Proven experience in API testing covering functional, integration, end-to-end, and regression testing.
• Strong experience in designing and implementing API test automation frameworks.
• Demonstrated expertise with troubleshooting API issues, analysing logs, investigating failures, and performing reconciliation activities.
• Experience with defect management and collaboration tools such as Jira.
• Excellent understanding of system integration concepts, data mapping, and interface validation.
• Strong analytical, debugging, and problem-solving capabilities with a structured and detail-oriented approach.
• Experience working within cross-functional and geographically distributed teams.
• Ability to manage competing priorities and deliver effectively during time-sensitive release cycles.
• Effective verbal and written communication skills with strong stakeholder engagement capabilities.
• Self-motivated, proactive, collaborative, and committed to quality-focused delivery.

Not a perfect fit?

Concerned you may not meet every requirement? Vodafone is committed to creating an inclusive workplace where everyone can thrive. If you are excited about this role but your experience does not align exactly with every aspect of the job description, you are encouraged to apply. You may be the right candidate for this or another opportunity, and the recruitment team will support you in exploring where your skills fit best.

What's in it for you

• Opportunity to work on strategic telecom and eSIM transformation initiatives.
• Exposure to large-scale integration ecosystems supporting global Vodafone markets.
• Collaboration with multidisciplinary teams across development, operations, quality engineering, and solution design.
• Opportunity to contribute to reusable integration standards, onboarding frameworks, and automation capabilities.
• Exposure to modern API technologies, test automation practices, and cloud-based environments.
• A collaborative Agile environment that encourages continuous improvement and knowledge sharing.

What skills you will learn

• Advanced API integration and testing expertise across complex telecom ecosystems.
• eSIM provisioning architecture, industry standards, and digital onboarding processes.
• Automation framework design, implementation, and optimisation techniques.
• Release management, integration lifecycle governance, and quality engineering practices.
• Cloud infrastructure concepts and platform troubleshooting within AWS environments.
• Cross-functional stakeholder engagement and large-scale delivery coordination skills.

VOIS Equal Opportunity Employer Commitment

Vodafone recognises and celebrates the value of diversity in building a workforce that reflects the customers and communities it serves. No form of discrimination is tolerated. This includes, but is not limited to, discrimination based on race, colour, age, veteran status, gender identity, gender expression, sexual orientation, pregnancy, maternity or parental status, ethnicity, disability, religion or belief, political affiliation, trade union membership, nationality, citizenship, indigenous status, medical condition, HIV status, neurodiversity, social origin, cultural background, marital or civil partnership status, or socio-economic background.

Join Us

At Vodafone, we’re working hard to build a better future. A more connected, inclusive and sustainable world. As a dynamic global community, it's our human spirit, together with technology, that empowers us to achieve this.
We challenge and innovate in order to connect people, businesses, and communities across the world. Delighting our customers and earning their loyalty drive us, and we experiment, learn fast and get it done, together.
With us, you can truly be yourself and belong, share inspiration, embrace new opportunities, thrive, and make a real difference.

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