Performance Testing 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

We are seeking a Performance Testing Engineer to deliver non-functional testing services across telecommunications platforms, services, and applications within a complex global environment. This role focuses on defining and executing performance testing strategies across Cloud, CRM, Middleware, microservices, and cloud-native platforms while ensuring quality, efficiency, and adherence to agreed milestones. The successful candidate will contribute to testing automation, performance analysis, stakeholder engagement, and continuous improvement initiatives across multinational delivery teams.

What you will do

• Understand telecommunications technology stacks, delivery approaches, and strategic initiatives to define effective performance testing strategies.
• Deliver testing projects and ensure efficient execution of non-functional testing activities.
• Develop dynamic performance test scripts and scenarios using industry-standard tools.
• Execute and coordinate performance tests and communicate outcomes to stakeholders and vendor partners.
• Follow established testing processes, metrics, reporting standards, and governance requirements.
• Drive improvements in automation and identify opportunities to increase testing efficiency and reusability.
• Develop and maintain non-functional testing strategies aligned to project risks, schedules, and testing objectives.
• Collaborate with application, development, and operations teams to investigate and resolve performance-related issues.
• Ensure quality, consistency, and accuracy of all testing deliverables.
• Promote reusability of test assets, scripts, datasets, and test frameworks across projects.
• Identify, capture, track, and support resolution of defects through agreed defect management processes.
• Contribute to lessons learnt activities and recommend improvements to testing methodologies and standards.
• Communicate project status, risks, issues, and test outcomes to relevant stakeholders and leadership teams.
• Support the Test Lead and Test Service Manager in delivering testing services aligned with agreed methodologies and service levels.

Who you are

• Proven experience delivering performance testing solutions within large-scale, multinational environments.
• Hands-on expertise with performance testing tools such as LoadRunner, JMeter, SOAP UI, Gatling, or equivalent technologies.
• Experience testing across multiple protocols and enterprise platforms.
• Knowledge of CI/CD environments and tools including Azure DevOps, Jenkins, GitHub, Maven, and related technologies.
• Experience with Kubernetes, microservices architectures, AWS Cloud, and Oracle OCI environments.
• Strong performance test scripting, execution, and results analysis capabilities.
• Understanding of non-functional requirements and volumetric analysis.
• Working knowledge of Java, C, VB Macros, SQL, and shell scripting to customise testing solutions.
• Understanding of Java/JVM architecture, garbage collection, class loading, thread dumps, and database performance analysis.
• Experience using application performance monitoring and diagnostics tools such as Dynatrace, AppDynamics, CA Wily, HP Diagnostics, or similar solutions.
• Ability to interpret technical findings and communicate insights clearly to both technical and business audiences.
• Knowledge of supporting tools such as Fiddler, Firebug, HAR, and Lighthouse is advantageous.
• Strong interpersonal, collaboration, and communication skills.
• Commitment to quality with a structured and methodical approach.
• Ability to work effectively in diverse and multicultural environments.
• Fluent English communication skills.
• Demonstrated ability to deliver results, adapt to change, and maintain a customer-focused mindset.

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 within a global telecommunications and technology environment.
• Exposure to large-scale digital transformation, cloud adoption, and enterprise performance engineering initiatives.
• Collaboration with international teams, stakeholders, and technology partners.
• Opportunities to contribute to automation, innovation, and continuous improvement programmes.
• Exposure to modern cloud, microservices, and DevOps ecosystems.
• Potential opportunities for international engagement and collaboration across Vodafone markets.

What skills you will learn

• Advanced performance engineering and non-functional testing methodologies.
• Cloud performance testing across AWS, Oracle OCI, and cloud-native environments.
• CI/CD integration and DevOps-driven testing practices.
• Application performance monitoring, diagnostics, and root cause analysis.
• Telecom domain expertise across enterprise platforms and services.
• Stakeholder management, vendor coordination, and cross-functional collaboration.
• Performance analysis for microservices, databases, and distributed systems.
• Test automation optimisation and reusable framework development.

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 be truly be yourself and belong, share inspiration, embrace new opportunities, thrive, and make a real difference.

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