Performance Testing Specialist - 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 an experienced Performance Testing Specialist to deliver high-quality non-functional testing services across telecommunications platforms, services, and applications within a global environment. This role focuses on defining performance testing strategies, preparing and executing test plans and scripts, analysing results, and driving continuous improvement across Cloud, CRM, and Middleware domains. The successful candidate will collaborate with business stakeholders, product owners, developers, operations teams, and external partners to ensure solutions meet agreed quality, performance, scalability, and service objectives.

What you’ll do

Performance Testing Delivery

• Define and implement performance testing strategies aligned to business objectives, project risks, and delivery schedules.
• Understand telecommunications technology landscapes, delivery approaches, and strategic initiatives to determine appropriate testing methodologies.
• Gather requirements, develop dynamic test scripts and scenarios, execute performance tests, and communicate outcomes to stakeholders.
• Prepare and maintain test plans, test scripts, test data, and supporting documentation.
• Analyse performance test results and provide actionable recommendations using both technical and business-focused reporting.
• Support issue identification, troubleshooting, and resolution activities in partnership with application and development teams.
• Ensure all testing activities are delivered to agreed milestones, quality standards, timelines, and service levels.

Technical Leadership and Continuous Improvement

• Establish metrics, processes, governance standards, and reporting mechanisms for effective test delivery.
• Promote automation and identify opportunities to improve testing efficiency and coverage.
• Drive reusability of non-functional testing assets, including scripts, datasets, and frameworks.
• Contribute lessons learned, best practices, and process improvements to enhance overall testing capability.
• Mentor colleagues and support capability development across the testing community.
• Provide effort estimation and budget inputs for performance testing initiatives.

Technical Execution

• Design and execute performance tests using tools such as LoadRunner, JMeter, SOAP UI, and related technologies.
• Develop and customise scripts using C, Java, VB macros, SQL, and shell scripting where required.
• Perform volumetric analysis and validate non-functional requirements.
• Analyse Java/JVM performance, garbage collection behaviour, class loading, thread dumps, and database performance.
• Monitor and profile application environments using tools such as Dynatrace, AppDynamics, HP Diagnostics, and CA Wily.
• Support testing activities within CI/CD pipelines and cloud-based environments.
• Utilise supporting tools such as Fiddler, Firebug, HAR, and Lighthouse where applicable.

Stakeholder and Service Management

• Collaborate effectively with product owners, IT operations teams, development teams, and business stakeholders.
• Provide regular status updates and communicate risks, issues, and dependencies proactively.
• Support delivery in alignment with agreed testing methodologies, governance standards, and service expectations.
• Contribute to resource planning and recruitment activities in partnership with testing leadership teams.

Who you are

Essential Experience

• Proven experience delivering performance testing solutions within large-scale, multinational environments.
• Experience working in telecommunications, digital platforms, enterprise applications, or complex technology ecosystems.
• Strong expertise in performance test planning, scripting, execution, analysis, and reporting.
• Experience working within cloud-native environments and CI/CD delivery models.
• Demonstrated knowledge of performance monitoring, profiling, and root cause analysis.

Technical Skills

• Hands-on experience with LoadRunner, JMeter, SOAP UI, or equivalent performance testing tools.
• Knowledge of multiple protocols including Web HTTP and enterprise application technologies.
• Proficiency in Java, C, SQL, shell scripting, and automation techniques.
• Strong understanding of JVM architecture, garbage collection, thread analysis, and application performance diagnostics.
• Experience with Oracle and SQL Server database performance analysis.
• Familiarity with APM and monitoring solutions such as Dynatrace, AppDynamics, HP Diagnostics, and CA Wily.
• Understanding of non-functional requirements analysis and workload modelling.

Personal Attributes

• Strong communication and stakeholder management skills.
• Quality-focused with a structured and methodical approach.
• Ability to work effectively within multicultural and matrix-based organisations.
• Commitment to continuous learning and knowledge sharing.
• Ability to adapt within evolving technology and business environments.
• Fluent in English.
• Willingness to travel internationally, including occasional travel within Europe, where required.

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 large-scale telecommunications platforms and transformation programmes.Exposure to global stakeholders, international teams, and complex delivery environments.Experience working with modern cloud technologies, CI/CD practices, and enterprise-scale applications.Opportunity to contribute to testing strategy, automation innovation, and continuous improvement initiatives.Collaborative environment focused on professional development and knowledge sharing.Exposure to leading performance engineering and application monitoring technologies.

What skills you will learn

Advanced performance engineering and non-functional testing methodologies.Performance analysis across cloud-native, middleware, CRM, and enterprise application environments.Application monitoring and observability practices using industry-standard APM tools.Telecommunications domain expertise and large-scale platform performance optimisation.Stakeholder management, delivery governance, budgeting, and resource planning skills.Automation, scripting, and reusable framework development techniques.

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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