Principal Performance Test Engineer

In Waters, the Informatics group produce software that is used by people worldwide for specialist measurement and scientific analysis. We are currently seeking a Principal Performance Test Engineer to work with the engineering teams across our Cloud portfolio. We work in a collaborative, agile environment, where team members are empowered to innovate and continually improve. We believe strongly in the value of personal development, and provide support and dedicated time for our people to pursue this.

• Implement performance testing strategy including load, stress, soak, and spike testing 

• Develop and maintain performance test scripts and scenarios using tools such as JMeter and K6. 

• Execute tests across distributed systems and microservices to identify bottlenecks and capacity limits 

• Analyse test results and provide actionable insights to development and architecture teams. 

• Define and track key performance metrics such as throughput, latency, and error rates  

• Collaborate with Infrastructure team to integrate performance testing into CI/CD pipelines. 

• Document test plans, results, and recommendations clearly and concisely. 

What will make you a successful Principal Performance Test Engineer at Waters:

• Proven experience in performance testing of cloud-native applications. 

• Strong understanding of system architecture, microservices, and event-driven systems. 

• Proficiency in scripting and automation (e.g., JavaScript for k6, Groovy for JMeter). 

• Familiarity with monitoring tools (e.g., Datadog). 

• Experience with test data management and environment configuration. 

• Ability to interpret system metrics and logs to diagnose performance issues. 
• Experience with container orchestration platforms (e.g., Kubernetes). 
• Knowledge of performance profiling and tuning techniques. 
• Exposure to agile methodologies and shift-left testing principles.
• ISTQB Performance Testing certification or equivalent. 

In return you will receive:

• A plan for your personal development in your own area of specialism, pursuing this with the support of your manager to undertake the training and learning to progress.
• Competitive salary
• Good annual leave allowance 
• Private health insurance
• Private life insurance
• Bookster access (an online library)
• Meal tickets
• 10% self study (4 hours per week study time)
• Glasses reimbursement
• EAP program

We're actively building diverse teams and welcome applications from everyone. But simply having a diverse workforce is not enough. We aim to build an inclusive environment, where everyone can contribute their best work and develop to their full potential. We celebrate our differences and recognise the importance of teams reflecting the communities they serve.

We can make reasonable adjustments to our interview process according to your needs.

Waters Corporation (NYSE:WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies, informatics, and service. With a focus on regulated, high-volume testing environments, our innovative portfolio harnesses deep scientific expertise across chemistry, physics, and biology. We collaborate with customers around the world to advance the release of effective, high-quality medicines, ensure the safety of food and water, and drive better patient outcomes by detecting diseases earlier, managing routine infections, and combating antibiotic resistance. Through a shared culture of relentless innovation, our passionate team of ~16,000 colleagues turn scientific challenges into breakthroughs that improve lives worldwide. 

Diversity and inclusion are fundamental to our core values at Waters Corporation. It benefits our employees, our products, our customers and our community. Waters complies with all applicable federal, state, and local laws. Qualified applicants are considered without regard to sex, race, color, ancestry, national origin, citizenship status, religion, age, marital status (including civil unions), military service, veteran status, pregnancy (including childbirth and related medical conditions), genetic information, sexual orientation, gender identity, legally recognized disability, domestic violence victim status, or any other characteristic protected by law. Waters is proud to be an equal opportunity workplace and is an affirmative action employer. All hiring decisions are based solely on qualifications, merit, and business needs at the time.