SDET - Performance Engineer

We are partnering with an industry-leading SaaS provider to find a talented Software Performance Test Engineer for their Performance Engineering team. In this role, you will ensure the quality of the performance, scalability, and reliability of their software applications. You’ll collaborate closely with cross-functional teams, design and execute performance tests, identify bottlenecks, and recommend optimizations to enhance user experience.

Location: Hybrid (on-site at least two days per week in Prague, Czech Republic)

Responsibilities

• Design and execute comprehensive performance test strategies and plans across the software and hardware stack, aligned with business and scalability objectives.

• Conduct end-to-end performance, load, stress, and scalability testing for core platform features and services.

• Develop and maintain performance test scripts using industry-standard tools and frameworks such as LoadRunner, JMeter, Artillery, K6, and Gatling.

• Integrate performance testing into CI/CD pipelines utilizing tools like GitHub Actions and Jenkins.

• Use monitoring and observability tools (Grafana, Datadog) to analyze test results, identify system bottlenecks, and collaborate with engineering teams for resolution.

• Set up and manage test environments, leveraging cloud platforms (AWS, Google Cloud) and containerization (Docker, Kubernetes).

• Apply a scientific, data-driven approach to systematically break down complex performance issues into actionable insights.

• Work with system architects and infrastructure teams to optimize software and hardware configurations.

• Provide regular reports and detailed performance metrics to stakeholders, highlighting key findings and recommendations.

• Stay current with the latest trends in design patterns, coding practices, and test automation, proactively incorporating new approaches to enhance product effectiveness.

• Maintain clear, effective communication (verbal, technical, and written) with engineering, product, and architecture teams.

Requirements

• 4+ years of experience in software performance testing, ideally within a SaaS or enterprise software environment.

• Strong understanding of performance testing methodologies and best practices.

• Proficiency with performance testing tools (e.g., LoadRunner, JMeter) and programming/scripting languages (Java, Python).

• Proven experience with web technologies (HTTP, REST APIs) and APM tools such as Datadog or Grafana.

• Practical knowledge of DevOps principles and CI/CD pipelines, with hands-on use of GitHub Actions or Jenkins.

• Strong analytical skills, attention to detail, and the ability to troubleshoot performance issues.

• Excellent communication skills, with a collaborative approach to problem solving.

• Demonstrated ability to manage multiple priorities in a fast-paced environment.

• Work authorization for Prague, Czech Republic is required.

Benefits

Flex funds

• Monthly allowance for flexible benefits

• Choose from food, caregiving, connectivity, fitness, wellness and more

Vacation

• 20 days paid; global minimum provided and varies by country

• Flexible scheduling

Birthing parent leave

• 14 weeks paid

• 100% base salary

• 3 week return-to-work program

Non-birthing parent leave

• 8 weeks paid

• Includes partners, paternity, adoption, surrogacy, foster care

• 100% base salary

• 3 week return-to-work program

Global Employee Assistance Program

• 10 coaching and 10 therapy sessions, free to employees

• Includes coaching, mindfulness, meditation and more

Collibra swag store

• Annual employee stipend to get free Collibra gear!

• New environmentally sustainable releases throughout the year

Short-term medical / sick leave

• 4 weeks paid

• 100% base salary

Caregiver leave

• 4 weeks paid

• 100% base salary

Bereavement time off

• 10 days paid

• 100% base salary

Our values

We are a company that seeks the best for both our employees and clients, reaching beyond expectations in turning dreams into reality. Our way of working is rooted in our core values (Integrity, Excellence, Proactivity, Innovation, and People), with an expectation that our future colleagues will make these their second nature in their everyday work and life. We don’t ask for perfection, but we do appreciate people motivated to better themselves in every conceivable aspect.

About IT Labs

Founded in 2005, IT Labs is an international software tech company, specializing in purpose and process-driven teams for high-performance, innovation, transformation, and efficiency. Our HQ is in Palm Beach Gardens, Florida, and we have teams around the world - the UK, the Netherlands, Brazil, Argentina, Serbia, Croatia, BIH, Montenegro, North Macedonia, and the Middle East. We are constantly growing, and we would love for you to become part of our team!