We are looking for a highly skilled Senior Performance Testing Engineer to spearhead the design, execution, and analysis of performance testing strategies for scalable, high-performance systems.
In this role, you will develop and optimize performance testing frameworks, identify and resolve bottlenecks in web applications and APIs, and collaborate with cross-functional teams to ensure our technology meets the highest standards of reliability and scalability.
We accept CVs in English only.
Responsibilities
- Provide technical expertise in defining and implementing performance testing strategies, frameworks, and plans
- Conduct comprehensive performance, load, stress, and endurance testing for web applications and backend APIs
- Develop realistic workload models based on architecture and production usage patterns
- Analyze and interpret performance test results using tools like k6 and , identifying key performance metrics
- Investigate and resolve performance bottlenecks across application, infrastructure, database, and network layers
- Integrate performance test suites into CI/CD pipelines to ensure ongoing scalability and reliability
- Utilize Grafana with InfluxDB to capture and visualize performance metrics for trend analysis and reporting
- Monitor system resource utilization (CPU, memory, disk, network) during tests and identify misconfigurations
- Automate performance testing processes, including test execution and reporting workflows, using scripting or programming tools like TypeScript or PowerShell
- Collaborate with stakeholders to identify performance risks early and propose actionable solutions
- Lead or contribute to performance tuning initiatives, ensuring the system meets required SLAs and scalability requirements
- Mentor and guide team members to foster a performance-first mindset and skills development
Requirements
- Proven experience of over 3 years in performance testing of web applications, APIs, and backend services
- Strong knowledge of performance testing methodologies and best practices
- Hands-on expertise with k6; familiarity with is a plus
- Proficiency in analyzing test outcomes with metrics like percentiles, distributions, and system resource utilization
- Experience using Grafana and InfluxDB for performance monitoring, visualization, and reporting
- Knowledge of SQL with capabilities in query performance analysis and optimization
- Competency in diagnosing and addressing bottlenecks across application, network, OS, and database layers
- Understanding of infrastructure configurations, load balancing, and system monitoring tools
- Skills in scripting or programming (e.g., TypeScript, PowerShell) for extending performance tests and custom automation
- Experience integrating tests into CI/CD workflows with automated reporting tools
- Strong communication skills in business English (B2 level or higher) to present findings to both technical and non-technical audiences
Nice to have
- Familiarity with Prometheus for advanced monitoring and alerting
- Experience with testing and optimization in REST and SOAP-based services
- Working knowledge of for performance analysis and insights
- Experience mentoring team members and promoting a performance-focused culture
We offer
- Learning Culture - We want you to be the best version of yourself, that is why we offer unlimited access to learning platforms, a wide range of internal courses, and all the knowledge you need to grow professionally
- Health Coverage - Health and wellness are important, that is why we have you and up to four family members in a premiere health plan.
We have a couple of options, so you can choose what is best for you and your family - Visual Benefit - Seeing your work for us would be a sight for sore eyes.
We want your vision to always be at 100% which is why we offer up to $ COP for any visual health expenses - Life Insurance Plan - We have partnered with MetLife to offer a full-coverage Ife insurance plan.
So, your family is covered, even if you are gone.
- Medical Leave Coverage - We are one of the few companies that cover 100% of your medical leave, for up to 90 days.
Your health is the most important thing to us - Professional Growth Opportunities - We have designed a highly competitive and complete development process, where you will have all the tools to get where you have always wanted to be, personally and professionally
- Stock Option Purchase Plan - As an EPAMer you can be more than just an employee, you will also have the opportunity to purchase stock at a reduced price and become a part owner of our organization
- Additional Income - Besides your regular salary, you will also have the chance to earn extra income by referring talent, being a technical interviewer, and many more ways
- Community Benefit - You will be part of a worldwide community of over 50,000 employees, where you can learn, challenge yourself, stand out, and share your knowledge and experience with multicultural teams
Please note that even though you are applying for this position, you may be offered other projects to join within EPAM.
EPAM is a leading global provider of digital platform engineering and development services.
We are committed to having a positive impact on our customers, our employees, and our communities.
We embrace a dynamic and inclusive culture.
Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow.
No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.