Senior Performance QA Engineer (C#, JS)

Luxoft; India; On-site; INR 1,800,000 - 2,300,000; Full time

Job summary

Luxoft India is looking for a Senior Performance Testing QA Engineer with a strong background in Test Automation and Cloud-native applications. You will validate performance, scalability, and reliability of Capital Markets analytics platforms while driving quality engineering practices.

You will design and execute performance tests, build JMeter frameworks, develop automated solutions in C# and Selenium, analyze bottlenecks, and collaborate with Engineering, Product, and DevOps to define

Qualifications

• Proven experience as a Performance Test Engineer or similar role.
• Hands-on with JMeter, JavaScript scripting, C#, and Selenium WebDriver.
• Experience with load, stress, and capacity testing of distributed systems.
• AWS experience (EC2, ECS, CloudWatch) and CI/CD experience.

Responsibilities

• Design, develop, and maintain performance, load, stress, endurance, and scalability tests.
• Build and enhance JMeter frameworks and scripts.
• Develop automated test solutions using C# and Selenium WebDriver.
• Collaborate with cross-functional teams to define performance SLAs and produce reports.

Skills

JMeter

JavaScript

C#

Selenium WebDriver

AWS

ECS

EC2

CloudWatch

Performance Testing

Test Automation

CI/CD

Quality Engineering

Performance Engineering

Tools

GitHub Copilot

Docker

Kubernetes

Job description

Project description

We are looking for a Senior Performance Testing QA Engineer with a strong background in Test Automation and Cloud-native applications. In this role, you will be responsible for validating the performance, scalability, and reliability of the highly available Capital Markets analytics platforms while helping drive quality engineering best practices across the organization.

Responsibilities

• What You’ll Do
• Design, develop, execute, and maintain performance, load, stress, endurance, and scalability tests.Build and enhance JMeter test frameworks and scripts, including JavaScript-based scripting and customization.Develop and maintain automated test solutions using C# and Selenium WebDriver.Analyze application and infrastructure performance to identify bottlenecks, risks, and optimization opportunities.Collaborate with Engineering, Product, and DevOps teams to define and validate non-functional requirements and performance SLAs.Produce clear performance reports and recommendations for stakeholders.Contribute to CI/CD pipelines and drive automation of testing and reporting activities.Continuously improve performance engineering practices, tools, and processes.

SKILLS

Must have

• Proven experience as a Performance Test Engineer, NFR QA Engineer, or similar role.Strong hands-on expertise with:JMeter (JavaScript-based scripting)C#Selenium WebDriverSolid understanding of load, stress, scalability, capacity, and endurance testing methodologies.Experience with API performance testing and troubleshooting complex distributed systems.Knowledge of AI-assisted engineering tools such as GitHub Copilot.Hands-on AWS experience, including:EC2ECSCloudWatchStrong analytical, debugging, and problem-solving skills.Excellent communication and collaboration abilities.Skills: Performance Testing
• NFR Testing
• JMeter
• JavaScript
• C#
• Selenium WebDriver
• AWS
• ECS
• EC2
• CloudWatch
• Test Automation
• CI/CD
• Quality Engineering
• Performance Engineering

Nice to have

Experience with CI/CD tools such as Azure DevOps, TeamCity, Jenkins, GitHub Actions, or GitLab CI.Knowledge of Docker, Kubernetes, and containerized environments.Experience with observability tools such as Grafana, Prometheus, Splunk, or OpenTelemetry.Experience with Postman, Rest Assured, or LoadRunner.