Job Title : Senior Performance Testing Engineer / Performance Engineer

Experience : 8 - 10 Years

Location : Gurgaon (Onsite)

Working Hours : 12 : 00 PM 9 : 00 PM IST

Job Type : Full-Time

About ElevenX Capital :

ElevenX Capital is a venture studio and venture capital fund that builds companies from the ground up. Founded in 2014 by serial entrepreneur Anjli Jain, ElevenX redefines the traditional venture capital model by combining ideas, capital and talent to create and scale companies across various sectors, including cybersecurity, artificial intelligence, and education and workforce management. The firm brings together experienced entrepreneurs and value creation specialists in marketing, sales, engineering, talent, legal and finance to support the development of new ventures from inception to scale.

Job Summary :

We are seeking a highly skilled Performance Testing Engineer with 810 years of experience in performance engineering across complex web and mobile applications. The ideal candidate should have strong technical expertise in React.js, React Native, Node.js, Spring Boot, Java, along with deep knowledge of MongoDB, MySQL, and experience with AWS infrastructure, profiling, and monitoring tools.

Key Responsibilities :

- Plan, design, and execute performance tests (load, stress, endurance, scalability) for frontend, backend, and database layers.

- Develop automated performance test scripts using tools such as JMeter, k6, Gatling, Locust, etc.

- Conduct Java/Node.js profiling using VisualVM, JFR, YourKit, and analyze JVM metrics (GC, heap, threads).

- Perform network simulation and latency analysis; troubleshoot application response issues.

- Monitor and optimize application performance on React, React Native, backend Node.js, Spring Boot/Java, and databases (MongoDB, MySQL).

- Define and track server KPIs : CPU, memory, I/O, latency, throughput, GC performance, and thread utilization.

- Utilize tools like New Relic, Dynatrace, Grafana, Prometheus, ELK, or AWS CloudWatch for end-to-end monitoring.

- Collaborate with development, QA, DevOps, and architecture teams to recommend tuning strategies and resolve performance bottlenecks.

- Ensure scalable, fault-tolerant architecture design in AWS cloud environments.

Required Skills & Qualifications :

- Bachelor's or Master's degree in Computer Science, Engineering, or a related field.

- 8 - 10 years of solid experience in performance testing, tuning, and analysis.

- Strong command of React.js, React Native, Node.js, Java, Spring Boot.

- In-depth experience with MongoDB and MySQL, including performance analysis and tuning.

- Proficient in scripting and automating performance tests (e.g., Bash, Python, Groovy).

- Sound understanding of cloud performance engineering on AWS (EC2, ELB, Auto Scaling).

- Ability to interpret performance results and provide actionable insights.

- Familiarity with CI/CD pipelines and integration of performance tests in Jenkins/GitLab.

Preferred Skills :

- AWS Certification or Performance Engineering certifications.

- Experience in SaaS, microservices, or container-based (Docker/Kubernetes) ecosystems.

- Prior exposure to Agile environments and performance in CI/CD workflows.