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Cozzera
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Performance Tester

Performance Tester

Cozzera

6 years

0 Lacs

india

Posted:21 hours ago| Platform:

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Skills Required

scalability stability testing profiling monitoring design microservices development analyze node.js test jmeter gatling loadrunner devops engineering jenkins github gitlab software api metrics network agile aws azure architecture scripting python automation data

Work Mode

Remote

Job Type

Full Time

Job Description

Position: Performance Tester

Experience: 6+ Years

Location: Remote

Employment Type: Full-time

About the Role

Performance Tester

Key Responsibilities

Design, develop, and execute
performance, load, stress, and endurance tests
for enterprise-scale applications.
Conduct
end-to-end performance testing
of
eCommerce platforms
including APIs, microservices, and front-end layers.
Identify performance bottlenecks and provide actionable recommendations to development and infrastructure teams.
Utilize
APM tools
(e.g., New Relic, Dynatrace, Grafana, Prometheus) to monitor application health and analyze system behavior.
Perform
profiling and diagnostics
of backend systems (JVM, Node.js, Go) to identify issues like GC pauses, thread contention, or CPU bottlenecks.
Develop and maintain
performance test scripts and frameworks
using JMeter, Gatling, k6, LoadRunner, BlazeMeter, or OctoPerf.
Collaborate with DevOps and Engineering teams to integrate performance tests into
CI/CD pipelines
using Jenkins, GitHub Actions, or GitLab CI.
Prepare detailed
performance reports
, test summaries, and trend analyses for stakeholders.

Required Skills & Experience

6+ years
of hands-on experience in
software performance testing
and
system profiling
.
Proven experience with
eCommerce application performance testing
(web, API, and backend layers).
Strong expertise in one or more performance testing tools:
JMeter, Gatling, k6, LoadRunner, BlazeMeter, or OctoPerf
.
Experience with
APM and monitoring tools
such as
New Relic, Dynatrace, Grafana, Prometheus, AppDynamics
, etc.
Deep understanding of
application profiling
for
JVM, Node.js, or Go-based systems
.
Proficiency in analyzing system-level metrics:
CPU, memory, I/O, GC, thread dumps
, and
network performance
.
Solid grasp of
CI/CD pipelines
and tools (
Jenkins, GitHub Actions, GitLab CI
).
Experience working in
Agile/Scrum
development environments.

Good-to-Have Skills

Familiarity with
Kubernetes
,
Docker
, and
cloud platforms (AWS/Azure/GCP)
.
Knowledge of
APIs, microservices, and distributed architecture performance patterns
.
Experience in
scripting (Python, Bash, Groovy, or JavaScript)
for automation and data generation.
Exposure to
chaos testing
or
resiliency engineering
tools (Gremlin, LitmusChaos).

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