Senior Performance Engineer

Nexaminds · Mexico · Engineering

Posted 2026-08-27

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Nexaminds is actively seeking a Senior QA Engineer specializing in Automation and Performance Testing to join our dynamic engineering team. In this role, you will lead efforts to design, implement, and maintain

robust test automation frameworks and performance testing strategies. You will collaborate closely with developers, product managers, and other QA engineers to ensure the delivery of high-quality, scalable, and

performant software products.

Location: MEXICO (remote)

Qualifications we are looking for:

5+ years of industry experience, with a focus on designing frameworks and quality-related tooling or services.

Extensive experience developing test automation frameworks and performance testing strategies.

Proficiency with automation tools like WebDriverIO, Playwright, Protractor.

Hands-on experience with performance testing tools like K6, JMeter or Gatling.

Strong programming skills in languages like, TypeScript, JavaScript

Knowledge of CI/CD pipelines and experience integrating automation with tools like Jenkins or GitHub Actions.

Solid understanding of Agile methodologies and QA processes.

Proven ability to debug complex issues and collaborate effectively with cross-functional teams.

Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).

Nice to have:

Experience scaling large web applications and maintaining high availability services

Familiarity with microservices architecture and containerization tools like Docker and Kubernetes.

Knowledge of E-Commerce and subscription systems

Experience with AWS is desirable

Knowledge or experience of E-Commerce systems, Product Information Management (PIM) solutions

Working experience with ElasticSearch

Familiar with third-party backend API integrations

ISTQB or similar QA certifications.

Experience with Netlify environments

Job duties:

Designing, developing, and maintaining scalable and reusable test automation frameworks for UI, API,

and integration testing.

Writing and executing automated test scripts using tools like SpeedScale, WebdriverIO, K6 or Gatling

Developing and executing performance testing strategies using tools like JMeter, SpeedScale or Gatling.

Analyzing performance test results and collaborating with development teams to identify and resolve bottlenecks.

Leading test efforts by assigning tasks, running status meetings, and participating in sprint planning.

Collaborating with cross-functional teams to align testing strategies with business goals and ensure

high-quality releases.

Driving improvements in test coverage across unit, functional, and load tests.

Identifying, tracking, and resolving software defects using tools like Jira or AWS DevOps.

Mentoring junior QA engineers in best practices for automation and performance testing.

Staying updated on industry trends and advocating for process improvements to enhance the software

development lifecycle.

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