Senior QA Performance Engineer – k6, CI/CD, Hybrid

ERNI; Barcelona; Híbrido; EUR 60.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Certifications covered up to €1,500

Private health insurance

Full sick leave coverage

Emotional, legal, family support

Gym discounts

Flexible remuneration

Referral bonuses

23 vacation days

Language courses

Descripción de la vacante

ERNI Spain seeks a performance testing engineer to ensure the reliability of a large-scale laboratory platform. You will design realistic performance scenarios using k6, JMeter or Gatling and contribute to scalable testing strategies across the full platform ecosystem.

Join a collaborative team that values growth, mentoring, and hands-on work with Grafana, Prometheus, and other observability tools. The role is hybrid, with some office days and strong support for career development.

Formación

• 4+ years of experience in performance and load testing using k6, JMeter or Gatling.
• Strong programming skills with JavaScript/TypeScript and experience with Python and/or Java.
• Experience building CI/CD pipelines with GitHub Actions and working with Git based pull request workflows.
• Hands on experience with Grafana, Prometheus, Loki, Tempo or equivalent observability platforms to analyze system behavior.

Responsabilidades

• Design realistic performance scenarios and testing strategies based on architecture and business flows.
• Maintain containerized environments, internal libraries and automated executions through GitHub Actions.
• Analyze system behavior through logs, metrics and traces while identifying bottlenecks and regressions.

Conocimientos

Performance testing

K6

JMeter

Gatling

JavaScript/TypeScript

Python/Java

CI/CD pipelines

GitHub Actions

Git workflows

Observability

Grafana

Prometheus

Loki

Tempo

Logs & metrics

Herramientas

GitHub Actions

Grafana

Prometheus

Loki

Tempo

CI/CD tooling

Descripción del empleo

ERNI Spain seeks a performance testing engineer to ensure the reliability of a large-scale laboratory platform. You will design realistic performance scenarios using k6, JMeter or Gatling and contribute to scalable testing strategies across the full platform ecosystem.

Join a collaborative team that values growth, mentoring, and hands-on work with Grafana, Prometheus, and other observability tools. The role is hybrid, with some office days and strong support for career development.