Senior AQA (JavaScript/TypeScript) Engineer (Performance Focus)

Senior AQA (JavaScript/TypeScript) Engineer (Performance Focus)

Location: Remote from Spain

Language: Spanish fluency, English Upper-intermediate

Project Overview

Join a high-impact engineering team involved in migrating from a legacy Microsoft Dynamics 2013 system to a modern, high-performance platform. The architectural groundwork is done, and we are entering the live-testing and optimization phase. We're looking for a Senior QA Engineer with deep experience in performance testing and automated testing frameworks, particularly using JavaScript/TypeScript and Playwright.

Your Responsibilities

• Design and execute performance test scenarios (load, stress, and endurance).
• Build and maintain automated test frameworks using TypeScript + Playwright.
• Identify system bottlenecks and collaborate with dev teams on optimizations.
• Monitor performance across production and pre-production environments.
• Embed performance tests into CI/CD pipelines to support continuous delivery.
• Work closely with QA, development, and business teams to align testing goals.

What We're Looking For

• Fluent in Spanish.
• Solid experience with automated E2E testing using TypeScript and Playwright.
• Proven track record in performance testing of complex web applications.
• Familiarity with payment system integration (Skrill, Stripe, PayPal, etc.).
• Good knowledge of testing best practices, Git, and CI/CD pipelines.
• Strong communication and teamwork skills.
• Agile/Scrum experience.

️ Nice to Have

• Experience with K6 for performance testing.
• Previous work in the gaming or payment industry.
• Exposure to API testing and monitoring tools.