QA Engineer (Manual & Automation)

We are looking for a QA Engineer with a strong focus on test automation, API testing, and performance validation, capable of ensuring the quality of modern web applications in high-demand environments.

This role requires autonomy in managing testing environments, defining QA strategies, and making critical release decisions. You will work in an agile, collaborative environment, partnering with engineering and product teams to continuously improve quality practices and ensure reliable deliveries.

• Execute end-to-end testing cycles including functional, regression, integration, and smoke testing across web applications (including responsive/mobile views).
• Design, develop, and maintain E2E automation frameworks using Playwright.
• Build clean, robust, and reusable automation scripts aligned with the existing architecture.
• Validate REST APIs using Postman, including scripting, environment management, and advanced validations.
• Design and execute performance, load, and stress tests to ensure system stability under high demand.
• Identify performance bottlenecks and collaborate with engineering teams to optimize system behavior.
• Actively participate in Agile ceremonies, ensuring stories are testable and meet clear acceptance criteria.
• Design test strategies, test cases, and validation plans covering dependencies and edge cases.
• Manage defects end-to-end: identification, documentation, tracking, and validation of fixes.
• Integrate automated testing into CI/CD pipelines to enable continuous feedback.
• Manage repositories using Git, including branching strategies, commits, and conflict resolution.
• Handle deployments and environment management through GitHub, ensuring QA autonomy.
• Organize and execute regression, smoke, and sanity testing, making informed release decisions.
• Promote QA best practices such as shift-left testing, testing pyramid, and quality metrics tracking.

• Strong experience in QA with a focus on web-based applications.
• Proven experience building and maintaining automation frameworks using Playwright.
• Proficiency in JavaScript or TypeScript for test automation.
• Hands-on experience with API testing using Postman (request creation, scripting, validations).
• Experience in performance, load, and stress testing methodologies.
• Advanced knowledge of Git (branching, commits, conflict resolution).
• Experience using GitHub, including Pull Requests and environment management.
• Ability to design clear, structured, and scalable test cases for automation.
• Solid understanding of Agile methodologies and SDLC processes.
• Experience with cross-browser and mobile testing tools (e.g., BrowserStack).
• Excellent English skills

Nice to Have

• Experience with performance testing tools such as Gatling, JMeter, or k6.
• Experience working with cloud environments (GCP or similar).
• Experience with media platforms, video workflows, or real-time systems.
• Familiarity with integrating automated testing into CI/CD pipelines.

Soft Skills

• Strong resilience and ability to perform under pressure without compromising quality.
• Critical thinking and strategic mindset to improve QA processes.
• Self-learner with a proactive approach to continuous improvement.
• Strong ownership and autonomy in decision-making.
• Excellent communication and collaboration skills across technical and non-technical teams.

At Devsu, we believe in creating an environment where you can thrive both personally and professionally. By joining our team, you’ll enjoy:

• Health insurance and education stipend

• A flexible Paid Time Off (PTO) policy as well as paid holiday days

• Challenging, world-class software projects for clients in the US and LatAm

• Collaboration with some of the most talented software engineers in Latin America and the US, in a diverse work environment

Join Devsu and discover a workplace that values your growth, supports your well-being, and empowers you to make a global impact.