Senior Software Development Engineer Test

Summary

Join EarnIn as an experienced SDET to contribute to the design and development of test automation for our products. You will play a key role in ensuring product quality and enhancing user experience. This hybrid position, based in Mexico City with remote options, offers excellent benefits. You will collaborate with cross-functional teams, implement best practices in testing, and contribute to a quality-first culture. EarnIn is a fast-growing company with a strong leadership team and significant funding, offering opportunities for professional growth and development.

Requirements

• 4+ years of experience in mobile and web testing, focusing on automation
• Strong expertise in defining, designing, developing, and maintaining scalable test automation frameworks
• Hands-on experience with industry-standard mobile and web testing tools such as XCUITest (iOS), Espresso (Android), and Playwright (Web)
• Experience writing and executing manual and automated test cases based on product specifications, Figma UI designs, and feature requirements
• Strong ability to efficiently identify and root cause automation test failures and application defects
• Proven experience supporting weekly release regression testing through automation and manual testing, providing reliable sign-offs
• Deep understanding of software development and product lifecycle, including release metrics and quality goals
• Experience working with globally distributed teams and coordinating testing efforts across different time zones
• Strong analytical, problem-solving, and debugging skills with the ability to make data-driven decisions
• Passion for continuous learning and the ability to quickly adapt to new technologies
• A BS in Computer Science or Computer Engineering or equivalent experience is required

Responsibilities

• Lead the design, development, and execution of comprehensive test plans and test cases across frontend (web & mobile), backend, APIs, and databases
• Implement best practices in manual and automated testing, ensuring high application quality, reliability, and performance standards
• Identify, document, and track software defects, inconsistencies, and areas for improvement with a data-driven and proactive approach to resolution
• Collaborate with developers, product managers, DevOps, and cross-functional teams to ensure requirements are well-defined and aligned with business objectives
• Design, develop, optimize, and maintain scalable test automation frameworks and test suites using tools like Playwright, Cypress, Selenium, Appium, Espresso, and REST Assured
• Integrate automated tests into CI/CD pipelines (Jenkins, GitHub Actions, CircleCI, etc.) to enable fast, reliable, and efficient deployments
• Analyze application performance metrics, conduct load, stress, and security testing, and provide insights for performance tuning and enhancements
• Conduct thorough regression, exploratory, and usability testing to validate system integrity and user experience across platforms
• Lead root cause analysis for complex failures, working closely with developers and DevOps engineers to ensure timely and effective resolutions
• Actively participate in sprint planning, daily stand-ups, and retrospectives, contributing expertise to improve team efficiency and delivery cadence
• Mentor and guide junior QA engineers, fostering a culture of continuous learning, innovation, and a quality-first mindset
• Work with globally distributed teams and coordinate testing efforts across different time zones
• Stay current with advancements in full-stack automation testing, AI-driven testing tools, and DevOps practices

Benefits

• Healthcare
• Internet/cell phone reimbursement
• A learning and development stipend
• Potential opportunities to travel to our Palo Alto HQ