Senior QA Engineer (SDET) – AI, API & Automation

Definity; Fremont (CA); On-site; MXN 2,036,000 - 3,054,000; Full time

Job summary

Definity is seeking a Senior Software QA Engineer for a relocation opportunity to the United States (Fremont, CA). The role combines manual and automated testing across web, mobile, and API platforms, and requires strong English communication with international teams.

You will design, develop, and execute advanced test suites, implement cross-platform test strategies, and lead test efforts. Proficiency in Python/Go/Typescript, Selenium, Playwright, Cypress, Appium, and API testing is essential.

Qualifications

• 3+ years of experience as a SDET/QA Engineer (Manual & Automation) or similar.
• Experience with Python, Go, and TypeScript.
• Experience with web, mobile and API validation.
• Strong understanding of test automation frameworks: Playwright, Selenium, Cypress, Appium, Zephyr or similar.
• Proficiency in writing and executing SQL queries for test validation.
• Knowledge of log analysis using Splunk for troubleshooting and monitoring.
• Experience with API testing using Postman or similar tools.
• Degree in Computer Science or equivalent experience.
• Advanced English – able to communicate effectively in meetings and with international teams.

Responsibilities

• Design, develop and execute advanced test suites.
• Implement and execute test strategies across platforms and languages to improve quality and coverage.
• Responsible for functional and automated testing.
• Write backend integration tests and tests for RESTful APIs.
• Develop frameworks and automated tests using Selenium and Python.
• Design and develop integration, regression, and stress tests using industry standard tools.
• Use and integrate AI tools to improve work.
• Collaborate with engineers and PMs to translate requirements into test cases.
• Define, implement, and maintain test plans and test suites.
• Provide technical leadership to initiate and drive large-scale programs.

Skills

SDET

QA Engineer

Manual testing

Automation testing

Python

Go

Typescript

Web testing

Mobile testing

APIs validation

Test automation frameworks

SQL queries

Splunk

Postman

Computer Science degree

English

Education

Degree in Computer Science or equivalent

Tools

Selenium

Playwright

Cypress

Appium

Zephyr

Postman

SQL

Splunk

Job description

Definity is seeking a Senior Software QA Engineer for a relocation opportunity to the United States (Fremont, CA). The role combines manual and automated testing across web, mobile, and API platforms, and requires strong English communication with international teams.

You will design, develop, and execute advanced test suites, implement cross-platform test strategies, and lead test efforts. Proficiency in Python/Go/Typescript, Selenium, Playwright, Cypress, Appium, and API testing is essential.