Hybrid QA Automation Engineer – Web, Mobile, API

at HydroNeo

• Job title: QA Automation Engineer – Web, Mobile, API
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: €1,600 per month
• Degree requirement: Bachelor's Degree
• Tech skills: Android, iOS, Java, JMeter, JUnit, Kafka, NoSQL, Selenium, SQL
• Location requirements: Hybrid, Bangkok, Thailand

About the role

• QA Automation Engineer designing automated tests for web, mobile, and API applications in an IoT startup. Collaborating with teams to ensure high-quality software releases in a hybrid work environment.

Responsibilities

• Design, develop, and maintain web UI automated test scripts using Selenium, Cucumber (BDD), Java, and JUnit/TestNG
• Implement and enhance data-driven and BDD test frameworks to support scalable and maintainable automation suites
• Validate business logic, data integrity, and backend operations by writing and executing SQL/NoSQL queries and performing database validation
• Perform basic API security testing, including checks for SQL injection, input validation, and token expiry handling
• Conduct non-functional testing (load, performance, reliability) using tools such as JMeter or k6, and analyze performance metrics to identify bottlenecks and risks
• Design, implement, and execute mobile web and native app automation tests using Appium, Selenium, Cucumber (BDD), Java, TestNG, and Xcode for Android/iOS
• Plan, design, and execute test scenarios (positive, negative, boundary, and end-to-end) based on user stories and acceptance criteria
• Collaborate closely with developers, product owners, and business teams to clarify requirements, triage defects, and ensure high-quality releases
• Participate in Agile/Scrum ceremonies (daily stand-ups, sprint planning, reviews, retrospectives) and keep all QA documentation up to date
• Support and execute System Integration Testing (SIT) across APIs, Kafka, and MQTT-based systems

Requirements

• Bachelor/Master’s degree in Computer Science or related fields
• Proven experience in Web UI test automation using Selenium, Cucumber (BDD), Java, and JUnit or TestNG
• Solid understanding of data-driven and BDD test frameworks and best practices in test automation architecture
• Experience validating backend processes and data integrity using SQL and/or NoSQL queries
• Basic knowledge of API security testing concepts such as SQL injection, input validation, and token/session expiry
• Hands-on experience with non-functional testing (load, performance, reliability) using tools like JMeter or k6, including performance metrics analysis
• Experience in mobile automation testing (web and native) with Appium, Selenium, Cucumber (BDD), Java, TestNG, and Xcode for Android/iOS platforms
• Strong understanding of RESTful APIs: endpoints, HTTP methods (GET, POST, PUT, DELETE), status codes, headers, parameters, and response payload structures
• Proficiency with tools such as Postman, Swagger, and/or MQTT Explorer for manual API and integration testing
• Demonstrated ability to design and execute positive, negative, boundary, and end-to-end test cases from user stories and acceptance criteria
• Experience creating and executing test plans, defining test data strategies, and ensuring comprehensive test coverage
• Hands-on experience with System Integration Testing (SIT) involving APIs, Kafka, and MQTT-based systems is a plus
• Strong communication and collaboration skills, with the ability to work effectively across engineering, product, and business teams

Benefits

• Employee Stock Options (ESOP) to financially participate in the success of the company
• Flexible work environment (e.g. office hours) with a focus on results
• Meaningful work in an award-winning startup with the opportunity of creating real impact
• Close collaboration with the leadership team and low hierarchies
• International work environment in a great team of 10+ nationalities
• Very steep learning curve due to our open and performance-based culture
• Great office in central location