Loading profile…
Eliezer Castillo
Looking for a jobSenior QA Automation Engineer
I build AI-augmented web, mobile, and API test automation that speeds reliable releases.
El SalvadorSenior QA Automation Engineer at Very Good Ventures
Experience
Senior QA Automation Engineer
Executed smoke and regression test suites for release cycles, created and maintained BDD test scenarios in Gherkin, and performed manual testing of new features. Developed mobile automated tests with Appium and Java, simulated API responses with Charles Proxy, and built Claude-powered AI agents for test validation and repair.
AppiumJavaBDDGherkinCucumber StudioCharles ProxyClaudeAITesting AutomationMobile TestingAPI TestingRegression TestingSmoke Testing
QA Automation Engineer
Designed and maintained automated test scripts and frameworks using Selenium, Cypress, WebdriverIO, and Appium, and integrated them into CI/CD pipelines. Conducted REST API testing with Postman, performance testing with JMeter and Lighthouse, and reduced regression time by 40% and production defects by 27%.
SeleniumCypressWebdriverIOAppiumGitHub ActionsJenkinsPostmanJMeterLighthouseREST API TestingPerformance TestingCI CDTesting Automation
QA Analyst
Created and executed manual and automated test cases for web and mobile applications, performed functional, regression, and REST API testing with Postman, and documented defects in Jira. Built reusable automation scripts and regression test suites, and contributed to sprint planning and backlog grooming.
Manual TestingTesting AutomationPostmanREST API TestingJiraRegression TestingFunctional Testing
QA Trainee
Completed an intensive QA training program focused on software testing fundamentals, agile methodologies, and automation principles. Built hands-on proficiency with Selenium, Cypress, and Postman, and developed foundational skills in API, functional, and regression testing.
SeleniumCypressPostmanAPI TestingFunctional TestingRegression TestingTesting Automation
Data Processing Coordinator
Coordinated and supervised the collection, cleaning, and validation of survey and research data for national studies. Designed and programmed surveys, implemented data accuracy processes, managed databases, and generated reports for stakeholders.
Data CollectionData CleaningData ValidationSurvey DesignDatabase ManagementStatistical AnalysisReporting
Digit & MFS Intern
Strengthened Mobile Financial Services operations through data analysis and reporting. Monitored KPIs, extracted and reconciled data from internal databases, and developed NPS reports based on customer feedback.
Data AnalysisKPI MonitoringReportingData ExtractionData ReconciliationNPSMobile Financial Services
Education
Universidad Centroamericana Jose Simeon Canas
Bachelor's Degree in Computer Engineering from Universidad Centroamericana Jose Simeon Canas, completed in 2020.
Bachelor's Degree in Computer Engineering from Universidad Centroamericana Jose Simeon Canas, completed in 2020.