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Cristiano Miranda

@cristianomiranda

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Senior QA Automation Engineer at Dell Technologies who cut test data preparation from 4 days to under 5 minutes.

Brazil

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What I'm looking for

I'm open to remote roles worldwide, as well as hybrid and on-site roles in Brazil.

At Dell Technologies, I designed CI/CD quality and security gates that blocked releases until they passed. I maintained automated API, end-to-end, and regression suites, with the full regression running in 30 minutes.

As Software Engineer, Automation Technical Lead, I led a team of five automation engineers and automated 70% of the regression scope. I also built a test data generation application that cut preparation from 4 days to under 5 minutes, earning Dell's GameChanger Award in 2021.

I designed end-to-end automation frameworks in C# with Selenium and Playwright, and developed web applications and REST APIs in .NET. My work also included testing integrations across Salesforce, .NET, and Node.js services connected through Kafka.

Earlier, at DBC Company and Stefanini Brasil, I automated tests for financial systems and Salesforce-based solutions. I worked with Java, Selenium, TestNG, SpecFlow, Postman, and JMeter, and developed REST APIs in ASP.NET.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer (Quality and Automation)

Dell Technologies

Feb 2023 - May 2026 (3 years 3 months)

Wrote and maintained automated API, E2E, and regression test suites using Selenium, NUnit, Postman, and Newman, run in GitLab CI/CD. Owned CI/CD pipelines, added SAST/DAST scanning and QA quality gates as blocking stages, and enforced zero critical and high vulnerabilities as a release requirement.

Selenium NUnit Postman Newman GitLab CI CD SAST DAST Snyk Checkmarx Salesforce .NET NodeJS Kafka SonarQube

Software Engineer, Automation Technical Lead

Dell Technologies

Feb 2021 - Feb 2023 (2 years)

Led a team of 5 automation engineers and automated 70% of the regression scope. Built a test data generation application that cut data preparation from 4 days to under 5 minutes, recognized with Dell's GameChanger Award in 2021.

C#Selenium Playwright .NET REST APIs Testing Automation Team Leadership

Test Analyst II

DBC Company

Jun 2020 - Feb 2021 (8 months)

Automated testing for web, desktop, and mobile financial systems using Java, Selenium, and TestNG. Performed API and performance testing with Postman and JMeter, and designed BDD test cases.

Java Selenium TestNG Postman JMeter BDD

Automated Test Analyst

Stefanini Brasil

May 2018 - Jun 2020 (2 years 1 month)

Built automation frameworks in C#, Selenium, and SpecFlow (BDD) for Salesforce-based solutions. Developed REST APIs in ASP.NET with Swagger and performed API and performance testing with Postman and JMeter.

C#Selenium SpecFlow BDD ASP.NET Swagger Postman JMeter