Leandro Emanuel Ferreira
@leandroemanuelferrei
Senior QA automation engineer scaling reliable E2E tests for fintech and payments.
ArgentinaWhat I'm looking for
I’m a Senior QA Automation Engineer with 10+ years building and scaling test automation for fintech, banking, and payment platforms. I specialize in Java-based end-to-end frameworks (TestNG, RestAssured) and modern UI/API automation with Cypress and Playwright, with a focus on reducing flaky tests and improving reliability in distributed, high-availability systems.
Recently, at Dlocal, I architected a Java E2E automation framework to expand API coverage for core payment and payout services, and I stabilized integration test runs by tuning async timeouts and polling strategies. I also migrated a legacy Jenkins pipeline to GitHub Actions, implemented secrets management via AWS SSM Parameter Store for environment parity, and integrated Claude Code with an internal LLM gateway to accelerate test design and maintenance while adhering to strict standards.
Experience
Work history, roles, and key accomplishments
Engineered end-to-end test automation for backend payment and payout services in a high-availability fintech environment. Built a Java-based E2E framework, migrated CI from Jenkins to GitHub Actions, and integrated AI-assisted development into the CI/CD workflow.
Test Automation Engineer (Contract)
Mv Factory
Jun 2022 - Apr 2024 (1 year 10 months)
Introduced continuous performance testing into an agile process to deploy, test, and report key performance metrics. Architected automated tests and integrated CI/CD on Microsoft Azure for load, stress, API, and integration/E2E testing.
Test Automation Engineer
Natural Tech House
Nov 2020 - May 2023 (2 years 6 months)
Performed functional and non-functional testing to ensure application quality, performance, and reliability. Designed automated tests using Cypress with JavaScript and TypeScript and supported development teams with QA automation best practices.
QA Engineer
Kapsch TrafficCom
Oct 2019 - Nov 2020 (1 year 1 month)
Ensured software product quality and reliability through systematic testing processes. Administered testing against Cassandra databases, tested REST APIs with Postman and SoapUI, and supported integration work within Agile Scrum teams.
QA Lead
Vates S.A
Oct 2018 - Oct 2019 (1 year)
Developed and implemented QA processes for a national banking software division. Planned and executed manual and automated testing for web, mobile, and internal applications.
QA Engineer
Red Link
Jan 2016 - Oct 2018 (2 years 9 months)
Performed gray-box testing based on functional and technical documentation and managed test cases in HP ALM. Conducted log analysis across multiple platforms, reported defects in Jira, and analyzed bank transactions and ISO 8583 messaging on HP Nonstop servers.
Delivered database testing, ETL validation, and BI reporting support at IBM and coordinated defect tracking with cross-border teams for Peugeot Citroën. Designed test cases and supported quality validation activities across these environments.
Software Tester
Telecom S.A
Jan 2013 - Jan 2014 (1 year)
Performed manual QA testing using HP Mercury and Mantis. Supported testing activities using documentation-driven manual test execution.
Education
Degrees, certifications, and relevant coursework
Escuela Arg. de Negocios
Bachelor's Degree in Computer Science, Computer Science
2021 -
Bachelor’s degree in Computer Science, studying part-time and in progress.
Instituto Bs
Diploma in Computer Science, Computer Science
2014 - 2017
Diploma in Computer Science completed from 2014 to 2017.
Tech stack
Software and tools used professionally
Availability
Location
ArgentinaAuthorized to work in
Job categories
Skills
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