León Quiroz
Verified Expert in Engineering
QA Engineer and Developer
Medellín, Colombia
Toptal member since September 10, 2026
León has built scalable automation frameworks and led quality initiatives across enterprise SaaS and cloud environments for the past 10 years. His work centers on Selenium WebDriver, Serenity BDD, and CI/CD integration. León increased regression coverage and improved test architecture modularity while at FPT Software.
Portfolio
Experience
- SQL Server - 10 years
- Selenium WebDriver - 6 years
- Java - 6 years
- Postman - 4 years
- Jira - 2 years
- GitHub Copilot - 2 years
- Playwright - 1 year
- REST Assured - 1 year
Preferred Environment
Git, Jenkins, SQL Server, Azure DevOps, AWS IoT, PostgreSQL, MySQL, MongoDB, Agile
The most amazing...
...automation framework I've built enabled seamless API and service-layer validation for a global SaaS platform, improving release confidence.
Work Experience
Senior Quality Assurance Engineer
FPT Software
- Led the design and maintenance of scalable automation suites for API and service-layer validation.
- Implemented structured API automation using Java, JUnit, Serenity BDD, and Rest Assured.
- Integrated automation into CI/CD workflows using Git and Argo CD.
- Validated cloud-based deployments within AWS environments.
- Improved test architecture modularity and execution performance.
Software Engineer in Test
Anthology
- Designed and maintained enterprise automation frameworks using Selenium, Cucumber (BDD), and Java.
- Migrated automation framework from Protractor to WebdriverIO.
- Automated Windows applications using SpecFlow (C#).
- Developed API automation and optimized SQL-based test data management.
- Maintained Azure DevOps CI/CD pipelines for regression testing.
- Leveraged PractiTest to maintain end-to-end test traceability, monitor testing progress, and provide quality metrics to stakeholders.
QA Engineer III
RealPage
- Developed UI automation frameworks using Selenium and Cypress.
- Increased regression coverage through workflow automation.
- Integrated and maintained automated suites into CI pipelines.
- Supported cross-team coordination and technical estimations.
- Managed test planning, test case design, execution tracking, and reporting using TestRail.
Developer | QA Analyst
Choucair Testing S.A.
- Built automation frameworks using Selenium WebDriver, Serenity BDD, JUnit, and Cucumber.
- Applied Screenplay Pattern for scalable automation architecture.
- Managed defect lifecycle in collaboration with development teams.
IT Coordinator | IT Manager
Konfirma S.A.S.
- Directed IT operations, including infrastructure planning, software lifecycle governance, and annual budget control.
- Led recruitment, onboarding, and technical development of IT personnel, fostering a high-performance team culture.
- Oversaw design, development, and maintenance of enterprise systems using C#, ASP.NET, and SQL Server.
- Managed AWS cloud infrastructure, ensuring availability, scalability, and data security best practices.
- Acted as liaison between executive leadership and technical teams to align IT strategy with business growth objectives.
Software Developer
Emtelco S.A.
- Designed and implemented IVR and CTI integrations for AVAYA and Interactive Intelligence platforms.
- Developed web services and back-end integrations supporting contact center operations.
- Provided production support and client-facing technical consultancy.
Project Leader
S-Square S.A.
- Directed end-to-end delivery of software projects within the Microsoft .NET ecosystem, ensuring alignment between business requirements, technical execution, and delivery timelines.
- Led cross-functional teams in the implementation of web, desktop, and service-oriented solutions.
- Contributed to system architecture and hands-on development using C#, VB.NET, ASP.NET, and SQL Server.
- Drove application stability through performance optimization, maintenance planning, and continuous improvements.
Software Developer
An IT Services Company
- Supported team growth by onboarding, mentoring, and guiding developers, promoting best practices and accountability.
- Acted as a bridge between business and engineering teams, translating requirements into technical solutions aligned with organizational goals.
- Built and enhanced enterprise applications across web, desktop, and service layers using C#, VB.NET, and ASP.NET.
- Implemented communication solutions for contact centers, including IVR and CTI integrations on AVAYA platforms.
- Provided ongoing support, troubleshooting, and optimization to ensure system reliability and performance in production environments.
Experience
Enterprise Test Automation Framework for Web and API Applications
Education
Bachelor's Degree in Computer Science
University of Medellín - Medellín, Colombia
Certifications
ISTQB Certified Tester Foundation Level (CTFL)
Brightest Org.
Scrum Master Accredited Certification (SMAC)
International SCRUM Institute
Skills
Libraries/APIs
Selenium WebDriver, Playwright
Tools
REST Assured, Jira, Postman, GitHub Copilot, Claude Code, Serenity BDD, Git, Cucumber, WebdriverIO, TestRail, n8n, Jenkins
Languages
Java, C#, TypeScript, Processing, SQL, VB.NET, Python
Frameworks
Selenium, JUnit, Protractor, SpecFlow, Cypress, ASP.NET, NUnit
Paradigms
Manual Testing, E2E Testing, Test Automation, Scrum, Behavior-driven Development (BDD), Management, Azure DevOps, Agile, Model Context Protocol (MCP), ETL, Testing, Functional Testing, Agile Project Management, Page Object Model (POM)
Storage
Database Testing, PostgreSQL, MySQL, MongoDB
Platforms
AWS IoT, PractiTest, Kubernetes, Oracle
Other
API Testing, Regression Testing, QA Automation, Test Automation Frameworks, Automated UI Testing, SDET, Quality Assurance (QA), CI/CD Pipelines, SQL Server, Prompt Engineering, Software Development, Engineering, Leadership, Planning, GitHub Actions, Argo CD, QA Testing, Test Planning, Defect Management, Risk-based Testing, Test Analysis, Mentorship & Coaching, Stakeholder Management, Continuous Improvement, Facilitation, Avaya Software, Telecom Business Support Systems (BSS), Data Migration Testing, Accessibility
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring