Mario Herrera

QA Engineer with 6+ years of experience in manual and automated testing for web and mobile applications. Skilled in functional, regression, smoke, and performance testing, defect management using Jira, and QA documentation in Confluence. Experienced in the Sportsbook domain, applying business rules and specialized tools to identify defects and improve system quality

QA Engineer II at Novacomp (2025-01 – Present)

Provided QA consulting services for clients from sportsbook and chatbot platforms.

QA Consultant at Aeroméxico (Client Project) (2025-01 – Present)

Manual QA support for chatbot platforms used in customer service operations.

• Manual QA support for chatbot platforms used in customer service operations.
• Reported and validated defects, user stories and tasks using Jira.
• Participated in War Room sessions with the client to identify issues and define improvements for production chatbots
• Collaborated with developers to analyze, reproduce and document defects
• API testing and validation of integrations using Postman.

QA Consultant at SIM Costa Rica (Client Project) (2025-01 – 2025-12)

Manual QA services for sportsbook platform projects.

• Manual QA services for sportsbook platform projects.
• Reported, tracked and validated defects, user stories and tasks using Jira for Tokyo, Tokyo as a third Party, Lotto Lux and OddsSync projects.
• Created and maintained testing documentation and knowledge base using Confluence
• Designed, executed and reported manual test cases for Tokyo, Tokyo as a third Party and Lotto Lux projects using Xray
• Analyzed Sportsbook business rules to ensure correct system behavior during testing alongside a business expert guiding the process.
• Performed functional testing using specialized tools including DGS, DGS Lines Manager and GBS to identify defects and improvement opportunities with a business expert ensuring nothing went wrong

QA Engineer at Appvance (2019-01 – 2024-12)

Performed functional, regression, smoke, and performance testing for web and mobile applications.

• Performed functional, regression, smoke, and performance testing for web and mobile apps.
• Executed full QA lifecycle: test planning, execution, defect tracking, and validation.
• Reported and tracked defects using Jira and maintained documentation in Confluence.
• Developed automated test scripts for web and mobile testing for Nike against competitors like Adidas, Walmart, eBay, Amazon or AliExpress and deliver a monthly report with the generated results

Systems Analyst at SOLTIG (2018-01 – 2019-12)

Configured and deployed unmedicare.com website using the eCommerce platform PrestaShop.

• Configured and deployed unmedicare.com website using the eCommerce platform PrestaShop. Additionally, executed and documented functional and usability testing for that website.

Systems Engineer at Moto+ (2016-01 – 2017-12)

Developed and documented functional and usability tests for an automotive management web system.

• Developed and documented functional and usability tests for an automotive management web system named S.G.A.

Bachelor in Systems Engineering – Universidad Nacional (UNA)

Diploma in Software Application Development – Universidad Nacional (UNA)