NinjaOne
Company Employees
Matheus Fontalba
QA Engineer/QA Analyst @NinjaOne, LLC
Verified
I'm a Senior QA Engineer with 7+ years of experience in software testing and 10 years in IT, including international collaboration across Europe and the US. I specialize in end-to-end quality strategy across UI, API, backend, and database layers, ensuring reliability in complex systems such as SSO, Billing, VPN, Backup, B2B platforms, and network-based solutions throughout my career, I have acted beyond execution — contributing to release stabilization, strengthening Quality Gates, improving regression strategies, and promoting a culture where QA operates as a strategic partner within product squads. I thrive in agile environments where quality is embedded from planning to release, and I consistently drive cross-functional alignment between Product, Engineering, and QA. My focus is not only defect prevention, but process maturity, risk mitigation, and long-term product stability. Led quality efforts across international and multicultural teams, ensuring high reliability standards in distributed environments. Designed and executed comprehensive test strategies covering regression, e2e, exploratory, performance, and API validation Strengthened and formalized Quality Gates, reducing production risks and improving release confidence Took ownership of release validation processes, including stabilization, deployment flow oversight, and cross-team communication Performed deep backend validation using PostgreSQL and SQL Server to ensure data integrity and system consistency Contributed to automation initiatives using Cypress and Postman to streamline repetitive validation workflows Actively participated in sprint planning, retrospectives, and requirement validation, influencing quality from early stages of development Promoted a culture of shared ownership for quality, mentoring teams toward proactive testing practices Validated complex cross-platform ecosystems (Windows, Linux, macOS, mobile, cloud, virtualization environments)More...