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Cássio SantAnna

@cssiosantanna

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Senior QA/Test Engineer specializing in reliability-driven testing, release leadership, and high-transaction systems.

Luxembourg

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What I'm looking for

I seek a senior QA/Test role where I can lead release quality, improve test strategies, mentor teams, and ensure reliability for high-traffic or mission-critical systems.

I am a senior QA and test engineer with extensive experience in reliability-driven testing, release leadership, and improving quality processes across high-transaction and mission-critical systems. I have led deployments, developed complex test scripts, and served as a quality consultant to cross-functional teams.

My background includes ensuring platform stability during peak traffic events, mentoring QA analysts, and collaborating closely with product owners and developers to reduce production bugs. I combine manual and automation testing experience, working with modern test frameworks and tools to accelerate defect identification and resolution.

I bring strong problem-analysis skills, proficiency with CI/Git workflows, and hands-on experience with API, UI, performance, and usability testing. I seek opportunities where I can drive test strategy, improve release quality, and contribute to resilient, user-focused products.

Experience

Work history, roles, and key accomplishments

Current

Test Engineer

Current

Motorola Solutions

Oct 2024 - Present (1 year 2 months)

Release lead for the Smart 911 emergency system, managing build deployments and executing complex integrated test scripts to ensure reliability and traceability; collaborated with development and automation teams to accelerate defect identification and resolution.

Test Automation Release Management Integration Testing Test Strategy WebdriverIO CI CD Root Cause Analysis

Senior QA Analyst

Lojas Renner S.A.

Jul 2021 - Oct 2024 (3 years 3 months)

Ensured stability of high-transaction e-commerce and payment systems by designing and executing functional, integration, and regression tests for peak traffic events (e.g., Black Friday) and providing quality metrics that informed development priorities.

Functional Testing Performance Testing Test Planning SQL Jira Mentorship

QA Analyst

Wrkshp

Mar 2017 - Oct 2017 (7 months)

Performed end-to-end testing of game features, conducted usability and performance analyses to reduce churn, and maintained detailed test plans and cases to ensure requirements coverage and stability.

Game Testing Usability Testing Performance Analysis Bug Reporting Debugging Test Plans