Renato Spencer

QA Engineer (SDET) focused on system integrity and Java automation. I contribute to the core of tools that power the industry. OPEN SOURCE CORE: • Selenium: Null-Safety & Bazel fixes. Merged: https://github.com/SeleniumHQ/selenium/pull/16628 • AssertJ: Fixed java.time assertions on 14k+ regression tests. • Testcontainers: Raised PostgreSQL module coverage to 97%. STACK AND ARCHITECTURE: Building robust Java frameworks, CI/CD pipelines (Docker), API & E2E tests.

QA and Backend Engineering for a Transparency Portal, ensuring strict regulatory compliance for the Public Ministry. ENGINEERING & COMPLIANCE Built backend logic (JavaScript) & DB integrations for fiscal data. Architected Input Validation & RBAC to ensure immutable, auditable data security. QUALITY STRATEGY Designed test plans (Smoke, Regression) with hybrid data sets to validate dynamic reports. Stack: JavaScript, RBAC, Data Validation, Compliance QA, Velo.

Hands-on QA and engineering for additive manufacturing, bridging software and physical machinery. FIRMWARE & HARDWARE DEBUGGING • Dived into C++ firmware (Marlin) to troubleshoot thermal logic and interrupt failures. • Applied root cause analysis to isolate mechanical vs. logical software defects. QUALITY GATES • Built rigorous validation pipelines for functional prototypes. Stack: C++, Firmware Debugging, Hardware QA, 3D Printing Lifecycle.

Technical consulting for a mission-critical hardware/physical asset delivery with a strict 7-day deadline for executive stakeholders. CRISIS MANAGEMENT & AGILE STRATEGY Negotiated a phased rollout (MVP) to ensure a flawless inauguration event. Scaled production capacity by 700% using emergency hardware clusters operating 24/7. PHYSICAL CONTINUOUS DELIVERY Executed a continuous delivery schedule post-launch. Skills: Agile, Hardware Scaling, Crisis Management, Delivery.