Open to opportunities

Ezrah Zechairah San Agustin

@ezrahzechairahsanagu

Message

Aspiring IT professional specialising in QA and AI prompt engineering.

Philippines

Message

What I'm looking for

I am looking for a hands-on QA or AI prompt engineering role in a collaborative, user-focused team where I can grow technically and help build reliable, well-designed digital products.

I am an aspiring IT professional with hands-on experience in Quality Assurance and AI prompt engineering, focused on refining systems until they work reliably for users. I prioritize a user-first mindset and structured problem-solving in every project.

My practical experience includes mobile and web QA, creating test cases, running functional and regression tests, and coordinating with developers to fix defects and improve user journeys. I have also designed web interfaces and prototypes in Figma while applying responsive design principles.

I have worked on AI prompt design, optimization, and evaluation—applying prompt chaining and context refinement to improve LLM responses and reduce bias. I am eager to contribute to teams building dependable, intelligent, and well-designed digital products.

Experience

Work history, roles, and key accomplishments

Current

UI/UX Designer & QA Intern

Current

Unnamed Internship

Jun 2025 - Present (7 months)

Designed wireframes and interactive prototypes in Figma, conducted usability and functional testing, and iterated designs based on user feedback to improve user flows and accessibility.

Figma Wireframing Prototyping Usability Testing Responsive Design Interaction Design User Research

Current

AI Prompter Engineer

Current

S.P. Madrid

Feb 2025 - Present (11 months)

Designed and tested AI prompts to improve response accuracy and reliability, applied prompt chaining and context-refinement techniques, and maintained documentation tracking prompt performance.

Prompt Testing AI Safety Documentation

Web Developer

Ishkaster Media

Jan 2025 - Feb 2025 (1 month)

Implemented user-centered web interfaces and responsive designs, producing HTML/CSS/JavaScript solutions and collaborating on front-end improvements for usability and accessibility.

HTML CSS JavaScript ReactJS Responsive Design Version Control Figma Accessibility

Quality Assurance Engineer

CookPal (Capstone Project)

Aug 2023 - May 2024 (9 months)

Led mobile-focused QA for an Android voice- and AI-driven recipe app, creating test cases and executing functional, regression, and usability tests to improve stability and user journey. Coordinated with developers to triage defects and ensure timely delivery of features.

Functional Testing Regression Testing Mobile Testing Usability Testing

Business Analyst & QA

Photography Booking System

Analyzed business requirements for a photography booking platform and translated them into clear scheduling workflows; conducted functional testing and improved operational efficiency for service-based transactions.

Business Analysis Workflow Design Test scenarios User Acceptance Testing Functional Testing

Education

Degrees, certifications, and relevant coursework

University of Santo Tomas

Bachelor of Science, Information and Computing Sciences

2021 -

Pursuing Information and Computing Sciences with recognition as 1st Year Dean's Lister for both semesters; coursework focused on computing fundamentals and software engineering concepts.