
Shery
Cybersecurity Application Security Security QA FullStack Development
Skills

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Portfolio
Work experience
QA & Security Analyst
Square One Solutions • Full-time
Sep 2025 - Present • 1 yr
Performed manual and functional QA testing across Android, iOS, and React-based web applications, catching functional and security-relevant defects before release. Carried out application security assessments against a Firebase-backed platform using Burp Suite and cURL, testing API endpoints, authentication flows, and access-control logic. Designed and implemented Firebase Security Rules to close gaps identified during testing, and implemented mobile/web app attestation (Play Integrity API, App Attest/DeviceCheck) to block unauthorized traffic. Also extended QA coverage to AI/LLM-integrated features, testing prompt accuracy and response reliability.
Intern Developer
Cyberainix • Full-time
Jan 2025 - Sep 2025 • 8 mos
Built front-end UI components in React and Vue.js and integrated them with backend REST APIs, delivering responsive, production-ready interfaces. Contributed to backend development in Node.js, extending existing services within a REST architecture. Tested and validated MySQL and Firestore queries to support reliable data integration across services. Gained hands-on exposure to Apache-based deployment and full-stack workflows through code review and developer collaboration.
IT & Web Services Support
Delta Chemical • Full-time
Dec 2022 - Jan 2025 • 2 yrs 1 mo
Managed web hosting, DNS, cPanel, and email systems for the company. Overhauled the company website and provided daily IT support across the office.