![Oscar Arturo Chavarría Hernández](https://jobicy.com/react/themes/app/images/avatar.jpg) Oscar Arturo Chavarría Hernández # Cybersecurity Analyst Actively looking · Member since 22 May 2026 [Message](https://jobicy.com/dashboard-page.md) ShareLocationCosta RicaDesired salaryUnspecifiedWork preferenceFull TimeExperience levelNot set * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a trilingual Cybersecurity Professional with over 8 years of experience working in global technology environments such as Amazon and AT&T. I hold certifications including LCSPC™ and CCNA 1, and have a solid academic foundation in network traffic analysis, web attack vectors, and security tooling gained through hands-on university lab work at CENFOTEC. My expertise includes a strong understanding of core internet protocols like TCP/IP, HTTP/HTTPS, DNS, and TLS/SSL, which are essential for content delivery, web performance, and security. I have practical experience with CDN-based security platforms and am well-versed in technical compliance, data protection auditing under LGPD and GDPR regulations, DDoS mitigation concepts, rate limiting, and traffic filtering. I am adept at translating complex technical concepts into actionable solutions for global clients while adhering to strict SLAs. My communication skills span English, Portuguese, and Spanish, enabling me to effectively support global markets including LATAM, Brazil, and North America. I am proficient in network and protocol analysis tools such as Wireshark and Nmap, and have conceptual knowledge of various attack types and mitigation techniques. I have academic exposure to OWASP Top 10 vulnerabilities and understand their impact on internet-facing services. Additionally, I have experience in security auditing on Windows Server and Linux systems, data protection compliance auditing, and familiarity with VPNs, proxies, and traffic obfuscation techniques. I also possess basic Python programming skills and am experienced in incident documentation, SOP development, and using ticketing platforms. Currently, I work at Amazon as an HR PXT Work Authorization Senior Associate, where I handle complex technical and legal compliance issues in the Brazil market. Previously, I served as a Seller Support Technical Support Associate at Amazon and provided Tier 1 technical support at Sykes (AT&T). I am committed to continuous learning and professional development, currently pursuing a Technical Degree in Software Development at CENFOTEC. ## Skills 7 capabilities[Active Directory](https://jobicy.com/talent/active-directory.md)[Customer Support](https://jobicy.com/talent/customer-support.md)[GDPR](https://jobicy.com/talent/gdpr.md)[Python](https://jobicy.com/talent/python.md)[TCP IP](https://jobicy.com/talent/tcp-ip.md)[Technical Support](https://jobicy.com/talent/technical-support.md)[Windows Server](https://jobicy.com/talent/windows-server.md) ## Experience Career history ### HR PXT Work Authorization Sr. Associate · Amazon 2021 – PresentPrimary point of contact for complex technical and legal compliance issues in the Brazil market, operating daily in Portuguese and English. Performed data protection audits (LGPD/GDPR) analyzing platform configurations, identifying non-compliant data flows, and documenting findings with remediation steps. Analyzed operational anomalies using internal dashboards and metrics, applying structured root-cause analysis under strict SLAs. ### Seller Support Technical Support Associate · Amazon 2018 – 2021Managed end-to-end resolution of technical and operational issues for global sellers (Brazil and North American markets) including connectivity, authentication, and platform access incidents. Identified and reported bugs and anomalies in internal platforms; coordinated with DevOps and Engineering for fix deployments. Developed and maintained Standard Operating Procedures (SOPs), reducing incident resolution time and improving CSAT scores. ### Customer Service & Technical Support · Sykes (AT&T) 2017 – 2018Provided Tier 1 technical assistance for international customers including connectivity, login/authentication issues, and billing system troubleshooting. Diagnosed network and connectivity incidents in real time, escalating complex cases with full technical documentation. ## Education Learning history ### CENFOTEC March 2026Technical Degree in Cybersecurity Academic Excellence Recognition (≥95 average) ### Certiprof Through 2028Lead Cybersecurity Professional Certificate (LCSPC™) ID: CLPSBDRPNSSZZTKJJLGJ - XTHTPTTWYM ### Cisco Networking Academy CertifiedCCNA: Introduction to Networks (ITN) a37915b5-04e2-4e11-869a-75896013edcc https://www.credly.com/earner/earned/badge/a37915b5-04e2-4e11-869a-75896013edcc ### CENFOTEC InTechnical Degree in Software Development This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.