David Sambuila
Lisboa,Lisboa
Summary
IT and cybersecurity professional with over 5 years of experience, specializing in vulnerability management and ethical hacking. Proficient in implementing security measures, threat analysis, and automating investigations using tools such as Python, Nessus, Kali Linux, and Wazuh SIEM. Strong background in end-user support and enterprise-level security operations.
Overview
3
3
years of professional experience
3
3
years of post-secondary education
1
1
Certification
Work history
Cybersecurity Analyst
Banco BNP PARIBAS
10.2023 - Atual
- Monitor, analyze, and investigate security incidents using Symantec DLP, correlating alerts to identify potential data leaks or policy violations.
Perform vulnerability scans and risk assessments with Nessus, ensuring timely remediation and compliance with internal security standards.
Conduct proactive threat detection and response activities, using Python scripts to automate repetitive investigative tasks and accelerate log analysis.
Configure and maintain firewall rules and access control policies to strengthen perimeter security and reduce the attack surface.
Implement and enforce information security measures in accordance with ISO/IEC 27001, including risk management, access controls, and audit readiness.
Collaborate with IT and compliance teams to ensure system security, incident documentation, and continuous improvement of security operations.
Cybersecurity Analyst
TDsynnex
01.2023 - 10.2023
- Implement and manage security infrastructures for clients using Palo Alto Networks firewalls, including the configuration of security policies, NAT, threat prevention, and log management.
Utilize the Wazuh SIEM for real-time security monitoring, log correlation, and incident detection, ensuring rapid response to suspicious activities and compliance with organizational policies.
Develop and maintain Python scripts to automate data analysis, alert handling, and report generation, increasing operational efficiency and reducing manual workload.
Technical Support
Airfrance
12.2021 - 12.2022
- Document solutions, maintain knowledge bases, and contribute to the continuous improvement of support procedures.
Collaborate with cross-functional teams to assist in the integration, deployment, and management of IT assets.
Troubleshoot operating system issues, network connectivity problems, and application errors in Windows, macOS, and Linux environments.
Escalate complex issues to the appropriate teams while maintaining ownership until resolution.
Support system updates, patches, and security configurations as part of IT operations.
Technical Support
Nava technology
01.2021 - 12.2021
- Supervise the installation of software and hardware systems.
Handle support calls from employees to perform hardware replacements and maintenance, providing excellent assistance with notebooks, Windows operating systems, Office suites, and computer networks.
Create user profiles, install the Office suite, configure machines, and assemble desktop computers.
Education
Graduation - Systems Analysis and Developm
Universidade UNIP
12.2020 - 05.2023
MBA - Cybersecurity And Ethical Hacker
Universidade VINCIT
11.2023 - 08.2024
Skills
- Security & Monitoring: Wazuh / SIEM, Data Loss Prevention, Risk / Incident / Vulnerability Management, ISO/IEC 27001, Identification & Mitigation
- Operating Systems: Debian, Ubuntu, Kali Linux
- Programming & Development: Python, SQL / MySQL, Backend Development
- Automation & DevOps: Jenkins, Docker, Web Automation
- Cybersecurity: Ethical Hacking, Hacking Techniques, Penetration Testing
Certification
- Information Security in Systems
Data Loss Prevention (DLP)
Palo Alto Firewall (Palo Alto Networks)
ISO/IEC 27001 Standard (Information Security Management)
Information Systems Security
Idiomas
Português
Native
Inglês
Fluent
Francês
Native
Timeline
MBA - Cybersecurity And Ethical Hacker
Universidade VINCIT
11.2023 - 08.2024
Cybersecurity Analyst
Banco BNP PARIBAS
10.2023 - Atual
Cybersecurity Analyst
TDsynnex
01.2023 - 10.2023
Technical Support
Airfrance
12.2021 - 12.2022
Technical Support
Nava technology
01.2021 - 12.2021
Graduation - Systems Analysis and Developm
Universidade UNIP
12.2020 - 05.2023
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