David Castro
Systems Engineer - Cybersecurity Specialist
Costa Rica
Summary
Cybersecurity analyst eager to contribute to team success through the power of data analytics. Offering experience in digital investigations and malware analysis with a proven history of delivering exceptional incident management support.
Overview
7
7
years of professional experience
5
5
Certifications
Work History
Cyber-Security Specialist Analyst
Kimberly Clark
04.2023 - Current
- Strengthened network security by deploying advanced threat detection and prevention solutions.
- Guided junior team members in cybersecurity best practices, promoting a learning-focused environment and contributing to team tabletop exercises.
- Collaborated with purple teams to ensure a holistic security strategy across the organization.
- Led initiatives to fine-tune security alerts, significantly reducing false positives.
- Provided technical expertise to enhance the team's response to complex security incidents.
- Developed a global knowledge base and standardized playbooks to improve information sharing and operational efficiency.
- Conducted proactive threat hunting using Threat Intelligence TIP's tools and external threat intelligence OSINT.
Cyber-Security Specialist Analyst
3M
9 2021 - 04.2023
- Conducted security incident investigations within AWS and Microsoft Azure cloud environments.
- Developed SIEM dashboards to support data visualization and enhance investigation efforts.
- Proficient in utilizing a range of security tools, including EDR, cloud-based web proxy logs, firewall logs, Wireshark (PCAP analysis), IPS/IDS logs, and SIEM platforms.
- Led routine threat hunting activities using diverse security tools and threat intelligence sources to identify potential intrusions.
- Extracted and analyzed data from various tools and systems to provide actionable insights for improving internal processes and advising upper management.
- Contributed to the enhancement of team processes, including phishing incident response and threat hunting procedures.
Cyber-Security Incident Response Analyst
DXC Technology
7 2020 - 9 2021
- Handled incidents under NIST framework: Preparation, Detection and Analysis, Containment, Eradication, Recovery, Post incident activity
- Analyzed events flows, alerts, logs to detect potential security incidents using different tools to perform correlations between systems.
- Skilled in multiple security tools handling as EDR's, Web Proxy, Firewall, Wireshark, IPS/IDS systems, SIEM and OSINT tools as well.
- Collaborated with multidisciplinary team with members as lawyers, Digital forensics investigators, Enterprise Security to solve security incidents were was needed to moderate calls and take actions required to mitigate incidents.
- Established macros automation written on VBA script language, able to reduce workload by 10% after implementing
- Leaded efforts of daily cybersecurity operations improvement and processes through DevOps culture as "Improvement Coffee Meeting Talks" for team retrospective.
DevOps SAP Consultant
DXC Technology
04.2018 - 07.2020
- Maintained fluent communication and relationship with customers to understand the business needs and help them build solutions.
- Designed deployment automation solutions, using "PowerShell", "VBA" and "Knime" for ETL Data process
- Prepared detailed reports about projects status and progress.
- Deployed projects with agile methodologies, Kanban, Scrum using JIRA management tool.
- Reduced quantity of bugs on production environment in 60% in 2 years due to the implementation of DevOps methodology.
- Implemented "JIRA Zephyr" Test management system.
Web Developer Intern
Ex2 Outcoding
06.2017 - 11.2017
- Troubleshooted and debugged code ensuring compatibility with devices, browsers, and operating systems
- Developed user interfaces with modern JavaScript frameworks, HTML5 and CSS3
- Adhered to best practices for software development methodology
- Partnered with business stakeholders and experts regarding research and productivity to achieve goals.
Education
Master of Science - Big Data & Business Intelligence
Universidad Católica San Antonio De Murcia
Spain 05.2019 - 2020.02
Bachelor's Degree at Systems - Information Technology
Universidad Nacional De Costa Rica
Heredia 02.2013 - 2017.11
Diploma's Degree - Software Development: Information Technology
Universidad Nacional De Costa Rica
Heredia 02.2013 - 2016.11
Associate - Information Technology: Telecommunications
Universidad Estatal A Distancia
Puntarenas 03.2014 - 2015.03
Skills
Leadership
Customer service
Written And Verbal Communication
Collaboration
Incident Management
Data Analysis
Analytical and Critical Thinking
Team Player
Time Management
Growth Mindset
Languages
English
Full Professional
Spanish (Native Language)
Native or Bilingual
Certification
CHFI Computer Hacking Forensics Investigator - EC Council -ECC4902736185
Courses
Working and Communicating with Different Personalities - Pluralsight
Effective Email Communication - Pluralsight
Timeline
CISSP - Certified Information System Security Professional - In Progress
12-2024
Cyber-Security Specialist Analyst
Kimberly Clark
04.2023 - Current
CHFI Computer Hacking Forensics Investigator - EC Council -ECC4902736185
04-2022
Microsoft Azure Fundamentals – ID. 991004098
11-2021
Master of Science - Big Data & Business Intelligence
Universidad Católica San Antonio De Murcia
05.2019 - 2020.02
Cybersecurity Program "Pathways To Progress" - Citi Foundation - OAS
04-2019
Certified CCNA CyberOps Associated, Cisco - 2018 - 2025 ID No. CSCO12709460
09-2018
DevOps SAP Consultant
DXC Technology
04.2018 - 07.2020
Web Developer Intern
Ex2 Outcoding
06.2017 - 11.2017
Associate - Information Technology: Telecommunications
Universidad Estatal A Distancia
03.2014 - 2015.03
Bachelor's Degree at Systems - Information Technology
Universidad Nacional De Costa Rica
02.2013 - 2017.11
Diploma's Degree - Software Development: Information Technology
Universidad Nacional De Costa Rica
02.2013 - 2016.11
Cyber-Security Specialist Analyst
3M
9 2021 - 04.2023
Cyber-Security Incident Response Analyst
DXC Technology
7 2020 - 9 2021
Similar Profiles
Amber L. DuvallAmber L. Duvall
OPEX Change Agent at Kimberly ClarkOPEX Change Agent at Kimberly Clark
Ryan GreavesRyan Greaves
Manufacturing Team Member at Kimberly ClarkManufacturing Team Member at Kimberly Clark
Courtney PalmerCourtney Palmer
Machine Crew Leader at Kimberly Clark CorpMachine Crew Leader at Kimberly Clark Corp
LAVEDA TUTTLAVEDA TUTT
CTEC Lab Tech at Kimberly-ClarkCTEC Lab Tech at Kimberly-Clark
Sebastian MurilloSebastian Murillo
Lead Recruiter at MicrosoftLead Recruiter at Microsoft