Sergio Vargas

Systems Security Analyst at Gallagher Security
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Contact Information
us****@****om
(386) 825-5501
Location
Auckland, Auckland, New Zealand, NZ
Languages
  • Spanish Native or bilingual proficiency
  • English Professional working proficiency
Skills

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Angel Rivas

Great professional with demostrated commitment to work in team, high technical knowledge comprehensive analisys of client business

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Credentials

  • AWS Certified Security – Specialty
    Amazon Web Services (AWS)
    Jul, 2022
    - Nov, 2024
  • MCSE: Cloud Platform and Infrastructure
    Microsoft
    Sep, 2016
    - Nov, 2024
  • MCSA: Windows Server 2012
    Microsoft
    Oct, 2014
    - Nov, 2024
  • MCITP: Server Administrator on Windows Server 2008
    Microsoft
    Jan, 2013
    - Nov, 2024
  • MCSA: Windows Server 2008
    Microsoft
    Jan, 2013
    - Nov, 2024
  • MCTS: Windows Server 2008 R2, Server Virtualization
    Microsoft
    Dec, 2012
    - Nov, 2024
  • Implementing Cisco Data Center Unified Fabric
    Cisco Networking Academy – Armenia (cisco.academy.am)
    Nov, 2012
    - Nov, 2024
  • MCTS: Windows Server 2008 Network Infrastructure, Configuration
    Microsoft
    Jul, 2012
    - Nov, 2024
  • MCPS: Microsoft Certified Professional
    Microsoft
    May, 2012
    - Nov, 2024
  • MCTS: Windows Server 2008 Active Directory, Configuration
    Microsoft
    May, 2012
    - Nov, 2024
  • ITIL Foundation v.3
    EXIN
    Jan, 2012
    - Nov, 2024
  • CCNA
    Cisco Networking Academy – Armenia (cisco.academy.am)
    Sep, 2012
    - Nov, 2024

Experience

  • Gallagher Security
    • New Zealand
    • Security and Investigations
    • 100 - 200 Employee
    • Systems Security Analyst
      • Jun 2021 - Present

      • Work to create, implement, maintain & execute security processes and procedures to ensure our services operate in a secure state. • Work to support & improve vulnerability management activities across systems & services in the IS landscape. • Work to monitor & tune our security platforms, such as firewalls, IDS/IPS, AV/EDR, vulnerability scanners, WAFs. • Support the implementation of the IS Security Roadmap. • Work to support our IS teams as a specialist security resource within projects. • Work vulnerability management practices, processes, procedures & tools to ensure vulnerabilities in our landscape are appropriately managed, and remediation plans are in place • Work to create, support & implement cybersecurity incident response playbooks • Perform security tasks such as security risk assessments, security reviews, threat modelling & criticality assessments. • Work with project teams to ensure sound implementation of new security solutions & capabilities to help better protect our organisation. • Produce & maintain documentation related to security-related processes & procedures. • Work with our IS teams to produce system security plans and hardening guides. • Apply automation & orchestration practices to security functions. • Work with anti-virus/EDR platforms & related tools. • Be available as an escalation point for security-related incidents, which may be outside of business hours. • Collaborate & contribute towards our reference security architecture. • Work to stay up to date on the latest developments in the threat landscape, security news/topics, etc • Prepare security KPI’s and metrics for monthly reporting. Show less

  • Claro Colombia
    • Colombia
    • Telecommunications
    • 700 & Above Employee
    • IT Manager MCSA/Cybersecurity windows platform
      • Apr 2013 - Sep 2017

      • Monitory, maintenance and management 800+ Microsoft windows servers among physical, virtual and cloud servers to develop and implement online security procedures to identify and manage security risks (across people, process and technology), CERT team member. 24/7 support. • Update guidelines, manuals and procedures according to the ITIL framework to meet the operational needs. • Identify intrusion-detection through SIEMs, (vulnerability-scanning, Web gateway, proxy appliances and antivirus tools). • Make or develop scripts or computer programs to automate tasks to improve IT processes using PowerShell or Python, which reduced time. • Run digital forensic tests. • Provide real-time analysis when monitoring tools trigger alarms. • Display containment strategies to reduce malware incidence on clients' IT assets (Isolation, Mitigation, and Sandboxing). • Conduct preventing incidents applying Risk Assessments, Host Security, Network Security, Malware prevention and User Awareness and Training to reduce vulnerabilities. • Proactively and iteratively search through networks to detect and isolate advanced threats that evade existing security solutions (threat hunting). • Provide technical leadership to develop ICT solutions. Show less

  • GetroniX
    • Austria
    • Machinery Manufacturing
    • 1 - 100 Employee
    • IT Administrator/Cybersecurity Windows platform
      • Feb 2012 - Mar 2013

      - Server windows admin, 24/7 support. - Support the response life cycle during IT incidents (Preparation, Detection and Analysis, Containment, Eradication, Recovery, and Post-Incident Activity). - Coordinate Incident management team to fix IT issues to avoid SLAs noncompliance. - Conduct continuous security monitoring threat assessments against key cyber critical systems. - Level three, windows platform issues. - Performing event correlation, monitoring, research, assessment and analysis against IT infrastructure. - Assist with installing, configuring and maintaining critical security infrastructure and software patches. - Set up, documentation and validation of procedures for the IT area. - Assist with investigating, documenting, response and reporting on cybersecurity issues and emerging trends. Show less

  • BT Group
    • United Kingdom
    • Telecommunications
    • 700 & Above Employee
    • Head IT Manager
      • Feb 2009 - Jul 2010

      - Junior admin platform windows. - Level one network admin. - Participe and validate Business Continuity (BC) and Disaster Recovery (DR) plans. - Set up, documentation and validation of procedures for the IT area. - Coordinate hardware and software purchases for the company. - Solve customer issues. - Junior admin platform windows. - Level one network admin. - Participe and validate Business Continuity (BC) and Disaster Recovery (DR) plans. - Set up, documentation and validation of procedures for the IT area. - Coordinate hardware and software purchases for the company. - Solve customer issues.

  • Kraft Heinz
    • United States
    • Food and Beverage Services
    • 700 & Above Employee
    • Information System Manager
      • May 2005 - Apr 2008

      - Technological platform administrator. - WAN Link Manager. - Level one and two support for corporate users. - Human resource training in the IT area. - Assist with monitoring and reporting on Security compliance. - Technological platform administrator. - WAN Link Manager. - Level one and two support for corporate users. - Human resource training in the IT area. - Assist with monitoring and reporting on Security compliance.

  • SISTEMAS INTEGRALES DE INFORMATICA S.A. SISA S.A.
    • Information Technology & Services
    • 1 - 100 Employee
    • Administration and Communications Engineer
      • Sep 2004 - Dec 2004

      - Validation of tasks on operating system AIX. - Process validation in Oracle databases and IBM TSM (Tivoli Storage Manager). - Alarm monitoring of customer IT resources. - WAN Channel test run. - Generation of statistics on customer IT resources. - Validation of tasks on operating system AIX. - Process validation in Oracle databases and IBM TSM (Tivoli Storage Manager). - Alarm monitoring of customer IT resources. - WAN Channel test run. - Generation of statistics on customer IT resources.

  • Johnson & Johnson de Colombia
    • Cl 100 20-76 P-9
    • Information Technology Analyst
      • May 2004 - Aug 2004

      - Datacenter administrator. - Level one and two IT support for end-users. - Process documentation. - Validation of IT department tasks. - Datacenter administrator. - Level one and two IT support for end-users. - Process documentation. - Validation of IT department tasks.

  • Johnson & Johnson Colombia
    • Cl 100 20-76 P-9
    • Computer Support Analyst
      • Apr 2003 - Apr 2004

      - Level one IT support for local and remote users. - Level one IT support for local and remote users.

  • CDI software
    • Calle 147 No. 7G-46 Of. 102
    • Software Engineer
      • Jun 2001 - Dec 2001

      - Development of programs using JavaScript, Power Builder, Delphi and HTML. - Configuration of database services using Sybase as a database engine - Development of programs using JavaScript, Power Builder, Delphi and HTML. - Configuration of database services using Sybase as a database engine

Education

  • Auckland University of Technology
    Master of Information Security and Digital Forensics, - Computer and Information Systems Security/Information Assurance/ Security IT
    2018 - 2020
  • Universidad Piloto de Colombia
    BE Computer Systems, IT
    1997 - 2002
  • EF Executive Language Institute
    English course, English Language and Literature, General
    2008 - 2008

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