Cristiano S.DevOps Engineer
Skills
The professional profile exhibits substantial expertise and a broad range of skills in systems administration and various IT technologies, emphasizing efficiency, security, and functionality in complex environments. The career includes significant contributions in multiple IT domains, demonstrating a robust and dynamic approach.
In systems administration, proficiency is evident in handling multiple operating systems, including Linux distributions such as Ubuntu and CentOS, alongside Windows Server editions from 2008 through 2019. The capability to install, configure, and manage these systems ensures a stable and secure operational environment.
A thorough understanding of network services and protocols complements systems management expertise. This proficiency includes the setup and maintenance of Active Directory for comprehensive authentication and authorization, DNS for effective name resolution, DHCP for dynamic IP address allocation, and the management of both file and print servers. Additionally, there is significant experience in configuring web servers, including IIS and Apache.
Virtualization and cloud computing are key areas of specialization, with experience in platforms such as VMware vSphere and Hyper-V, as well as cloud services like Amazon AWS, Microsoft Azure, and Google GCP. These skills facilitate the creation and management of scalable and flexible environments.
Monitoring and security expertise includes proficiency with tools like Zabbix and Grafana, enabling close monitoring of servers and services within both Linux and Windows environments. Implementation of security measures, such as role segregation and access control, highlights a strong commitment to information security.
Support management experience encompasses both onsite and remote technical support, ensuring effective IT assistance for users. Responsibilities have included Microsoft license management and firewall configuration, such as with SonicWall, to provide robust defenses against cyber threats.
In-depth knowledge of Amazon AWS services, particularly the design, deployment, and management of cloud infrastructures, demonstrates the ability to leverage services like VPC for network isolation, EC2 for scalable virtual instances, and S3 for secure storage.
Junior IT Support Analyst
2/1/2020 - 9/1/2020
Developed expertise in the administration and installation of Linux Ubuntu and CentOS operating systems, alongside Windows Server versions 2008, 2012, 2016, and 2019. Gained significant experience with Active Directory, DNS, DHCP, File Server, Printing, IIS, and Apache, ensuring robust system management and service deployment. Demonstrated technical proficiency with virtualized environments, including VMware 6.7, Hyper-V, AWS, Azure, Google GCP, and Office 365. Utilized Zabbix and Grafana monitoring tools to effectively monitor Linux and Windows servers and various services, maintaining consistent service uptime and performance. Conducted essential IT routines such as backups, updates for both stations and servers, vulnerability mitigation, capacity and availability reporting, and contingency testing of services. Provided reliable in-person and remote support to internal and external RTM users, ensuring smooth operation and utilization of IT services. Maintained up-to-date technical documentation to support ongoing operations and troubleshooting.Information Security Analyst (Contractor)
1/1/2023 - 3/1/2023
Gained expertise in implementing and expanding security controls, and in scanning and managing vulnerabilities and threats. Collaborated with infrastructure, products, and services teams to manage vulnerabilities across assets. Played a key role in internal security audit processes and monitored external security audit activities. Utilized SIEM tools such as WAZUH and IBM QRadar to analyze and correlate security events. Proposed and implemented improvements for security controls to enhance business value. Conducted behavior monitoring and performed security analyses on compromised workstations and servers.Information Security Analyst (Contractor)
11/1/2021 - 12/1/2022
Tasked with governing Information Security across internal teams, suppliers, and partners. Responsible for directing and escalating Jira and IBM Maximo calls, and for analyzing and acting on various fronts with customers focused on Information Security areas. Developed expertise in Information Security Management Systems (ISMS) and cybersecurity best practices for access management. Audited IT security controls and managed cloud security on AWS, Google Cloud, and Azure platforms. Applied security frameworks including ISO, NIST, CIS, ITIL, COBIT, OWASP, and PCI DSS. Gained proficiency in security solutions such as Data Loss Prevention (DLP), Firewall, Web Application Firewall (WAF), Intrusion Prevention/Detection Systems (IPS/IDS), Cloud Access Security Broker (CASB), Identity and Access Management (IAM), Privileged Access Management (PAM), Security Information and Event Management (SIEM), Endpoint Detection and Response (EDR), Antimalware, Encryption, and Mobile Device Management (MDM). Executed hardening techniques and had extensive knowledge in Privacy and Data Protection regulations like LGPD and GDPR with a focus on prevention techniques for personal data protection.Information Security Analyst
2/1/2021 - 7/1/2021
Technical responsibility for the administration and operation of SIEM, specifically IBM QRadar. Expertise in setting up environments for POC and presentation, integrating log sources, and log normalization, including parsing with Regex and event mapping. Proficient in creating and maintaining rules, runbooks/playbooks, dashboards, and managerial reports.Mid-Level Support Analyst
9/1/2020 - 12/1/2020
Acquired technical expertise in the administration and installation of Linux CentOS and Windows Server (2008, 2012, 2016, and 2019). Developed skills in handling virtualized environments using VMware 6.7, Hyper-V, AWS, Azure, Google GCP, and Office 365. Proficient in monitoring Linux and Windows servers with tools such as Zabbix, Grafana, and Ocs Inventory. Led efforts in restructuring processes and creating documents, flows, and operational procedures within the security area. Gained experience in threat and vulnerability detection in IT services, and implemented measures to protect information while minimizing security risks. Managed security group rules and provided recommendations focused on enhancing processes and information security solutions. Expert in generating and analyzing data from SIEM tools like Wazuh and Graylog, and preparing detailed reports with information security recommendations. Developed and updated policies, standards, and procedures including Information Classification, Access Management, Incident Management, IS Policy, and Business Continuity Plan. Administered firewalls (Fortigate and Sophos) by creating rules and SI policies.Cloud Services Analyst
8/1/2017 - 4/1/2019
Administered cloud environments across AWS, Google Cloud, and Microsoft Azure. Executed Level 1 actions in response to requests, incidents, change requests, and problems. Efficiently monitored customer cloud environments using tools such as Nagios, Zabbix, and Grafana. Managed user accounts through Microsoft Office 365 and Microsoft Active Directory. Utilized various Amazon AWS tools including VPC, EC2, S3, RDS, CloudFront, AutoScaling, and Route 53. Applied extensive knowledge of platforms such as Office 365, Azure, and AWS, as well as the Google Cloud Platform. Monitored a range of local and virtualized environments including VMware, Hyper-V, and Xen Server. Oversaw the monitoring of Windows Server versions 2003, 2008, 2012, and 2016, as well as Internet links, switches, routers, access points, and Sonicwall firewalls. Orchestrated container management using Kubernetes and Docker. Conducted analyses and troubleshooting for both Windows and Linux services and servers.ERP Systems Implementation Analyst (Contractor)
2/1/2016 - 1/1/2017
Developed proficiency in assessing client infrastructure and work processes to ensure compatibility with new ERP formats. Demonstrated expertise in CISSPODER systems installation and comprehensive system configuration. Conducted system training sessions focusing on sales and financial modules, facilitating user adoption and efficiency. Created a wide array of reports catering to diverse business needs. Provided on-site support and assistance, effectively addressing user doubts and ensuring smooth system operation.Infrastructure Analyst (Contractor)
9/1/2014 - 9/1/2015
Achieved successful migration of systems from Windows Server 2003 to Windows Server 2012 on Dell PowerEdge R715 Rack Servers and HP Integrity rx2800 i2. Engaged in projects with renowned brokerages including Citibank, Merrill Lynch, and JP Morgan Chase, which included travel for the systemic migration of Mercantil in Belo Horizonte. Operated proficiently in critical environments and major datacenters such as Terremark, UOLDiveo, Oi, Tivit, and Equinix, as well as the Bradesco Datacenter in Cidade de Deus, Osasco. Delivered the project on schedule with no incident records, marking it an absolute success.Infrastructure Analyst
7/1/2014 - 8/1/2014
Developed expertise in AD administration, encompassing user creation, permissions management, Group Policy Objects (GPOs), server administration, and IP range management. Gained proficiency in managing ArServer and orchestrating backup routines, with significant experience using McAfee and Symantec antivirus solutions, and Symantec Brightmail for email security. Delivered user support via in-person, phone, remote assistance, and email groups, demonstrating strong interpersonal and problem-solving skills. Managed Microsoft licenses and firewall configurations, specifically with SonicWall firewalls.
Supported users on Windows XP, 7, and 8 systems, along with Office Packages (versions 2003, 2007, 2010, and 2013). Utilized remote access tools such as VNC and TeamViewer, and implemented virtualization solutions using Virtual PC and VirtualBox. Handled support, installation, and configuration of Windows 7 environments, coordinating with N2 and N3 support teams for advanced troubleshooting and equipment access.
Administered access control and permissions on ISA Server 2006 in conjunction with Active Directory, managing Windows 2008R2 and Windows 2012R2 networks including Active Directory users, groups, file permissions, and quota control. Oversaw backup environments with Symantec NetBackup, directed and escalated calls for Levels 2 and 3 support, and maintained consistent monitoring of storage, backup equipment, and network operations (LAN, WAN). Ensured the stability and performance of physical and virtual servers across local and remote sites.Network Technician
2/1/2013 - 7/1/2014
Developed expertise in providing user support for Windows XP, 7, and 8 systems, as well as various Office Packages including 2003, 2007, 2010, and 2013. Utilized Remote Access tools such as Team Viewer and engaged in virtualizations using Virtual PC and VirtualBox. Supported and handled installation and configuration of Windows 7. Managed callouts to support teams at N2 and N3 levels, along with equipment access and troubleshooting processes. Administered Access Control and permissions on ISA Server 2006 and Active Directory, and provided support for Windows Server 2003 and 2008 R2.
Specialized in incident management and treatment based on ITIL standards, including directing and escalating calls. Conducted monitoring of storage and backup equipment, as well as LAN and WAN networks for clients. Oversaw both physical and virtual servers in local environments and remote sites, and coordinated with technicians, suppliers, and operators when necessary. Delivered first-level service for incidents generated through monitoring activities.Network Technician
2/1/2013 - 6/1/2014
Developed proficiency in supporting users across Windows XP, 7, and 8 systems, as well as various Office Packages (2003, 2007, 2010, and 2013). Gained experience with remote access tools such as Team Viewer and virtualization platforms including Virtual PC and VirtualBox. Demonstrated expertise in the installation and configuration of Windows 7 and actively collaborated with support teams at N2 and N3 levels. Acquired advanced skills in managing access control and permissions using ISA Server 2006 and Active Directory. Provided comprehensive support for Windows Server 2003 and 2008 R2 environments.
Managed incidents based on ITIL frameworks, effectively directing and escalating calls as necessary. Monitored storage and backup equipment, ensuring the reliability and integrity of data. Supervised LAN and WAN networks for clients, maintained and monitored both physical and virtual servers in local and remote environments. Coordinated with technicians, suppliers, and operators, activating their services when required. Delivered first-level service for incidents identified through system monitoring, ensuring timely and efficient resolution.IT Support Analyst (N2)
10/1/2011 - 5/1/2012
Developed expertise in providing user support via telephone and dedicated systems, and proficiently monitored servers running Windows Server 2003 and 2008. Utilized remote access tools such as VNC, Ultra VNC, Nomachine, TeamViewer, and Join.me for effective troubleshooting and support. Gained experience in running SQL queries with SQL Query Analyzer and performing data backups on DAT tapes. Installed and configured microcomputers, as well as various printers including fiscal, matrix, and laser printers. Handled software installation and configuration, set up wireless networks, and managed RF data collectors like Symbol, Falcon, and Hand Held. Ensured smooth operations of NFE systems, and controlled access and permissions on ISA Server 2006.Senior Support Analyst
7/1/2009 - 3/1/2011
Proficient in Linux Systems, specifically Ubuntu and Debian, as well as TCP/IP and wireless networks. Experienced in remote access tools such as VNC, TeamViewer, and Join.me, alongside virtualization technologies like Virtual PC, Virtual Server, VMware, and VirtualBox. Provided support and performed installations of Windows 7, Windows Server 2003, Active Directory, Exchange Server, and various Office packages (2003, 2007, and 2010). Managed access control and permissions on ISA Server 2004 and provided ongoing support for Windows Server 2003. Utilized and configured the WMS System for daily operational tasks. In the business realm, oversaw the procurement of computer supplies, software services, and comprehensive infrastructure management.Printer Technician (Contractor)
9/1/2006 - 7/1/2008
Gained comprehensive experience in the maintenance and configuration of various types of printers including Laser, Desk-Jet, Dot Matrix, and Plotters. Developed technical proficiency in troubleshooting and resolving printer issues. Managed the sales of printer supplies and computer accessories, ensuring high levels of customer satisfaction. Provided exceptional customer service and phone support, addressing user concerns and delivering effective solutions promptly.
Information Security at UNINOVE
2010 - 2015Information Security at Paulista University
2019 - 2020
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6/1/2016Csirt Foundation Certificate at ITCERTS
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2/1/2013
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