Geancarlos Sosa Ortiz
Toronto,ON
Summary
IT professional with 12 years of experience in cloud administration, infrastructure management, and team leadership across multi-site environments. Skilled in Azure and Office 365 administration, network optimization, and compliance with PCI, ISO 27001, and HIPAA standards. Proven ability to implement ITIL workflows, reducing resolution times and improving service quality. Known for aligning IT strategies with business goals, driving operational efficiency, and enhancing service standards through proactive management and technical expertise.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Senior Systems Administrator
Continuum Global Solutions
01.2019 - Current
- Configured and maintained Azure virtual machines, storage accounts, and networking solutions to ensure high availability and performance for cloud-based applications
- Designed and configured Azure Virtual Networks (VNets) and subnets to securely segment applications and enable isolated environments for different workloads
- Configured Network Security Groups (NSGs) and application security groups to control inbound and outbound traffic to Azure resources, enhancing network security
- Established and maintained site-to-site VPN connections and ExpressRoute circuits for secure, high-speed connectivity between on-premises and Azure environments
- Implemented and managed Azure Firewall policies to control traffic across Azure resources, ensuring only authorized applications can communicate across environments
- Created Azure Web Application Firewall (WAF) rules within the Application Gateway to provide an additional layer of security, protecting applications against common web vulnerabilities like SQL injection and cross-site scripting
- Configured Azure Load Balancer, Application Gateway with URL-based routing and SSL termination, and Front Door for multi-region traffic routing
- This setup optimized application performance, enhanced redundancy, simplified certificate management, and ensured high availability with quick response times for global users
- Implemented and managed Azure Active Directory (AAD), including user roles, group policies, and conditional access for secure and seamless user authentication
- Provisioned and managed Azure Storage Accounts to support structured and unstructured data storage, optimizing application performance across Blob, File, and Disk storage
- Leveraged redundancy options like RA-GRS for data durability and availability, configured encryption, access tiers, and lifecycle management policies to reduce costs and ensure compliance with data protection standards
- Designed and implemented multi-factor authentication (MFA) and conditional access policies in Azure AD to enhance security across the organization
- Managed Office 365 services, including Exchange Online, SharePoint Online, Teams, and OneDrive for Business to ensure smooth operations and a productive collaboration environment
- Developed and enforced data governance policies in Microsoft Teams and SharePoint Online to protect sensitive information and maintain compliance with industry standards
- Configured and managed Azure Backup and Azure Site Recovery for business continuity, reducing potential data loss risks
- Conducted regular risk assessments and security audits on both Azure and Office 365 environments, ensuring compliance for PCI and HIPAA
- Set up and maintained monitoring solutions using Azure Monitor, Log Analytics, and Application Insights to troubleshoot performance issues and reduce downtime
- Implemented Azure Policy and Resource Tagging to maintain organized and compliant cloud environments across departments
- Migrated the internal infrastructure monitoring solution from Solar Winds to Zabbix and implemented Grafana dashboards with the Zabbix plugin for Grafana and Azure Monitor plugin for Grafana
- Deployed and managed Azure Virtual Desktop solutions and host pools using custom images and application groups for Work at Home agents
- Implemented automation on Linux administration tasks with Ansible Playbooks and Saltstack states for on-premises and cloud virtual machines
IT Manager
Xerox / Conduent
06.2015 - 01.2019
- Oversaw infrastructure upgrades across five call center sites in the Dominican Republic and Puerto Rico, implementing network optimizations and equipment updates to ensure seamless operations and support for high-volume communications.
- Conducted network capacity planning and implemented redundant systems to ensure 99.9% uptime, minimizing downtime and service interruptions.
- Led large-scale infrastructure projects, including server migrations, data center setup, and network improvements.
- Ensured compliance with PCI-DSS, ISO 27001, and HIPAA across all sites by enforcing stringent security measures and conducting regular audits and risk assessments.
- Developed and implemented data protection policies, meeting regulatory standards and protecting sensitive customer and business data, reducing compliance risks by 30%.
- Led internal security awareness programs to educate staff on compliance standards and data protection protocols, improving adherence to security practices.
- Led a team of 11 engineers, providing mentorship, performance feedback, and technical guidance to enhance skills and collaboration. Established an ITIL-based workflow for incident, change, and problem management, implementing best practices that reduced ticket resolution times by 40% and significantly improved service quality and response times. Monitored KPIs and SLAs to ensure continuous improvement and alignment with business objectives.
Associate Professor
Instituto Tecnológico Las Américas (ITLA)
08.2018 - 12.2022
- Taught Information technology and security courses for higher education academic programs on Cloud Infrastructure, Cloud Security, Linux administration, Windows administration, Cisco CCNA & CCNP
Server Engineer
PROMESE/CAL
06.2014 - 05.2015
IT Support
Xerox
08.2012 - 05.2014
Education
MBA - Direction of Technological And Industrial Companie
Formato Educativo Business School
Madrid, Spain12-2019
Bachelor of Science - IT & Communications Engineering
Universidad Iberoamericana
Santo Domingo, Dominican Republic01-2017
Associate of Science - IT Network Security
Instituto Tecnológico Las Americas
Santo Domingo, Dominican Republic12-2012
Skills
- Linux administration
- Windows Server
- Patch management
- Backup and recovery
- IT procedure development
- Microsoft Azure
- Azure Firewall
- Azure Compute
- Azure Security
- Azure Virtual Desktop
- Azure Load Balancing
- Ansible
Personal Information
Title: Systems & Cloud Engineer
Previous Experience
- Server Engineer, PROMESE/CAL, 06/2014, 05/2015
- IT Support, Xerox, 08/2012, 05/2014
Languages
English
Native or Bilingual
Spanish
Native or Bilingual
Certification
- Azure Solutions Architect Expert
- Azure Administrator Associate
- Azure Data Fundamentals
- Azure Fundamentals
Software
Microsoft Azure
M365
Zabbix
WAZUH
PDQ Deploy
Linux
Timeline
Senior Systems Administrator
Continuum Global Solutions
01.2019 - Current
Associate Professor
Instituto Tecnológico Las Américas (ITLA)
08.2018 - 12.2022
IT Manager
Xerox / Conduent
06.2015 - 01.2019
Server Engineer
PROMESE/CAL
06.2014 - 05.2015
IT Support
Xerox
08.2012 - 05.2014
- Azure Solutions Architect Expert
- Azure Administrator Associate
- Azure Data Fundamentals
- Azure Fundamentals
MBA - Direction of Technological And Industrial Companie
Formato Educativo Business School
Bachelor of Science - IT & Communications Engineering
Universidad Iberoamericana
Associate of Science - IT Network Security
Instituto Tecnológico Las Americas
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