Cristian Martinez Email & Phone Number

Boston, Massachusetts, United States

Manage regular security assessments to detect and mitigate vulnerabilities in the cloud environment, and collaborate closely with development teams to verify that security best practices are followed during cloud-based application development.Handle complicated transformation projects and provide guidance and support to other team members on cloud security best practices and procedures (On-prem to hybrid cloud migrations).Monitor infrastructure compliance (PCI, HIPAA, ISO 27001), implement, run, and analyze cloud-based vulnerability monitoring solutions (Nessus, Qualys), run scheduled system tests, and manage network security.Advocate NIST Framework and CIS security measures, save $25,000+ through effective vendor and supplier negotiations and create and deploy security for complex cloud deployments leveraging cloud-native and third-party security technologies.Create and implement security measures for customers' cloud infrastructure and apps, including firewall configurations, access controls, and data encryption, and demonstrate how to bypass MFA on Outlook Web Access (OWA).Guide to 200+ students on various cybersecurity certifications and lesson planning, preparation, and delivery in computer science courses.Evaluate each student's weaknesses and strengths before developing a teaching technique.Prepare and equip students with the best way to pursue or develop their cybersecurity careers with confidence and purpose.Develop and use effective teaching strategies to educate students of abilities on the subject of cybersecurity.

Andover, Massachusetts, United States

Used PowerShell scripting to automate the day-to-day maintenance of Exchange Databases 2007/2010 and migrated multiple on-premises Active Directory forests to a single Office 365 tenant in a hybrid deployment scenario.Utilized Exchange 2013 Server as a bridge to install the Hybrid Configuration Wizard and enable hybridization between organizations, successfully migrating over 100,000 mailboxes from the Exchange 2007 Server to Office 365.Was a member of the Advanced Engineering team, which handled significant and complicated issues at the highest level of escalation and was an AirWatch administrator for 10,000 or more users and 20,000 or more devices.Worked with stakeholders to determine the implementation and integration of system-oriented projects and analyzed security logs to determine and alleviate network threats.Identified software issues, and assisted employees with resolving network problems at remote locations.

Developed the strategy to migrate over 50,000 mailboxes from hybrid Exchange 2007-2010 to Office 365 Multi-Tenant using PowerShell scripts, created daily automated reports using System Center Orchestrator (SCORCH) to monitor the behavior for 18 Exchange Mailboxes Servers and over 130 Mailbox Databases.Aided authorities in assisting Help-Desk users and Local IT with over 300+ technicians (Service Now) and exchanging 2016 POC in a lab environment.Migrated Active Directory between domains and forests using the ADMT tool PowerShell scripting is used to implement DR failover protocols.

Performed routine security administration activities such as security infrastructure management and monitoring in network monitoring, vulnerability assessment, data and compliance monitoring.Created a copy of the current state environment for testing and development projects to use as a proof-of-concept environment.Designed and maintained Office 365-hosted environments and Exchange Online Protection (EOP).Addressed network access control systems about customer environments' security and created monthly security reports with recommendations to improve security.Implemented System Center Operation and Configuration Manager 2007 R2 as the messaging system monitoring solution.

Distrito Nacional, Dominican Republic

Conducted entire Exchange disaster recovery test plan during Exchange outages caused by hardware (disk) failures utilizing dial-tone database approach and RSG (recovery storage group) feature.Fully designed and implemented and updated Exchange 2003 infrastructure to handle a rapidly increasing environment and constructed numerous active and passive clusters for High Availability and Disaster Recovery.Designed messaging infrastructure distributed sites, storage solution, front-end and backend topology, developed a workable backend active/passive cluster and secured external client access (using ISA server in a DMZ).Hands-on experience and training with Microsoft Exchange 2003.