Mark Painter Email & Phone Number

Columbus, Ohio Area

My most recent position involved actively improving operational efficiency through precise management of Azure tenant operations, DNS, Web App Firewall rules, application gateway configurations, subnet peering, and other Azure services. By developing comprehensive IT policies and leading the painstaking preparation of evidence for SOC 2 Type 2 audit, I ensured strict compliance requirements. I completed in-depth IT security questionnaires submitted by prospective clients. I built and managed Azure Active Directory Domain Services to implement organizational identity management across Azure tenants. I ensured ongoing operational excellence, provided professional DevOps and general IT support, and maintained email and network services. By overseeing Microsoft 365 accounts and licenses with an emphasis on security enforcement and efficient onboarding, I also promoted seamless user experiences.Key Accomplishments:● Reduced 75% in Mitel expenses by devising and executing strategy to phase out inactive Mitel office phones.● Improved endpoint security through deployment of Intune and Defender for Endpoint to facilitate device enrollment.● Achieved 10% cost reduction by partnering with Cloud Service Provider to enhance Microsoft 365 suite licensing efficiency.● Maintained system reliability and data protection through robust disaster recovery methods by establishing and configuring Azure VM as FTP server.● Increased email security by establishing and managing DKIM, DMARC, and SPF DNS records.● Monitored quarantine logs to ensure optimal protection and system performance via utilization of Defender for Office 365 to implement advanced SPAM filtering.

Columbus, Ohio Area

In my previous position, I implemented sophisticated SIEM system modifications and improved threat detection capabilities by using RegEx to extract precise insights from incident data packets. I oversaw the smooth integration of important data sources into the SIEM architecture, including file servers, application servers, routers, firewalls, and domain controllers. In order to maintain continuous system integrity and high availability, I quickly identified and mitigated security threats, playing a crucial role in incident response. Along with creating strategic initiatives to strengthen security infrastructure and streamline incident management procedures, I also made sure to respond proactively to emerging cyberthreats.Key Accomplishments:● Strengthened operational resilience and fortified defenses against potential security breaches.● Reduced Mean Time to Detect (MTTD) and Mean Time to Respond (MTTR), while enhancing SIEM incident detection capabilities.

Columbus, Ohio Area

In this capacity, I designed and maintained a structured SIEM architecture that was closely synchronized with Active Directory, which maximized operational efficiency and information correlation. In order to strengthen the organization's all-encompassing security framework, I oversaw the strategic planning and improvement of Security Information and Event Management (SIEM) systems with the smooth integration of various data sources. By employing proactive monitoring techniques within the SIEM architecture, I was able to identify and neutralize such threats while proactively maintaining strict data confidentiality standards and protecting system integrity.Key Accomplishments:● Minimized impact by facilitating agile incident response protocols and ensuring rapid and effective action during security breaches.● Improved analyst navigation and expedient incident identification capabilities by configuring new SIEM setup designed to mirror organization's Active Directory environment.Additional Experience • Senior Systems Administrator, Hexion Inc., Columbus, OH • Intranet Content Manager, Borden Chemical Inc., Columbus, OH • Regional LAN Administrator, Borden Chemical Inc., Springfield, OR