Peter Kotsiris Email & Phone Number

Chicago, Illinois, Us

Chicago, Illinois, Us

Chicago, Illinois, Us

Chicago, Illinois, Us

· Act as a technical lead/SME for SOC analysts, upper management, and clients. · Lead Dojo Hours: weekly meetups with the SOC, demonstrating technical topics through lab exercises to improve the skill level of analysts. · Conduct Penetration Testing engagements and create proper remediation paths, finding and reporting flaws in client environments utilizing methods such as: OSINT, active/passive recon, network and web app exploitation, as well as many others. · Consistently automate tasks with Python and Bash including low-level threat hunting and event gathering/parsing from enterprise tools such Cisco AMP/Cisco Umbrella via API (see GitHub). · Carry out Threat Hunting investigations throughout all client’s environments. · Orchestrate Vulnerability Assessments and build out vulnerability scanners. · Utilize, manage, deploy, and configure numerous enterprise tools/platforms: Cisco AMP, Cisco Stealthwatch, Cisco ESA (IronPort), Cisco Firepower, Cisco Umbrella, Windows Event Forwarding, OpenVAS, Nessus, Qualys, Tenable.io, as well as many others. · Investigate suspect PCs in Forensic engagements, discovering vital information, resulting in identifying the threat root cause. · Attend meetings with management about improving SOC efficiency and skill level of analysts. · React to active threats and provide threat analytics to clients on a monthly and quarterly basis. · Monitor enterprise-level client environments on a 24/7/365 model.

· Responded to over 10,000 security events in a timely manner, within both a SOC and NOC environment, to guarantee a secure environment for 15 SMB clients.· Provide MSSP services for multiple solutions based on a 24/7 model so our client’s needs are met any time needed.· Deploy Fortinet firewalls for all new clients in an adaptable manor, ensuring an efficient and secure environment. · Install and manage F-Secure, a host-based security solution, to not only protect clients at the perimeter but also at the endpoint.· Redesigned and managed an Office 365 environment with 30 users, utilizing Azure Active Directory to create Geo-fencing policies and roll out 2FA for all users. · Single-handedly provide professional IT services to clients to guarantee and increase overall internal operational efficiency.

Chicago, Il, Us

· Resolved hardware and software issues for DePaul’s faculty devices, which involved Windows and Mac PCs, printers, and TVs.· Installed, configured and modified hardware and software to ensure optimal performance.· Imaging, installation, and repair of desktop and laptop computers in an educational environment.· Troubleshooted network issues including both wired and wireless connections.· Utilized a CRM ticketing platform to respond to over 250 software and hardware incidents.