Cyber Security Analyst

Krysztof Ptak

**** *. **** **. *** Lawn, IL 708-***-**** ***********@*****.***

Summary:

Cyber security analyst with 3 years of IT experience, 2 years of cyber security experience. Efficient problem solver with outstanding technical, analytical, and communication skills. Fast learner with the ability to grasp new threats, concepts, and technology.

Skills:

● Wireshark

● Nessus

● Intrusion Detection Systems (IDS), Intrusion Prevention System (IPS)

● Security Information and Event Manager (SIEM)

● Python, C/C++, Javascript

● Windows, Windows Server 2016, Kali, Ubuntu, Fedora, Debian Work Experience:

Aldi, Aurora, IL July 2023 - December 2024

CyberSecurity Analyst

●ConductedvulnerabilityassessmentsusingNessus,to locate any present CVEs or CWEs.

●PrioritizedvulnerabilitiesbasedontheirCVSS,overall hardening infrastructure.

●Developedandimplementedriskmitigationstrategiesbasedonthevulnerabilityassessments. Global Service Desk Analyst January 2021 - May 2023

●TriagedandescalatedServiceNow(SNOW) tickets appropriately.

●ManagedInternetofThings(IoT) devices with MobileIron.

●Diagnosedandcorrectednetworkissues.

●FixedaccountproblemsrelatedtoCitrixandEmpoweredID. Experience:

Chicago Cyber Defense Competition (CCDC 2022 & 2023): An 8 hour competition that simulates a real advanced persistent threat (APT) campaign. Across multiple vulnerable system.

●PerformednetworksecuritymonitoringonserviceslikeSIEM,IDS/IPS, Firewalls, Web Application Firewalls, and Data Loss Prevention (DLP).

●ConductednetworktrafficanalysisusingWiresharktomitigateanymaliciousactivity.

● Implemented security policies and procedures to ensure compliance with industry standards. And developed documentation of said policies and procedures.

●Manageda7-member team of security analysts during the APT campaign. Leading the team to focus on the more urgent incidences.

●HardenedandmitigatedanyvulnerabilitiesontheWindows,Windows Server 2016, Ubuntu and Fedora systems from attacks.

Education:

Bachelor’s in Cybersecurity, Purdue Global May 2025 Associate’s in Liberal Arts, Moraine Valley Community College, IL May 2023 Certificates:

CompTIA Security+ (Sec+) August 2023

CompTIA Cybersecurity Analyst+ (CySA+) December 2025

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