Recommended expert

Krisztián Korcz

IT-Soc/Vulnerability

Krisztián Korcz
Darmstadt, Germany

Experience

Apr 2024 - Present
2 years

IT-Soc/Vulnerability

ITZBund

  • Vulnerability management (Greenbone, Tenable SC, Rapid7)
  • Automation of vulnerability scans
  • OpenTofu (Terraform)/Ansible/Vault/Podman/Docker
  • Compliance audit
  • SOC (ElasticSearch, Graylog)
  • Python/Rust/Bash/Shell/PowerShell
  • Git collaboration
  • Report standardization and automation
  • POC for several vulnerability scanning systems
  • Setup of vulnerability scanning system
Apr 2023 - Feb 2024
11 months

IT Security Compliance Hardening Specialist

BWI / Thales Group

  • ZCSBw/CIS/NIST/BSI Windows/Linux
  • Hardening automation (JSON/PowerShell/Shell/Bash/Python)
  • Hardening Linux
  • Hardening Windows (Client/Server)
  • Golden images Linux (Preseed/Kernel compile/TPM)
  • Golden images Windows (Microsoft MDT)
  • Tenable compliance audit scripting (Nessus)
  • Rundeck automation
Sep 2022 - Dec 2023
1 year 4 months

IT-Webcheck Team

ITZBund

  • Penetration test (Burp, OWASP, Metasploit)
  • Automation platform architecture
  • Vulnerability management (OpenVAS, Nessus)
  • SOC (ElasticSearch, Graylog)
  • Collaboration penetration testing platform
  • Report standardization and automation
  • Expansion of the penetration testing concept
  • Audit support
May 2021 - Mar 2024
2 years 11 months

IT Network Security Team

ITZBund

  • Firewall automation (Ansible/Python/Perl/Shell)
  • Firewall installation (Cisco Firepower/ASA)
  • Firewall configuration (CLI, ASDM, Automation)
  • Cisco ISE administration
  • API interface development (Tufin, DDI, BMC Remedy)
  • DDoS and attack analysis (Arbor)
  • Graylog analysis
Nov 2019 - Apr 2021
1 year 6 months

IT Middleware Team

ITZBund

  • Hardening (CIS/NIST)
  • Deployment
  • Automation
  • Pentest/Audit risk analysis
  • Log analysis (Splunk)
  • Scripting (Bash/Python/CLI)
  • JBoss/Tomcat/Apache
Feb 2019 - Oct 2019
9 months

IT Cyber Security Consultant

Lufthansa Group

  • Hardening (CIS/NIST) management
  • Penetration test
  • Vulnerability management (Qualys/Tenable SC)
  • Web and application analysis (QRadar)
  • Patch management
  • Report automation (PowerShell)
  • CERT (KeepBlue/DejaBlue)
Jun 2018 - Dec 2018
7 months

IT Technical Consultant for Application, Infrastructure and Security

DB Investment Services

  • Oracle WebLogic (Migration 10–12)
  • Elasticsearch, Logstash, Kibana (ELK for log analysis and SIEM)
  • Code review
  • Hardening (CIS/NIST)
  • Penetration test (OWASP Guideline)
  • Vulnerability scan and analysis (Tenable SC)
  • Infrastructure LAN/DMZ/Wireless test
  • ActiveMQ/FUSE
  • WLST/Python/Bash/KSH
  • UC4
Feb 2018 - May 2018
4 months

IT Security Penetration Tester

ECB via Airbus MSP

  • Penetration test (OWASP Guideline)
  • Vulnerability scan and analysis (Tenable SC)
  • Infrastructure LAN/DMZ/Wireless test
  • Web and application analysis (ArcSight)
  • Mobile application test
Mar 2015 - Dec 2017
2 years 10 months

Technical Consultant Internet Portals Application Services

Commerzbank AG

  • Operation/integration test setup for API management platform (Axway, MySQL, Cassandra)
  • Infrastructure consulting for HA system
  • Production and test environment setup
  • Product deployment and configuration
  • Coordination of online banking penetration test
  • Coordination of ELK log analyzer rollout
  • Regex scripting for anomaly detection
  • Automation
  • WebSphere Application Server 8.5
  • Linux/Solaris
  • Shell (Bash/KSH), Perl, Python
  • HP Service Center/HP Service Manager
Jul 2014 - Dec 2014
6 months

Technical refresh of WebLogic and Java

Deutsche Bank Applikation Services

  • Oracle WebLogic 12
  • WLST/Jython
  • Java 1.7
  • IBM RCM
  • TeamCity
  • Sonar, Nexus/Maven
  • Linux/Solaris
  • Shell (Bash/KSH)
  • Perl
  • GCM/JIRA
Jan 2014 - Mar 2015
1 year 3 months

Technical Security and Risk Management

Deutsche Bank Trier

  • System and infrastructure analysis
  • Infrastructure architecture
  • Technical solution architect
  • Security and risk assessment
  • Technical coordination of infrastructure integration
  • Performance optimization
Apr 2013 - Dec 2013
9 months

Patch and Security Management for Middleware and Web Servers

BASF

  • Script automation (KSH/Bash/Perl)
  • Apache Web/Tomcat
  • Web server security (Apache/IIS) and monitoring
  • WebSphere (WAS)
  • BladeLogic (patch, deployment result monitoring and reporting)
  • Configuration management (Subversion)
  • LAMP system support
  • Patch automation
  • AHD ticketing system
Jul 2012 - Apr 2013
10 months

Build and Deployment Manager and Software Configuration Specialist

Deutsche Telekom AG

  • Technical architect
  • User, deployment, and security concept
  • Configuration management (Subversion)
  • Apache/Tomcat
  • Maven/Ant/Groovy
  • CI/CD (TeamCity/Jenkins/Nexus)
  • Redline-RPM
  • Subclipse
  • Zypper
  • Build/Deployment
  • Bash/KSH/Groovy/Jython/XSLT scripting
  • LAMTJ system support
  • Jira ticketing system
May 2012 - Jun 2012
2 months

Software Configuration Specialist

1&1 Internet AG

  • Technical, user, deployment, and security concept
  • Apache/Tomcat/JBoss
  • Maven/Ant
  • Jenkins/Puppet/Nexus
  • Build/Deployment
  • Nagios/Nimsoft (Zeus)
  • LAMP system support
Sep 2011 - Dec 2011
4 months

Consultant QTS TEDS

Deutsche Telekom AG

  • LAMP (Linux, Apache, MySQL, PHP)
  • IBM WebSphere MQ (Solaris & Linux)
  • Configuration management (SVN, GIT)
  • Build management (Maven, Ant, Jenkins, Nexus)
  • Deployment (RPM, KSH/SH/Bash/PL)
  • Middleware configuration (JBoss, Tomcat)
  • Scripting and automation
  • Agile method (Kanban)
Jan 2011 - Feb 2015
4 years 2 months

CMS Web Development

Danubius Language and Culture Association Darmstadt e. V.

  • Drupal installation
  • Drupal configuration
  • PHP patching
  • Design (CSS development)
  • MySQL administration
Jul 2010 - Jul 2011
1 year 1 month

Software Configuration Specialist

Deutsche Bank AG PBC IT

  • IBM WebSphere MQ (Solaris)
  • Configuration management
  • Deployment
  • Middleware configuration (Oracle WLS)
  • IBM Tivoli Job Scheduler (Maestro)
  • Veritas Cluster
  • Scripting and automation (Bash/Perl/Jython/XSLT)
  • Jira and GCM ticketing system
May 2008 - May 2010
2 years 1 month

Deployment Consultant at T-Com

SL Software Consulting

  • Configuration management
  • Release and rollout management
  • Build and deployment management
  • Middleware configuration (WebSphere, JBoss, Tomcat, WebLogic)
  • Scripting and automation for deployment
  • Unix/Linux administration (Solaris, SLES)
  • Jira ticketing system
Jan 2008 - May 2008
5 months

Infrastructure and System Analyst at RCO Terminal Systeme GmbH

DK Telecom Software Zrt.

  • Network measurement for seven branches
  • Network management
  • Project management (network optimization)
  • Network planning (T1/T2/T3 network)
  • Network cost planning
Feb 2005 - Dec 2007
2 years 11 months

Software Developer at CIDA GmbH

DK Telecom Software Zrt.

  • MS Access database support
  • MS VB6
  • Linux server administration
  • Oracle XE administration on SUSE Linux
  • Testing new hardware and software
  • Communication coordinator

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (6.5 years), Government and Administration (6.5 years), Telecommunication (6.5 years), Banking and Finance (6 years), Aerospace and Defense (1.5 years), and Chemical (0.5 years).

Information Technology
Government and Administration
Telecommunication
Banking and Finance
Aerospace and Defense
Chemical

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (20.5 years), Operations (6 years), Quality Assurance (3.5 years), Audit (3 years), and Project Management (0.5 years).

Information Technology
Operations
Quality Assurance
Audit
Project Management

Languages

Hungarian
Native
German
Advanced
English
Intermediate

Education

Oct 2002 - Jun 2005

University of Pécs

Technical University Teaching Degree · Pécs, Hungary

Oct 2000 - Jun 2005

University of Pécs

Technical Computer Engineering Cybernetics - Robotics specialization, System Architect - Operator module · Pécs, Hungary

Oct 1996 - Jun 2000

Gergely Czuczor Catholic High School Győr

Győr, Hungary

Certifications & licenses

Advanced security clearance by the BMWi (Ü2) according to §9 SÜG

Reliability check according to §7 Aviation Security Act (LuftSiG)

OSCE - Offensive Security Certified Expert

OSCP - Offensive Security Certified Professional

Metasploit Ruby Scripting

Advanced Java (J2EE) Seminar

EC Forensic Analyze Basics

CEHv7 - Certified Ethical Hacker Seminar

Solaris 10 Operating System Administration For Experienced UNIX Administrator Course

Oracle DB Administrator "DK-Telekom Internal" Course

Cisco CCNA Course

Implementing and Administration of Microsoft Windows 2000 Directory Services

MS Course: "Basic Administration Of Microsoft Windows 2000"

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Krisztián based?

Krisztián is based in Darmstadt, Germany.

What languages does Krisztián speak?

Krisztián speaks the following languages: Hungarian (Native), German (Advanced), English (Intermediate).

How many years of experience does Krisztián have?

Krisztián has at least 21 years of experience. During this time, Krisztián has worked in at least 19 different roles and for 15 different companies. The average length of individual experience is 1 year. Note that Krisztián may not have shared all experience and actually has more experience.

What roles would Krisztián be best suited for?

Based on recent experience, Krisztián would be well-suited for roles such as: IT-Soc/Vulnerability, IT Security Compliance Hardening Specialist, IT-Webcheck Team.

What is Krisztián's latest experience?

Krisztián's most recent position is IT-Soc/Vulnerability at ITZBund.

What companies has Krisztián worked for in recent years?

In recent years, Krisztián has worked for ITZBund and BWI / Thales Group.

Which industries is Krisztián most experienced in?

Krisztián is most experienced in industries like Information Technology (IT), Government and Public Administration, and Telecommunication. Krisztián also has some experience in Banking and Finance, Aerospace and Defense, and Chemical.

Which business areas is Krisztián most experienced in?

Krisztián is most experienced in business areas like Information Technology (IT), Operations, and Quality Assurance (QA). Krisztián also has some experience in Audit and Project Management.

Which industries has Krisztián worked in recently?

Krisztián has recently worked in industries like Government and Public Administration, Information Technology (IT), and Aerospace and Defense.

Which business areas has Krisztián worked in recently?

Krisztián has recently worked in business areas like Information Technology (IT), Audit, and Operations.

What is Krisztián's education?

Krisztián holds a Bachelor in Technical Computer Engineering Cybernetics - Robotics specialization, System Architect - Operator module from University of Pécs.

Does Krisztián have any certificates?

Krisztián has 13 certificates. Among them, these include: Advanced security clearance by the BMWi (Ü2) according to §9 SÜG, Reliability check according to §7 Aviation Security Act (LuftSiG), and OSCE - Offensive Security Certified Expert.

What is the availability of Krisztián?

Krisztián is immediately available for suitable projects.

What is the rate of Krisztián?

Krisztián's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Krisztián?

To hire Krisztián, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
250
Market avg: 820-980 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.