Alexander Nagy - Security Expert

Q: Where is Alexander based?

Alexander is based in Munich, Germany .

Q: What languages does Alexander speak?

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

Q: How many years of experience does Alexander have?

Alexander has at least 19 years of experience. During this time, Alexander has worked in at least 13 different roles and for 11 different companies . The average length of individual experience is 1 year . Note that Alexander may not have shared all experience and actually has more experience.

Q: What is Alexander's latest experience?

Alexander's most recent position is Security Expert at DAK-Gesundheit .

Q: What companies has Alexander worked for in recent years?

In recent years, Alexander has worked for DAK-Gesundheit , Agentur für Arbeit , Investitionsbank Schleswig-Holstein , DHL , and PwC .

Q: Which industries is Alexander most experienced in?

Alexander is most experienced in industries like Information Technology , Banking and Finance , and Government and Administration . Alexander also has some experience in Transportation , Insurance , and Professional Services .

Q: Which business areas is Alexander most experienced in?

Alexander is most experienced in business areas like Information Technology , Operations , and Quality Assurance . Alexander also has some experience in Project Management and Audit .

Q: Which industries has Alexander worked in recently?

Alexander has recently worked in industries like Banking and Finance , Government and Administration , and Transportation .

Q: Which business areas has Alexander worked in recently?

Alexander has recently worked in business areas like Information Technology , Quality Assurance , and Project Management .

Recommended expert

Munich, Germany

Experience

Nov 2024 - Jun 2025

8 months

Security Expert

DAK-Gesundheit

Pentesting of mobile applications
Code review
Gematik audit
Development of secure software development methods
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and creation of security policies
Management of software systems, SharePoint, PrimeFaces, Git
Compliance with security regulations and .NET, AWS, API
Tools: MobSF, Frida, Android Studio, Drozer, Objection, Azure

Dec 2023 - Nov 2024

1 year

Nuremberg, Germany

Security Architect / Penetration Tester

Agentur für Arbeit

Pentesting of web applications and clients
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, SharePoint, Oracle Financials
Documentation and creation of security policies
Management of software systems, SQL, PrimeFaces, Git
Compliance with critical infrastructure requirements and security regulations, AWS, API

Sep 2022 - Nov 2024

2 years 3 months

IT-Security Manager

Investitionsbank Schleswig-Holstein

Coordination of penetration tests and vulnerability management
Support for audits of basic security concepts
SIEM management
Evaluation and management of security concepts
Project management
Penetration testing of software and API architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and creation of security policies
Management of software systems, SharePoint, PrimeFaces, Git
Compliance with security regulations and AWS

Jan 2022 - Dec 2022

1 year

Penetration Tester

DHL

Pentesting of web and mobile applications
Code review and retesting of findings
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and creation of security policies
Management of software systems, SQL, PrimeFaces, Git
Compliance with security regulations and .NET, AWS
Tools: Burp, SSLyze, Nessus, Wireshark, MobSF, Frida, Android Studio, Drozer, Objection

Jun 2021 - Dec 2021

7 months

Penetration Tester and Project Manager

PwC

Pentesting of mobile applications
Code review
Gematik audit
Development of secure software development methods
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and creation of security policies
Management of software systems, SharePoint, PrimeFaces, Git
Compliance with security regulations and .NET, AWS, API
Tools: MobSF, Frida, Android Studio, Drozer, Objection, Azure

Apr 2021 - May 2021

2 months

Pentest Coordinator and Security Engineer

DHL

Penetration testing of web applications
Code review
Development of secure software development methods
Network testing and SIEM
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and development of security policies
Management of software systems, SQL, PrimeFaces, Git
Compliance with security regulations, .NET, AWS
Tech Stack: Spring Boot, Kotlin, Apache, Jira, AngularJS, Linux, Windows, NetApp, Aruba, Barracuda, Azure, API

Oct 2020 - Apr 2021

7 months

Security Engineer / Penetration Tester

Federal Ministry of the Interior

Penetration testing of web applications
Code review
SIEM
Development of secure software development methods
Creation of security and test concepts
Vulnerability Management
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and development of security policies
Management of software systems, SQL, PrimeFaces, Git
Compliance with security regulations and AWS
Tech Stack: Spring Boot, Java, Apache, Jira, AngularJS, Linux, Splunk

Sep 2020 - Oct 2020

2 months

Penetration Tester and Security Engineer

VHV

Penetration testing of web and mobile applications
Web services testing according to OWASP, BSI, MITRE ATT&CK
SIEM and vulnerability management
Consulting on fixing security vulnerabilities
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and development of security policies
Management of software systems, SQL, PrimeFaces, Git
Compliance with security regulations
Tech Stack: Tomcat, Angular, Java, Linux, SoapUI, iOS, Android, HP Server

Jun 2020 - Sep 2020

4 months

Penetration Tester and Auditor

VHV

Penetration testing of web and mobile applications
Code review
Web services testing according to OWASP, BSI, MITRE ATT&CK
ISO 27001 audit
Consulting on fixing security vulnerabilities
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and development of security policies
Management of software systems, SQL, PrimeFaces, Git
Compliance with security regulations
Tech Stack: Angular, Java, Apache, Linux and Windows Server, iOS

Jan 2020 - May 2020

5 months

Munich, Germany

Penetration Tester and Auditor

Anonymous

Penetration testing of web and mobile applications, web services, and networks according to OWASP, BSI, MITRE ATT&CK
ISO 27001 audit
Consulting on fixing security vulnerabilities
Development of secure software development methods
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and development of security policies
Management of software systems, SQL, PrimeFaces, Git
Compliance with security regulations
Tech Stack: Angular, Java, Apache, Linux and Windows Server, Cisco Switch, Fortinet

Oct 2019 - Dec 2019

3 months

Munich, Germany

Penetration Tester

Anonym

Pentesting according to OWASP, BSI, MITRE ATT&CK Framework
Code Review
Consulting on fixing security vulnerabilities
Developing secure software development methods
Tech Stack: Angular, React, Java, Linux, AWS, iOS, Android

Jun 2019 - Oct 2019

5 months

Penetration Tester and IT Security Consultant, Auditor

Anonym

Pentesting of web and mobile applications
Web services testing according to OWASP, BSI, MITRE ATT&CK
Managed IT projects as Project Security Officer
ISO 27001 Audit
Consulting on fixing security vulnerabilities
Developing secure software development methods
Creating security and test concepts
Tech Stack: Angular, React, Java, Linux, AWS, iOS, Android

Sep 2018 - May 2019

9 months

Passau, Germany

IT Security Consultant and Auditor

Anonym

Threat Modeling
Vulnerability assessment according to OWASP, BSI, MITRE ATT&CK
Managed Bug Bounty Program
Security awareness assessment, SIEM, ISO 27001 audit
System hardening for Industry 4.0 (IT/OT mixed environment)
Consulting on fixing security vulnerabilities
Supporting the project as Project Security Officer
Tech Stack: .NET, CentOS, Windows Server, AWS, Sophos Firewall, Jira, Citrix Netscaler, NetApp, VMware

May 2018 - Aug 2018

4 months

Budapest, Hungary

Penetration Tester

Anonym

Infrastructure penetration testing
Web application and web service penetration testing
Wireless network testing
Consulting on fixing security vulnerabilities
Tech Stack: Windows Server, Windows and macOS clients, React, Sophos Firewall, Cisco Router

Mar 2018 - Apr 2018

2 months

Munich, Germany

Penetration Tester

Anonym

Infrastructure penetration testing
Web application and web service penetration testing according to OWASP, BSI, MITRE ATT&CK
Consulting on fixing security vulnerabilities
Tech Stack: MEAN Stack, Linux, F5 Firewall, NetApp

Nov 2017 - Feb 2018

4 months

Munich, Germany

Penetration Tester

Anonym

Vulnerability assessment and threat modeling for web applications and e-commerce
Advising on fixing security vulnerabilities
Tech stack: Magento, Salesforce, Windows Server, Sophos Firewall, Jira

Jan 2014 - Sep 2017

3 years 9 months

Budapest, Hungary

Security Engineer (Penetration Tester) and Web Developer

Vesper Development Ltd.

Creating websites and web presences
Customer support
Automated security analysis and pentesting
System hardening

Aug 2006 - Jan 2014

7 years 6 months

Budapest, Hungary

IT Support and Administration

Niké Ltd.

Supporting the setup and operation of data centers

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Banking and Finance, Government and Administration, Insurance, Transportation, and Professional Services.

Information Technology

Banking and Finance

Government and Administration

Insurance

Transportation

Professional Services

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Operations, Quality Assurance, Project Management, and Audit.

Information Technology

Operations

Quality Assurance

Project Management

Audit

Skills

.Net
Java
Python
Sql
Linux
Centos
Windows Server (2008, 2012, 2016)
Aws
F5
Sophos Firewall
Azure
Jira
F5 Load Balancer
Citrix Netscaler
Netapp
Weblogic
Fortinet
Salesforce
Barracuda
Sso
Saml
Openid
Oauth
Ios
Android
Aruba
Datadog
Burp Suite Pro
Nessus
Openvas
Nmap
Wireshark
Sslyze
Dirbuster
Nikto
Metasploit
Sqlmap
Netsparker
Splunk
Remedy
Fortify
Owasp (Top 10)
Mitre Attack
Osstmm
Nist
Gematik
Iso 27001
Bsi

Languages

Hungarian

Native

German

Advanced

English

Advanced

Education

Oct 2022 - Present

Middlesex University

MBA · United Kingdom

Diploma · IT and Cyber Security · United Kingdom

Certifications & licenses

Financial Modeling And Valuation Analyst

Google Project Manager Professional

Offensive Security Certified Professional (OSCP)

Certified Ethical Hacker (CEH)

Statistics

Experience

Total positions 18

Experience in Information Technology 13.5 y

Avg length 1 y 1 m

Longest experience 7 y 5 m

Global Experience

Countries worked in 2 (Germany, Hungary)

Primary country Germany

Expertise

Recent roles Security Expert, Security Architect / Penetration Tester, IT-Security Manager

Main industries Information Technology, Banking and Finance, Government and Administration

Main business areas Information Technology, Operations, Quality Assurance

Qualifications

Highest degree Master

Certifications earned 4

Profile

Created

August 2025

Last Update

March 2026

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Frequently asked questions

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

Where is Alexander based?

Alexander is based in Munich, Germany.

What languages does Alexander speak?

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

How many years of experience does Alexander have?

Alexander has at least 19 years of experience. During this time, Alexander has worked in at least 13 different roles and for 11 different companies. The average length of individual experience is 1 year. Note that Alexander may not have shared all experience and actually has more experience.

What roles would Alexander be best suited for?

Based on recent experience, Alexander would be well-suited for roles such as: Security Expert, Security Architect / Penetration Tester, IT-Security Manager.

What is Alexander's latest experience?

Alexander's most recent position is Security Expert at DAK-Gesundheit.

What companies has Alexander worked for in recent years?

In recent years, Alexander has worked for DAK-Gesundheit, Agentur für Arbeit, Investitionsbank Schleswig-Holstein, DHL, and PwC.

Which industries is Alexander most experienced in?

Alexander is most experienced in industries like Information Technology, Banking and Finance, and Government and Administration. Alexander also has some experience in Transportation, Insurance, and Professional Services.

Which business areas is Alexander most experienced in?

Alexander is most experienced in business areas like Information Technology, Operations, and Quality Assurance. Alexander also has some experience in Project Management and Audit.

Which industries has Alexander worked in recently?

Alexander has recently worked in industries like Banking and Finance, Government and Administration, and Transportation.

Which business areas has Alexander worked in recently?

Alexander has recently worked in business areas like Information Technology, Quality Assurance, and Project Management.

What is Alexander's education?

Alexander holds a Master from Middlesex University.

Does Alexander have any certificates?

Alexander has 4 certificates. Among them, these include: Financial Modeling And Valuation Analyst, Google Project Manager Professional, and Offensive Security Certified Professional (OSCP).

What is the availability of Alexander?

Alexander is immediately available full-time for suitable projects.

What is the rate of Alexander?

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