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 (IT) , Banking and Finance , and Government and Public Administration . Alexander also has some experience in Transportation and Logistics , Insurance , and Professional Services .

Q: Which business areas is Alexander most experienced in?

Alexander is most experienced in business areas like Information Technology (IT) , Operations , and Quality Assurance (QA) . 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 Public Administration , and Transportation and Logistics .

Q: Which business areas has Alexander worked in recently?

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

Recommended expert

Munich, Germany

Experience

Nov 2024 - Jun 2025

8 months

Security Expert

DAK-Gesundheit

Penetration testing 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
Analysis of vulnerabilities
Automation and information security
Use of Confluence and Jira
Work with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and creation of security policies
Management of software systems, SharePoint, PrimeFaces, Git
Ensuring compliance with security requirements for .NET, AWS, APIs
Tools: MobSF, Frida, Android Studio, Drozer, Objection, Azure

Dec 2023 - Nov 2024

1 year

Nuremberg, Germany

Security Architect / Penetration Tester

Agentur für Arbeit

Penetration testing of web applications and clients
Penetration testing of software and architecture
Analysis of vulnerabilities
Automation and information security
Use of Confluence and Jira
Work 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
Ensuring compliance with KRITIS and security regulations, AWS, APIs

Sep 2022 - Nov 2024

2 years 3 months

IT-Security Manager

Investitionsbank Schleswig-Holstein

Coordination of penetration tests and vulnerability management
Support of audits of basic security concepts
SIEM management
Evaluation and management of security concepts
Project management
Penetration testing of software and API architecture
Analysis of vulnerabilities
Automation and information security
Use of Confluence and Jira
Work 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

Penetration testing of web and mobile applications
Code review and retesting of findings
Penetration testing of software and architecture
Analysis of vulnerabilities
Automation and information security
Use of Confluence and Jira
Work 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

Penetration testing 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
Analysis of vulnerabilities
Automation and information security
Use of Confluence and Jira
Work with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
Documentation and creation of security policies
Management of software systems, SharePoint, PrimeFaces, Git
Ensuring compliance with security requirements for .NET, AWS, APIs
Tools: MobSF, Frida, Android Studio, Drozer, Objection, Azure

Apr 2021 - May 2021

2 months

Pentest Coordinator and Security Engineer

DHL

Pentesting 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
Work 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, .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

Pentesting 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
Work 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 AWS
Tech Stack: Spring Boot, Java, Apache, Jira, AngularJS, Linux, Splunk

Sep 2020 - Oct 2020

2 months

Penetration Tester and Security Engineer

VHV

Pentesting of web and mobile applications
Web services testing according to OWASP, BSI, MITRE ATTACK
SIEM and vulnerability management
Advising on vulnerability remediation
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Work 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
Tech Stack: Tomcat, Angular, Java, Linux, SoapUI, iOS, Android, HP Server

Jun 2020 - Sep 2020

4 months

Penetration Tester and Auditor

VHV

Pentesting of web and mobile applications
Code review
Web services testing according to OWASP, BSI, MITRE ATTACK
ISO 27001 audit
Advising on vulnerability remediation
Creation of security and test concepts
Penetration testing of software and architecture
Vulnerability analysis
Automation and information security
Use of Confluence and Jira
Work 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
Tech Stack: Angular, Java, Apache, Linux and Windows Server, iOS

Jan 2020 - May 2020

5 months

Munich, Germany

Penetration Tester and Auditor

Anonymous

Pentesting of web and mobile applications, web services, and networks according to OWASP, BSI, MITRE ATTACK
ISO 27001 audit
Advising on vulnerability remediation
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
Work 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
Tech Stack: Angular, Java, Apache, Linux and Windows Server, Cisco Switch, Fortinet

Oct 2019 - Dec 2019

3 months

Munich, Germany

Penetration Tester

Anonym

Penetration tests according to OWASP, BSI, MITRE ATT&CK Framework
Code review
Consulting on fixing security issues
Development of 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

Penetration testing of web and mobile applications
Web services testing according to OWASP, BSI, MITRE ATT&CK
Oversight of IT projects as Project Security Officer
ISO 27001 audit
Consulting on fixing security issues
Development of secure software development methods
Creation of security and testing 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 testing, SIEM, ISO 27001 audit
System hardening for Industry 4.0 (IT/OT hybrid environment)
Consulting on fixing security issues
Acting 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 issues
Tech Stack: Windows Server, Windows and macOS clients, React, Sophos Firewall, Cisco routers

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 issues
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 online presences
Providing customer support
Automated security analysis and penetration testing
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

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 (13.5 years), Banking and Finance (2 years), Government and Administration (1.5 years), Insurance (1 year), Transportation (1 year), and Professional Services (1 year).

Information Technology

Banking and Finance

Government and Administration

Insurance

Transportation

Professional Services

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 (18.5 years), Operations (7.5 years), Quality Assurance (4.5 years), Project Management (4 years), and Audit (2 years).

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)

Profile

Created

August 2025

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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 (IT), Banking and Finance, and Government and Public Administration. Alexander also has some experience in Transportation and Logistics, Insurance, and Professional Services.

Which business areas is Alexander most experienced in?

Alexander is most experienced in business areas like Information Technology (IT), Operations, and Quality Assurance (QA). 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 Public Administration, and Transportation and Logistics.

Which business areas has Alexander worked in recently?

Alexander has recently worked in business areas like Information Technology (IT), Quality Assurance (QA), 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 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.