Hire the Best Internet Security Specialists
in Germany
Leinfelden-Echterdingen, Germany
I am a Senior Penetration Tester (currently working at Mercedes-Benz) specializing in manual, deep-dive security assessments for web applications, APIs, and cloud infrastructure. I do not run automated scanners and hand over a 100-page PDF of false positives. I specialize in finding the complex, chained business-logic flaws, multi-tenant isolation issues, and authorization bypasses that automated tools completely miss. **Certifications:** - OSWE (Offensive Security Web Expert) - OSEP (Offensive Security Experienced Penetration Tester) - OSCP+ (Offensive Security Certified Professional) - OSWA, OSWP, KLCP **My Core Focus Areas:** - Web App & API Penetration Testing: Identifying IDORs, mass assignment, complex injection flaws, and authentication bypasses in modern SPAs and microservices. - Network Penetration Testing: Internal/External infrastructure assessments, Active Directory exploitation, and lateral movement. - Cloud Security: Exploiting access control misconfigurations in AWS, Azure, and GCP. **What you receive at the end of the engagement:** - Zero False Positives: Every vulnerability I report is manually verified and proven with exact reproduction steps. - Compliance-Ready Reporting: I deliver formal reports featuring accurate CVSS scoring, board-ready executive summaries, clear PoCs, and developer-centric remediation instructions. - Professional Discipline: I strictly adhere to established Rules of Engagement (RoE) to ensure zero business disruption during testing. Shoot me a message, and I’d be happy to share a redacted sample report so you can see the exact quality of work you will receive before we start.
- Penetration Testing
- Vulnerability Assessment
- Web Application Security
- Web App Penetration Testing
- Metasploit
- Information Security
- Network Engineering
- DevOps
- Application Security
- Phishing Detection
- Black Box Testing
- Encryption
- SQL Injection Mitigation
- .NET Framework
- Kali Linux
Krailling, Germany
Experienced IT consultant, former CISO, tech writer, web developer, modern tinkerer. • 6 years experience as a pentester and IT security professional, documenting and mitigating and vulnerabilities, IEC/ISO 27001 compliance and ISMS implementations. • 9 years web developer and programmer. High proficiency in all major scripting languages, including Python, PHP, Perl, Bash, ZSH, Javascript and Frameworks. • 11 years experience as systems administrator on high-availability web servers, database servers. Hands-on experience on practically all flavors of enterprise-level Linux systems. • 20 years IT media specialist, author for IT magazines and major IT publishers, online and print, CVE advisories and mitigation How-To-Articles in English and German.
- Penetration Testing
- System Administration
- Network Security
- Web Content Development
- Python
- Bash
- Debian
- Ubuntu
- Red Hat
- Technical Manual
- German
- Content Creation
- Documentation
- PHP
- Django
Darmstadt, Germany
I am a highly motivated Microsoft Certified IT Professional with 5+ years of hands-on experience in IT Infrastructure, Cloud Administration, Cybersecurity, and Microsoft 365 environments. I have successfully completed high-value projects on Upwork and helped many clients solve critical IT challenges by providing reliable, secure, and cost-effective solutions. I strongly believe in understanding the client’s goals first, delivering projects on time, and maintaining high-quality communication throughout the entire process. My focus is not only fixing issues, but also recommending long-term improvements and best practices that add real business value. 🎓 Education Bachelor’s Degree in Software Engineering 🏆 Professional Certifications Microsoft Certifications Microsoft Azure Administrator (AZ-104) Microsoft Azure Solutions Architect (AZ-303 / AZ-304) Microsoft Azure Security Engineer (AZ-500) Microsoft Power Platform Fundamentals (PL-900) Microsoft Azure AI Fundamentals (AI-900) Microsoft 365 Enterprise Administrator Expert Microsoft Information Protection Administrator Microsoft Azure Virtual Desktop Specialist Microsoft Identity & Access Administrator Microsoft Certified Hybrid Administrator (AZ-800 / AZ-801) Cybersecurity Certifications Certified Ethical Hacker (CEH v11) Certified Ethical Hacker Master (CEH Master v11) VMware Certification VMware Certified Technical Associate – Data Center Virtualization 2023 💼 Core Expertise ✅ Azure Cloud Administration & Infrastructure ✅ Microsoft Intune & Endpoint Management ✅ Microsoft 365 Administration & Security ✅ Identity & Access Management (IAM) ✅ Azure Active Directory / Entra ID ✅ Microsoft Purview & Data Loss Prevention (DLP) ✅ Information Protection & Compliance ✅ Azure Virtual Desktop (AVD) ✅ Hybrid Infrastructure Management ✅ Virtual Networking & Security Hardening ✅ Security Operations & Monitoring ✅ Storage, Compute & Database Security ✅ Endpoint Security & Device Compliance ✅ Cloud Migration & Infrastructure Optimization 🌟 Why Clients Choose Me ✔ Fast and reliable support ✔ Strong troubleshooting and problem-solving skills ✔ Security-focused approach ✔ Clear communication and project transparency ✔ Client satisfaction and long-term support ✔ Proven experience in enterprise IT environments If you are looking for a dependable Azure, Microsoft 365, Intune, or Security specialist who can deliver professional results with attention to detail, I would be happy to help your business succeed.
- Sentiment Analysis
- Office 365
- Virtual Desktop Infrastructure
- Cost Analysis
- Microsoft Azure
- Cloud Architecture
- System Administration
- Email Support
- Microsoft Teams
- Cloud Management
- Cloud Computing
- Backup & Migration
- Ethical Hacking
- CentOS
- VMware ESX Server
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