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Markus SosnowskiMS

Markus Sosnowski

Software Engineer and Network/Cloud Specialist

€800/day
Garching bei München, DE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Markus

As a doctoral candidate in network technology (TUM), I bridge the gap between IT research and implementation. With my focus on network security (like Zero Trust), edge computing, agentic workflows & cloud architectures, I also represent TUM at the Coalition of Secure AI (CoSAI). My experience as Lead Architect in building our own SaaS platform has taught me how to design complex infrastructures to be not only secure but also developer-friendly.

My Focus Areas:

  • Security & Compliance: Building future-proof Zero Trust architectures (including on non-US/EU infrastructure) and consulting on network security.
  • Agentic AI Workflows: From design to security, especially through Zero Trust approaches.
  • Performance & Availability: Optimizing networks, CDNs, and API infrastructures for maximum speed and resilience.
  • Architecture & Consulting: Auditing existing systems, technology selection, and guiding DevSecOps processes.
Through my role as Architecture Lead in building an AI-powered API platform and several years of enterprise experience, I possess a deep understanding of modern software and cloud architectures in addition to my pure network expertise. This allows me to seamlessly integrate infrastructure and security concepts into existing development cycles. As part of my research activities, I have also managed several research projects with industry partners.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Garching bei München (up to 50km)

Experience

  • Aproxymade
    Technical Founder
    January 2025 - January 2026 (1 year)
    Building a Software-as-a-Service product in the field of AI-based API optimization
    • • Design of a highly scalable AI-assisted platform on Hetzner/Google Cloud/Cloudflare
    • • Implementation of the whole fullstack cloud infrastructure and edge components
    • • Market research, customer interviews, design thinking, business-, and product development
    Agentic AI CDN Fullstack
  • Coalition for Secure AI (CoSAI)
    Project Governing Board
    January 2025 - Today (1 year and 5 months)
    Representing TUM at the CoSAI, an open ecosystem of AI and security experts dedicated to share best practices for secure AI deployment and collaborating on AI security research and product development.
    Zero Trust Agentic AI
  • Technical University of Munich
    Research Associate
    January 2020 - Today (6 years and 5 months)
    Network Architecture and Internet Security Research
    • • Conception, design, implementation, and publication of research
    • • Execution of industrial research projects in cooperation with industry partners
    • • Development and maintenance of server infrastructure for Internet-wide scans
    • • Recruitment and management of tutor teams (approx. 20 per year)
    • • Teaching: supervision of lectures and student theses

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Education

  • Doctoral Degree
    Technical University of Munich
  • Master of Science in Engineering
    2019
    Master of Science: Elite-Masterstudiengang Software Engineering

Skill set

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