Tim Julian Eismar

IT Security Student & Professional

Visibility. Response. Resilience.

Tim Julian Eismar
Tim Julian Eismar

Tim Julian Eismar

IT Security Student & Professional

My focus is on threat intelligence, forensics, and robust application security.

21 years old
Bonn, Germany
German, English
B.Sc. IT Security, Leibniz FH (Expected 2025)

About

My journey into technology began with a strong foundation in Mathematics and Computer Science, which naturally led me to the dynamic field of IT Security. Currently, I'm pursuing my degree at Leibniz FH while gaining invaluable hands-on experience as a dual student at Telekom Security.

At Telekom Security, I've had the privilege of contributing to the Threat Intelligence, Fraud Detection, and Digital Forensics teams. This role has given me a comprehensive view of the modern threat landscape and has honed my skills in identifying, analyzing, and mitigating cyber threats. I am driven by a passion for problem-solving and a commitment to making the digital world a safer place.

When I'm not immersed in code or security protocols, I'm an avid outdoorsman, enjoying mountaineering, climbing, and photography. I'm also a firm believer in the power of community and contribute to Open Source projects whenever I can.

Experience

  1. 2022 — PRESENT

    As part of my integrated degree program, I work across several key cybersecurity domains:

    • Threat Intelligence Team: Analyzed emerging threats and provided actionable intelligence.
    • Fraud Detection Team: Monitored for credential leakage and other fraud indicators.
    • Digital Forensics Team: Assisted in digital investigations and incident response.
  2. 2021 — 2022

    Assistant · One Solution GmbH

    Responsible for general warehouse work and packaging.

  3. 2020

    MINT Internship · Westnetz GmbH

    Gained practical experience in electrical engineering, computer science, and mechatronics.

Projects

  • For my bachelor's thesis, "Detection and Classification of Phishing Sites by Analyzing Common Patterns," I utilized clustering to identify phishing sites that stemmed from the same kit. This approach helps in producing actionable threat intelligence.

    • Python
    • PHP
    • Clustering
    • Threat Intelligence
    Bachelor's Thesis placeholder image
  • Nova-Stack: Dynamic Vertical Scaling

    A university project focused on creating a framework for dynamic vertical scaling of modern applications, exploring efficient resource management and cloud infrastructure.

    • Python
    • Docker
    • Ansible
    • Flask
    Nova-Stack placeholder image
  • Malware Analysis with Karton

    Practical research paper on the applications of modularization in malware analysis, using the Karton framework as a case study.

    • Python
    • Karton
    • Malware Analysis
    Karton placeholder image

Skills

Skills

Languages

Python, Java, C++, SQL

Tools

OpenCTI, MISP, YARA, Digital Forensics Tools

Technologies & Frameworks

Docker, Proxmox, Ansible, Flask, FastAPI, Karton

Operating Systems

Windows, Linux, macOS

Certifications

  • Responder Windows

    LetsDefend

  • Cyber Incident Handler

    LetsDefend

  • Open-Source Intelligence Summit 2023

    SANS Institute

Homelab

To complement my theoretical knowledge, I run a homelab which serves as my personal playground for testing, learning, and experimenting with enterprise-grade technologies. It's the backbone of my hands-on experience.

Hardware & Virtualization

Running on a SFF machine, I use Proxmox VE for virtualization, hosting a variety of Linux containers and virtual machines for different services.

Networking & Security

My network is managed with an OpenWRT router for robust security. I leverage VLANs to segregate traffic between my personal devices, IoT gadgets, and the lab environment.

Automation & Services

Configuration is partially automated using Ansible. The lab hosts various services, including a media server, and development environments, all managed as code.

Monitoring

Comprehensive monitoring is in place to track the performance and health of all services, ensuring high availability and providing insights into resource utilization.

Contact

Get In Touch

I'm currently available for new opportunities and collaborations. Whether you have a question or just want to say hi, I'll try my best to get back to you!

Say Hello