About me

Hi, I'm t3l3machus, Penetration Tester and Cybersecurity Researcher from Athens, Greece 🇬🇷, currently living in Poland 🇵🇱.

I specialize in offensive security — breaking systems, developing offensive security tools, and reporting vulnerabilities. I've also studied music from a young age and now compose and produce game-ready music and SFX.

What i'm doing

  • Penetration Testing

    Offensive Security

    Penetration testing, tool development, vulnerability research, and bug bounty hunting.

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    Content Creation

    Creator of HaxorTechTones, a YouTube channel blending cybersecurity insights with tech storytelling.

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    Music

    Lifelong guitarist and composer with academic training in modern music and harmony.

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    Sound design

    Composing and producing cinematic soundtracks and immersive SFX for games and interactive media.

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Clients

Resume

Experience

  1. Senior Penetration Tester

    2023 — Present

    KMD Poland

  2. Penetration Tester

    2022 — 2023

    DB Schenker

  3. Penetration Tester | IT Security Consultant

    2017 — 2022

    Aristi Consulting

  4. Administrative Support Assistant

    2013 — 2017

    Organization for Mental, Physical Rehabilitation and Health Care

  5. Electric Guitar Teacher

    2011 — 2013

    Opera Conservatory

  6. Musician

    2007 — Present

    Band member, solo guitarist, session musician.

Education - Certifications

  1. Certified DevSecOps Professional (CDP)

    2025

    Practical DevSecOps

  2. Intelligence Research II—Open Source Intelligence (OSINT) Tools & Techniques

    2025

    Mandiant (part of Google Cloud)

  3. Certified AppSec Pentester (CAPen)

    2024

    The SecOps Group

  4. Pro Lab Dante

    2022

    Hack the Box

  5. Certified Ethical Hacker (CEH)

    2019

    EC-Council

  6. Bachelor of Science in Information Technology

    2016-2018

    Hellenic open University

  7. DipLCM(TD) - Diploma in Electric Guitar Teaching

    2008-2012

    London College of Music

  8. Popular Music Theory Grade 8

    2009-2012

    London College of Music

  9. Electric Guitar Playing & Contemporary Music Theory

    2005-2022

    Musical Praxis Conservatory

My skills

  • Web design
    80%
  • Graphic design
    70%
  • Branding
    90%
  • WordPress
    50%

Blog

Contact

Contact Info

- For cybersecurity inquiries, contact me at t3l3machus[at]protonmail.com

- For sound design / music inquiries and support, contact me at haxorTechTones[at]gmail.com

or message me directly on LinkedIn.