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Nathan
Stchepinsky

Cybersecurity Engineer, open-source developer & contributor.


Polytechnique Montréal's logo
Télécom SudParis logo
My Experiences
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    Cybersecurity SOC analyst (L1, L2 & L3) at I-TracingFebruary 2024 - August 2024

    I-Tracing is a cybersecurity major playor of 600 committed cybersecurity experts in France, Switzerland, Great Britain, Hong Kong, Canada, China and beyond delivers transformative know-how from consulting to integration and managed services, SOC and CERT Follow The Sun 24/7. As analyst SOC I am responsible for overseeing layers 1, 2, and 3 of security operations for a major client within a security firm. Tasks include thorough investigation, incident response, and initial remediation efforts. Proficient in utilizing Endpoint Detection and Response (EDR) tools and Security Information and Event Management (SIEM) systems. I operate independently during shifts, managing a significant client's security needs. Proficient in Incident Response Plans (IRP), playbook development, and real-time attack mitigation strategies.

    Blue team

    Splunk

    Sentinel One

    SOAR

    Incident response

    Real-time remediation

    IRP

    playbook

    Cyber threat hunting

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    Pentester Red Team & Blue Team at Dental MonitoringJune 2023 - August 2023

    Dental Monitoring is an international french company specialised I made a complete study of the criticality of all company’s projects (website, mobile applications, servers, AWS infrastructure, ...). For my second intership as pentester in a row, I was in charge of the red team and the blue team. I made a complete study of the criticality of all company’s projects (website, mobile applications, servers, AWS infrastructure, ...), exploited dozens of vulnerabilities and made a complete report of them (with the solutions to fix them).

    Pentest

    Linux

    PHP

    Python

    AWS

    Risk

    analysis

    Vulnerability

    Report

    iOS

    Web application

    API

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    Network and system administrator - President at MiNET AssociationSeptember 2021 - August 2023

    MiNET association is a non-profit organization, Internet provider of the MAISEL SudParis 900’s students since 1991.


    As a system and network administrator at MiNET, I have in particular developped a cloud platform to host VMs on dedicated servers and managed by the self-host hypervisor, Proxmox, and by the user via a self made, open source, web application.


    As president of the Association for 1 year, I managed 30 volunteers, 4 clubs, a huge infrastructure in 8 buildings and a 100k€ budget for its development.

    Proxmox

    CEPH

    Cisco

    Docker

    Linux

    Bash

    Python

    GIT

    Ansible

    System administration

    LXC & qemu

    Gitlab CI-CD

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    Pentester Red Team at Dental MonitoringJuly 2022 - August 2022

    Dental Monitoring is an international french company specialised I made a complete study of the criticality of all company’s projects (website, mobile applications, servers, AWS infrastructure, ...). After 2 months of work, in collaboration with the developers, I discovered and documented 30 pages of vulnerabilities

    Pentest

    Kali

    Linux

    PHP

    Python

    AWS

    Risk

    analysis

    Vulnerability

    Report

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    General Secretary at HackademINTSeptember 2021 - August 2023

    HackademINT is the MiNET's cybersecurity club in charge of participating to cybersecurity competitions (CTFs) and in charge of training Telecom SudParis' volunteers to cybersecurity.

    In 2022 and 2023 we proudly organized the annual Ministry of Armed Forces’s CTF, welcoming more than 5,000 participants over 4 weeks of competition.

    Docker

    Kali

    Linux

    root-me.org

    Cryptography

    Web

    Mobile

    Applications

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    Digital Manager at HorusSeptember 2021 - August 2023

    Horus was the Student's office in 2021/2022 of the schools Télécom Sudparis and Mines Télécom Business-School.

    As digital manager, I created a website (horus.h.minet.net) and a free VPN available for all students of the 2 schools (about 2,500 students).

    API

    Database

    DevOps

    Angular

    Flask

    Github Action

    Docker

    nginx

Have a look at my latest projects

My projects

Development of Zero-TOTP a open source 2FA application based on Zero Knwoledge Encryption

Development and publication of a free and 100% open source, self-host, 2FA web-application using a Zero-Knowledge Infrastructure to safely store and easily retrieve your 2FA codes.

Development of an open-source IAAS cloud hosting platform

Development of a 100% open-source and free cloud hosting application based on a dedicated proxmox cluster and a web interface for managing virtual machines. All VMs and platform were self-host behind our own infrastructure.

Publication of iLocked on the App Store

iLocked is an open-source iOS application which goal is to be able to intuitively and easily send critical information through not encrypted channels (using RSA-4096).