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Vincent-P-essy/README.md
Vincent Plessy — Security tooling, automation and systems

LinkedIn  ·  Portfolio  ·  Writing  ·  Email

Security tooling. Automation. Systems.

I build tools that turn operational needs into usable software: security applications, workflow automation and offline web applications.

Security Engineer Apprentice at Société Générale since October 2026, focused on security tooling and automation, alongside my MSc at Epitech Paris. Previously, I developed internal applications and reporting tools during my apprenticeship at SNCF Voyageurs.

My technical interests connect security tooling, automation and systems, with hands-on projects in Python, C#/.NET, C and Linux.


Experience

Société Générale · Security Engineer Apprentice — Tooling & Automation

Security tooling for Group teams internationally, within Cybersec Tooling. My scope combines application and API development, security controls, automation, CI/CD and secure deployment, with technical autonomy over solution design and technology choices discussed with the team.

SNCF Voyageurs · Application Developer Apprentice — Web, Android & Automation

Internal applications for operational teams, alongside Power BI reporting and Excel/VBA automation. I designed and developed Scénar’Express, a railway-incident decision-support application that evolved from Power Apps to an offline PWA and then Android using Capacitor. Its interactive SVG railway map links selected zones and tracks to operational procedures, with PDF.js document viewing.

Apex 3D · Co-founder & frontend developer

Designed and developed a responsive product-catalogue website in HTML, CSS and JavaScript, deployed with GitHub Pages.

Engineering focus

Security tooling Operational automation Systems foundations
Audit trails, incident workflows, authentication and detection rules Reusable security checks, reporting and offline decision-support tools C, memory management, network parsing and Linux

Selected technical projects

Personal projects and technical demonstrations, distinct from my work at Société Générale and SNCF.

Project What it explores Technologies
Security Audit Logger Request audit trails, anomaly rules and role-based API access C# · .NET 8 · SQL Server · Docker
Incident Tracker API Security-incident workflows, JWT authentication and role-based permissions Python · Flask · PostgreSQL
pcap-analyzer Network-capture parsing, attack-pattern heuristics and structured JSON reports C · libpcap
ci-security-gate Reusable checks for secrets, dependencies and Dockerfiles GitHub Actions · Python · Docker
dora-compliance-engine A prototype for collecting audit evidence and evaluating a limited set of compliance controls Python · OPA/Rego · PostgreSQL
Memory allocator Manual memory management and linked memory blocks C

Technical foundations

Area Tools & languages
Backend Python · Flask · C#/.NET · SQL · PostgreSQL
Systems & networks C · Linux · Bash · Wireshark
Development & delivery Git · Docker · GitHub Actions · automated tests
Operational applications JavaScript · HTML/CSS · SVG · PDF.js · PWAs · Capacitor · Power BI · Excel/VBA
Other programming experience Java · TypeScript

Certifications: Microsoft SC-900 · Google Cybersecurity Professional Certificate · Fortinet Certified Fundamentals in Cybersecurity.

More projects — games & interactive applications
  • BackPack Hero — turn-based combat, inventory and equipment in Java.
  • Minecraft Clone — procedural voxel terrain and block interaction with TypeScript and WebGL.
  • CyberPass — a security-evidence application with a Next.js frontend and FastAPI backend.
  • Kernel Sentinel — security-detection experiments with Go and eBPF.

Contributions

Animated view of GitHub contributions

Paris, France · Open to short freelance assignments compatible with my apprenticeship: scoped security reviews, automation and backend development.

Pinned Loading

  1. Cybersecurity-Projects Cybersecurity-Projects Public

    You will find my work on cybersecurity. This work has been useful in my professional life. Vous trouverez mes travaux concernant la cybersécurité. Ces travaux ont été utiles dans ma vie professionn…

    Python 1

  2. Security-Audit-Logger Security-Audit-Logger Public

    Audit trail and anomaly detection tool for REST APIs — .NET 8, Clean Architecture, JWT, Docker

    C#

  3. The-Wave-Music The-Wave-Music Public

    The Wave Music est une plateforme SQL musicale open-source qui permet aux utilisateurs de découvrir, écouter et gérer des morceaux de musique. Le site propose une interface intuitive pour naviguer …

    Python

  4. incident-tracker-api incident-tracker-api Public

    Backend REST API simulating a real-world cybersecurity incident management system. Built with Flask, PostgreSQL, JWT auth, RBAC, Docker, and tested at 97%.

    Python

  5. minecraft-clone minecraft-clone Public

    A Minecraft-inspired voxel world in the browser: infinite procedural terrain, trees, caves, day/night, break and place blocks. Three.js + TypeScript, zero art assets, playable in one click.

    TypeScript

  6. CyberPass CyberPass Public

    SaaS européen de preuves cyber, questionnaires assistés et passeports partageables.

    Python