Matthieu Greiner
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MatthieuGreiner

DevSecOps & security engineer and malware researcher.

Engineering student at EPITA building secure cloud infrastructure, security automation and DevSecOps workflows, and researching how malware evades detection.

Open to a 6-month internship in the United States, starting early 2028.

01/about

Security, from the kernel to the cloud.

Pursuing my Master’s at EPITA, majoring in Cybersecurity.

Passionate about low-level programming, systems security and infrastructure, from kernel internals to cloud-native environments.

Building hands-on experience through apprenticeships at SFR Business and now intuitem, while exploring malware evasion as a student researcher.

Portrait of Matthieu Greiner
Fig. 01 · Matthieu Greiner
School
EPITA
Exchange
Bangkok
Research
LREEPITA Research Lab
Goal
Security Engineer
02/experience

My journey.

2026 – 2028ApprenticeshipCurrent

DevSecOps Engineer (Apprentice)

intuitem · Vélizy

Joined in September 2026 the team behind CISO Assistant, the open-source GRC platform: shipping features, keeping changes aligned with the CI/CD, and answering customers on the Jira support desk.

2025 – 2026Apprenticeship

SSI Engineer (Apprentice)

SFR Business · Paris

IT governance, risk analysis and internal AI development. Built security tooling in Go, automated GRC workflows and contributed to NIS2/DORA compliance efforts.

2025International exchange

Chulalongkorn University (Thailand)

Exchange semester in Bangkok focusing on advanced cybersecurity and cloud computing.

2023 – 2028Education

EPITA, School of Engineering & CS

Specializing in cybersecurity with a focus on systems and networks.

03/skills

The stack behind the security.

devsecops/

Secure CI/CD, containers and orchestration, from the SecureFlow pipeline to Kubernetes at intuitem.

DockerKubernetesSecure CI/CDGit & GitHubExcel & VBA
systems/

Linux, C, networks and kernel internals: the foundations behind the tooling.

Linux & BashCNetwork securityKernel concepts
malware/

Dynamic binary instrumentation to study how malware evades detection on Windows x64.

Intel PinDBIWindows x64Evasion
software/

Python, Go and Swift for security tooling and privacy-first apps; Django and Svelte on CISO Assistant.

PythonGolangSwift & SwiftUIDjangoSvelteWeb interfaces
grc/

Risk analysis, compliance frameworks and supplier assurance, tied back to real systems.

EBIOS RMISO 27001NIS2 & DORASupplier security
Explore the full technical arsenal
04/certifications

Certifications & methodologies.

In prep

CompTIA Security+

Core security

Foundational cybersecurity concepts, operations and risk management.

Certified

EBIOS RM

Risk manager

ANSSI standard for risk assessment and management.

Planned

TOEIC

English · Cambridge C1 held

TOEIC planned during the final year of the engineering degree.

05/projects

Featured projects.

01

SecureFlow

A production-inspired platform that makes secure delivery visible: an authenticated API, dashboard, database, containers and automated security checks in one workflow.

View source & architecture
Public project Evidence
ReactFastAPIPostgresDockerCI scansSemgrepGitleaksTrivyJWT + Argon2
02

CyberTool

Internal security tooling built during my SFR Business apprenticeship to reduce repetitive operational work and support governance workflows. Used by a 12-person team.

The work is not public by design. This card focuses on the engineering scope without exposing internal systems or data.

Professional work · details limited Context
GoAutomationGRC supportReporting
03

wlkom-rootkit

An EPITA SYS2 educational Linux kernel module project, built in an isolated two-VM lab to explore low-level systems, persistence concepts and secure client/server communication.

View source & architecture
Public project Evidence
Linux kernelC + PythonQEMU isolationTCP protocolArgon2id
04

CISO Assistant

Contributing to CISO Assistant at intuitem, an open-source GRC platform, at the crossroads of product engineering, cloud infrastructure and security.

Merged pull requests include data-wizard import and export, custom field types, EBIOS RM and risk matrix fixes.

Ongoing · joined September 2026 Evidence
Open source GRCDjangoSvelteMulti-cloudKubernetes
The platform
200+ frameworks25+ languages4,000+ GitHub stars
View GitHub
06/life

Beyond the keyboard.

01

Guitar

Passionate about music and riffs on electric guitar.

03

Coding

Exploring new languages and automating daily tasks.

04

Open school days

Active representative at EPITA open days and higher education fairs, presenting the school’s programs to prospective students.

05

CTF & competitions

Keeping an eye on cybersecurity competitions and CTF events, sharpening offensive and defensive skills beyond the classroom.

07/contact

Want to chat about security, music or code?

Paris, France · UTC+2