Matthieu Greiner
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Technical arsenal

The stack behind the security.

A practical map of the languages, systems and governance methods I use, from low-level engineering and automation to security-by-design, malware research and GRC.

01/devsecops

DevSecOps & Automation

  • Docker

    ContainersSecureFlow

    Containerized services and a production-inspired secure delivery workflow.

  • Git & GitHub

    WorkflowCollaboration

    Source control, readable project history and public technical documentation.

  • Secure CI/CD

    SecuritySecureFlow

    Automated security checks made visible alongside the delivery workflow.

  • Excel & VBA

    AutomationSecurity reporting

    KPI dashboards, data consolidation and recurring governance deliverables.

  • Kubernetes

    OrchestrationCISO Assistant

    Deploying and operating containerized services across multi-cloud environments at intuitem.

02/systems

Security & Systems

  • Linux & Bash

    OSDaily learning

    Systems exploration, network tooling and practical security experimentation.

  • C Programming

    Low-levelEPITA systems

    System programming, performance-aware code and kernel-oriented coursework.

  • Network Security

    NetworkSecurity engineering

    DNS, TLS, HTTP headers and exposed-surface checks through internal tooling.

  • Kernel Concepts

    Lab workIsolated VM lab

    Educational Linux-kernel work for defensive understanding of system behaviour.

03/malware

Malware Research

  • Intel Pin

    DBIStudent researcher

    Dynamic binary instrumentation to observe how Windows x64 malware behaves at runtime.

  • Malware Analysis

    Windows x64Recent samples

    Analysis of recent malware samples to understand their behavior and how they avoid detection.

  • Evasion Techniques

    ResearchOver time

    Tracking how techniques for escaping detection evolve over time.

04/software

Software & Web

  • Python

    SoftwareTeam project

    Built a cooperative game with Poetry, logging, documentation and clean project structure.

  • Golang

    Security toolCyberTool

    Concurrent internal utility for DNS, TLS, HTTP response and security-header checks.

  • Swift & SwiftUI

    iOSBudgify

    Privacy-first mobile app with local data, device authentication and on-device learning.

  • Web Interfaces

    ProductPortfolio & projects

    Responsive interfaces, accessible interaction patterns and technical storytelling.

  • Django

    BackendCISO Assistant

    Backend engineering on an open-source GRC platform at intuitem.

  • Svelte

    FrontendCISO Assistant

    Frontend features and UI work on the CISO Assistant product at intuitem.

05/grc

Governance, Risk & Compliance

  • EBIOS RM

    CertifiedRisk management

    ANSSI methodology for structured risk analysis and security decision support.

  • ISO 27001

    ISMSGRC foundations

    Security policies, risk treatment, evidence and continuous-improvement thinking.

  • NIS2 & DORA

    RegulationReadiness support

    Contributed to compliance topics, reporting material and remediation follow-up.

  • Supplier Security

    Third-partyAssessment support

    Security questionnaires, contractual topics and practical vendor-risk follow-up.

Building something at the crossroads of security and software?

I’m always happy to exchange about engineering, GRC, DevSecOps, malware research or a project worth making safer.