freiberufler IOT | LLM/AI, Cybersecurity Architecture, Penetration Testing, Mentoring auf freelance.de

IOT | LLM/AI, Cybersecurity Architecture, Penetration Testing, Mentoring

zuletzt online vor 10 Tagen
  • auf Anfrage
  • 1058AM Amsterdam
  • Weltweit
  • en  |  nl
  • 05.11.2025
  • Contract ready

Kurzvorstellung

An offensive security engineer and Python-first developer who hunts real vulnerabilities in AI/LLM systems, web/APIs, and OT/IoT/Robotics, and ships the fixes as code. Help with compliance to RED (Radio Equipment), CRA (cyber resilience act).

Geschäftsdaten

 Gewerbetreibend
 Steuernummer bekannt
 Berufshaftpflichtversicherung aktiv

Qualifikationen

  • Compliance management6 J.
  • Corporate Security
  • Cyber Security20 J.
  • Internet of Things (IoT)
  • Kryptographie6 J.
  • Penetrationstest
  • Security Architektur
  • Solution Architektur
  • System Architektur20 J.
  • Systems Engineering6 J.

Projekt‐ & Berufserfahrung

System and security architect
secure microchip manufacturing, Utrecht
1/2023 – 11/2023 (11 Monate)
Maschinen-, Geräte- und Komponentenbau
Tätigkeitszeitraum

1/2023 – 11/2023

Tätigkeitsbeschreibung

Design, architecture and implementation of the microchips secure manufacturing line system.

Eingesetzte Qualifikationen

Cyber Security, System Architektur, Systems Engineering

Security Architect / System Architect / Consultancy
EV / EVCS industries, Amsterdam
1/2019 – offen (6 Jahre, 11 Monate)
Automobilindustrie
Tätigkeitszeitraum

1/2019 – offen

Tätigkeitsbeschreibung

Various system and security architecture related projects at EV/EVCS industries. Including system redesign, cryptography implementation, compliance and secure posture assessments, penetration testing

Eingesetzte Qualifikationen

Kryptographie, Compliance management, Cyber Security, System Architektur, Systems Engineering

Cybersecurity risk assessments/red team leading/pentesting/architecture (Festanstellung)
Consultancies/Financial/Manufacturing/Industrial, Amsterdam
1/2005 – 1/2019 (14 Jahre, 1 Monat)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

1/2005 – 1/2019

Tätigkeitsbeschreibung

● Risk Assessment & Threat Modelling: Masterful in identifying design and technical vulnerabilities, and in fortifying systems against cyber threats.
● Process Improvement: Skilled in streamlining IT/IoT/manufacturing and security processes for cost reduction and enhanced efficiency.
● System Architecture: Experienced in designing scalable, efficient, maintainable and secure systems based on standards and best engineering and security practises.
● Team Development & Leadership: Experienced in building and leading teams of security experts.
● Security Analysis, Preparedness, Penetration tests and Ethical Hacking: Proficient in evaluating security postures and preparing for evolving challenges.
● Secure SDLC & Software Design and Development: Experienced software and system architect with extensive hands-on expertise in Python, JavaScript, and TypeScript.
● Risk and Damage Assessment: Evaluating risks and current business processes and assets to assess potential damage.
● Targeted Security Assessments: Conducting thorough assessments to identify and address security vulnerabilities.
● Threat Minimization: Identifying and reducing financial and reputational damage from security threats.
● Information Leak Prevention: Minimising the risks of valuable information leakage.
● Team Mentoring: Fostering cohesive teams and robust cybersecurity practices.
● Cost Reduction: Streamlining IT and security processes to reduce costs.
● Development Security Preparedness: Training developers to maintain robust information
systems security.
● Security Posture Improvement: Enhancing the ability to respond to cybersecurity threats.
● Framework Creation: Establishing frameworks for secure process and project
implementation.
● System Architecture Development: Expertly design and redesign systems within IT/OT and
IoT domains, extensively utilising microservices, containerization, and virtualization to enhance critical system factors.

Eingesetzte Qualifikationen

Cyber Security, System Architektur

Über mich

As a freelance offensive security engineer, I specialise in AI/LLM systems, web/APIs, and OT/IoT/Robotics penetration testing, code reviews, risk management, security assessments, and ensuring end-to-end compliance with RED (Radio Equipment Directive) and CRA (Cyber Resilience Act). As well as penetration testing and red teaming, I often take on the role of “Python AI/ML engineer”: building and maintaining LLM features, integrating provider APIs and converting fragile prototypes into stable, documented services.

My stack is Python with UV for fast, reproducible environments. I design stateful LLM apps (prompt engineering, chain composition, tool use, RAG), develop and maintain my own task orchestration and LLM chaining framework, write clean code (often TDD) and conduct thorough reviews to enable teams to work more efficiently. I help to debug ugly issues such as latency spikes, token churn and context bloat, and secure wins via CI/CD and observability.

I am experienced in DevSecOps. I use Docker by default and Kubernetes when needed, as well as RESTful services, SQL and NoSQL with sane caching (Redis/MQ). If a UI is required, I can deliver it in VueJS without impacting the backend.

I deliver security solutions that are built in. I strengthen guardrails, implement context isolation and I/O sanitisation, and conduct adversarial evaluations to prevent the same jailbreak or data exfiltration trick from being used twice. Working with international clients and remote setups is normal for me. If you need someone who can break your system and then deliver the Python code to fix it, this is exactly the kind of work I do.

Weitere Kenntnisse

Broad experience with web and API applications security, LLM/AI integrated systems, OT/ICS security and architecture, development, servers security and configuration, secOps, SecDevOps. Linux/embedded linux security.
Actively develop software using Python 3.8+, TypeScript/JS, Rust. Familiar with C#, and C/C++ , PHP, Java, GoLang. Familiar with Machine Learning (ML), big data, blockchain, low level AI-concepts, and Machine Vision. Experienced with AWS and GCP clouds, linux, *nix systems, familiar with hypervisors, VMs, Docker and containerisation in general, network protocols (Modbus, MQTT, OPC, ) and networks, complex network infrastructures (data-diodes, isolated and semi-isolated layers), (industrial) firewalls and routers.

Persönliche Daten

Sprache
  • Englisch (Muttersprache)
  • Niederländisch (Grundkenntnisse)
Reisebereitschaft
Weltweit
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
  • Vereinigte Staaten von Amerika
Home-Office
bevorzugt
Profilaufrufe
748
Alter
38
Berufserfahrung
17 Jahre und 2 Monate (seit 09/2008)
Projektleitung
16 Jahre

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