Trainee NetSec - (Internship September 2026)

Internship Opportunity

Network & Cloud Security Intern

Department: Network Security (NetSec)

Location: Zaventem Belgium

Duration: 3-6 months (September 2026)

Level: Master students / Final-year Bachelor (Cybersecurity, IT, Engineering)

About the Internship

We are offering internship opportunities within our Network & Cloud Security (NetSec) team.

This internship provides hands-on exposure to real-world enterprise security environments, covering:

• Cloud Security
• OT / Industrial Security
• Detection & Response
• Infrastructure as Code
• Security Innovation & Automation

Interns will work on strategic, technical, and research-oriented projects with the objective of producing deployable solutions, proof-of-concepts, comparative studies, or automation frameworks.

Internship Topics

Below is a non-exhaustive list of possible subjects.

Cloud Security

• Microsoft Security Copilot
• Development of automated O365 / Azure / AWS audit tools (CIS, MS DSC, ISO frameworks)
• Zero Trust architecture implementation in AWS, Azure, and GCP
• Incident response & digital forensics in cloud environments
• Data encryption strategies (at rest & in transit)
• Microsoft Priva (GRC / ISG integration)

Projects may include:

• Automation development
• Compliance alignment
• Architecture design
• Risk analysis and mitigation

Focus areas:

• Pipeline automation
• Secure coding best practices
• Cloud-native security controls

OT & Industrial Security

• Creation of an OT lab (IEC104, Modbus, MQTT, DNP3, TIA Portal)
• OT solution comparison (Armis, Defender for OT, Nozomi, Trend Micro)
• Secure remote access in ICS environments (VPN, jump servers, OT PAM)
• (I)IoT device security assessment & hardening
• OT honeypot deployment and threat analysis
• Embedded device security in industrial control systems

Projects may involve:

• Lab simulation
• Vulnerability assessment
• Hardening implementation
• Comparative evaluation reports

General Cybersecurity & Innovation

• DLP technology comparison (Varonis, Netskope, Microsoft Purview)
• Fortinet full fabric implementation
• SYSLOG / Mini-SIEM implementation
• AI-driven firewall or threat detection research (inspired by Darktrace-like models)
• Splunk architecture deployment via Terraform & Ansible
• Puppet server automation project
• Secure deployment of local AI (ChatGPT-like) with sandboxing & risk mitigation
• Advanced malware analysis & reverse engineering
• Compliance automation (GDPR, HIPAA, PCI-DSS)
• XDR / EDR comparison (HarfangLab, Defender, Trend Micro, etc.)
• SIEM comparison (Splunk, Sentinel, QRadar, ELK, open-source)
• MS PKI lab implementation
• Active Directory compromise & secure migration scenario
• Gamified social engineering awareness platform
• Social engineering awareness campaign design & execution

What You Will Gain

• Hands-on experience in enterprise-grade security environments
• Exposure to modern cloud & OT infrastructures
• Experience in automation & Infrastructure-as-Code
• Research & comparative analysis experience
• Mentorship from experienced security engineers

Profile Required

• Master’s or final-year Bachelor student in Cybersecurity, IT, Network Engineering, or related field
• Strong interest in cloud, network, and infrastructure security
• Analytical mindset and structured approach
• Ability to work independently and produce technical documentation
• Scripting skills (Python, PowerShell, Bash) are a strong plus
• Knowledge of cloud platforms (Azure, AWS, GCP) is an asset
• Familiarity with networking fundamentals (TCP/IP, firewalls, VPN, DNS)

Important Note

The internship subjects listed above represent a preliminary and non-exhaustive set of ideas.

We strongly encourage students to propose their own internship topics, particularly those aligned with:

• Emerging cybersecurity trends
• AI-driven security
• Cloud-native security innovation
• Automation and scalable security services

Thales, entreprise Handi-Engagée, reconnait tous les talents. La diversité est notre meilleur atout. Postulez et rejoignez nous !