Cybersecurity Expert (Freelance)

Passionate about tech, digital, and innovation? Join the 1,800 employees at Smile, the European leader in open-source integration, spread across 20 agencies in 9 countries. Collaborative spirit and knowledge sharing are at the heart of our DNA. Our experts push the boundaries every day to build a smarter, more efficient, and more responsible digital world. Here, we don’t just follow trends, we create them! 🌟 Join Smile in Brussels and take part in projects that truly matter! 🏆

We are currently looking for a talented Cybersecurity Expert (Freelance) to join our dynamic team and work on high-impact projects for one of our major clients.

Position Overview

• Status: Freelance
• Location: Brussels, Belgium (Hybrid model: 2-3 days of remote work per week)

Your Responsibilities
As a Cybersecurity Expert, your daily missions will include:

• Assessing the security posture of infrastructures, applications, and cloud environments, and recommending remediation plans.
• Designing and implementing security architectures and controls (IAM, network segmentation, encryption, Zero Trust).
• Monitoring, detecting, and responding to security incidents in collaboration with SOC teams (SIEM, EDR/XDR).
• Managing vulnerabilities: scanning, prioritization, and follow-up of corrective actions.
• Contributing to compliance with standards and regulations (ISO 27001, NIS2, GDPR, DORA where applicable).
• Integrating security into development and DevOps processes (DevSecOps, secure code reviews, pipeline security).
• Writing security policies and procedures, and raising awareness among teams.
• (For Senior profiles) Acting as a trusted advisor to clients, steering security roadmaps, and mentoring team members.

Profile & Technical Skills

• Proven experience in cybersecurity (security engineering, architecture, or operations).
• Strong knowledge of network and system security, IAM, and cloud security (Azure, AWS, or GCP).
• Hands-on experience with security tools (e.g., Microsoft Sentinel, Defender, Splunk, CrowdStrike, Nessus/Qualys).
• Good understanding of security frameworks and regulations (ISO 27001, NIST, NIS2, CIS).
• Certifications such as CISSP, CISM, CEH, OSCP, or Azure Security Engineer (AZ-500) are a strong asset.
• Excellent analytical skills, rigor, and a strong team spirit.
• Language: Professional fluency in English. Knowledge of French or Dutch is a plus.

Why Smile?

• Proximity Management: Our management by peers fosters open dialogue and the implementation of a tailored career path.
• Continuous Learning: Because the digital sector is in constant motion, Smile is committed to making you an expert in your field, thanks to a comprehensive training offer: access to an e-learning platform, financing of certifications, and knowledge-sharing tools.
• Vibrant Culture: Your year will be animated by group and agency events: annual convention, participation in trade fairs, summer party, and formal & informal afterworks.

🚀 The Next Steps

1. First Contact: A phone call to discuss your aspirations and what we can offer you.
2. Meeting: An opportunity to get to know each other and explore your professional background.
3. Business Interview: A discussion with one of our experts to assess your technical skills and define your goals.