We are looking for a Senior AWS Security Engineer to strengthen our cloud security posture and act as a trusted partner to the CISO. This role sits at the intersection of IT, Security, and Architecture, with a strong focus on AWS security, IAM governance, and continuous improvement of security controls.
The ideal candidate combines hands-on technical expertise with strong analytical skills, and is comfortable working in a strategic context while remaining close to implementation realities.
Key responsibilities
Cloud Security & architecture review:
Review and challenge the security posture of AWS architectures, including network design, segmentation strategies, private connectivity (e.g. Privatelink), and EndPoint security (including laptops/workstations).
Assess solutions against security frameworks and best practices, with a strong focus on the AWS Security Pillar.
Provide actionable recommendations to improve overall security maturity.
AWS governance & Security controls:
Manage and optimize AWS Organizations, including Service Control Policies (Scps) and AWS Control Tower.
Strengthen cloud governance frameworks and ensure alignment with regulatory requirements (including NIS2).
IAM & Access management:
Design and improve IAM models following least privilege principles.
Automate roles, permissions, and access reviews within AWS.
Define scalable and secure approaches to identity and access governance.
AWS native Security services:
Evaluate, configure, and continuously improve AWS security services such as:
Guardduty
Security Hub
Cloudtrail
Inspector
Provide expert recommendations on configuration, coverage, and optimization.
Threat protection & perimeter Security:
Enhance perimeter protection using services such as AWS Shield Advanced and related technologies.
Contribute to strengthening detection and response capabilities.
CISO advisory & research:
Act as a trusted advisor to the CISO, capable of:
Conducting in-depth research on complex security topics
Translating business/security challenges into concrete solutions
Providing clear, structured recommendations
Stakeholder collaboration:
Serve as the bridge between IT and Security teams, ensuring alignment and effective communication.
Collaborate with AWS technical representatives and support teams.
Act as a key point of contact for compliance topics, including NIS2.
Profile & requirements
Experience 5-10+ years in IT Security, with strong exposure to AWS environments
Proven experience in cloud security engineering and IAM
Technical Skills - strong expertise in:
AWS Organizations, Scps, Control Tower
IAM design and governance
AWS security services (Guardduty, Security Hub, Cloudtrail, Inspector)
Solid understanding of:
Network security (segmentation, private links)
EndPoint security concepts
Security frameworks and best practices
Soft Skills - analytical mindset with strong problem-solving abilities
Ability to work autonomously and conduct research on complex topics
Team player with a hands-on and humble attitude
Strong communication skills, able to interact with both technical and executive stakeholders
Languages - mandatory: Dutch & English
French is a strong plus
Practical information
Location: Brussels (2-3 days onsite per week)
Type: Long-term mission with a strategic vision
Reporting line: Close collaboration with the CISO
Recruitment process:
Step 1: Technical interview
Step 2: Personality & mindset interview (approach, reasoning, collaboration style)