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Unisys

Senior Cybersecurity Architect

On site

Brussels, Belgium

Senior

Freelance

24-11-2025

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Skills

Communication Leadership Problem Solving Python PHP Swift Incident Response Malware Analysis Forensics Splunk Decision-making Networking Analytics and Reporting Training Architecture Linux Machine Learning Programming Organization Project Management Analytics Strategic Planning php programming

Job Specifications

Our client is a Cyber Security Operations Centre with a mission to strengthen the IT Security for the whole organization.

Within the unit, the sector’s main objectives are to support threat-based and incident-based decision-making through data analytics and reporting capabilities. Currently two main teams are active in supporting the improvement of mobile security and incident response and machine learning.

Our client is now looking for a Senior Cybersecurity Architect to join and support the unit in the below mentioned responsibilities.

Contract type: Freelancer, with an initial contract duration of 80 days, based on performance.

Location: Brussels with a required on-site office presence at the institution’s office.

Key responsibilities:

Definition of the business requirements for a mobile security program
Definition of the tasks and milestones for the development of the SysDiagnose analysis framework
Definition of the architecture of the projects
Definition of the architecture of the large-scale collection and processing of sysdiagnose files within the Institution.
Define and analyze workflow for mobile devices
Definition of the internal curriculum on mobile device analysis
Preparation of cyber awareness demonstrations and especially in the field of mobile hygiene
Participation and contributing to the preparation of workshops and training on mobile device
Providing support and managing the SAF project and the EU iPhone Check project
Development and maintenance of open-source tools, among which – MISP; Sysdiagnose analysis framework; mobile application for Apple devices, and infrastructure to collect and process sysdiagnose files at scale.
Coordination and review of push requests on open-source projects (mainly SAF)
Reporting of development activities
Interaction with technical teams within the unit and in particular the ones involved with networking (DNS, VPNs, proxies...), digital workspace, helpdesk and user support, reference configuration…

Key requirements:

Very good knowledge of the following areas:
Defining relevant KPI and metrics for incident response, threat detection...
Sysdiagnose analysis using open-source tools
MISP internals
Operating system architecture and behaviours
Linux system administrations
Mobile security advanced threats
Networking
Splunk

Strong experience in the following:
Swift, Python and PHP programming language
CakePHP framework
Presenting in technical conferences
Project management
Incident response, digital forensics and malware analysis
Leading small groups

Ability to bring creative idea and implement them efficiently and fast
Ability to create, support and develop (open source) projects mainly in Python and Swift
Ability to give business and technical presentations
Ability to apply high quality standards

Ability to cope with fast-changing technologies used in the following:
Incident response
Digital forensics and especially mobile forensics
Malware analysis

Very good communication skills with technical and non-technical audiences
Analysis and problem solving skills
Capability to write clear and structured technical documents
Ability to participate in technical meetings and good communication skills

Certification (current or past) will be considered a great advantage:
Strategic planning, policy and leadership (p.e GSTRT)
Defending against advanced threats (p.e GDAT)
Network forensics (p.e. GNFA)
Digital forensics (p.e. GCFA or GCFE)
Reverse engineering of malware (p.e. GREM)
Intrusion analysis (p.e. GCIA)

Fluent in English; additional languages are a plus.
Eligible and willing to undergo an EU LEVEL SECRET security clearance.

About the Company

We are a global technology solutions company that powers breakthroughs for the world’s leading organizations. These solutions — digital workplace, cloud, applications & infrastructure, enterprise computing and business process solutions — help people overcome obstacles and not only reach their greatest potential but go beyond it. For more information about how we deliver for our clients, visit https://www.unisys.com/. Know more