Cyber Security Engineer

Cyber Security Engineer
Viseu
Viseu, Viseu District, Portugal

Cyber Security Engineer & System Accreditation Support

Hybrid – Lisbon (Oeiras)

|

Security Clearance Required

|

Freelance / Technical Assistance

About the Role

At

w
Brain

, we are seeking a

Cyber Security Engineer

to join an international project supporting the

Academy Learning Environment (ALE)

.

This role focuses on developing and maintaining security architecture documentation, supporting system accreditation, and ensuring compliance with security standards. The position requires a
- on professional with deep technical expertise and strong analytical and documentation skills.

Key Responsibilities

• Deliver services in an
  
  agile and iterative model
  
  , organized into weekly sprints with defined deliverables and acceptance criteria.
• Develop and maintain
  
  system descriptions
  
  for ALE systems, including network connections, physical locations, and hardware/software inventories.
• Define and implement the
  
  Security Accreditation Plan (SAP)
  
  , ensuring the system meets accreditation requirements for operational readiness.
• Conduct
  
  High-Level Security Risk Assessments (SRA)
  
  to identify assets, threats, vulnerabilities, and mitigations.
• Create and maintain
  
  System-Specific Security Requirement Statements (SSRS)
  
  , aligning controls with applicable policies and standards.
• Develop and update
  
  Security Operating Procedures (Sec
  OPs)
  
  for both administrators and end users, covering areas such as privilege management, patching, logging, data handling, and secure usage.
• Design and document
  
  Security Test and Verification Plans (STVP)
  
  to validate control effectiveness and ensure compliance.
• Collaborate closely with the
  
  Technical Capability (Te
  C)
  
  team to support accreditation, audits, and continuous improvement of security practices.

Requirements

• Valid
  
  Security Clearance
  
  (NATO Secret or equivalent).
• 5+ years of experience
  
  in Cyber Security Engineering within complex or
  - level environments.
• Proven background in:
• Designing and implementing secure, scalable solution architectures.
• Applying and managing technical, physical, and procedural security controls.
• Conducting
  
  risk assessments
  
  and leading incident response activities.
• Supporting or leading
  
  system accreditation processes
  
  .
• Strong communication skills in
  
  English (written and verbal)
  
  .
• Experience producing documentation such as SOPs, security guidelines, and technical manuals.
• Strong analytical and troubleshooting skills with attention to detail.
• Demonstrated ability to work collaboratively within multidisciplinary teams.

Desirable

• Experience working with
  
  NATO
  
  or
  
  NCI Agency
  
  environments.
• Knowledge of
  
  ISO/IEC 27001
  
  or equivalent standards.
• Familiarity with configuration, risk, and documentation management tools.
• Experience supporting
  
  audits and compliance assessments
  
  .
• Understanding of
  
  Agile delivery methodologies
  
  .

Opportunity Details

• Location:
  
  Oeiras, Portugal (Hybrid)
• Start Date:
  
  January 2026
• Engagement Model:
  
  Freelance / Technical Assistance
• Duration:
  
  Approx. 46 sprints (long-term project)
• Security:
  
  NATO Secret Clearance required

Interested?

Send your CV to

with the subject line:

Cyber Security Engineer – Accreditation Support