Freelance Senior Security Engineer (onsite)
Core
Design, implement, and maintain cybersecurity solutions for government systems and critical infrastructure, ensuring security across on-premise, cloud, and hybrid environments.
Role type
Senior Security Engineer (IC)
Builds
Cybersecurity solutions, security controls, automated monitoring and response tools
Domain
Public sector / Government / Cybersecurity
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Security standards and compliance (ISO 27001, NIS2, GDPR), Identity protocols (SAML, OAuth, OpenID Connect, JWT), Cryptography (AES, GCM, PBKDF2, HMAC, SHA), Network security architecture (NGFW, WAF, IPSec, TCP/IP), Linux/Unix system hardening, Secure SDLC, Scripting and automation
Preferred skills
French language proficiency
Technologies
Splunk, Fortigate, Imperva, AWS KMS, HSMs
Responsibilities
Design and implement security controls aligned with EU regulations; Monitor and investigate security events using SIEM tools; Identify and remediate vulnerabilities and incidents; Develop scripts and automation for security monitoring; Produce technical documentation and audit reports; Collaborate with internal teams and public sector bodies
Seniority
Senior, hands-on IC