- Company Name
- OPTILIAN
- Job Title
- Ingénieur Systèmes, Réseaux et Sécurité (H/F)
- Job Description
-
**Job Title**
Systems, Networks & Security Engineer (M/F)
**Role Summary**
Design, implement, and maintain client and internal IT infrastructures. Lead supervision, resilience, and security of information systems, ensuring high availability and continuous improvement through strategic projects and technology updates.
**Expectations**
- Deliver secure, reliable infrastructure solutions aligned with business objectives.
- Continuously evaluate performance and propose optimizations.
- Maintain up‑to‑date knowledge of emerging technologies and industry best practices.
- Collaborate across engineering, operations, and client teams to achieve success.
**Key Responsibilities**
1. Design and execute supervision and resilience strategies for information systems.
2. Drive infrastructure evolution in line with existing IT resources.
3. Monitor and optimize system performance and capacity.
4. Install, upgrade, and secure hardware and software components.
5. Conduct continuous technology scouting and knowledge sharing.
6. Diagnose and resolve system incidents, recommending performance or security enhancements.
7. Ensure system availability and safety through security controls, backup, and disaster recovery plans.
8. Validate and enforce security standards and compliance requirements.
9. Produce and update operational documentation (manuals, procedures).
10. Contribute to supervision tool design and improvement.
11. Train and advise internal and client teams on best practices.
12. Lead and participate in strategic projects approved by management.
13. Perform international assignments as required.
**Required Skills**
*Technical*
- Virtualization platforms (VMware, Proxmox)
- Operating systems: Linux, Windows
- Scripting: Bash, Perl, Python, PowerShell, SQL, DOS
- Container orchestration: Kubernetes, Apigee, etc.
- Databases: MySQL, Oracle, PostgreSQL, MSSQL
- Network protocols: TCP/IP, DNS, LDAP, SMTP, DHCP, IPsec, VPN (OpenVPN, PPTP)
- Load balancing & firewalls: HAProxy, Netfilter, OPSF
- Web servers: NGINX, Apache 2
- Cybersecurity fundamentals and incident response
*Soft / Professional*
- Strong autonomy, planning, and organizational skills
- Rigorous problem‑solving and structured methodology
- Project management and facilitation of meetings
- Clear technical communication (written & spoken) in English
- Pedagogical aptitude and team collaboration
- Adaptability, discretion, and quality assurance mindset
**Required Education & Certifications**
- Bachelor’s degree in Computer Science, Information Technology, or related field.
- Relevant certifications highly valued:
• VMware Certified Professional (VCP) / VMware Certified Advanced Professional (VCAP)
• Kubernetes Administration (CKA/CKAD)
• Cisco Certified Network Associate (CCNA) / Cisco Certified Network Professional (CCNP)
• Microsoft Certified: Azure Administrator / Security Engineer
• CompTIA Security+/CISSP for security expertise
• Linux Professional Institute Certification (LPIC)
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