Maria Saad

Systems & Networks @ Ledger | MSc CS and Security @ Sorbonne University

Paris, Île-de-France, France

About

Sorbonne Université has provided a strong foundation in computer networking and telecommunications through its rigorous Master's program. Currently specializing in networking, coursework emphasizes Internet Protocol Suite (TCP/IP), UDP, and TCP, complemented by certifications in cybersecurity and IoT technologies. Past roles include Web Developer at WIN, where collaboration on diverse projects enhanced hands-on technical expertise. Motivated by a commitment to professional growth, ongoing learning focuses on full-stack development and project management, positioning for impactful contributions in tech-driven environments.

Experience

  • Systems and Networks Administrator at Ledger
    Mar 2026 - Present · 5 mos

    • Automated Jira-based access request workflows using Terraform, reducing processing time by 60%. • Provisioned and managed infrastructure using Terraform and Terragrunt, implementing GitOps workflows through Atlantis. • Supported the IAM migration from LDAP to Okta, managing groups, roles, and access policies within a Zero Trust framework. • Administered and monitored Linux infrastructure, ensuring system reliability, performance, and service availability using Prometheus, Grafana, and Alertmanager. • Developed Bash and Python scripts to automate operational tasks and improve infrastructure efficiency. • Managed and maintained the Device42 CMDB, ensuring accurate infrastructure inventory, resource reconciliation, and data integrity.

  • Technical Workshop Organizer at Google Developer Student Club - Sorbonne Université
    Sep 2023 - Sep 2025 · 2 yrs 1 mo

    Organized and led technical workshops on networks, cloud infrastructure, and cybersecurity, gathering 120+ participants. Topics included ML, DevOps, and security fundamentals.

  • Cyber Security Analyst at CNS
    Jun 2025 - Aug 2025 · 3 mos

    • Conducted Red Team and penetration testing engagements using Nmap, Metasploit, and Wireshark to identify vulnerabilities. • Configured and managed Cisco FTD firewalls, enhancing access control and incident response capabilities. • Supported security incident investigations, producing detailed technical reports to inform stakeholders and guide remediation efforts.

  • Web Developer at WIN
    Jun 2023 - Sep 2023 · 4 mos

    • Engineered responsive user interfaces using React, enhancing user experience and application performance. • Optimized backend data flow through advanced SQL tuning, improving query efficiency. • Collaborated on full-stack feature integration, ensuring seamless functionality across platforms. • Contributed to a dynamic startup environment at WIN, driving innovation in web development.

  • Application Developer at apps2you
    Jul 2019 - Aug 2019 · 2 mos