Senior Network & Security Engineer

Role: Senior Network & Security Engineer

Location: Waltham, MA United States OnsiteJDDescription and Location

Role Summary: Capgemini is seeking a Senior Network & Security Engineer to support network operations, firewall administration, secure remote-access solutions, and infrastructure security activities for a distributed enterprise environment.

Key Responsibilities: Administer and support SonicWall firewalls. Implement and troubleshoot firewall rule changes. Manage network connectivity across multiple locations. Perform network troubleshooting and root cause analysis. Support secure remote access solutions. Review and implement security-related configuration changes. Assist with privileged administrative activities. Support network and security operational incidents. Participate in infrastructure transition and stabilization activities. Create and maintain network and security documentation. Work with customer security and infrastructure teams to improve operational maturity.

Required Skills: 7 years of Network and Security Operations experience. Strong SonicWall administration experience. Firewall policy management and troubleshooting. TCP/IP, Routing, Switching, VLANs, DNS, DHCP.VPN and remote access technologies. Network monitoring and diagnostics. Incident response and operational security support. Microsoft infrastructure security fundamentals.

Preferred Skills: CISSP, CISA, GIAC, Security, or equivalent certifications. Zero Trust access solutions experience. Network Access Control (NAC) experience. Microsoft Security technologies. Experience supporting geographically distributed environments. Healthcare or insurance industry experience. Soft SkillsStrong customer-facing communication. Ability to operate independently. Experience working in transition and transformation programs. Strong documentation and process improvement mindset.