Network Security Engineer

Overview Join a team where innovation meets mission. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. With more than 1,700+ team members, 1,500+ AI & data experts, and 100+ prime contracts, we deliver at scale and with purpose. We’ve been recognized as a Top Workplace by The Washington Post for six consecutive years and named to the Inc. 5000 list of Fastest-Growing Private Companies in 13 of the past 14 years. Credence is a welcoming environment for those looking to grow and make a meaningful impact. We encourage employees to push boundaries and help solve critical, world-changing federal challenges. Position Summary Credence has an immediate opening for a Network Security Engineer to join our internal IT team. This individual will own enterprise network and security infrastructure across physical and cloud-hosted environments, administer multi-vendor firewalls, and maintain compliance-aligned controls within a CMMC Level 2 and SOC 2 audit environment. The role carries meaningful responsibility for SSP accuracy, ISSO support functions, and GCP organization-level governance. The ideal candidate combines deep network security expertise with documentation discipline and a proactive, compliance-first mindset Responsibilities: Network Infrastructure & Operations Provide technical ownership of the corporate WAN, LAN, and wireless infrastructure, including planning, implementation, expansion, and lifecycle management. Monitor and maintain network performance and reliability, ensuring a minimum of 99% uptime for corporate systems, phone systems, and connectivity. Configure and manage routing, switching, firewalls, and VPNs across Palo Alto NGFW (HQ and branch), Palo Alto VM-Series (AWS Commercial), and FortiGate VM (Azure Government). Serve as primary administrator across all firewall platforms, including policy management, rule additions and modifications, allow-list maintenance, and configuration backups; maintain privileged access under a documented change-controlled process. Oversee network configuration management and backups to ensure recoverability and business continuity. Analyze and resolve escalated Tier 2+ network support tickets. Administer enterprise wireless infrastructure across multiple vendor platforms including Cisco, Aruba, and Ubiquiti; manage access point provisioning Security & Compliance Identify, assess, and mitigate network vulnerabilities through proactive monitoring and remediation. Implement and manage network security controls including firewalls, intrusion detection/prevention systems, antivirus, and secure access solutions. Collaborate with Systems Administrators on vulnerability scanning, patch management, and remediation efforts (e.g., Nessus scan results, OS hardening). Support audit readiness and compliance for CMMC Level 2 and SOC 2, including maintaining network-layer…