> Markdown version of [/jobs/ext/4543905-network-security-engineer](https://www.wearedevelopers.com/jobs/ext/4543905-network-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Security Engineer - **Company:** Noblesoft Technologies - **Location:** San Jose, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Application Firewall, Microsoft Azure, Bash Shell, Border Gateway Protocol, Cisco PIX, Cloud Computing Security, Complex Networks, Cyber Security, Domain Name System (DNS), Identity and Access Management, Internet Protocol Security (IP SEC), Intrusion Detection Systems, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Network Protocols, Open Shortest Path First (OSPF), Windows PowerShell, Azure Active Directory, Zero Trust Network Access, Security Information and Event Management, TCP/IP, Virtual Local Area Networks, Software Vulnerability Management, Wide Area Networks, Scripting, Transport Layer Security, Okta, Cyberark, QRadar, Cyber Threat Analysis, Firewalls (Computer Science), Palo Alto Networks, Performance Monitor, Tenable Nessus, Drilldown, Microsoft Sentinel, Fortinet, Firepower, Ddos, Splunk, Cisco, Qualys, Servicenow - **Published:** November 3, 2026 - **Apply:** https://www.thejobnetwork.com/job/2e041f39-978f-4ed2-b293-c69d973a0acf/network-security-engineer ## About the Role * 8+ years of hands-on experience in network security operations, SOC, or managed security services * Deep expertise in firewall administration: Palo Alto Networks (PCNSE preferred), Cisco Firepower/ASA, Fortinet FortiGate, or Check Point * Proficiency with SIEM platforms: Splunk (SPLK-1002/3002 preferred), IBM QRadar, or Microsoft Sentinel * Strong understanding of network protocols: TCP/IP, BGP, OSPF, VLANs, VPNs (IPSec/SSL), DNS, HTTP/S * Experience with vulnerability management tools: Tenable Nessus, Qualys, or Rapid7 InsightVM * Familiarity with IAM and PAM solutions (CyberArk, BeyondTrust, Okta, Azure AD) * Solid understanding of cloud security principles across AWS, Azure, or GCP environments * Demonstrated experience working in an ITIL-based service delivery model with SLA accountability * Strong analytical, troubleshooting, and documentation skills * Ability to work in a 24x7 on-call rotation environment Preferred Qualifications * Industry certifications: CISSP, CISM, CEH, CCNP Security, PCNSE, or equivalent * Experience supporting Fortune 500 or enterprise-scale managed security environments * Exposure to Zero Trust architecture, SASE, or SD-WAN security frameworks * Scripting/automation skills (Python, PowerShell, Bash) for security task automation * Prior experience with ServiceNow for ITSM and incident management workflows Experience supporting VIP/executive-level incidents with executive communication skills ## Description We are seeking a highly skilled Network Security Engineer (L3).., * Serve as the primary L3 escalation point for complex network security incidents, providing deep-dive analysis and resolution beyond L1/L2 capabilities * Lead proactive monitoring and event triage across customer-managed security infrastructure including firewalls, IDS/IPS, SIEM platforms, and endpoint security tools * Perform root cause analysis (RCA) and develop permanent remediation strategies for recurring security incidents and vulnerabilities * Manage and respond to security events related to malware, advanced persistent threats (APTs), DDoS, unauthorized access, and policy violations * Administer and fine-tune security technologies including SIEM (Splunk, QRadar), Firewall (Palo Alto, Cisco ASA/Firepower, Fortinet), PAM, IAM, and Cloud Security tools * Oversee vulnerability management lifecycle - from scanning and prioritization to remediation tracking and reporting * Ensure SLA compliance for incident detection, response, and resolution across all managed accounts * Develop and maintain SOPs, runbooks, and knowledge base articles to enhance team capability and consistency * Participate in change management processes, reviewing and approving firewall rule changes, access requests, and security configuration updates * Provide executive-level incident reports and briefings to client stakeholders and internal leadership as required * Mentor and provide technical guidance to L1 and L2 engineers, supporting skill development and operational excellence * Collaborate with client IT teams, vendors, and third-party security partners on security projects and initiatives