Job Title: Senior Network Security Engineer (Contract)
Employment Type: Contract to Hire
Location: Hybrid
Duration: 8 months, with possible extension
Location: Hybrid (3 days in, 2 days remote)
Role Summary
We are seeking a highly experienced Senior Network Security Engineer (Contract) to provide hands-on technical and operational support for enterprise network security environments. This role requires deep expertise in next-generation firewalls, Zero Trust and ZTNA solutions, VPN technologies, and Network Access Control (NAC).
The engineer will be responsible for day-to-day security operations, audit support, vulnerability and change management, and will participate in an on-call rotation to support critical incidents and outages.
Key Responsibilities
Network Security Engineering & Operations
Lead configuration, administration, and optimization of Palo Alto Networks firewalls, including policy design, upgrades, and complex troubleshooting
Manage and support FortiGate firewalls in an enterprise environment
Administer Palo Alto GlobalProtect VPN for secure remote access
Design, implement, and support Zscaler ZPA and ZIA
Support and enhance Zscaler ZTNA / Zero Trust architecture
Implement and manage ClearPass NAC and TACACS+ for secure network access control
Network & Infrastructure
Provide senior-level support for routing and switching (added advantage)
Collaborate with network and infrastructure teams to ensure secure, scalable designs
Security Governance & Risk Management
Support internal and external security audits and compliance remediation efforts
Lead and participate in vulnerability management, including assessment reviews, remediation coordination, and validation
Drive and follow established change management processes, including impact analysis, approvals, and post-change reviews
Support incident response, root cause analysis, and post-incident reporting
Tools, Monitoring & Documentation
Develop and maintain technical documentation, security standards, diagrams, and SOPs
Use ServiceNow for incident, change, and problem management
Monitor and troubleshoot environments using SolarWinds or similar tools
Utilize Jira for task tracking and project coordination (added advantage)
Experience with Tufin for firewall policy management and compliance is highly desirable
On-Call Responsibilities
Participate in an on-call rotation to support security incidents, outages, and emergency changes
Respond promptly to after-hours alerts related to firewalls, VPN, ZTNA, and NAC services
Perform troubleshooting, mitigation, and recovery activities during on-call events
Document incidents and corrective actions following on-call engagements
Required Skills & Experience
Senior-level, hands-on experience with Palo Alto Networks firewalls
Strong experience managing FortiGate firewalls
Proven expertise with Zscaler ZPA, ZIA, and ZTNA
Experience supporting Palo Alto GlobalProtect VPN
Hands-on knowledge of ClearPass NAC and TACACS+
Strong understanding of enterprise network and security architecture
Experience with security audits, vulnerability management, and formal change management processes
Ability to work independently in a contract role and take ownership of deliverables
Preferred / Added Advantages
Routing and switching experience (Cisco or equivalent)
Experience with Tufin
Familiarity with ServiceNow, SolarWinds, and Jira
Security certifications such as PCNSE, Fortinet NSE, CCNP Security, CISSP, or equivalent
Soft Skills & Contract Expectations
Excellent troubleshooting and analytical skills
Strong written and verbal communication abilities
Willingness to support on-call and after-hours activities as required
Ability to operate effectively in fast-paced, production environments
Strong attention to detail with a security-first mindset
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