
Senior Network Security Professional
2 weeks ago
World Wide Technology, a global technology integrator and supply chain solutions provider.
They employ more than 10,000 people worldwide and operate in over 2 million square feet of state-of-the-art warehousing, distribution, and integration space strategically located worldwide.
They ranked on Glassdoor's Best Places to Work & Fortune's 100 Best Companies to Work For list for the 13th consecutive year.
Job Title: Security Firewall Engineer
Location: 100% remote / IST
Duration: 6-12 Months
Job Description:
We are seeking a highly capable and experienced Senior Security Engineer to support the design, deployment, and ongoing operations of secure network infrastructure.
This role requires deep hands-on expertise with Fortinet FortiGate Next-Generation Firewalls (NGFW), including advanced threat protection and VPN services, as well as strong proficiency in configuring and managing Citrix NetScaler (ADC) load balancers.
The ideal candidate will have a strong operational mindset with a focus on availability, performance, and security.
Deploy, configure, and maintain FortiGate firewalls, including:
- NGFW features: IPS, application control, web filtering, antivirus, etc.
- IPsec and SSL VPN tunnels for site-to-site and remote access
- High Availability (HA) clustering and health checks
- Firewall rules, NAT, routing, and segmentation policies
Manage and optimize Citrix NetScaler (ADC) appliances for:
- Load balancing of web and application services
- SSL offloading, certificate installation, and renewal
- Content switching, rewrite/responder policies, and access control
Monitor and troubleshoot firewall and NetScaler performance, logs, and alerts
Perform regular security rule reviews, software upgrades, and vulnerability remediation
Assist with incident response and forensic analysis involving firewall and NetScaler traffic
Document configurations, procedures, and operational runbooks
Collaborate with infrastructure, application, and security teams to enforce security standards and support project needs
Required Qualifications:
5–8 years of experience in network security engineering roles
Deep hands-on experience with FortiGate firewalls, including NGFW and VPN features
2–3 years of operational experience with Citrix NetScaler ADC
Strong understanding of TCP/IP, routing (BGP, OSPF), VLANs, and access control concepts
Experience managing security logs and events, and familiarity with SIEM workflows
Ability to perform detailed troubleshooting with packet capture and diagnostics tools
Preferred Qualifications:
Fortinet NSE 4/5 or higher certifications
Citrix networking certifications (CCA-N, CCP-N)
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