Senior Network Security Engineer

Job Description – Senior Network Security Engineer

Role: Senior Engineer – Cybersecurity, Data & Security

Position: Network Engineer

Job Summary

We are looking for an experienced Senior Network Security Engineer with 6–8 years of experience in enterprise networking, network security, and infrastructure protection across on-premises and cloud environments. The ideal candidate should have strong knowledge of networking fundamentals, network protocols, vulnerabilities, firewalls, DNS, load balancers (F5), and Akamai security solutions.

Key Responsibilities

• Design, configure, manage, and troubleshoot enterprise network infrastructure across on-premises and cloud environments.
• Demonstrate strong understanding of networking fundamentals, TCP/IP, OSI model, routing, switching, VLANs, and subnetting.
• Identify, assess, and remediate network vulnerabilities and security misconfigurations.
• Understand network protocols, including high-risk and vulnerable protocols, and recommend appropriate security controls.
• Configure and manage network devices, routers, switches, firewalls, and other network security appliances.
• Manage and troubleshoot enterprise firewalls, firewall policies, access control rules, and network traffic.
• Work with DNS servers, including DNS configuration, administration, troubleshooting, and security.
• Manage and support F5 Load Balancers, including traffic management, application delivery, and load balancing configurations.
• Knowledge of Akamai services, including CDN, WAF, DDoS protection, and application security.
• Support network security operations, incident investigation, root cause analysis, and remediation activities.
• Work with cloud networking components and security controls across cloud environments.
• Collaborate with cybersecurity, infrastructure, and application teams to improve network security posture.
• Support network configuration reviews, security assessments, vulnerability remediation, and compliance requirements.

Required Technical Skills

• 6–8 years of experience in Network Engineering, Network Security, or Infrastructure Security.
• Strong understanding of networking concepts, TCP/IP, OSI layers, routing, switching, VLANs, and subnetting.
• Good knowledge of network protocols such as HTTP/HTTPS, DNS, FTP/SFTP, SSH, Telnet, SMTP, SNMP, and RDP.
• Understanding of high-risk network protocols, insecure services, and associated vulnerabilities.
• Hands-on experience with network devices, routers, switches, and enterprise firewalls.
• Experience managing and troubleshooting firewalls and network access policies.
• Working experience with DNS servers and DNS security.
• Hands-on experience with F5 Load Balancers (LTM/GTM).
• Knowledge of Akamai technologies and application security solutions.
• Understanding of on-premises and cloud networking and security architectures.
• Knowledge of network vulnerability assessment, security hardening, and remediation.

Good to Have

• Experience with cloud networking and security across Azure, AWS, or GCP.
• Knowledge of WAF, DDoS protection, IDS/IPS, VPN, and Zero Trust security.
• Familiarity with network monitoring and troubleshooting tools.
• Relevant certifications such as CCNA, CCNP, Fortinet, Palo Alto, F5, or equivalent.