Cybersecurity Network Security Engineer

Job Title: Cybersecurity Network Security Engineer

Location: Gurugram

Position type- Full Time

Cab Facility- Yes

People Manager role: No

Required Education And Certifications Critical For The Role-

Any Graduate or Post-Graduate (full time)

Required Years Of Experience –

10-15 years of relevant experience

Aon is in the business of better decisions

At Aon, we shape decisions for the better to protect and enrich the lives of people around the world.

As an organization, we are united through trust as one inclusive team and we are passionate about helping our colleagues and clients succeed.

Role Summary

The Cybersecurity Network Security Engineer is responsible for the advanced operation, support and continuous improvement of Aon’s network security controls, with a primary focus on Web Application Firewalls (WAF), API security, firewalls, IDS/IPS and secure web proxy solutions. This role ensures the availability, performance and effectiveness of these security platforms in protecting Aon’s global infrastructure and applications and contributes to the implementation of best‑practice security architectures and standards.

What The Day Will Look Like

• Provide advanced Engineering support for network security solutions, including:
• Web Application Firewalls (WAF)
• API security gateways / API protection platforms
• Firewalls (L3–L7)
• Intrusion Detection/Prevention Systems (IDS/IPS)
• Secure web gateways / proxy solutions
• Root-cause analysis and implementation of corrective and preventive actions
• Participate in planning, coordination and execution of changes in production and DR environments:
• Policy/rule changes on WAF, firewalls, IDS/IPS and proxies
• Platform upgrades, patches and configuration changes
• Monitor capacity, performance and health of network security platforms; recommend and implement tuning and optimization.
• Support continuous improvement of security monitoring and automation:
• Develop or enhance runbooks, SOPs and automation scripts for common operational tasks
• Integrate WAF, firewall, IDS/IPS and proxy events with SIEM and other monitoring tools
• Support security incident response activities related to network and application security events, providing SME input on WAF, API and perimeter controls.
• Create and maintain technical documentation including architecture diagrams, configuration standards, troubleshooting guides and knowledge articles.
• Collaborate with infrastructure, application, cloud and security engineering teams to:
• Design and implement secure network and application architectures
• Embed security controls into new solutions and projects with minimal business disruption
• Contribute to enforcement of network security standards, patterns and policies across on‑premise and cloud environments (e.g., AWS, Azure, GCP).
  
  

Technical Skills

Key Skills and Experience

• Strong hands-on experience in:
• Enterprise WAF technologies (e.g., application-layer filtering, bot protection, rate limiting, virtual patching)
• API security solutions (e.g., API gateways, authentication/authorization controls, schema validation, abuse detection)
• Network firewalls (traditional and next-generation; L3–L7 policy design, NAT, VPN)
• IDS/IPS platforms (signature and behavior-based detection, tuning, rule lifecycle management)
• Secure web gateway / proxy platforms (URL filtering, SSL inspection, threat protection)
• Solid understanding of network protocols and concepts:
• TCP/IP, DNS, HTTP/HTTPS, TLS/SSL, routing and switching basics
• OSI model and troubleshooting network traffic with tools such as tcpdump / Wireshark
• Experience with network security in cloud environments (AWS, Azure and/or GCP), including:
• Cloud-native firewalls, WAFs and security groups
• Hybrid connectivity and protection models
• knowledge of common operating systems (Linux/Unix and Windows).
• Experience with scripting/automation for operations (e.g., Python, PowerShell, bash) to support configuration management, monitoring, and task automation.
• Good knowledge of general security concepts and methods, such as:
• Vulnerability assessments and remediation
• Intrusion detection and incident response
• Security policy and standards implementation
• Zero Trust and micro-segmentation concepts (nice to have).
  
  

Professional Skills

• Strong problem-solving and analytical skills; able to troubleshoot complex, multi-layer network and application issues.
• Ability to translate technical security risks and issues into clear language for non-technical stakeholders.
• Strong interpersonal and communication skills; able to work effectively as part of a geographically distributed team and also independently when required.
• Comfortable working in a high-availability 24/7 environment with change and incident management rigor.
  
  

Required

Experience that will lead to success

• Bachelor’s degree in Computer Science, Information Technology, Engineering or related discipline, or equivalent practical experience.
• Significant hands-on experience (typically 10–12+ years) in network security Engineering roles, including direct responsibility for WAF, firewalls, IDS/IPS and proxy solutions.
  
  

Preferred

• Relevant security and network certifications, such as:
• CISSP, CCIE or equivalent
• Vendor or platform certifications (e.g., CCNP Security, PCNSE, cloud security certifications such as AWS/Azure security specialties)
• Experience in large, complex, globally distributed enterprise environments.
  
  

Other Information

• This role is primarily focused on day‑to‑day Engineering excellence and continuous improvement of network and application security controls.
• The function supports a global, 24/7 environment; occasional work outside core business hours may be required to support changes or incident handling.
  
  

How We Support Our Colleagues

In addition to our comprehensive benefits package, we are proud to be an equal opportunity workforce. At Aon, we believe a diverse workforce is an innovative workforce. Our agile, inclusive environment allows colleagues to manage their wellbeing and work/life balance while empowering you to be your authentic self.

Furthermore, all colleagues enjoy two “Global Wellbeing Days” each year, encouraging them to take time to focus on themselves. We offer a variety of workstyle options through our Smart Working model, but we also recognize that flexibility goes beyond just the place of work... and we are all for it!

Our continuous learning culture inspires and equips colleagues to learn, share and grow, helping them achieve their fullest potential. As a result, Aon colleagues are more connected, more relevant and more valued.

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