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Senior Network & Security Engineer

India, Hyderabad · Job Posted June 14, 2026
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Job Description

Alter Domus are looking for a talented Network & Security Engineer to come join our recently opened Hyderabad office. Reporting to the CISO, the Senior Network Security Engineer plays a crucial role in leading our Network Security engineering program, ensuring the highest level of security for our organization. The Senior Network Security Engineer will design, deploy, and manage network infrastructure, with an emphasis on firewall rules management, proxy, WAF deployments, ZTIA solutions, Switching, Routing and SDWAN. This role is also expected to collaborate with the Network Operations team on more complex issues. The Senior Network Security Engineer’s main goal is to design, implement, and maintain security measures to protect the organization's network infrastructure. This role also includes monitoring network traffic for suspicious activity and setting security standards to ensure compliance with security policies and regulations.

Job Responsibility

  • Develop and implement security architectures and solutions to safeguard the organization's network
  • Continuously monitor network traffic and security alerts to identify and respond to potential threats
  • Create and maintain security standards, procedures, and documentation to ensure compliance with company policy and regulations
  • Work closely with IT teams to integrate security measures into network infrastructure and applications
  • Stay updated on the latest security trends, threats, and technologies to enhance the organization's security posture
  • Designing, deploying and maintaining global network redundancy
  • Advanced switching and routing – BGP, OSPF
  • SDWAN, Microsegmentation
  • Securing network system by enforcing security policies, performing configuration review/audit, defining and monitoring access
  • Design and optimize firewall rule sets for improved security, performance, and compliance
  • Perform risk assessments and firewall audits to ensure adherence to network security best practices
  • Analyze technical issues and making recommendations for corrective action
  • Work with the Network Operations team to collaborate on maintaining data networks (Cisco, Dell), Wi-Fi networks (Cisco WLC), next generation firewalls (Check Point)
  • Infrastructure monitoring and proactive optimization to improve network reliability and performance
  • Troubleshooting network incidents and problems
  • Maintaining SLAs by effectively prioritizing and managing issues
  • Coordinating field engineers, vendors and third parties to facilitate and speed up problem resolution
  • Day to day user access request review and implementation (Check Point, Zscaler)
  • Create and maintain detailed network documentation and diagrams
  • Managing Zscaler configuration
  • Undertake rules review to optimize rules being mindful of user experience (e.g., allow rulesets to be permissive enough, yet secure)
  • Deploying and managing ZPA, for ZTNA and app onboarding to ZPA
  • Managing zscaler DLP, Firewall ruleset, policies and PAC files

Requirements

  • Bachelor's degree in computer science, Information Security, or related professional experience
  • 5+ years of hands-on experience as a Network Security Engineer
  • Strong TCP/IP network and security fundamentals
  • CCNP certified or equivalent experience level
  • Additional certifications such as Network+, Security+, and Cloud certifications are also desired
  • Cross platform knowledge and experience to design, configure and troubleshoot WAN/LAN/WLAN technologies in an enterprise environment
  • Knowledge of advanced services and protocols: high availability, load-balancing, BGP, OSPF, SD-WAN, VoIP
  • Hands on experience in implementing and managing next generation firewalls
  • Ability to implement and troubleshoot Firewall policies and IPsec VPNs
  • Experience with Cisco ISE, WLC
  • Knowledge of proxy solutions/web filtering such as Zscaler, end-user VPN solutions
  • Good knowledge of at least 1 NGFW vendor/brand
  • Familiarity with Zero Trust architectures and SASE frameworks
  • Be familiar with Microsoft Windows Technologies, O365, virtualization technologies
  • Being familiar with service ticket management and associated workflows
  • Strong attention to detail and ability to stay always organized while working in a dynamic environment wearing both a Security and Operations Hat

Nice to have

Additional certifications such as Network+, Security+, and Cloud certifications are also desired

What we offer

  • The opportunity to invest in our growth and success through our Employee Share Plan
  • Support for professional accreditations such as ACCA and study leave
  • Flexible arrangements, generous holidays, plus an additional day off for your birthday
  • Continuous mentoring along your career progression
  • Active sports, events and social committees across our offices
  • 24/7 support available from our Employee Assistance Program
  • Plus additional local benefits depending on your location

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