Network Security Engineer

About the Company :

Headquartered in California, U.S.A., GSPANN provides consulting and IT services to global clients. We help clients transform how they deliver business value by helping them optimize their IT capabilities, practices, and operations with our experience in retail, high-technology, and manufacturing. With five global delivery centers and 1900+ employees, we provide the intimacy of a boutique consultancy with the capabilities of a large IT services firm.

Role:

Experience: 10+ Years

Work Location:

Network Security Engineer

Key Responsibilities:

• DDI Infoblox

Deploy, configure, and manage Infoblox DDI solutions (DNS, DHCP, IPAM).

Troubleshoot advanced DNS/DHCP/GRID issues and ensure service availability.

Implement security features (DNS Firewall, RPZ, Threat Protection).

Perform IPAM administration, capacity planning, and integration with network tools.

Handle L3 escalations, root cause analysis, and automation tasks.

Collaborate with network/security teams for DDI design and policy enforcement.

• Cisco ISE-NAC

Network Access Control (Cisco-ISE)

Deploy, configure, and manage Cisco ISE for NAC solutions.

Implement authentication/authorization policies (802.1x, MAB, posture).

Troubleshoot complex ISE, RADIUS, TACACS+ issues.

Integrate ISE with AD, PKI, Firewalls, WLC, and switches.

Support network access security, profiling, BYOD, guest access.

Handle escalations and perform root cause analysis.

• Security Compliance & Incident Response

Closure of vulnerability and security audits in sync with security Team.

Respond to and investigate network security incidents.

Ensure compliance with security frameworks and regulatory requirements.

• Collaboration & Documentation

Work closely with infrastructure, security, and application teams to deliver secure network

solutions.

Create and maintain technical documentation, network diagrams, and standard operating

procedures

Technical Expertise in:

• Cisco ISE: Policy configuration, profiling, BYOD, posture validation.
• Strong knowledge of NAC design, policies, and troubleshooting.
• Expertise in AAA, 802.1x, certificates, TrustSec/SXP.
• Strong expertise in DNS, DHCP, IPAM, and GRID architecture.
• Knowledge of DNSSEC, IPv6, Anycast, and redundancy models.
• Minimum 10-15 years of enterprise network on

  7+ years

  of hands-on experience in enterprise network security and managing team

Relevant certifications preferred:

Cisco:

CCNP Security

• Excellent troubleshooting and problem-solving skills.
• Strong written and verbal communication abilities.

Why choose GSPANN

“We GSPANNians” are at the heart of the technology that we pioneer. We do not service our customers, we co-create.

With the passion to explore solutions to the most challenging business problems, we support and mentor the technologist in everyone who is a part of our team. This translates into innovations that are path-breaking and inspirational for the marquee clients, we co-create a digital future with.

GSPANN is a work environment where you are constantly encouraged to sharpen your abilities and shape your growth path, We support you to become the best version of yourself by feeding your curiosity, providing a nurturing environment, and giving ample opportunities to take ownership, experiment, learn and succeed.

We’re a close-knit family of more than 1400 people that supports one another and celebrates successes, big or small. We work together, socialize together, and actively serve the communities we live in.

We invite you to carry forward the baton of innovation in technology with us.

At GSPANN, we do not service. We Co-create.

Discover your inner technologist -

Accelerate your learning -

Feel included -

Inspire and Be Inspired -

Enjoy Life -

Give Back -

We invite you to carry forward the baton of innovation in technology with us.

Let’s Co-create.