Senior Network Security Engineer

Acesoft Labs; Mumbai; On-site; INR 2,000,000 - 3,200,000; Full time

Job summary

Acesoft Labs in Mumbai is seeking a skilled Senior Network Security Engineer (L2+) to join our team onsite. You will manage complex security and network infrastructures and collaborate with customer IT teams.

You will administer Cisco ISE, deploy FTD with FMC, manage ASA firewalls, and tune routing and switching while supporting incident response, security audits, and documentation of configurations.

Qualifications

• Minimum 5 years hands-on experience with Cisco security solutions and enterprise networks.
• Strong knowledge of Cisco ISE, FTD, and FMC.
• Experience managing Cisco ASA firewalls in large environments.
• Solid routing and switching knowledge (OSPF/EIGRP/BGP, VLANs).
• Experience with security audits, documentation, and compliance.

Responsibilities

• Administer Cisco ISE for AAA, 802.1x, posture and profiling.
• Deploy and manage FTD with FMC.
• Support ASA firewalls, upgrades, ACLs, VPNs.
• Perform health checks, tuning, and updates of security devices.
• Respond to incidents and troubleshoot network/security issues.
• Design and support enterprise Routing & Switching infrastructure.
• Collaborate with teams on change management and hardening.
• Create and maintain network/security SOPs and docs.

Skills

Cisco security solutions

Enterprise networks

L2/L3 support

Routing & Switching

Incident response

Tools

Cisco ISE

FTD

FMC

ASA Firewalls

Firepower Management Center

Job description

Job Summary

We are looking for a skilled and experienced Senior Network Security Engineer (L2+) to join our team in Mumbai. The ideal candidate will have hands‑on experience managing and troubleshooting complex network and security infrastructures, with a focus on Cisco ISE, FTD, FMC, ASA Firewalls, and core Routing & Switching.

Key Responsibilities

• Administer, configure, and troubleshoot Cisco Identity Services Engine (ISE) for AAA, 802.1x, posture, and profiling.
• Deploy, manage, and maintain Cisco Firepower Threat Defense (FTD) with Firepower Management Center (FMC).
• Support and manage Cisco ASA firewalls, including upgrades, failover configurations, ACL management, and VPN policies.
• Perform regular health checks, tuning, and updates for all security appliances and policies.
• Respond to and troubleshoot security incidents, network performance issues, and access problems.
• Design, implement, and support enterprise-level Routing & Switching infrastructure (OSPF, EIGRP, BGP, VLANs, STP, etc.).
• Collaborate with internal and customer IT teams on change management and security hardening initiatives.
• Create and maintain documentation for network/security configurations and SOPs.

Required Skills and Experience

• Minimum 5 years of hands‑on experience with Cisco Security solutions and enterprise networks.
• Strong knowledge and experience with Cisco ISE (Policy Sets, Device Administration, Profiling, Posture, Guest Access).
• Proficiency in Cisco FTD & FMC (rule management, intrusion policies, NAT, VPNs).
• Solid experience in managing Cisco ASA firewalls in enterprise environments.
• Good understanding of Routing & Switching protocols and architectures.
• Ability to handle L2+/L3-level support and participate in root cause analysis and solutioning.
• Familiarity with security compliance, audits, and standard documentation practices.

Preferred Certifications (Nice to Have)

• CCNP Security / CCIE Security
• Cisco Certified Specialist ISE / FTD
• ITIL Foundation (optional)

Work Location

Onsite at customer location in Mumbai (some travel may be required to DR sites)