Lead Security Engineer

NTT Global Networks

Full–time
Posted on: March 09, 2026
Job Title: Lead Engineer – Security Operations Department: Engineering and Operations Location: Mumbai Reporting: Manager Security Operations Job Type: Full Time Shift: Rotational Shift • PRE-REQUISITES • Strong technical and subject matter expertise in at least four or more of the following security specialties: • Firewall: Cisco, Palo Alto, Checkpoint, Fortinet, Zscaler, Barracuda • VPN - IPSEC, SSL VPN: Ivanti, F5, Cisco, GlobalProtect • NAC: Cisco ISE, Aruba ClearPass • Unified Thread Management (UTM) • SIEM products Qradar, Microsoft Sentinel etc. • Load Balancers: F5 BigIP LTM/GTM, Citrix ADC • Network Security (multi-vendor) experience. • Cloud Infrastructure Mgmt.: Cloud stack, OpenStack, AWS, Azure, Netskope, PaloAlto Prisma • Knowledge on scripting language like Python and automation • Working knowledge and hands-on experience on Linux/Unix OS is desirable. • Customer service experience preferably in a Global Operations Center environment • Ticketing system knowledge • Ability to workdays, evenings and weekends as required; 24x7 support in rotating shifts • Flexibility with the ability to manage stressful situations and adapt to rapidly changing environments and requirements • Analytical thinker willing to “think outside the box” to resolve customer impacting situations on first contact; understand customer pain • Ability to work with Operations and Engineering on the priority of issues to resolve the urgent customer impacting issues first • Aptitude and desire to learn advanced Network Security services. • Creative, flexible thinker who is willing to take initiatives and share alternative solutions with peers and management • Hands-on experience on Vulnerability Scanning, Penetration Testing Tools (Qualys, Nessus, Rapid7) • Exceptional documentation and communication skills • Ability to thrive in a fast paced, multi-cultural, customer-oriented environment • MS Office proficiency • RESPONSIBILITIES • Incident Resolution • Ticket resolution - work on trouble tickets, support the operation of advanced Network Security Services and take escalations • Queue Management - keep a watch on queue and assign tickets • Service Request - working on request for changes as per client requirements • Perform the minor/major changes as per defined SoC process and work instructions • Be a Subject Matter Expert (SME) on a few products • Create Standard Operation Procedure • Attend client calls and other technical meetings • Assist in creation of Root Cause analysis (RCA) • Security Performance Tuning • Identify areas of Service Improvement Program (SIP) for key clients and reduce incidents • Review code upgrade and test implement before rolling on to production • Review documentation • Recognize successful intrusions and compromises through review and analysis of relevant event detail information • Review and update ROE on yearly basis • Other Functions • Work with hardware/software vendors to resolve problems • Coordinate shifts and exchange handoff between various shifts • Cross-train and mentor juniors • Participate in various network and security related projects • Perform other duties as assigned • Any additional task given to the incumbent from time-to-time based on business needs • TRAINING AND CERTIFICATION REQUIRED • CCNA, CCSA, Fortinet NSE-4, PCNSE, CCIE, CEH • EXPERIENCE • Minimum 10 years of progressive, relevant experience and proven capability to work in a complex network environment • EDUCATION • Bachelor in Engineering - Computers/Electronics/Communication or related field • Graduate/Post Graduate in Science/Math/IT or related streams with relevant technology experience • TECHNICAL AND OTHER SKILLS • Knowledge of ITIL, ISO27K, SOC 2 will be beneficial

About Company

NTT Global Networks

https://www.nttglobal.net

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