Senior Network Security Operations Engineers (L2 & L3) | Rakuten Mobile | Bangalore

Tech Junction Ltd; Bengaluru; On-site; INR 4,500,000 - 7,500,000; Full time

Job summary

Rakuten Mobile in Bangalore, India, seeks Senior Network Security Operations Engineers (L2–L3) to safeguard hyperscale mobile network and enterprise security platforms, manage incident response, and drive governance. You will configure Cisco ASA/FTD/FMC, ISE, IPS, and F5 WAF, collaborating with global teams.

The role requires hands-on expertise, on-site residency in Bangalore, and a proactive mindset. Apply by sending resume to Srashti Shukla at [e-mail]; immediate to 30 days

Qualifications

• Bachelor’s degree in Computer Science, Cybersecurity, Information Technology, Electronics & Communication Engineering, or a related discipline.
• 5+ years of hands-on experience in network security operations, firewall administration, or SOC environments.
• Deep mastery in Cisco security platforms including Cisco ASA, Cisco FTD, and Cisco FMC.
• Proven expertise with Cisco ISE (Identity Services Engine) and IPS technologies.
• Strong hands-on experience managing F5 WAF and enterprise firewall platforms.
• Solid understanding of TCP/IP, routing, switching, VPNs, and packet analysis.
• On-site residency/work authorization in Bangalore, India.

Responsibilities

• Administer, configure, monitor, and troubleshoot Cisco ASA, Cisco FTD (Firepower Threat Defense), and Cisco FMC (Firepower Management Center) platforms.
• Manage Cisco ISE (Identity Services Engine) and advanced Intrusion Prevention Systems (IPS) for threat detection and access control.
• Deploy, configure, and maintain F5 Web Application Firewall (WAF) and enterprise firewall platforms.
• Execute rigorous security operations, log analysis, threat hunting, and rapid incident response (L2 & L3 triage).
• Enforce strict change management protocols, security governance standards, and regulatory compliance frameworks.
• Conduct vulnerability assessments, security hardening, and firewall rule base audits across cloud and on-prem environments.
• Collaborate proactively with global security operations centers (SOC), network engineering squads, and IT stakeholders.
• Respond to high-priority security incidents, perform root-cause analysis (RCA), and implement remediation measures.
• Author comprehensive security operational runbooks, incident reports, firewall change requests, and architecture diagrams.
• Mentor junior security analysts and contribute to continuous improvement initiatives within the security infrastructure team.

Skills

Cisco ASA/FTD/FMC

Cisco ISE

IPS

F5 WAF

Firewall administration

Incident response

Security governance

Networking fundamentals

Cloud and on-prem security

Education

Bachelor's degree in Computer Science, Cybersecurity, Information Technology, Electronics & Communication Engineering, or related discipline

Tools

Cisco ASA

Cisco FTD

Cisco FMC

Cisco ISE

IPS

F5 WAF

Job description

Position Summary

We are seeking exceptionally skilled and experienced Senior Network Security Operations Engineers (L2 & L3) to join our Security Infrastructure Operations team on a full-time basis in Bangalore, India, at Rakuten Mobile. In this critical cybersecurity and network operations role, you will be responsible for securing hyperscale mobile network infrastructure, managing enterprise security platforms, and driving incident response. The ideal candidate will bring extensive hands-on experience in Cisco security appliances (ASA, FTD, FMC), Cisco ISE, IPS, and F5 WAF technologies, alongside a strong background in security governance and change management. If you possess a distinguished background in telecom security operations, we invite you to apply.

Detailed Job Description

As a Senior Network Security Operations Engineer (L2 & L3) at Rakuten Mobile in Bangalore, you will serve as a principal technical authority responsible for safeguarding advanced mobile network architectures and enterprise security infrastructure. Your daily responsibilities will encompass configuring and monitoring Cisco ASA, FTD, and FMC platforms, administering Cisco ISE and IPS technologies, managing F5 WAF and advanced firewall solutions, and executing rigorous incident response workflows. You will drive change management procedures, enforce security governance frameworks, and collaborate with global engineering squads to resolve complex security challenges. Candidates are required to submit their updated resume via email to Srashti Shukla at [e-mail].

Key Responsibilities

• Administer, configure, monitor, and troubleshoot Cisco ASA, Cisco FTD (Firepower Threat Defense), and Cisco FMC (Firepower Management Center) platforms.


• Manage Cisco ISE (Identity Services Engine) and advanced Intrusion Prevention Systems (IPS) for threat detection and access control.


• Deploy, configure, and maintain F5 Web Application Firewall (WAF) and enterprise firewall platforms.


• Execute rigorous security operations, log analysis, threat hunting, and rapid incident response (L2 & L3 triage).


• Enforce strict change management protocols, security governance standards, and regulatory compliance frameworks.


• Conduct vulnerability assessments, security hardening, and firewall rule base audits across cloud and on-prem environments.


• Collaborate proactively with global security operations centers (SOC), network engineering squads, and IT stakeholders.


• Respond to high-priority security incidents, perform root-cause analysis (RCA), and implement remediation measures.


• Author comprehensive security operational runbooks, incident reports, firewall change requests, and architecture diagrams.


• Mentor junior security analysts and contribute to continuous improvement initiatives within the security infrastructure team.

Required Qualifications & Skills

• Bachelor’s degree in Computer Science, Cybersecurity, Information Technology, Electronics & Communication Engineering, or a related discipline.


• Minimum of 5+ years of hands-on professional experience in network security operations, firewall administration, or SOC environments.


• Deep technical mastery in Cisco security platforms including Cisco ASA, Cisco FTD, and Cisco FMC.


• Proven practical expertise with Cisco ISE (Identity Services Engine) and IPS technologies.


• Strong hands-on experience managing F5 WAF (Web Application Firewall) and advanced firewall platforms.


• Solid understanding of networking protocols, TCP/IP, routing, switching, VPNs, and packet analysis.


• Outstanding analytical problem-solving, incident triage, and cross-functional communication capabilities.


• Mandatory residency/work authorization: Ability to operate on-site in Bangalore, India.

Nice-to-Have Skills

• Professional security certifications such as Cisco Certified CyberOps Professional, CCNP Security, CISSP, or F5 Certified Administrator.


• Prior professional experience within telecommunications carriers, mobile network operators (MNO), or large-scale cloud providers.


• Familiarity with security automation scripting using Python, Bash, or REST APIs for threat mitigation.


• Immediate availability for professional mobilization in Bangalore.

Application Information

• Recruiter: Rakuten Mobile / Talent Acquisition


• Contact Name: Srashti Shukla


• Email: [e-mail]


• Phone:


• Application URL: Official Rakuten career portal


• Salary/Rate: Competitive market rate


• Deadline: Immediate


• Notice Period: Immediate to 30 Days


• Contract Duration: Full Time / Permanent (Bangalore)

Recruitment Pro Tip

When applying for this Senior Network Security Operations Engineer position with Rakuten Mobile, ensure your resume explicitly highlights your hands-on Cisco FTD/ASA management, Cisco ISE identity deployment, and F5 WAF expertise.