Summary
Overview
Work History
Education
Skills
Websites
Certification
Accomplishments
Timeline
Generic
Nachiket Kulkarni

Nachiket Kulkarni

Pune

Summary

Dynamic cybersecurity leader with extensive experience at Ernst & Young, specializing in risk assessment and cloud security. Proven track record in managing compliance initiatives and implementing robust security strategies. Adept at vulnerability management and fostering cross-functional collaboration to enhance security postures across telecom infrastructures. Committed to driving innovation in cybersecurity solutions.

Overview

15
15
years of professional experience
1
1
Certification

Work History

Manager – Cybersecurity

Ernst & Young
Pune
02.2024 - Current
  • Acting as vCISO for a leading pharmaceutical manufacturer, I am managing security strategy and compliance.
  • Led cloud security architecture reviews for one of the largest FMCG clients.
  • Performed firewall reviews, GPO audits, and risk assessments across hybrid cloud environments.
  • Delivered threat modeling for private 5G implementations for telecom operators in KSA.
  • Built an end-to-end telecom penetration testbed covering 2G to 5G, and IMS protocol stacks.
  • Conducted cloud and on-premises infrastructure security assessments for various sectors.
  • Led IoT security evaluations for a Tier-1 telecom provider in Qatar.
  • Performed data privacy (DPDPA) assessments for a large fertilizer manufacturing organization.

Technical Lead – (Ericsson PIDS Project)

Wipro Limited
Banglore
04.2021 - 02.2024
  • Led security hardening and integration for Ericsson Packet Core nodes (AMF, SMF, UPF, vEPG).
  • Defined security requirements and validated technical solution guides (TSGs) for telecom CNFs.
  • Supported compliance and documentation reviews aligned to client security frameworks.

Senior Software Engineer

Mobileum Technology Pvt Ltd
Banglore
09.2019 - 03.2021
  • Performed security hardening of over 100 Linux/Solaris servers across the telecom infrastructure.
  • Led firewall tuning for SS7 and Diameter nodes, and conducted performance assessments.
  • Design architecture for signaling security solutions for roaming analytics services.
  • Conducted network traffic analysis and implemented protocol-specific security enhancements.
  • Identified and resolved OS and application-level vulnerabilities in Linux environments.

Deputy Manager – GNOC

Quess (IKYA)
Banglore
04.2019 - 09.2019
  • Implemented MBSS review, and established secure configurations across all network components.
  • Supported configuration reviews and core node hardening efforts for an improved security posture.
  • Collaborated with international teams for issue resolution, patching, and access control.

Manager – Network Security

Vodafone Idea
Pune
07.2010 - 04.2019
  • Led an end-to-end cybersecurity strategy for Vodafone Idea’s telecom infrastructure across the Maharashtra and Goa circles.
  • Secured EPC and legacy nodes (MSS, MGW, HLR, HSS, CUDB, IN) using network segmentation, firewalls, and hardening baselines.
  • Performed internal audits and assessments aligned with ISO 27001, TRAI, and DoT compliance frameworks.
  • Conducted vulnerability assessments and router-level security checks; implemented mitigation controls across critical systems.
  • Led MBSS (Minimum Baseline Security Standards) compliance initiatives across telecom infrastructure.
  • Managed access recertification and user provisioning to reduce insider threats, and deployed access banners for user awareness.
  • Served as the primary liaison for TRAI and DoT security audits, including CEIR, LI, and LBS systems.
  • Supported the secure rollout and integration of 2G, 3G, and 4G interconnects, focusing on signaling security and lawful interception readiness.

Education

Master of Engineering -

Savitribai Phule Pune University
06-2019

Skills

Cybersecurity risk assessment and threat modeling

Cloud security (AWS, Azure, Kubernetes)

Network security (firewall, IDS/IPS)

Governance and compliance (ISO 27001, DPDPA)

Vulnerability management and penetration testing

Telecom security (4G/5G, SS7)

Identity and access management

SIEM and security implementation

Websites

Certification

  • Red Hat Certified Engineer (RHCE)
  • Certified Kubernetes Administrator (CKA)
  • ISO 27001:2022 Lead Implementer
  • Pursuing CISSP & CEHv13
  • CCNA Routing & Switching (Training)

Accomplishments

Business Extraordinaire at Ernst & Young LLP

Excellence award at Wipro Ltd

Excellence award at Vodafone Idea Limited

Timeline

Manager – Cybersecurity

Ernst & Young
02.2024 - Current

Technical Lead – (Ericsson PIDS Project)

Wipro Limited
04.2021 - 02.2024

Senior Software Engineer

Mobileum Technology Pvt Ltd
09.2019 - 03.2021

Deputy Manager – GNOC

Quess (IKYA)
04.2019 - 09.2019

Manager – Network Security

Vodafone Idea
07.2010 - 04.2019

Master of Engineering -

Savitribai Phule Pune University

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Nachiket Kulkarni