Mruthul N C
Bangalore
Summary
7.5 years of experience as a security professional specializing in vulnerability management, threat analysis, and risk mitigation within large-scale enterprise environments.
Currently supporting Oracle Health as part of the Security Architecture team, safeguarding critical assets through security approvals, risk assessments, and network, and cloud security analysis.
Overview
7
7
years of professional experience
3
3
Certifications
Work History
Cyber security engineer III
Oracle
BENGALURU
12.2024 - Current
- Conduct semi-annual reviews of firewall rule sets within the PCI enclave, ensuring they meet PCI DSS requirements.
- Assess and authorize URL filtering requests to balance business access needs with organizational security standards. This includes validating legitimacy, mitigating risks, and maintaining compliance.
- Evaluate and approve network ACL requests to ensure that access rules are aligned with security policies, and operational requirements.
- Actively participate in weekly Risk Advisory Board meetings to review ACL exception requests, collaborate with GRC, and provide detailed technical risk assessments.
- Conducted a comprehensive review of Palo Alto firewall rule sets across the ASP environment, covering both DMZ/internal and client firewalls.
- Conduct biannual reviews of all OCI network security controls for the clients, including inbound/outbound firewall rules, load balancer configurations, SSL/TLS settings, WAF policies, and segmentation controls.
- Review vulnerability data on a daily basis, track changes in exposure levels, and generate customized weekly reports for system owners, highlighting identified risks.
- Ensure compliance with industry standards such as HIPAA, NIST, and CIS benchmarks to align with security objectives.
NETWORK SECURITY ENGINEER
LUMEN TECHNOLOGIES
BENGALURU
11.2022 - 12.2024
- Implemented access control and managed rule-set filters on specific ports, IP addresses, and customer-defined events, utilizing Palo Alto, Cisco ASA, and FortiGate firewalls.
- Analyzed firewall logs using various tools to identify and mitigate security threats.
- Conducted firewall vulnerability testing, and generated comprehensive reports to enhance security posture.
- Assisted in the development and implementation of logical user access policies, standards, and guidelines, balancing business requirements with risk tolerance.
- Participated in special projects, serving as a technical advisor for various information security and user access initiatives aligned with business and technological advancements.
- Assisted users and management in establishing and maintaining adequate audit trails to support account reconciliation, fraud detection, and the maintenance of secure information systems.
- Created and managed IPSec tunnels and remote access VPNs, enhancing secure connectivity for remote users.
- Developed and maintained Intrusion Prevention System (IPS) rules on firewalls to protect against emerging threats.
NETWORK ENGINEER
VELOCIS SYSTEMS PRIVATE LIMITED
BENGALURU
03.2020 - 11.2022
- Monitored and troubleshot network devices, including Cisco switches, FortiGate, SonicWALL, and Palo Alto firewalls, as well as Cisco Wireless LAN Controllers (WLC) and other Forti devices.
- Configured FortiGate firewalls (500D, 600E, 100D), Palo Alto 5220, and SonicWall NSA 2600, implementing various firewall policies and NAT configurations.
- Managed and troubleshot ASA firewalls with multiple NAT types, including static, dynamic, and PAT.
- Configured and troubleshot routers and switches via TELNET and SSH, with extensive experience on Cisco switches (9200, 2960, 9300, 3850).
- Implemented and troubleshot Layer 3 routing protocols, including OSPF and EIGRP, to ensure efficient network routing.
- Upgraded iOS for Cisco switches, FortiGate firewalls, and Palo Alto firewalls to maintain optimal performance and security.
- Configured and maintained Cisco ACS for centralized access control.
- Managed and configured new devices on the monitoring tool OPM, enhancing network visibility and performance tracking.
Security Analyst
Branding Sparrow Software Solutions Pvt.
Kochin
09.2018 - 03.2020
- Collaborated with IT teams to implement security protocols and best practices.
- Perform in-depth vulnerability scans using Nessus to detect and prioritize security weaknesses across enterprise systems.
- Analyze vulnerability data and threat intelligence to assess risk levels, and develop effective remediation plans.
- Maintain authentication success rates above 95% for security scans by addressing unauthenticated assets.
- Generate detailed reports on vulnerabilities, remediation status, and compliance levels.
Education
Bachelor of Engineering - Electrical, Electronics And Communications Engineering
Jyothi Engineering College -University of Calicut
Thrissur06-2016
Skills
- Firewall management
- Vulnerability assessment
- Risk analysis
- Security compliance
- Network access control
- Cybersecurity frameworks
- System auditing
- Patch management
- Intrusion prevention
- Risk assessment
- Port security
- Disaster recovery planning
- Cloud security
- IPS, IDS, NAT, PAT, DNS, DHCP
- Palo Alto, Fortinet, Cisco ASA, Router, Switches
- Nessus
- TCP, UDP, Wireshark
Certification
CEH V13
Timeline
Cyber security engineer III
Oracle
12.2024 - Current
NETWORK SECURITY ENGINEER
LUMEN TECHNOLOGIES
11.2022 - 12.2024
NETWORK ENGINEER
VELOCIS SYSTEMS PRIVATE LIMITED
03.2020 - 11.2022
Security Analyst
Branding Sparrow Software Solutions Pvt.
09.2018 - 03.2020
Bachelor of Engineering - Electrical, Electronics And Communications Engineering
Jyothi Engineering College -University of Calicut