Arunava Mondal
Bengaluru
Summary
Experienced Information Security Engineer specializing in designing and implementing security systems to safeguard digital assets. Skilled in network architecture, encryption technologies, and threat management. Developed policies that bolster resilience against cyber threats and minimized breaches through targeted risk assessments. Led initiatives to implement advanced security measures, enhancing organizational defenses against evolving threats.
Overview
8
8
years of professional experience
5
5
Certifications
Work History
Senior Information Security Engineer
Oracle
Bengaluru
04.2024 - Current
- Implemented security measures in cloud environments to safeguard client information.
- Implemented identity management solutions such as two-factor authentication or single sign-on.
- Deployed encryption technologies to protect sensitive data stored on local machines or transmitted over networks.
- Designed firewalls configurations that ensured the integrity of corporate networks.
- Managed network security operations involving URL whitelisting, blacklisting, threat detection, and mitigation strategies.
- Reviewed and updated security policies to align with industry standards and regulations.
- Reviewed logs from various sources such as routers, firewalls, IDS and IPS devices. for anomalies or malicious activities.
- Led multiple network security projects, including migration activities, and implementation of advanced security measures.
- Took ownership of F5 and OCI WAF security policy management, ensuring robust protection against evolving threats.
Senior Associate, Cyber Security
AT&T
Bangalore
09.2022 - 04.2024
- Led a secured services team responsible for the management of major clients, including Adidas, Siemens Energy, Omron, and Geico.
- Worked 24/7 in network security operations, managing end-to-end security appliances across various firewall types.
- Maintained all firewall operations, including ACLs, NATs, VPN (IPSEC), and performed upgrades to enhance system security.
- Coordinated activities with various vendors to streamline operations. Palo Alto, FortiGate, Check Point, Cisco ASA, Firepower, Zscaler and Prisma.
- Managed LTM module in F5, including creation of nodes, pools, and pool members, along with renewal of F5 certificates.
- Nodes, pool, pool members, and renew the certificates of F5.
Network Engineer II
Cerner
Bangalore
10.2020 - 09.2022
- Here we are working in 12/7 in Network Security Operations. We manage end to end security appliances from all types of Firewalls.
- We have multiple Vendors. Palo Alto, Fortigate, Check point, Cisco ASA.
- Maintained firewall operations, including ACLs, NATs, and VPN (IPSec), ensuring up-to-date security measures.
- Responsible for troubleshooting Network related issues which is recorded over incidents & Change requests.
- Facilitated communication and resolution as point of contact for all VPN IPsec requests.
- Hands-on experience on Cisco Switches, Routers, ASA Firewalls.
- Troubleshooting of LAN technologies like VLAN, VTP, Inter VLAN Routing, VLAN Trunking.
- Knowledge of Routing protocols like RIP, OSPF and BGP.
- Identifying the issues and Configuring Static Routes, importing routes from one VRF to other.
- Configuration of NATs, ACLs on ASA and Palo Alto Firewalls.
- Configuration of Site to Site VPNs on ASA and Palo Alto Firewalls.
- Configured various settings within F5 LTM module to optimize load distribution.
- Configuration of Virtual Servers, Pools, Nodes, Health Monitors, SSL profiles, Policies, SNAT & iRules on F5.
- Knowledge of Virtual Routers, Virtual systems, Version Upgrades, HA on Palo Alto Firewalls.
- Knowledge on Profiles like Persistance, OneConnect, Priority-based Group Member Activation in F5.
- Performed SSL Certificate Renewals on F5 Load Balancers.
- Mentored new team members from day one until they were fully integrated into production.
- Experience in Various Monitoring tools like Nethawk, Bluecat, Blackbird, HPNA and Netscout.
Network Engineer
AT&T
Bangalore
06.2018 - 10.2020
- Identify the appropriate media, cables, ports, and connection to connect Cisco network device to other network devices.
- Understand the purpose and basic operation of the protocols in OSI and TCP/IP models.
- Provide 24x7 network and security support for production infrastructure and perform troubleshooting to resolve problems.
- Coordinated with Cisco TAC for RMA and troubleshooting of critical issues, ensuring timely resolution.
- Resolved high-end customer VPN issues, enhancing user connectivity and satisfaction.
- Handled various LAN and server issues daily, contributing to seamless service delivery.
- Maintaining the network infrastructure, installation, migration and configuration of network client workstation.
- Ensured operational continuity by successfully recovering Cisco routers from failure. and Password breaking.
Education
Bachelor of Technology - Information Technology
MAKAUT University
Kolkata07.2017
Skills
- Routing
- Switching
- Firewalls
- Load Balancers
- Migrations to Next- Gen Firewalls
- Upgradations
- Leadership and training
- Process Improvement
- TCP/IP
- Palo Alto (PAN-OS 81, Panorama OS 91)
- Panorama
- ServiceNow
- Remedy
- Bluecat
- Nethawk
- Blackbird
- Security frameworks (NIST, PCI)
- Cyber Security
- Firewall configuration
- Security policy development
- Access control
- Application security
- Network security
Certification
Cisco Certified Network Associate (CCNA)
Timeline
Senior Information Security Engineer
Oracle
04.2024 - Current
Senior Associate, Cyber Security
AT&T
09.2022 - 04.2024
Network Engineer II
Cerner
10.2020 - 09.2022
Network Engineer
AT&T
06.2018 - 10.2020
Bachelor of Technology - Information Technology
MAKAUT University