PAPAN SAHA

DevOps Engineer

Bengaluru, Karnataka, India10 yrs 7 mos experience

Most Likely To Switch

Key Highlights

Expert in enterprise firewall management and network security.
Proven track record in vulnerability assessment and risk mitigation.
Strong hands-on experience with Palo Alto and Cisco firewalls.

Stackforce AI infers this person is a Network Security Specialist with expertise in enterprise firewall management and infrastructure security.

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Skills

Core Skills

Network SecurityFirewall ManagementInfrastructure Management

Other Skills

Palo Alto NetworksFortinetCisco ASACisco SecurityFortinacWeb Application FirewallsFirewallsaciCheckpointSwitchingCisco Firewall SecurityCisco Application Centric Infrastructure (ACI)Checkpoint SecuritySwitchesAruba ClearPass

About

Experienced in Networking and Security Domain. Presently Working at Accenture as a Security Delivery Consultant.

Experience

10 yrs 7 mos

Total Experience

1 yr 10 mos

Average Tenure

2 yrs 6 mos

Current Experience

Accenture

2 roles

Security Delivery Consultant

Dec 2023 – Present · 2 yrs 6 mos

Network Security Engineer with strong hands-on experience in enterprise firewall and Network Access Control (NAC) environments. Specialized in configuration, administration, and lifecycle management of Palo Alto Firewalls, Cisco Firewalls, Azure WAF, and FortiNAC.
Core Technical Expertise:
Firewall rule creation, policy design, NAT configuration, and access provisioning based on business and security requirements
Configuration, maintenance, and firmware upgrades of Palo Alto and Cisco Firewalls
Azure WAF rule creation, tuning, and policy implementation
FortiNAC policy configuration, firmware upgrades, and successful cutover from version 8.8 to 9.4.5
Log Collector upgrades and centralized log management
Certificate renewal and security compliance maintenance
Firewall rule review, audit, and optimization
Vulnerability assessment, remediation coordination, and mitigation strategies
Real-time L2/L3 troubleshooting of firewall and network-related issues
Change implementation following structured ITIL-based change management processes
OEM coordination, ticket handling, and issue escalation management
Strong understanding of network security architecture, access control enforcement, threat mitigation, and maintaining high availability in enterprise environments.

Palo Alto NetworksFortinetCisco ASACisco SecurityFortinacWeb Application Firewalls+2

Security Team Lead

Dec 2023 – Present · 2 yrs 6 mos

Configure firewall rules and policies on Palo Alto, Azure WAF and Cisco firewalls.
Maintain and manage Palo Alto, Cisco firewalls and FortiNAC.
Implement network device changes following enterprise change management process.
Perform firewall firmware upgrades and log collector upgrades.
Configure Azure WAF rules and manage certificate renewals.
Perform real-time troubleshooting of firewall and network issues.
Upgrade FortiNAC firmware and manage policy configurations.
Led FortiNAC migration from version 8.8 to 9.4.5.
Conduct firewall rule reviews and security audits.
Perform vulnerability assessments and mitigation.
Coordinate with OEM vendors for issue resolution.

Infosys

2 roles

Consultant Infrastructure Management

Promoted

Oct 2022 – Nov 2023 · 1 yr 1 mo

Senior Network Security Engineer with strong experience leading enterprise firewall and network infrastructure operations across multi-location data centers. Skilled in firewall policy governance (Palo Alto & Cisco ASA), routing and switching management, firmware and IOS upgrades, and structured change implementation.
Experienced in conducting firewall audits, vulnerability assessments, and driving risk mitigation initiatives while ensuring high availability and compliance. Proven ability to handle critical incident troubleshooting, manage OEM escalations, and strengthen overall network security posture.

FirewallsaciCheckpointPalo Alto NetworksSwitchingCisco Firewall Security+5

Consultant

Oct 2022 – Nov 2023 · 1 yr 1 mo

Configured firewall rules and policies on Palo Alto and Cisco ASA firewalls.
Maintained and supported enterprise network devices.
Implemented changes through standard change management procedures.
Performed firewall firmware upgrades and IOS upgrades on Cisco devices.
Managed multiple data center network environments.
Conducted firewall rule review and vulnerability mitigation.
Provided troubleshooting support for firewall and network related issues.

Capgemini

Senior Security Analyst

Jan 2022 – Oct 2022 · 9 mos · Bengaluru, Karnataka, India

Senior Security Analyst with hands-on experience in firewall policy configuration, access management, and network device administration. Skilled in firewall firmware and Check Point hotfix upgrades, change management implementation, and real-time troubleshooting. Experienced in working with FortiManager and FortiAnalyzer for centralized management and monitoring, ensuring secure and optimized firewall operations.

FirewallsCheckpoint SecurityCheckpointCisco Firewall SecurityFortinetNetwork Security+1

Capgemini technology services india limited

Security Consultant

Jan 2022 – Oct 2022 · 9 mos

Configured firewall rules and maintained enterprise firewall environments.
Performed firewall firmware upgrades and Checkpoint hotfix upgrades.
Worked with FortiManager and FortiAnalyzer for monitoring and management.
Troubleshot network and firewall related issues.
Supported users with firewall access requirements.

Wipro limited

3 roles

Senior Project Engineer

Dec 2019 – Jan 2022 · 2 yrs 1 mo

CheckpointCheckpoint SecurityCisco ASAFortinetCisco Application Centric Infrastructure (ACI)Switches+6

Senior Network Security Engineer

Apr 2018 – Jan 2022 · 3 yrs 9 mos

Installed, configured and maintained enterprise network devices.
Worked on Cisco ACI implementation and fabric configuration.
Managed backups for Checkpoint, FortiGate, Cisco ASA and FTD firewalls.
Implemented firewall policies across ASA, Checkpoint and FortiGate platforms.
Performed network monitoring and troubleshooting.
Handled installation and configuration of Cisco and HP switches and routers.
Performed Checkpoint hotfix upgrades and clustering.

Project Engineer

Apr 2018 – Dec 2019 · 1 yr 8 mos

Network Engineer with strong hands-on expertise in enterprise network deployment, configuration, and troubleshooting across LAN/WAN environments. Experienced in installation, commissioning, and hardware-level deployment of Cisco and HP networking devices.
Technical Expertise:
Configuration and troubleshooting of Layer 2 & Layer 3 switches, routers, and firewalls
Deployment and management of Cisco routers (1941, 867, 2811) and Catalyst 6500 series switches (6513, 6509)
VLAN configuration, inter-VLAN routing, trunking (802.1Q), STP, EtherChannel, and basic routing protocols
LAN infrastructure management for branch networks, ensuring optimized connectivity and secure access control
Installation and configuration of Cisco Access Points for enterprise wireless environments
Network monitoring and fault management using HP Network Node Manager (HP NNM)
Active Directory administration including user management and access provisioning
Antivirus server management and endpoint security maintenance
Hardware installation, commissioning, and troubleshooting of network devices at site level
Strong understanding of network architecture, traffic flow analysis, device-level diagnostics, and ensuring high availability and operational continuity in enterprise environments.

Dhii health tech

2 roles

Network Support Engineer

Oct 2015 – Apr 2018 · 2 yrs 6 mos

Provided network field support while deployed at Wipro.
Configured and maintained Cisco routers, switches and firewalls.
Performed IOS and firmware upgrades across multiple network devices.
Installed and configured Cisco routers, switches, ASA firewalls and FortiGate devices.
Performed PAN-India network troubleshooting.
Maintained LAN infrastructure and network monitoring tools.

Network Engineer At Wipro Limited

Oct 2015 – Mar 2018 · 2 yrs 5 mos

Network Field Support Engineer at Wipro with strong experience in managing multi-vendor network and security infrastructure across PAN India locations. Skilled in configuration, firmware/IOS upgrades, and troubleshooting of Cisco routers & switches, ASA firewalls, Check Point, and FortiGate devices.
Experienced in implementing network/security changes, LAN deployment, configuration backups, and centralized monitoring using HP NNM. Proven ability to resolve complex routing, switching, and firewall issues while ensuring high availability and operational stability.