R

Ranjit Kumar

DevOps Engineer

Delhi, India15 yrs 6 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Over 14 years of experience in IT infrastructure and operations.
  • Expertise in managing complex DC Network Security solutions.
  • Proficient in troubleshooting complex network issues.
Stackforce AI infers this person is a Cybersecurity and Network Security expert in IT Infrastructure.

Contact

LinkedIn

Skills

Core Skills

CybersecurityNetwork Security

Other Skills

FirewallsFortinetCisco ASAFTDFortiManagerFMCPalo Alto FirewallPanoramaASDMCSMFortigateVPN ConfigurationFirewall ManagementNetwork EngineeringCCNA

About

I have over 14.10 years of extensive, hands-on experience in IT infrastructure and operations, with a strong focus on planning, designing, implementing, and maintaining complex DC Network Security solutions. My expertise spans Security Architecture, Security Operations, and large-scale DC migrations and hardware/software Firewall refresh projects. I currently manage over 20000+ FortiGate FW (FG-100E/100F), along with Cisco ASA (5545-X, 5555-X, 5585-X), Cisco Firepower (FPR 1120, FPR-4125, FPR-4145). Cisco Nexus (93180YC-EX, C9336PQ Spine, C9372TX Leaf, C3048TP 3K), and Palo Alto (PA-220, PA-820, PA-5445) appliances. I’m highly proficient in troubleshooting complex network issues using advanced tools and techniques, including debugging, packet tracer, and packet capture analysis. In the past, I have worked in various capacities within the IT industry. These roles have included AM/Team Lead/Administrator/Engineer in Network & Security & Cybersecurity. I hold a Bachelor of Engineering degree in Computer Engineering, graduating in 2008. My expertise lies in Network Security and Cybersecurity. I possess a strong foundation in Cisco technologies, holding certifications including CCNA-R&S, CCNA-Security, CCNP-R&S, and CCNP-Security. Fortinet Certified Associate in Cybersecurity, Fortinet Certified Fundamentals in Cybersecurity In addition to these, I have earned over 4500+ Certificates of Completion from platforms such as LinkedIn, Coursera, Skillsoft, Microsoft, Fortinet, and Udemy.

Experience

15 yrs 6 mos
Total Experience
2 yrs 2 mos
Average Tenure
3 yrs 5 mos
Current Experience

Hcltech

3 roles

DFS DEL-Verizon-DFS-ENGG | Cybersecurity Network Security Engineer (NSE)

Promoted

Oct 2024 – Present · 1 yr 7 mos · Hybrid

  • "VZ-CYSC-EE-ADC/RDC-Clt-LABNWScEng-NSE-RT" Here i am responsible for planning, designing, implementing, managing and troubleshooting of complex modern Verizon Data Centre infrastructure.
  • In which I am handling and Managing 20000+ Fortigate FG-100E firewall, I am Involved in Data Center Migration and Hardware Refresh of all legacy Firewall EoL/EoS From FG-200B and FG-100D to FG-100E. I am also managing Cisco Security Device like ASA 5545-X ASA 5555-X, 5585-X, FPR-4145, FPR-4125. i am handling all the escalation related to migration of DC and legacy firewall.
  • I am doing Configuration and Management of Different vendors firewall in failover mode, implementation & Configuration of VPNs between firewall and routers for secure encrypted communications and Site-To-Site VPN, High-Availability and Redundancy of FW. Security policy using Access-list and NAT/PAT and applying ACE and configuring Object-Group in firewall. Adding Firewall in CSM, FMC, Forti manager, Forti Analyzer.
FirewallsCybersecurityFortinetCisco ASAFTDFortiManager+6

NCR-CS-FirW-EE-T&M-Firewall Supp | Cybersecurity Firewall Support

Aug 2023 – Oct 2024 · 1 yr 2 mos · Hybrid

  • "NCR Corp-NOR-EN-T&M-Firewall Support" Here i am responsible for planning, designing, implementing, management and troubleshooting of
  • complex modern IT data Centre infrastructure. In which I am handling NCR Data Centre and handling Cisco Security Device ASA 5555-x, 5585-x, FTD 2140, Nexus 9K(93180YC-EX) and 3K(C3048TP).
  • Configuration and Management Cisco ASA firewall in failover mode, implementation & Configuration of VPN’s between firewall and routers for secure encrypted communications and Site-To-Site VPN, HSRP Gateway Redundancy, Gateway Load Balancing and Interface tracking, Data VLAN & redundancy, Security policy using Access-list and NAT/PAT and applying ACE and configuring Object-Group in firewall.
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Mosaic-CS-SOC-EE-RFB-RunWrkstrm3.0 | Cyber Security Consultant SecOT

Dec 2022 – Aug 2023 · 8 mos · Hybrid

  • Responsible for planning, designing and managements of complex modern OT infrastructure.
  • Responsible for Sec-OT security of things security operations, cyber security monitoring, Intrusion detection For secured OT networks.
  • Working with Microsoft D4IoT for Continuous monitoring for threats and vulnerabilities, with
  • IoT/OT-aware behavioural analytics and threat intelligence.
  • Proactively addressing vulnerabilities in IoT/OT environment. Identifying risks such as missing patches, open ports, unauthorized applications, and unauthorized subnet connections. Detect changes to device configurations, controller logic, and firmware.
  • Working on leading projects from US, Europe & several Asian regions.
  • Utilizing my hands on experience of networking security technologies (Firewalls, DNS, DHCP, VPNs,
  • Routing, Gigamon on my day to day analysing alerts and troubleshooting on OT devices.
  • I have understanding of various industry standards like NIST 800-82, PCI-CPP (Payment Card Industry
  • Card Production and Provisioning) & PCI-DSS (Payment Card Industry Data Security Standard), NPCI
  • (National Payment Corporation of India), SAS (Security Accreditation Scheme) & ISO-27001.
  • I am using my technical engineering and process management skills on my day-to-day activity.
  • To Extract Configuration and outputs from all managed network devices for each site in scope.
  • Analyse routing information from ICS/OT site to ascertain Enterprise-wide design.
  • Provide analysis of security policies from ACLs from configuration of network devices.
  • Gather information to define flows and system to be connected to intelligent tap solution, to
  • streamline application flows, such as deduplication, header, RBAC, Integrations.
  • Analyse discovered data to create baseline requirements for future-state site network designs.
  • Validate and implement ICS/OT cybersecurity monitoring solution at each site in scope.
  • Analyse routing information from ICS/OT site to ascertain Enterprise-wide design.
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Idemia

Assistant Manager Network Security

Jul 2022 – Dec 2022 · 5 mos · India · On-site

  • Here I was responsible for planning, designing, implementing and management of the complex modern
  • IT data centre infrastructure. In which I was handling all the Cisco FPR, ASA FW, Switch, & handling
  • audit of various compliances, Cyber Security Analyst, Information Security.
  • I was responsible for installing configuring implementation and administration of Cisco FPR, ASA FW,
  • Switch, Web gateway, Internal gateway SFTP/FTP server configuration,
  • I was also handling Incident Management, Change Management, Request Management, Problem
  • Management, technical troubleshooting, SLA management, facilities management, Security Management.
  • I was handling audit from Network perspective of various compliances like PCI-CPP (Payment Card Industry Card Production and Provisioning) & PCI-DSS (Payment Card Industry Data Security Standard), NPCI (National Payment Corporation of India), SAS (Security Accreditation Scheme) & ISO-27001.
  • I was taking care of resource allocation for internal & external projects, IT budgeting for financial years,
  • vendor coordination for existing & new projects, monitoring system management as per define SLA,
  • KPI/KRA management for teams, Solution design & support team.
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Bharti airtel

Engineer. (Data Centre IT-Infra Engineer Cisco Network & Security At Bharti Airtel)

Mar 2019 – Jun 2022 · 3 yrs 3 mos · New Delhi · Hybrid

  • Managing Maintaining and Securing Data Centre Network of Manesar, New Delhi and Chennai Locations.
  • comprising of products like:- Cisco Security Device ASA 5555-x, 5585-x, FTD 2140, Nexus 9K and 3K
  • Switches, ACI and APIC Controller. GSR Router, ASR Routers, Cyber Security Analyst, Information Security.
  • Working on many ongoing projects, like firewall migration, MPLS link shifting, ITNM tool integration
  • with network devices, attending meeting for new infrastructure projects. SD-WAN connectivity, NSO project. Cloud services.
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Teleperformance

Team Lead Networks & Security

Sep 2015 – Mar 2019 · 3 yrs 6 mos · Intelenet Global Services Pvt Ltd. (Okhla, New Delhi) · On-site

  • Maintaining a Network comprising of products like:-
  • Cisco Security Device ASA 5520, 5510, Router 7206, 3960, 2800, 1800 Switch 6509, 4506, 3560, 3760 and 3750 (PoE Series) basic configuration of Palo alto PA-220 PA-820, PA-840, Cyber Security Analyst, Information Security.
  • Implementation and configuration of backbone infrastructure for Data & Inbound Voice Process.
  • Configuration and management of Router and Switches (L2 and L3) with redundancy for availability of network without any downtime.
  • Installation, Configuration & management Cisco ASA firewall in failover mode.
  • Applying various security policies and implementation & Configuration of VPN’s between firewall and routers for secure encrypted communications and Remote Access VPN.
  • Implementing changes into Network after discussing with Change Advisory Board.
  • Configuration and Management of Gateway Redundancy, Gateway Load Balancing and Interface tracking using HSRP and VRRP.
  • Configuration and Management of Data and Voice VLAN & redundancy, and stacking of Switches.
  • Co-ordinate with service provider like Bharti, Aircel, Reliance, Tata, and Spectranet for different Internet, WAN and IPLC links
  • Configuring and troubleshooting EIGRP and OSPF routing protocol and other network related issues.
  • Implementing Security policy using Access-list and NAT/PAT, and applying ACE and configuring Object-Group in firewall.
  • Backup and restoring the Cisco IOS and Configuration.
  • Managing and Monitoring networks through Network Monitoring tools, Wireshark, MRTG, What’s UPGold and Syslog server.
  • Implementation and planning of new Projects coming in the facility.
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Netplace technologies pvt ltd.

Sr Network and Security Engineer

Feb 2015 – Aug 2015 · 6 mos · Serco BPO Pvt. Ltd. (Okhla, New Delhi) · On-site

  • Maintaining a Network comprising of products like:-
  • Cisco Security Device ASA 5520, 5510, Router 7206, 3960, 2800, 1800 Switch 6509, 4506, 3560, 3760 and 3750 (PoE Series)
  • Implementation and configuration of backbone infrastructure for Data & Inbound Voice Process.
  • Configuration and management of Router and Switches (L2 and L3) with redundancy for availability of network without any downtime.
  • Installation, Configuration & management Cisco ASA firewall in failover mode, Cyber Security Analyst, Information Security.
  • Applying various security policies and implementation & Configuration of VPN’s between firewall and routers for different sites to connect USA, Poland and UK client’s Server or secure encrypted communications and Remote Access VPN.
  • Implementing changes into Network after discussing with Change Advisory Board.
  • Configuration and Management of Gateway Redundancy, Gateway Load Balancing and Interface tracking using HSRP and VRRP.
  • Configuration and Management of Data and Voice VLAN & redundancy, and stacking of Switches.
  • Co-ordinate with service provider like Bharti, Aircel, Reliance, Tata, and Spectranet for different Internet, WAN and IPLC links
  • Configuring and troubleshooting EIGRP and OSPF routing protocol.
  • Implementing Security policy using Access-list and NAT/PAT, and applying ACE and configuring Object-Group in firewall.
  • Backup and restoring the Cisco IOS and Configuration.
  • Managing and Monitoring networks through Network Monitoring tools, Wireshark, MRTG, What’s UPGold and Syslog server.
  • Implementation and planning of new Projects coming in the facility.
  • Providing the solution to the client as per SLA with 99.98% up time.
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Netconnect pvt. ltd.

2 roles

Network & Security Engineer

Aug 2012 – Feb 2015 · 2 yrs 6 mos · On-site

  • Maintaining a Network comprising of products like:-
  • Cisco Security Device ASA 5520, 5510, PIX 515E, Router 7206, 3960, 2800, 1800 Switch 6509, 4506, 3760 and 3750 (PoE Series)
  • Implementation and configuration of backbone infrastructure for Data & Inbound Voice Process.
  • Configuration and management of Router and Switches (L2 and L3) with redundancy for availability of network without any downtime.
  • Installation, Configuration & management Cisco ASA and PIX firewall in failover mode.
  • Applying various security policies and implementation & Configuration of VPN’s between firewall and routers for different sites to connect USA, Poland and UK client’s Server or secure encrypted communications and Remote Access VPN.
  • Implementing changes into Network after discussing with Change Advisory Board.
  • Configuration and Management of Gateway Redundancy, Gateway Load Balancing and Interface tracking using HSRP and VRRP.
  • Configuration and Management of Data and Voice VLAN & redundancy, and stacking of Switches.
  • Co-ordinate with service provider like Bharti, Aircel, Reliance, Tata, and Spectranet for different Internet, WAN and IPLC links
  • Configuring and troubleshooting EIGRP and OSPF routing protocol.
  • Implementing Security policy using Access-list and NAT/PAT, and applying ACE and configuring Object-Group in firewall.
  • Backup and restoring the Cisco IOS and Configuration.
  • Managing and Monitoring networks through Network Monitoring tools, Wireshark, MRTG, What’s UPGold and Syslog server.
  • Implementation and planning of new Projects coming in the facility.
  • Providing the solution to the client as per SLA with 99.98% up time.
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Network & Security Engineer

Jul 2011 – Aug 2012 · 1 yr 1 mo · On-site

  • Monitoring of over 151 WAN Location.
  • Monitoring of various system performance parameters (CPU, Memory & Link Utilization)
  • Monitoring Alert log messages
  • Device Configuration & troubleshooting
  • Configuration of Routers , switch
  • Configuration of ASA , IPS
  • Configuration of VLAN , STP , VTP Ether Channel
  • Logging call with Service Provider, Coordination & Escalation
  • Device Access Control
  • Solving Incident as per agreed SLA
Network EngineeringCCNACybersecurityTroubleshootingNetwork SecurityCCNP-Security+1

Galaxy office automation pvt. ltd.

Technical Support Engineer

Mar 2010 – Jan 2011 · 10 mos · RESERVE BANK OF INDIA (Regional Office New Delhi) · On-site

  • Establishing LAN and WAN connection along with Internet & Intranet connection to the users.
  • Troubleshooting the user problems related to LAN, WAN, Printer, Installed s/w, Microsoft office.
  • Securing the Switch and Router. Securing the Network.
  • Installed and Configured Router, Switch and ASA Firewall in Indian NAVY Head Quarter New Delhi.
Network EngineeringCCNATroubleshootingCCNP-SecurityCisco ASANetwork Security

Education

Nagpur University

Bachelor of Engineering (B.E.) — Computer Engineering

Jan 2004 – Jan 2008

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