Dharmendra Singh
Summary
A highly skilled and results-driven Network Manager with over 15 years of experience in designing, implementing, and optimizing secure and scalable enterprise network infrastructures. Possesses strong expertise in network security, administration, and troubleshooting, with a proven ability to manage cross-functional teams and maintain high network availability and performance. Experienced in delivering reliable, cost-effective, and secure infrastructure solutions aligned with business objectives while staying current with emerging technologies. Committed to strengthening organizational IT operations and supporting long-term growth through efficient and resilient network environments.
Overview
16
16
years of professional experience
1
1
Certification
Work History
Network Manager
BDO RISE Pvt. Ltd
04.2024 - Current
- Planned, designed, installed, and configured networks for new projects.
- Configuring & managing Firewalls (Cisco FTD, Fortinet, Paloalto & Sonicwall), Routers (Cisco), Switches (Cisco Nexus 9K, Catalyst, Aruba).
- Handling LAN, WAN & Security implementation & maintenance project.
- Managed network infrastructure and responded to alerts from monitoring systems to ensure optimal performance.
- Managed network operations and staff.
- Managing the Virtual network appliance installed in Azure & VMware.
- Cloud environments with services, PaloAlto, SD-WAN Firewall / IPS security, Azure Cloud NSG, LB / APP GW, VNET peering, Routing.
- Troubleshot network-related issues and upgraded configurations based on requirements and OEM recommendations.
- Mitigate vulnerability from servers & network based on VAPT reports.
Network Manager
Averda Waste Management Investment India Pvt Ltd.
New Delhi
04.2021 - 04.2024
- Works as Network Manager and manages the entire IT & network setup of Averda Global.
- Planned and managed network and security for on-premises data center and Azure Cloud infrastructure, overseeing hybrid connectivity between multiple data centers and cloud environments using Cisco DMVPN, Palo Alto, SD-WAN Firewall/IPS security, Azure Cloud NSG, LB/App GW, VNET peering, Cisco ISE for MB & Flex connect profiles, Forti SSL, and Global Protect.
- Managed complete network infrastructure, addressing alerts generated by SolarWinds monitoring system.
- Planned, designed, installed, and configured networks for new projects.
- Coordinated with team members and vendors to secure network maintenance resources for business-critical applications.
- Configuration, troubleshooting network-related issues, and upgrading the network as per the requirements and OEM recommendations.
- Migrated servers & Network appliance (FortiGate Firewall, WLC) to Azure.
- Managing the Cisco ISE and the virtual network appliance installed in Azure.
- Implemented and maintained backup and disaster recovery solutions using Veeam.
- Conducted server and network hardening to enhance security compliance.
- Configuring & managing Cisco Routers, Cisco Switches (Cisco Nexus 9K & Cisco Catalyst), Palo Alto (Virtual Box and Appliance), and FortiGate, FTD Firewalls.
- Performing Device and component-level testing to perform BCP/DR activity for all locations and capturing the required network and security devices logs.
- Reviewing Servers, network & security devices audit logs based on the requirements.
- Works on Linux servers for logging (Rancid Server) and troubleshooting.
- Facilitated weekly meetings with C-Level executives to address project challenges and updates.
- Organized daily team meetings to review project tasks and identify obstacles.
- Hands-on experience in building Network topologies using MS-VISIO.
IT Manager
Jumio India Pvt Ltd
Jaipur
11.2019 - 04.2021
- Works as IT/Network Manager and manages the entire IT & network setup of Jumio India and Jumio Colombia.
- Managing the complete network infrastructure and working on alerts generated by the SolarWinds monitoring system.
- Configuring & managing Cisco Routers (ISR4431), Cisco Switches (Cisco Nexus 9K & Cisco Catalyst), Palo Alto (VirtualBox and Appliance), and Cisco ASA & FTD.
- Managed over 20 physical and virtual servers running Linux and Windows operating systems.
- Implemented and maintained backup and disaster recovery solutions using Veeam.
- Troubleshot network-related issues and upgraded the network based on OEM recommendations.
- Performing Device and component-level testing, performing BCP/DR activity for all locations, and capturing the required network and security devices logs.
- Managing Datacenter, including Servers, Routers, Switches, Cisco ASA, Cisco FTD.
- Mitigating vulnerability from servers (Windows & Linux) & network based on VAPT reports.
- Reviewing network & security devices audit logs based on the requirements.
- Managed logging operations on Linux servers using Rancid Server.
- Collaborated with IT-Infra team to evaluate and implement new technologies in IT setup.
Senior Engineer
Hitachi Micro Clinic Pvt Ltd
Gurgaon
08.2019 - 10.2019
- Managed complete network infrastructure and responded to alerts generated by SolarWinds monitoring system.
- Configured and troubleshot network-related issues, upgrading network per requirements and OEM recommendations.
- Performing Device and component-level testing, performing BCP/DR activity for all locations, and capturing the required network and security devices logs.
- Oversaw daily operational reports to ensure smooth functioning of network and security.
- Analyzed network and security device audit logs to identify potential security risks.
- Remove the vulnerability from the network based on VAPT reports.
Senior Engineer
AGC Networks Ltd.
05.2018 - 08.2019
- Handled end-to-end implementation and Maintenance of large WAN and LAN projects (Data Centers).
- Planned, designed, installed, and configured networks for new projects.
- Configuring the WAN and LAN infrastructure, Cisco routers & switches, Cisco, Avaya, and HP/ Aruba switches.
- Firewall (security) configuration and installation (Cyberoam/ Sophos, Palo Alto Firewall & ASA/FTD firewalls).
- Handled LAN, WAN, and security implementation and maintenance projects, ensuring system reliability.
- Managed customer escalations by addressing inquiries and resolving issues to enhance client satisfaction.
- Prepare the LLD and HLD during project implementation.
Senior Network Engineer
NIIT Technologies Ltd.
Greater-Noida
02.2016 - 05.2018
- Designed, installed, and configured networks for new projects.
- Performed installation, configuration, technical support, and troubleshooting of routers and switches, while testing and maintaining network integrity.
- Upgraded Cisco routers, switches, Wi-Fi controllers, and ASA IOS to enhance network performance.
- Perform tracking and troubleshooting of network issues (LAN, WAN, Wi-Fi & Security).
- Handled first level escalation calls for network and network security issues, ensuring timely resolution.
- Coordinated with ISPs for data network services, ensuring prompt escalation and resolution of issues.
- Identification of down sites, Health check, Diagnostics doing daily basis.
- Maintained daily documentation of work activities to ensure proper record-keeping.
- Creating network documents on Visio.
Engineer
AGC Networks Ltd. (Third Party Role)
Gurgaon
09.2013 - 02.2016
- Executed end-to-end implementation and maintenance of large WAN and LAN projects in data centers including Hotel Hilton Jaipur, IOCL, PGCIL.
- Designed, installed, and configured networks for new projects.
- Configured and installed firewalls (Cyberoam, Sophos, Paloalto, ASA) to enhance network security.
- Troubleshot and resolved issues across LAN, WAN, and Wi-Fi networks, ensuring optimal device performance.
- Handling LAN, WAN, & Security implementation & maintenance projects in the North region.
- Worked on Cisco 1941 Router, HP switches (5120 and 5500), and Avaya IP Office (Voice) Server.
- Perform tracking and troubleshooting of network issues (LAN & WAN).
- Perform tracking and troubleshooting of the Avaya IP Office Server.
- Creating the Extension and giving the calling rights according to the user's requirements in AVAYA IP Office.
- Coordinate and work with support teams and vendors such as HP, Reliance Global, Airtel, etc.
Engineer
HCL Comnet Ltd.
Jaipur
07.2010 - 09.2013
- In the Jaipur area office (HCL). Handled end-to-end implementation and Maintenance of large WAN projects of corporate clients like Punjab National Bank, Union Bank of India, ICICI, National Insurance, UIIC, M&M Finance Ltd, IFFCO, HPCL, LIC, L&T, Indian Bank, IndusInd Bank, etc.
- Working with network engineer team members and other technology groups to implement and support a variety of technical projects.
- Performed installation, configuration & troubleshooting of networks.
- Performed installation, configuration, troubleshooting, and upgrade of routers and switches.
- Upgrade Cisco Routers IOS using TFTP.
- Upgrade Cisco Routers and Switches IOS using TFTP.
- Coordinated with field engineers for commissioning and maintenance of leased line and ISDN services.
- Monitored and implemented the customer's network infrastructure.
- Identifying WAN and LAN-related problems.
- Tracked and troubleshot network issues using FREEping and WAN monitoring tools.
- Tracking and troubleshooting of the network using monitoring tools like CA Spectrum, Whatsup Gold.
- Coordinate and work with support teams and vendors such as Cisco, Bharti, Tikona, BSNL, etc.
- Assisted in implementation of Conventional, MLLN, ISDN, VSAT, and RF technologies to enhance network capabilities.
Education
MBA - Project Management
SMU
B.A -
Rajasthan University
12th -
CBSE Board
10th -
CBSE Board
Skills
- Microsoft Azure
- Project Management
- Virtualization
- Firewall Management
- Cloud Networking
- SD WAN
- Network Monitoring and Analysis
- Routing and Switching
- Network Troubleshooting
- Change Management
- Team Leadership
- IPSEC VPN
- NGFW Firewalls
- Network Load-Balancing
- Network Performance Optimization
- Windows Server Administration
- Linux System Administration
- Network Administration
- Wireless networking
- Server Virtualization
- Incident management
- Server administration
- VPN implementation
- Load balancing
- Patch management
- ITIL framework
- Network Analytics
- Team collaboration
- Network design
- DMVPN
- SSL VPN
- VMWare
- Network Diagramming
- SD-WAN
Certification
- CCNP-S (Cisco Certified Network Professional-Security)
- CCNA-S (Cisco Certified Network Associate- Security)
- CCNSP Certified (Cyberoam Certified Network & Security Professional)
- CCNP (R&S) Certified
- CCNA (R&S) Certified
- JNCIA Certified (Juniper)
- ACE 8.1 Certified (Palo Alto)
- JCHNP-P (Diploma in Hardware and Networking from Jetking -Noida)
Languages
- English, Read/Write/Speak
- Hindi, Read/Write/Speak
Timeline
Network Manager
BDO RISE Pvt. Ltd
04.2024 - Current
Network Manager
Averda Waste Management Investment India Pvt Ltd.
04.2021 - 04.2024
IT Manager
Jumio India Pvt Ltd
11.2019 - 04.2021
Senior Engineer
Hitachi Micro Clinic Pvt Ltd
08.2019 - 10.2019
Senior Engineer
AGC Networks Ltd.
05.2018 - 08.2019
Senior Network Engineer
NIIT Technologies Ltd.
02.2016 - 05.2018
Engineer
AGC Networks Ltd. (Third Party Role)
09.2013 - 02.2016
Engineer
HCL Comnet Ltd.
07.2010 - 09.2013
MBA - Project Management
SMU
B.A -
Rajasthan University
12th -
CBSE Board
10th -
CBSE Board