Rajesh Halvi
Senior Network Engineer
Bengaluru
Summary
Senior Network Engineer with over 15 years of experience in enterprise networking. Specializes in designing, deploying, and managing networks of all sizes. Skilled in Network design, network security, and overall network engineering. Recognized for leadership as a technical lead and SME within infrastructure teams. Worked at Koch Business Solutions, BT, Accenture, and Cegedim on configuring and deploying projects. Holds a Bachelor of Engineering in Telecommunications.
Overview
15
15
years of professional experience
4
4
years of post-secondary education
2
2
Certifications
Work History
Senior Network Engineer
Koch Business solutions Pvt Ltd
01.2022 - Current
- Part of global engineering team primarily responsible for LAN, Wireless, Data center and Authentication.
- Develop and maintain network design and configuration standards for LAN and WLAN across multiple Koch companies.
- Collaborate with stakeholders, architecture teams, product owners and various Koch companies to identify opportunities for process improvements within the existing infrastructure and redefine operational workflows.
- Create High-Level Designs (HLD) and Low-Level Designs (LLD) for engineering initiatives and critical delivery projects.
- Delivered end-to-end transformation of data center, campus, and hosting network infrastructures.
- Work in Agile following Scrum methodologies.
- Lead experimentation and proof-of-concept (POC) initiatives for new features and services aimed at enhancing the performance and reliability of the existing network infrastructure.
- Define strategic infrastructure roadmaps aligned with the company’s long-term vision and actively engage cross-functional infrastructure teams in achieving these goals.
- Work closely with the Cisco account team to design solutions for emerging network requirements, address existing challenges, and discuss potential product improvements.
- Deploy and manage Cisco Identity Services Engine (ISE) across various Koch companies, ensuring consistent security and policy management.
- Designed and implemented robust RADIUS and TACACS authentication policies for network device security, successfully deployed customized guest access portals for customers, and led multiple Cisco ISE version upgrades and patch rollouts to enhance system performance and security.
- Conduct regular bug scrubs of Cisco IOS, assess security vulnerabilities, and recommend IOS upgrades to maintain network security and stability.
- Deployed and managed Infoblox Grid both on-premises and within AWS environments to support scalable and reliable DNS, DHCP, and IPAM services.
- Act as a change reviewer and approver in accordance with ITIL processes, ensuring minimal disruption and effective risk management during infrastructure changes. Define standard approved change templates that would help the change implementors to follow the standards and implement the change successfully.
- Serve as an escalation engineer(Teir 4 support), assisting the operations team in resolving complex, long-standing issues and providing expert-level troubleshooting support.
Network Design Professional
BT e-serv India Pvt Ltd
01.2015 - 12.2021
- Technical designer for WAN, LAN transformation and in-life TD for remote sites and Data centre.
- Design High-Level Designs (HLDs) and Low-Level Designs (LLDs) for the transformation of remote sites, as well as for in-life change requests.
- Develop HLDs and LLDs for bespoke data center projects and ongoing infrastructure enhancements.
- Create detailed configuration templates and implementation plans for Cisco ACI-related data center changes.
- Design network architectures for small, medium, and campus-scale Greenfield and Brownfield sites, delivering comprehensive HLD and LLD documentation.
- Prepare configurations and implementation plans for both site transformation projects and in-life change initiatives.
- Generate configuration and deployment strategies for new (Greenfield) and existing (Brownfield) network sites.
- Provide Rough Order of Magnitude (ROM) estimates for budgeting purposes and compile Bill of Materials (BOM) to support project planning and procurement.
IT Operations Senior Analyst – Level E
Accenture services Private Limited
09.2013 - 12.2014
- Transformation of Legacy banking network into new transformed network.
- Contributed to a major network transformation program, migrating and decommissioning legacy network infrastructure.
- Engaged directly with clients to gather project requirements and define the scope of work.
- Reviewed design documents and presented them to the technical board for analysis, feedback, and approval.
- Developed comprehensive High-Level Designs (HLDs) and Low-Level Designs (LLDs) to support transformation initiatives.
- Planned and executed network changes with zero business or customer impact, ensuring operational continuity.
- Participated in monthly technical discussions with clients, providing updates and addressing technical queries.
- Delivered BAU (Business as Usual) network requests and operational changes in line with service level expectations.
Systems Engineer – T2
Cegedim Software India Private Limited
06.2010 - 08.2013
- Part of Global NOC team managing the global network.
- L2 support for NA and EMEA region network infrastructure.
- Troubleshoot problems with regards to LAN.
- Configuring, Managing and Maintaining of Bangalore IT network infrastructure.
- Manage & maintain LAN documentation, asset-information and quality information.
- Implement change control for commissioning, decommissioning, changes in network.
- Build and maintain Visio documentation database of network topology.
Education
Bachelor of Engineering - Telecommunication
Visvesvaraya Technological University
Bengaluru, KARNATAKA 07.2002 - 11.2006
Skills
Routing & switching
Routing Protocols - OSPF, EIGRP, BGP
WAN technologies - MPLS, IPSEC VPN, DMVPN
Cisco SD-WAN
Cisco Data centre - VDCs, VPCs, FEX
Data Center technologies - EVPN, MP-BGP
Cisco Wireless
Cisco ISE
Amazon AWS - VPC
Alkira Cloud Networking
Knowledge on Python and Ansible
Basic hands on experience on Palo alto firewalls
Knowledge on Cisco Catalyst center
Knowledge on Juniper Mist cloud managed dashboard
Network scaling
Wireless network design
Network capacity planning
Data center networking
Network automation tools
IP address management
Network Access control implementation
Software-defined networking
Data center architecture
Routing protocols expertise
Network architecture design
Switching technologies mastery
ITIL framework
Disaster recovery planning
Technical troubleshooting
Infrastructure planning
Networking and routing protocol expertise
Excellent presentation skills
Datacenter network implementations
Traffic engineering techniques
Cisco Meraki
Hands On With Network Devices
Cisco ISR 4k Series, ASR series, 3800, 3900, 8200, 8300, 8500 routers, Cisco 9000 series catalyst switches, Cisco 6500 series, Cisco 4500 series, Cisco 3650/3850, Cisco 2960X, Cisco Meraki Switches, Nexus 7K, Nexus 5K, Nexus 2K, Nexus 9300 series , Cisco WLC (2500,5504, 5520, 9800 series), Access points (2600, 2700,2800,3700, 9100 series), Cisco Meraki Access points, Riverbed, Silverpeak, Service Now, Solar Wind, BMCRemedy, Logic monitor, Splunk, Cisco Thousand eyes, ISE (TACACS, Radius & Dot1X configuration), Infoblox
Certification
CCNP Data center, 09/2024
Accomplishments
- Quickly acquired in-depth knowledge of Cisco ISE and established myself as a Subject Matter Expert (SME) in a short period of time.
- Managed a team and successfully delivered 350+ designs over a short period of time. Received recognition from design lead for exceptional performance.
Timeline
Senior Network Engineer
Koch Business solutions Pvt Ltd
01.2022 - Current
Network Design Professional
BT e-serv India Pvt Ltd
01.2015 - 12.2021
IT Operations Senior Analyst – Level E
Accenture services Private Limited
09.2013 - 12.2014
Systems Engineer – T2
Cegedim Software India Private Limited
06.2010 - 08.2013
Bachelor of Engineering - Telecommunication
Visvesvaraya Technological University
07.2002 - 11.2006