Ritwik Machchal - NETWORK ENGINEER

Summary

Results-driven Network Engineer with 3 years of experience configuring, securing, and optimizing enterprise network infrastructures. Skilled in wireless and wired networking, including VLANs, EIGRP, OSPF and industry standard network protocols. Proficient with Catalyst switches, Cisco UCS, Palo Alto firewalls, and VPN technologies. Experienced in network monitoring with SolarWinds, PRTG, and SNMP, ensuring high availability and performance. Committed to continuous learning with a strong client-focused and collaborative approach.

Overview

3

years of professional experience

1

Certification

Work History

NETWORK ENGINEER

UBIQUITI

GURUGRAM

11.2023 - 06.2025

Owned day-to-day operations and stability of enterprise customer networks, proactively monitoring and troubleshooting issues using PRTG and allied monitoring tools.
Designed, configured, and supported campus and data-center switching environments using Cisco Catalyst 9000, 3850, and 2960 series switches, implementing VLANs, Inter-VLAN routing, VTP, VRF, STP (PVST/RSTP), HSRP, and port channels.
Configured and maintained routing infrastructure with EIGRP, OSPF, and BGP, achieving optimal path selection, redundancy, and fault tolerance across enterprise networks.
Led configuration and troubleshooting of secure connectivity solutions including DMVPN, site-to-site IPsec, and remote access VPNs across Cisco ASA/Firepower, Palo Alto, and Sophos firewalls.
Enhanced network availability and minimized incident recurrence through proactive performance analysis with SolarWinds and PRTG, identifying bottlenecks and implementing corrective actions.
Collaborated with cloud and virtualization teams on Azure and VMware-based network integrations, supporting network expansion and hybrid infrastructure initiatives.
Developed and maintained network documentation, including detailed topology diagrams, configuration standards, and compliance checklists to facilitate audits, onboarding, and operational continuity.
Environment: Enterprise LAN/WAN, Campus & Data Center Switching, Firewalls, VPN, Hybrid Cloud (Azure, VMware)

NETWORK SUPPORT

TELEPERFORMANCE

GURUGRAM

05.2022 - 08.2023

Owned Level 1/2 enterprise network incidents, diagnosing and resolving issues with DHCP, VLANs, routing, DNS, VPN access, and end-to-end connectivity to maintain network reliability.
Supported enterprise authentication services using Cisco ISE and NPS, troubleshooting 802.1X authentication issues for RAS and wireless users in production environments.
Executed IOS upgrades and patching on Cisco routers, switches, and firewalls to enhance security compliance and reduce operational risk.
Collaborated with senior engineers to escalate complex incidents, facilitating root-cause analysis and development of permanent remediation plans.
Environment: Enterprise LAN, WAN, VPN Access, Wireless Networks, Authentication Services (Cisco ISE, NPS)

Education

(BCA) Bachelor of Computer Applications -

Indira Gandhi National Open University (IGNOU)

India

Skills

Networking Fundamentals: TCP/IP
VLANs
VLSM
ARP
DNS
DHCP
Routing & Switching: EIGRP
OSPF
BGP
STP
RSTP
MST
MLAG
EtherChannel
HSRP
VRRP
Access Control & Security: ACLs
8021X
Cisco ISE
NPS
IDS/IPS
Endpoint Protection
CrowdStrike
SEM
Firewalls & VPN: Cisco ASA/Firepower
Palo Alto (3000 series)

Sophos
UTM
IPsec
DMVPN
SSL VPN
AnyConnect
GlobalProtect
Duo MFA
GRE
Switching & Compute: Cisco Catalyst
Cisco UCS
Wireless & LAN: Wired LAN Infrastructure
WLAN
Inter-VLAN
Routing Monitoring & Operations: SolarWinds
PRTG
SNMP
Performance Monitoring
High Availability & DR: Redundancy Design
Failover Planning
Disaster Recovery
Routing protocols
VPN configuration
Network documentation
Firewall management

Certification

• CCNA (CSCO14135120)
• Preparing for (CCNP) Cisco Certified Network Professional

Projects

Streamlined IDS/IPS processing for the Ubiquiti Dream Machine lineup by identifying performance and detection issues using AF-Packet, NFQueue, Netmap, and PCAP-based traffic analysis; leveraged scripting and packet analysis workflows to isolate bugs and validate fixes. Designed and simulated enterprise-level network topologies using physical and logical devices to generate controlled traffic patterns, enabling data-driven tuning of the Ubiquiti Enterprise Campus Switch for performance and stability. Tuned and validated MLAG configurations for the Ubiquiti Enterprise Campus Switch lineup, improving redundancy and failover behaviour through iterative testing, configuration refinement, and automated validation of link and traffic behaviour. Used custom scripts and tooling to automate packet capture analysis, test execution, and validation to ensure consistent performance across deployments.

Core Skills

TCP/IP, VLANs, VLSM, ARP, DNS, DHCP, EIGRP, OSPF, BGP, STP, RSTP, MST, MLAG, EtherChannel, HSRP, VRRP, ACLs, 802.1X, Cisco ISE, NPS, IDS/IPS, Endpoint Protection (CrowdStrike, SEM), Cisco ASA/Firepower, Palo Alto (3000 series), Sophos, UTM, IPsec (Site-to-Site, Remote Access), DMVPN, SSL VPN (AnyConnect, GlobalProtect, Duo MFA), GRE, Cisco Catalyst (2960, 3850, 9000 Series), Cisco UCS, Wired LAN Infrastructure, WLAN, Inter-VLAN Routing, SolarWinds, PRTG, SNMP, Performance Monitoring, Redundancy Design, Failover Planning, Disaster Recovery

Timeline