Summary
Overview
Work History
Education
Skills
Accomplishments
Certification
Languages
Timeline
Generic

Ajitsingh Rawat

Gurugram

Summary

To serve a progressive organization, that offers me growth opportunities, recognition & rewards for shouldering responsibilities.

Knowledgeable [Desired Position] with solid background in maintaining and enhancing system reliability. Demonstrated success in implementing automated solutions to streamline processes and improve system performance. Proven ability to troubleshoot complex issues and optimize infrastructure through proactive monitoring and collaboration.

Overview

14
14
years of professional experience
1
1
Certification

Work History

Network SRE Lead Engineer

Synopsys
04.2022 - Current
  • End-to-End ETL Process (Python & JAMS): Architected a robust ETL process using Python jobs and JAMS to extract network inventory from SolarWinds (OrionSDK) and ServiceNow Table APIs. Successfully synchronized a "single source of truth" for 10,000+ nodes by staging all data in a SQL Staging DB for validation and sanity checks.
  • ServiceNow Custom Table Architecture: Developed bespoke ServiceNow architecture to house network-specific data, creating custom tables for SolarWinds Nodes and Interfaces. Leveraged Form Builder, List Layouts, and Reference Fields to establish complex relational data models between different Configuration Items (CIs).
  • Import Sets & Transform Maps: Engineered high-integrity data synchronization by utilizing JDBC connections, Import Sets, and Transform Maps. Automated the movement of validated data from the SQL Staging DB into ServiceNow, ensuring seamless updates and data consistency across platforms.
  • SolarWinds NCM Jobs & Python Automation: Automated multi-vendor device configurations by developing Python jobs that trigger SolarWinds NCM templates. This effectively eliminated manual CLI entry errors and reduced global configuration deployment time by [X]%.
  • SolarWinds Sonar & Discovery: Streamlined asset discovery by implementing SolarWinds Sonar automation, ensuring 100% visibility of new network assets within the monitoring ecosystem and preventing "dark" (unmanaged) devices.
  • Audit Testing & Data Visualization (Grafana): Developed custom Audit Tests in Python to proactively detect CI defects (e.g., missing serial numbers or stale records). Exported audit results to the SQL Staging DB and built Grafana dashboards to provide real-time visualization of data quality and defect trends for leadership.
  • CMDB & Device Lifecycle Management: Managed the full Lifecycle Management of Configuration Items (CIs) from procurement to decommissioning. Scripted ServiceNow Business Rules to trigger automated status updates, ensuring the CMDB remains accurate and compliant with ITIL standards.
  • ServiceNow Platform Governance: Configured Application Menus, Modules, and Related Lists to provide a structured and user-friendly interface for technical teams. Managed all production movements using Update Sets across Dev, Test, and Prod environments to ensure zero-downtime deployments.

Lead Engineer

Wipro
02.2022 - 04.2022
  • CMDB & Device Lifecycle Management: Assisted the team in managing the full End-to-End Lifecycle of Configuration Items (CIs), from procurement to decommissioning. Contributed to scripting ServiceNow Business Rules for automated status updates, ensuring the CMDB remains audit-ready and strictly compliant with ITIL standards.

Security Design and Implementation Specialist

BRITISH TELECOM
10.2019 - 02.2022
  • Infoblox & CMDB Automation: Assisted the team in the end-to-end integration of Infoblox with ServiceNow. Developed a custom Infoblox CMDB table and engineered an ETL pipeline to populate data, including the complex flattening of Extensible Attributes into specific CMDB fields.
  • Data Integrity & Audit Framework: Scripted custom Python Audit Tests to detect data defects (e.g., IP conflicts, missing attributes). Automated the ITSM workflow by triggering ServiceNow Incident creation and auto-assigning tickets to respective owners for remediation, ensuring a 100% audit-ready CMDB.
  • ServiceNow Custom Portals: Designed and implemented Custom Catalog Forms that allow users to input data which automatically triggers Infoblox updates, reducing manual provisioning time.
  • End-to-End ETL Process (Python & JAMS): Architected a robust ETL pipeline using Python and JAMS to extract network inventory from SolarWinds (OrionSDK) and ServiceNow Table APIs. Successfully synchronized a "single source of truth" for 10,000+ nodes via a SQL Staging DB.
  • Network Security & Firewall Engineering: Lead the design and implementation of HLD/LLD and Network Architecture Diagrams. Expertly configured Checkpoint and Palo Alto Firewalls, including Management Server upgrades, NAT, VPN, Threat Prevention, and DDoS protection profiles.
  • Azure Cloud Networking: Designed and deployed Azure Networking components, including VNETs, Load Balancers, and Azure Firewalls. Implemented SD-WAN for Hybrid Cloud using ExpressRoute and integrated Azure Sentinel via Syslog servers for security monitoring.
  • Python Automation & Tool Development: Developed high-impact automation tools using Netmiko, Paramiko, and REST API (Netconf/Restconf). Leveraged Multithreading in Python to push bulk configurations to Cisco IOS XE, Palo Alto, and Fortinet devices in a single click, significantly reducing manual effort.
  • Configuration Management & Automated Remediation: Managed the configuration of Cisco switches based on their specific Network Roles. Employed ServiceNow custom tables to store and compare intended vs. existing configurations for ACL, triggering an automated workflow with a human-in-the-loop for approval before executing the ETL process to remediate configuration defects.

Senior Network Consultant

CAPGEMINI
09.2016 - 10.2019
  • Project Tittle: Metlife
  • Network and Security: Network Architecture Design and implementation.
  • Designing HLD, LLD, Network Architecture Diagram for Customer sites
  • Implementing Routers and Routing protocols (BGP, OSPF), Switches and Switching Protocols (HSRP, Port Channel, STP, etc), Firewalls (Checkpoint, Palo Alto), VPN
  • Designing and Implementing Routers, Switches, Firewall Checkpoint, Palo Alto and Switches For Data Centers.
  • Checking Firewall Logs in Palo Alto Firewall.
  • Configuring Security Policy, NAT policy, URL Filtering rule, File Blocking, URL Blocking.
  • Design, Implementation and Troubleshooting on Routing protocols (BGP/OSPF) and Routers.
  • Design and Implementation of Brand new switches with switching protocols (HSRP, VTP, VLAN, Port Channel, etc)
  • Updating DNS DHCP records in infoblox.
  • Load Balancing the Application/URL on Citrix NetScalar, Azure Load balancer.
  • Global Load Balancing URL using Citrix Netscalar GLBP and F5 GTM, Azure Load Balancer.
  • Joining Severity Network Incident Management calls to troubleshoot Priority 1 and Priority 2 issues.
  • Troubleshooting MPLS related issues.
  • Azure: Design and Implementation of Azure Networking, load balancers
  • Scripting and Automation using Python and Ansible: Creating Tools Using combination of Python and Ansible to automate lengthy, manual processes, using Netmiko, Paramiko, RestAPI, Netconf, Resconf, Tkinter, xlswriter, xlrd, paramiko, pyautogui docx packages.
  • Created tools using Python and REST API - yang model, restconf and Netconf in Cisco IOS XE to insert basic configuration on several Cisco IOS XE switches in a single click. Perform checks on ACL changes to avoid risky deletion of objects. Using Multithreading in Python.
  • Git for Version Control
  • Creating Weekly and Monthly Status report.
  • Joining Call with Client to present the weekly and monthly report.
  • Technologies
  • Azure Cloud
  • Python, Ansible, Git
  • Checkpoint
  • Cisco Routers (BGP, OSPF, EIGRP)
  • Cisco Switches and Switching Protocols
  • Palo Alto
  • Threat Protection
  • Citrix Netscalar
  • F5 Load balancer
  • Infoblox DNS, DHCP

Network Data & Security Engineer

Tata Consultancy Services
03.2012 - 09.2016
  • Complete WAN/LAN Designing and Implementation of New Office Sites, Using WAN technologies BGP, OSPF, EIGRP.
  • NAT in Firewall, DMZ Zone Creation, VPN Tunnel Creation, Firewall Health Monitoring, Logs Checking, Allow/Deny access rules, Implement New Firewall, Upgrading Firewall.
  • Upgrading Palo Alto Firewall and Checkpoint Firewall.
  • Load Balancing the Application/URL on Radware Alteon.
  • Configuring Hot Standby on Core Switches.
  • Configuring Port Channel/Ether Channel, VLAN, VTP.
  • Performing Management of Firewalls using Checkpoint Firewalls and Maintenance Centre (Provider-1).
  • Troubleshooting issues via Palo Alto Panorama.
  • Implementing and Maintaining Routing Protocols like OSPF, BGP.
  • Deploying Security Policies in Checkpoint and responsible for port issues and VPN tunnel issues.
  • SIP Activities – Firewall Refresh/Failovers/Clustering/OS Upgrade, IOS upgrades in Switches and Routers, Patch Compliances in Firewalls.
  • Refreshing the existing LAN Environment (EOL/EOS Devices) with latest Network Devices.
  • Wireless Integration and troubleshoot.
  • Identify, troubleshoot and report on network performance issues.
  • Perform the tasks of maintaining system and network availability and monitoring of services.
  • Troubleshooting Riverbed issues.
  • Technologies
  • Checkpoint
  • Cisco
  • F5 Load balancer
  • Cisco routers, Switches, Wireless
  • Interacting with ISP
  • Checkpoint
  • Cisco
  • F5 Load balancer
  • Cisco routers Switches, Wireless

Education

Bachelors - Engineering, Computer Science

VCET
Mumbai

H.S.C - Maths, Physics & Chemistry

Elphinstone College

S.S.C - Maths, Physics & Chemistry

St. Francis High School

Skills

  • Scripting: Python, Git, Solarwinds OrionSDK
  • CMDB: ServiceNOW CMDB
  • ETL: JAMS ETL
  • DB: SQL DB
  • Routing Cisco (BGP, OSPF, EIGRP)
  • Switching Cisco (HSRP,VLAN,VTP,PortChannel,etc)
  • Firewall Checkpoint (CCSA, CCSE), Palo Alto
  • Load Balancer Citrix Netscalar, F5, Radware Alteon
  • DNS / DHCP Infoblox

Accomplishments

Network Automation & ServiceNow Engineering

  • ETL & Data Synchronisation: Architected an end-to-end Python & JAMS ETL pipeline to sync 10,000+ nodes from SolarWinds and ServiceNow into a SQL Staging DB, ensuring a single source of truth.
  • Custom ServiceNow Development: Built bespoke CMDB architecture including custom tables for Nodes and Interfaces, utilizing Import Sets, Transform Maps, and JDBC for high-integrity data flow. Created Business Rules for data integrity in Servicenow CI Class and Client UI Scripts for preventing "dirty data" from being submitted by validating inputs.
  • Automated Configuration Management: Developed Python-driven NCM automation and Human-in-the-Loop workflows to compare intended vs. existing configurations and remediate defects on Cisco switches.
  • Proactive Audit & Visualization: Created Python Audit Tests to detect CI defects, visualizing real-time data health via Grafana dashboards for leadership reporting.
  • Infrastructure Discovery: Automated asset onboarding using SolarWinds Sonar, eliminating "dark devices" and maintaining 100% monitoring visibility.

Global Network & Security Projects

  • Firewall & Security Operations: Executed 10+ global firewall refreshes (APAC, Europe, LATAM) and spearheaded a DC Firewall Refresh, upgrading Checkpoint Management Servers from R75.40 SPLAT to R77.30 GAIA.
  • Enterprise LAN Re-Design: Led full-scale LAN refreshes and re-designs for major sites in Sri Lanka, Taiwan (10+ switches), and Bucharest.
  • Cloud & Hybrid Connectivity: Designed Azure Networking (VNET, Load Balancers) and implemented SD-WAN/ExpressRoute for secure hybrid cloud integration.
  • VPN & ISP Migrations: Managed complex ISP migrations in Johannesburg and established IPSEC VPN tunnels for global client connectivity.
  • Wireless & Load Balancing: Deployed 14+ LWAPs in Manila and 16 WAPs in Taiwan; performed critical OS upgrades for Radware Load-balancers and Riverbed WAN optimizers.
  • Infrastructure Resiliency: Configured Switch Stacking and Port Channeling (Langenbold) and conducted successful MPLS/Internet failover testing to ensure business continuity.

Certification

  • Cisco Certified Network Professional Routing and Switching (CCNA, CCNP)
  • Checkpoint CCSA and CCSE (Expert)
  • Azure Certified AZ-900

Languages

English
Advanced (C1)
Hindi
Advanced (C1)

Timeline

Network SRE Lead Engineer

Synopsys
04.2022 - Current

Lead Engineer

Wipro
02.2022 - 04.2022

Security Design and Implementation Specialist

BRITISH TELECOM
10.2019 - 02.2022

Senior Network Consultant

CAPGEMINI
09.2016 - 10.2019

Network Data & Security Engineer

Tata Consultancy Services
03.2012 - 09.2016

H.S.C - Maths, Physics & Chemistry

Elphinstone College

S.S.C - Maths, Physics & Chemistry

St. Francis High School

Bachelors - Engineering, Computer Science

VCET
Ajitsingh Rawat