EMMANUEL ROSE LEO, Lead System Engineer

EMMANUEL ROSE LEO

Lead System Engineer

Kaleyra

Location
Saudi Arabia - Buraidah
Education
Bachelor's degree, Electric And Communication Engineering
Experience
8 years, 5 Months

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Work Experience

Total years of experience :8 years, 5 Months

Lead System Engineer at Kaleyra
  • India - Bengaluru
  • My current job since September 2017

• Initially recruited into a System Administrator role then promoted to Senior Engineer (2020) and Lead System Engineer (2022).
• Supervise a high-performing team, with direct responsibility handling production infrastructure, network security and oversee all day-to-day network operations.
• Implemented the Prisma Access SASE as the network backbone, connecting corporate resources across on-premise, hybrid, and multi-cloud environments using IPSec VPNs. Deployed cloud-based Remote Access VPN with global gateways, configured user ID-based access control policies compliant with Zero Trust Network Access (ZTNA) architecture.
• Built redundant infrastructure in 16 data centers using sd wan technology with next generation firewalls (NGFWs) in physical, virtual and containerized form factors. This resulted in reduced network latency, stabilizing application performance and meeting SLAs with an improved security posture.
• Developed processes and structure for network operations, creating Standard Operating Procedures (SOP), configurations, and troubleshooting documents. Nagios monitoring, PagerDuty and Cortex Data Lake SIEM are configured for efficient incident response and forensic.
• Established global WiFi network with cloud controller for centralized management and authentication.

Server Administrator at Bhagawan Mahaveer Jain Hospitals
  • India - Bengaluru
  • May 2016 to September 2017

Employed as a Server Administrator to oversee both physical and virtual servers for internal applications and Active Directory. Demonstrated strong networking skills, leading to the additional responsibility of managing the hospital network.
• Deployed VMWare, XEN, KVM, Hyper-V virtualization and converted physical servers running dedicated applications to virtual machines. Resulted in effective utilization of hardware and high availability.
• Implemented Microsoft Active Directory, along with its associated services such as Group Policies, DHCP, DNS, Radius, LDAP and WDS, automated day to day infrastructure operations.
• Integrated the applications inside the network with LDAP, enabled centralized management of users and computers.

Server Engineer at Info services
  • India - Bengaluru
  • January 2016 to May 2016

Recruited to provide comprehensive AMC support for corporate customers in Bangalore. Specialized in installation, troubleshooting, and maintenance of IBM servers, Blade Centres, and RAID controllers.
• Led successful installation and troubleshooting of IBM servers and Blade Centres, ensuring reliable operations for corporate clients.
• Expert in diagnosing and resolving hardware issues in IBM PCs, servers, and tape drives, minimizing downtime and optimizing performance for clients.

Education

Bachelor's degree, Electric And Communication Engineering
  • at Anna University
  • April 2024

Electronics and communications Engineering from Annai Mathammal Sheela Engineering College, Namakkal, Tamilnadu.

Specialties & Skills

System Administration
Data Center
Cloud Computing
Firewalls
Network Security
SECURITY POLICIES
AMAZON WEB SERVICES
VIRTUAL PRIVATE NETWORKS (VPN)
AUTHENTICATIONS
SINGLE SIGN-ON (SSO)
Cloud Networkig
Web Application Firewall - WAF
Network Security
Next Generation Firewall - NGFW
Intrusion Detection Prevention System - IDS/IPS
Denial of Service protection - DoS, DDoS
Business Continuity Planning - BCP
Palo Alto Networks Firewall
Fortinet Firewall
Secure Access Service Edge (SASE)
Endpoint Security
Zero Trust Network Access
Encryption
Fault Tolerence
Disaster Recovery - DR
FIREWALL
INTRUSION PREVENTION SYSTEM (IPS)
OPERATIONS
MANAGEMENT
INFRASTRUCTURE
SECURITY INFORMATION AND EVENT MANAGEMENT (SIEM)
INCIDENT RESPONSE
NETWORK SECURITY
Windows
Routing & Switching
TCP/IP Networking
Incident Response - SIEM
Secure Web Gateway - SWG
High Availability - HA
Identity and Access Management (IAM)
Sigle Sign On - SSO
Mobile Device Management - MDM
DLP - Data Loss Prevention
Virtualization
Kubernetes
Cisco FirePower

Social Profiles

Personal Website
Personal Website

URL removed due to policy violation. Please contact support for further information.

Languages

Kannada
Beginner
Hindi
Beginner
Malayalam
Native Speaker
English
Native Speaker
Tamil
Expert

Memberships

ISC2 Candidate
  • Candidate
  • July 2023

Training and Certifications

Prisma Access SASE Security - Design and Operation (Certificate)
Date Attended:
March 2022
Firewall Essentials: Configuration and Management (EDU-210) (Certificate)
Date Attended:
July 2022
Palo Alto Networks Micro-Credential for Cloud NGFW Administrator (Certificate)
Date Attended:
October 2022
Palo Alto Networks Micro-Credential for Kubernetes Network Security Administrator (Certificate)
Date Attended:
October 2022
AWS Security - Specialty Course (Certificate)
Date Attended:
February 2024
AWS Advanced Networking Course (Certificate)
Date Attended:
January 2024
PagerDuty Incident Responder Certification (Certificate)
Date Attended:
August 2021
PaloAlto Certified Network Security Associate (Certificate)
Date Attended:
December 2022
Valid Until:
December 2024