SitaramaTeja Pentakota
| Lead EUC Administrator | Security Analyst |
Summary
Dynamic Lead Systems Administrator with expertise in IBM QRadar and a strong background in the medical device, PR, and IT sectors. Proficient in technologies such as Networking, ADDS , DHCP , and Cloud environments, with strong skills in SaaS , Vendor Management, and O-365 Administration . Pursuing a Master's in Cybersecurity from Reva University, following a Bachelor of Technology, demonstrating commitment to continuous professional development. Results-driven leader with a proven track record of building high-performance teams and adept at managing multiple priorities while maintaining a positive outlook and readiness to embrace additional responsibilities to achieve team objectives.
Overview
9
9
years of professional experience
1
1
Certification
Work History
End User Operations Engineer (Infra / Lead DSB)
WiseTech Global India Pvt LTD
10.2020 - Current
- Led a 6-member End User Computing team, overseeing daily IT operations, workload distribution, and performance tracking to ensure timely service delivery.
- Troubleshoot problems reported by remote users.
- Managed incident, request, and change management processes aligned with ITIL standards, ensuring SLA compliance, and user satisfaction.
- Coordinated with the network, server, and security teams for issue resolution and cross-functional IT initiatives.
- Conducted regular team meetings, performance reviews, and training sessions to maintain a high level of technical competency.
- Oversaw software deployment, patch management, and asset tracking using tools like SCCM and Intune.
- Prepared periodic reports and dashboards summarizing team performance, SLA metrics, and user feedback for management review.
- Ensured that IT policies, security standards, and compliance requirements were consistently followed by the team.
- Involved in deploying IBM QRadar in various on-premises and cloud-based setups.
- Managing the print server along with local data servers.
- Configured QRadar components such as Console, Event Processor, and Flow Processor to ensure optimized performance and reliability.
- Responded to and resolved L1/L2 incidents, following ITIL processes for escalation, root cause analysis, and documentation in the ticketing system.
- Work with Information Technology teams, and update Security Standards for all technologies. (Databases, Operating Systems, and Network devices).
- Acted as a key escalation point for incident response, coordinating with L2, L3 teams, and vendors to restore services and minimize downtime.
- Design and implement IT-related operations for the India branch.
- Primary responsibilities include, but are not limited to, the implementation and troubleshooting of all LAN/WAN solutions.
- Maintaining the MS Azure tenant, Azure AD, and MFA.
- Involved in NOC Center operations and providing assistance.
- Led incident management, root cause analysis (RCA), and problem management processes under the ITIL framework, improving mean time to resolution (MTTR), and reducing repeat incidents.
- Created and maintained detailed SOPs, incident runbook, and escalation matrices to streamline NOC workflows, and improve response consistency.
- Respond, triage, and escalate as needed. Alerts include logs from firewalls, IDS.
- IT asset procurement and vendor management.
- Meraki Switches and Access Point Administration.
- Supported and maintained Palo Alto firewalls, including policy configuration, VPN setup, and traffic monitoring for secure network access.
- Collaborated with cross-functional teams to resolve infrastructure and network-related issues, minimizing downtime, and improving service availability.
- O365 Administration and MS Teams Management.
- Managing and Maintaining a DNS Server, DHCP Server.
- Administered and troubleshot virtualized environments using VMware vSphere/ESXi, including VM provisioning, snapshots, and resource optimization.
- Utilized SCOM (System Center Operations Manager) and SolarWinds for proactive infrastructure monitoring, alert management, and performance tuning.
- Generated daily and weekly NOC health reports, highlighting incident trends, system performance, and key metrics for management review.
- Participated in change management and patch deployment activities to ensure security compliance and system stability.
- Administered Proofpoint Email Security solutions, effectively identifying and mitigating phishing attacks and email-based threats.
- Perform investigation and triage of events, and escalate as appropriate.
- Developed and tuned custom correlation rules to detect specific threats and anomalies relevant to the organization.
- Customized log parsing rules and log sources to ensure accurate data ingestion and analysis.
- Managed and triaged security offenses, including investigation, escalation, and closure.
- Monitoring QRadar alerts and correlating the incidents.
- Log correlation and anomaly detection using industry-leading SIEM tools (IBM QRadar).
- Created and maintained custom dashboards and reports to provide insights into security events and trends.
- Incident response, investigating SIEM alerts, and involving SOC operations.
- Familiar with security standards related to IT controls around ISO 27001, NIST 800-53, and GDPR.
- Event correlation and incident response tools to identify risks and concerns.
- Troubleshooting MFA-related issues.
- Performing malware analysis and documenting.
- DUO MFA support and administration.
- Contributed to infrastructure upgrades and automation projects, optimizing resource utilization, and reducing manual intervention in routine tasks.
- Trained junior engineers on standard operating procedures, contributing to a knowledgeable and skilled workforce.
Sr. System Administrator (Infrastructure)
Chesa Dentalcare Services PVT LTD
05.2019 - 09.2020
- Troubleshooting and identifying the problems in the operations of applications, and escalating them to the concerned team.
- Troubleshooting of desktops and laptops.
- Primary responsibilities include, but are not limited to, the implementation and troubleshooting of all LAN/WAN solutions.
- Managing and maintaining a DNS server, DHCP server.
- Configuring and executing backups.
- Handling User Account Lockout and Password Issues.
- Troubleshooting Windows 2013 and 2016 Domain Controllers in Active Directory.
- SAP Business One support and escalations to the service provider.
- Configure and troubleshoot TCP/IP settings and connectivity problems for client computers, and add them to the domain.
- Working on SCCM and patch management.
- Monitoring QRadar SIEM alerts and correlating the incidents.
- Created and maintained custom dashboards and reports to provide insights into security events and trends.
- Working with the SOC team and identifying the vulnerabilities.
- Used MITRE ATT&CK to correlate IOCs and TTPs.
- Experienced in designing custom Splunk dashboards and reports to visualize data and track key performance indicators.
- Experience in Splunk administration, including user roles, data models, and security configurations, to ensure data integrity.
- Managing the enterprise switches and routers, and monitoring the traffic and health.
- Proficient in RHEL performance tuning (memory, CPU, and disk optimization), troubleshooting system bottlenecks, and applying best practices for resource management.
- Extensive experience in automating infrastructure using Puppet, including the creation and management of Puppet modules and manifests.
- Managing and performing troubleshooting of Group Policy Objects (GPO).
- Assigned and revoked licenses to user accounts for services within Office 365.
- L1-level expertise in firewall maintenance.
System Administrator
Weber Shandwick PVT LTD
07.2017 - 05.2019
- Installing, configuring, and managing Windows 2012 servers, and knowledge in the configuration of DNS and DHCP services.
- Primary responsibilities include, but are not limited to, the implementation and troubleshooting of all LAN/WAN solutions.
- Handling User Account Lockout and Password Issues.
- Maintaining Egnyte shared folders, and delegations over the cloud-shared folders.
- Worked on SCCM and scheduling patches.
- Involved in the migration of the corporate Active Directory from the server.
- Involved in the migration of the file server to the Egnyte cloud server.
- Execute the first attempt to solve the user incidents.
- Escalates to the appropriate next level, or management, when thresholds are violated.
- Involved in the migration of the Exchange server to Office 365.
- Escalating user account issues with the global team.
- Maintaining IT inventory.
- Installation and configuration of network printers and scanners, and their basic level of troubleshooting.
- Maintaining A&V Devices.
- Managing and performing troubleshooting of Group Policy Objects (GPO).
- Extensively worked on Windows 2008/2012 Active Directory domain controllers.
- Installing, Managing, and Maintaining a DNS Server, DHCP Server.
- Experienced in configuring and executing backups.
- Proficient in handling escalated calls and providing level 1 technical support to end users.
- Experienced in working on TCP/IP protocols and maintaining wireless APs.
System Engineer
AMOR Systems
06.2016 - 07.2017
- Troubleshoot problems reported by remote users.
- Troubleshooting of desktops and laptops.
- Routine monitoring of the Internet link and leased line.
- Maintaining A&V Devices.
- Executed the upgrade from Windows XP to Windows 7 and Windows 10.
- Maintaining inventory details of desktops, peripherals, and spares.
- Configuration and Troubleshooting of MS Outlook 2010.
- ROLES AND RESPONSIBILITIES:
Education
Master of Science - Cyber security
04.2001 -
Pursuing Masters for working professionals
B-Tech - Electronics and Communication Engineering
01.2016
- B-Tech in the Stream of Electronics and Communication Engineering
- GPA: 62%
Diploma - Electronics and Communication Engineering
01.2012
- Diploma in the stream of Electronics and Communication Engineering
- GPA: 69%
No Degree - Middle School Education
04.2001 -
GPA: 79%
Skills
Computer & laptop hardware, Networking, Azure Active Directory, MS Authenticator, MCSE(server administration), SIEM (QRadar), Threat Hunting, Threat intelligence, Digital forensics, Nessus, SOAR Resilient, OWASP, NIST framework, Autopsy, O365 Administration, MFA, Azure administration, VAPT, GRC, Sentinel, IS Infra Administration, Palo Alto, Cisco Meraki, VM & Hyper V hosting & administration
Achievements
- IBM Mastery Award 2020 - 2022
- IBM Explorer Award 2020 - 2022
Certification
IBM Qradar Mastery Award
Timeline
End User Operations Engineer (Infra / Lead DSB) - WiseTech Global India Pvt LTD
10.2020 - Current
Sr. System Administrator (Infrastructure) - Chesa Dentalcare Services PVT LTD
05.2019 - 09.2020
System Administrator - Weber Shandwick PVT LTD
07.2017 - 05.2019
System Engineer - AMOR Systems
06.2016 - 07.2017
Reva University - Master of Science, Cyber security
04.2001 -
JMJ English Medium - No Degree, Middle School Education
04.2001 -
Simhadri group of institutions - B-Tech, Electronics and Communication Engineering
Sai Ganapathi polytechnic - Diploma, Electronics and Communication Engineering