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Tharun Iragavarapu

Tharun Iragavarapu

Security System Engineer

Hyderabad $33/hr Remote Full-time 0+ yrs exp 92 · Outstanding

About

Cybersecurity professional with hands-on experience in endpoint alert triage, security incident investigation, and infrastructure defense across MSSP environments. Production experience with Sophos Central, CrowdStrike EDR, FortiGate NGFW, and ZScaler; SC-200 certified with applied KQL knowledge and Microsoft Sentinel detection workflows. Practiced in kill chain attack techniques phishing, credential theft, lateral movement, malware execution, C2, and data exfiltration through MITRE ATT&CK based triage and offensive security lab work. Available for night shift and shift-rotation environments.

Skills & Expertise (38)

Microsoft Sentinel Intermediate
7.5/10
1
Years Exp
KQL Intermediate
7.0/10
1
Years Exp
PowerShell Intermediate
7.0/10
1
Years Exp
Alert Triage Intermediate
7.0/10
1
Years Exp
Threat Detection Intermediate
7.0/10
1
Years Exp
Crowdstrike EDR Intermediate
7.0/10
1
Years Exp
Active Directory Intermediate
7.0/10
1
Years Exp
Defender for cloud Intermediate
6.5/10
1
Years Exp
Python Intermediate
6.5/10
1
Years Exp
Group Policy Intermediate
6.5/10
1
Years Exp
Defender for Office 365 Intermediate
6.5/10
1
Years Exp
firewall policy management Intermediate
6.5/10
1
Years Exp
Splunk Intermediate
6.5/10
1
Years Exp
Sophos Central Intermediate
6.5/10
1
Years Exp
Microsoft Defender XDR Intermediate
6.5/10
1
Years Exp
Incident lifecycle management Intermediate
6.5/10
1
Years Exp
Microsoft Defender for Endpoint Intermediate
6.5/10
1
Years Exp
VPN Intermediate
6.0/10
1
Years Exp
ISO 9001 Intermediate
6.0/10
1
Years Exp
ISO 27001 Intermediate
6.0/10
1
Years Exp
bash scripting Intermediate
6.0/10
1
Years Exp
Wazuh Intermediate
6.0/10
1
Years Exp
RBAC Intermediate
6.0/10
1
Years Exp
Cisco Packet Tracer Intermediate
6.0/10
1
Years Exp
OSI Model Intermediate
6.0/10
1
Years Exp
DNS Intermediate
6.0/10
1
Years Exp
DHCP Intermediate
6.0/10
1
Years Exp
SonicWall Intermediate
6.0/10
1
Years Exp
VLAN Intermediate
6.0/10
1
Years Exp
PAT Intermediate
6.0/10
1
Years Exp
Defender for Identity Intermediate
6.0/10
1
Years Exp
Entra ID Intermediate
6.0/10
1
Years Exp
WIRESHARK Intermediate
6.0/10
1
Years Exp
Kill Chain Analysis Intermediate
6.0/10
1
Years Exp
OSINT Intermediate
6.0/10
1
Years Exp
MITRE ATT&CK Intermediate
6.0/10
1
Years Exp
Zscaler Intermediate
6.0/10
1
Years Exp
Cisco ASA Intermediate
6.0/10
1
Years Exp

Work Experience

Security System Engineer

Fencer Services Pvt. Ltd.

May 2026 - Present

Restored network stability at a 52-device client site within 5 hours of root cause identification after a 3-day investigation; correlated SonicWall AppFlow traffic with Windows Event Viewer logs to trace a Kerberos authentication retry loop generating 678+ connection attempts per hour that was exhausting switch CAM tables. Triaged endpoint security alerts in Sophos Central, reviewed detection name, process ancestry, and endpoint history to assess severity; confirmed benign alerts with documented justification and escalated confirmed threats through defined escalation paths. Detected a KMS Activator PUA on a client endpoint and completed full triage, remediation, rescan, and post-incident log verification within 3 hours; identified a concurrent domain admin session as an insider threat indicator and escalated for firewall log correlation. Detected and contained a brute force attack that had been active undetected for 7 days; identified the targeted service port from firewall logs and immediately contained it by remapping to a non-standard port, escalating with full incident context through the defined escalation path. Investigated a Microsoft Teams service disruption at a client site; traced root cause to Sophos Application Control misclassification and resolved via policy scope correction. Authored FortiGate configuration documentation across 2 client sites covering VPN tunnel setup, SD-WAN policies, network segmentation, and security policy architecture; conducted a FortiGate health audit identifying security gaps and misconfigurations for remediation and compliance review. Authored client-facing incident reports and investigation notes, detection timeline, containment, remediation, and post-incident recommendations structured for handover continuity and audit trail. Participated in ISO 9001 internal audit contributed to non-conformity documentation, corrective action tracking, and audit evidence preparation.

Technical System Engineer

Fencer Services Pvt. Ltd.

Nov 2025 - May 2026

Conducted daily manual log review and alert triage across multiple client environments, checked Windows Server security events, FortiGate NGFW traffic logs, and CrowdStrike console detections; made structured decisions to close benign alerts with documented justification, investigate anomalies further, or escalate through defined escalation paths. Deployed and administered CrowdStrike EDR across approximately 80 endpoints; managed USB and removable media access control policies to eliminate unauthorized data transfer risk. Administered FortiGate NGFW in production firmware upgrades, web filtering, application control, URL policies, and security log analysis; evaluated FortiEMS for endpoint visibility and compliance enforcement. Administered Active Directory and ManageEngine ADManager; enforced RBAC, least-privilege, and Segregation of Duties across all client environments; managed endpoint compliance via IBM BigFix and incident ticketing via ManageEngine Service Desk. Eliminated approximately 83 hours of manual effort by building a PowerShell script that silently removed 10 restricted applications enterprise-wide across 200+ endpoints under administrative privileges, reducing per-machine intervention from 25 minutes to zero. Observed ISO 27001 internal audit proceedings at client sites risk control assessments and non-conformity review process.

Cybersecurity Trainee – Offensive Security & Firewall Engineering

Zoom Technologies

Sep 2025 - Oct 2025

Practiced offensive techniques in a controlled lab: DDoS, XSS, brute force, ARP poisoning, network scanning, footprinting, and basic Metasploit exploitation; applied attacker perspective to SOC triage scenarios to identify behavioural patterns, lateral movement indicators, and common evasion techniques. Configured Cisco ASA and Stormshield firewalls: policy rules, NAT, ACLs, and VPN protocols (GRE, IPSec, SSL/TLS); studied SASE and UTM security architectures.

Cybersecurity Trainee – SOC & Network Security

Zoom Technologies

Aug 2025 - Sep 2025

Deployed Wazuh and Splunk SIEM in lab for log ingestion, event correlation, and alert monitoring; administered Active Directory and Domain Controller with Group Policy and DHCP/DNS configuration. Built LAN/WAN topologies in Cisco Packet Tracer; configured VLAN, DHCP, DNS, and NAT/PAT; used Wireshark for traffic capture and Nmap for network scanning and reconnaissance analysis.

Education

B.Tech in Electronics and Telecommunication Engineering - Guru Nanak Institute of Engineering and Technology

2021 - 2025 · Afghanistan

Certifications

Microsoft Certified: Security Operations Analyst Associate (SC-200)

Microsoft · 2026

CSA-US-V1 Certified SOC Analyst

US-Council · 2025

CSP-US-V3 Cyber Professional

US-Council · 2025

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Profile Score Breakdown

📷 Photo 10/10
📄 Resume 10/10
💼 Job Title 10/10
✍️ Bio 10/10
🛠️ Skills 20/20
🎓 Education 10/10
⏱️ Experience 7/15
💰 Rate 5/5
🏆 Certs 5/5
Verified 5/5
Total Score 92/100

Profile Overview

Member sinceJul 2026
Work ModeRemote
AvailabilityFull-time

Availability Details

Visa Status

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Relocation

Open to Relocation