Shivanshu Aggarwal
Merthyr Tydfil,U.K.
Summary
Cybersecurity analyst with 5+ years of experience across SOC operations, incident response, and threat hunting. Proven experience leading investigations, managing security incidents, and communicating findings clearly to clients and internal stakeholders. Strong background in threat analysis, security monitoring, and improving detection and response processes.
Overview
5
5
years of professional experience
1
1
year of post-secondary education
1
1
Certification
Work history
Tier 3 Analyst
Defense.com
Stevenage, Hertfordshire
2025.01 - 2026.07
- Led investigations into suspicious security activity, coordinating analysis, escalation, and response with relevant stakeholders to address security threats.
- Support incident containment, eradication, and recovery activity while maintaining clear case ownership and documentation.
- Participated in client meetings to update on investigations, clarify findings, and offer recommendations during active incidents to ensure informed decision-making.
- Contributed to improved investigation quality and response consistency, enhancing team effectiveness in managing security incidents.
Tier 2 Analyst
Defense.com
Stevenage, Hertfordshire
2023.01 - 2024.12
- Proactively hunted for advanced persistent threats by analyzing threat intelligence, indicators of compromise, and adversary tactics aligned with the MITRE ATT&CK framework.
- Enhanced SOC playbooks and automated response mechanisms, leading to improved incident handling times.
- Reported SIEM coverage gaps, failures, and anomalies to improve monitoring efficiency and reduce downtime.
Cyber Security Analyst
Morning Foods Ltd
Crewe
2021.09 - 2023.01
- Performed regular vulnerability assessments using Nessus and OpenVAS, delivering reports and remediation recommendations to reduce attack surface.
- Implemented cloud security best practices across Azure environments, securing virtual machines and network architecture.
- Collaborated with IT and development teams to enforce security policies and strengthen system hardening, reducing vulnerability to potential attacks.
- Delivered security awareness training on phishing risks, password hygiene, and safe online practices, enhancing overall organisational security posture.
Education
Master of Science - Cyber Security
University of Staffordshire
Stoke-on-Trent 2020.09 - 2021.09
Skills
SIEM: Splunk, ELK
EDR/XDR: Carbon Black, Bitdefender Gravity Zone, Microsoft Defender
Network and Perimeter Security: Snort, Firewalls, Wireshark
Vulnerability Management: Nessus, OpenVAS
Forensics: Volatility, Autopsy, EnCase, Scalpel
Cloud Security: Microsoft 365, AWS
Scripting: Bash, PowerShell
Certification
- Offsec Defense Analyst (OSDA) - Offensive Security
- Blue Team Level 1 (BTL1) — Security Blue Team
- Certified Ethical Hacker (CEH) — EC-Council
- CompTIA Network+ — CompTIA
Timeline
Tier 3 Analyst
Defense.com
2025.01 - 2026.07
Tier 2 Analyst
Defense.com
2023.01 - 2024.12
Cyber Security Analyst
Morning Foods Ltd
2021.09 - 2023.01
Master of Science - Cyber Security
University of Staffordshire
2020.09 - 2021.09