Hirenkumar Sihora
New York,NY
Summary
Cybersecurity Manager and Technical Operations leader with hands-on expertise in Splunk SIEM, SOC monitoring, threat hunting, incident response, and vulnerability management. Strengthen enterprise defenses by building detections and dashboards, automating response workflows, and improving network security (firewalls, VPN, packet analysis) and cloud security (AWS IAM, CloudTrail/CloudWatch logging, encryption, hardening). Known for leading teams, enforcing secure standards and playbooks, and delivering measurable risk reduction, faster response, and reliable operations.
Overview
7
7
years of professional experience
1
1
Certification
Work History
Cyber Threat Analyst & Prevention Specialist
Brookdale Pharma
New York, USA
05.2025 - Current
- Secured pharmacy IT systems (PrimeRx, Prime Delivery, Micro Merchant) through server hardening, malware defense, and HIPAA-compliant data protection, ensuring patient data integrity.
- Built Splunk dashboards mapped to MITRE ATT&CK and automated log analysis with Python, reducing incident response time by 25%.
- Designed secure cloud backup and access frameworks using AWS IAM and encryption to enhance system resilience and support compliance audits.
Lead Full Stack Developer
Blackbull Technology
Surat, India
01.2023 - 10.2023
- Lead full-stack delivery and manage the engineering team through planning, execution, and client coordination from strategy to production.
Provide IT and engineering leadership by setting architecture and standards for UI, APIs, databases, and deployments to ensure security, performance, reliability, and scale.
Stay hands-on by translating requirements into solutions, guiding code reviews, removing blockers, and driving smooth releases with measurable business impact. Developed secure MERN applications with access controls, JWT authentication, and AES encryption, ensuring data confidentiality and user protection. - Applied cloud security with IAM roles and HTTPS while performing API vulnerability testing using Burp Suite to mitigate injection and exposure risks.
- Maintained detailed audit logs and access histories to support compliance reporting, incident investigations, and SOC monitoring goals.
Technical Support Engineer
CTDI
Warsaw, Poland
06.2020 - 11.2022
- Provide L2/L3 support engineering by diagnosing and resolving complex hardware, OS, network, and application issues using logs, diagnostics, and root-cause analysis.
- Own escalations end-to-end by coordinating with clients, vendors, and internal engineering teams to restore service quickly and implement permanent fixes.
- Improve reliability by trending recurring issues, documenting solutions, and driving process improvements that reduce repeat incidents and strengthen SLA performance.
Technical Support Assistant
Sitel Polska
Warsaw, Poland
03.2020 - 09.2020
- Diagnosed and resolved hardware, OS, and application issues using structured troubleshooting, remote tools, and ticketing workflows.
- Handled escalations by coordinating with internal teams, tracking incidents end-to-end, and restoring service with clear user communication.
- Documented fixes and contributed knowledge articles while analyzing recurring issues to reduce repeat incidents and improve operational stability.
Data Security and E-Commerce Operations Supervisor
Reno Sp.Z.O.O.
Warsaw, Poland
03.2019 - 05.2020
- Led data security and e-commerce operations by overseeing daily order and payment workflows, enforcing access controls, and ensuring secure customer data handling.
- Managed issue resolution and risk prevention by coordinating with IT, vendors, and internal teams to investigate incidents, limit fraud exposure, and maintain service reliability.
- Drove operational improvements through KPI reporting, SOPs, and team leadership, reducing processing errors and strengthening compliance across e-commerce operations.
Education
Master of Science - Cybersecurity, Computer Forensics and Counterterrorism
Sacred Heart University
CT, USA06.2025
Bachelor of Engineering - Information Technology And Business Management
WSGE University
Warsaw, Poland10.2021
Skills
- Tools: Splunk, Wireshark, Nessus, Nmap, Metasploit, Burp Suite, Autopsy, FTK Imager, tcpdump, Zeek (Bro), Snort/Suricata, Microsoft Sentinel, IBM QRadar, Qualys, OpenVAS (Greenbone), OWASP ZAP, Kali Linux, Sysinternals Suite, Volatility, VirusTotal, CyberChef, Shodan, AWS
- SOC/SecOps: SOC Monitoring, SIEM & Log Analysis, Threat Hunting, Incident Response, Security Operations
- Vulnerability & AppSec: Vulnerability Management, Application Security, Ethical Hacking, Secure SDLC
- Cloud Security: AWS IAM, Cloud Logging, Data Encryption, Basic Cloud Hardening
- Network Security: Packet Analysis, Network Protocols, Secure Protocols, Firewalls, VPNs, PKI
- Threat Intelligence
- GRC/Compliance: Risk Assessment & Risk Management, Security Policies, Cybersecurity Frameworks, Regulatory Compliance (GDPR/HIPAA), IT Compliance
- Forensics: Digital Forensics, Evidence Handling, Forensics Techniques
- Programming/Data: Python, PowerShell, SQL, JavaScript, Data Analysis
- Leadership: Team Leadership, Project Management, Process Improvement, Project Lifecycle Management
- Soft Skills: Communication, Critical Thinking, Teamwork, Adaptability
Certification
- SIEM (Splunk) and Log Analysis
- Diploma in Computer Applications
- CompTIA Security+
- AWS Certified Cloud Practitioner (in progress)
Projects
Capstone Project – ShadowLogs: Built an advanced Windows security logging system that captured user/system activity and DNS queries, securely compressed and encrypted/decrypted artifacts, and uploaded them to AWS S3 with SHA-256 integrity controls, validated through functional, performance, and security testing for reliable, efficient operation.
Thesis – Database Security Management in Payment Systems: Researched and presented database security controls for payment environments, emphasizing least-privilege access, encryption and key management, audit logging, and compliance-driven risk reduction to protect sensitive transaction data and prevent fraud.
Accomplishments
European Union Scholar program
Timeline
Cyber Threat Analyst & Prevention Specialist
Brookdale Pharma
05.2025 - Current
Lead Full Stack Developer
Blackbull Technology
01.2023 - 10.2023
Technical Support Engineer
CTDI
06.2020 - 11.2022
Technical Support Assistant
Sitel Polska
03.2020 - 09.2020
Data Security and E-Commerce Operations Supervisor
Reno Sp.Z.O.O.
03.2019 - 05.2020
Master of Science - Cybersecurity, Computer Forensics and Counterterrorism
Sacred Heart University
Bachelor of Engineering - Information Technology And Business Management
WSGE University