I'm Dmitry Kolyvagin, a cybersecurity engineer who thrives on solving tough challenges. With a passion for both red and blue teaming, I specialize in threat detection, vulnerability assessment, and building secure system architectures.
CYBERSECURITY ENGINEER
Expert in threat analysis, security architecture, and risk assessment
M.S.
Cybersecurity
5+
Years of Experience
Blue+Red
Team Expertise
root@security:~$
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ABOUT ME
0
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Hosts Hardened
0
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Security Agents Deployed
0
+
Security Policies Engineered
0
+
API Integrations Built
Security Architecture
- System Hardening
- Vulnerability Management
- Security Tooling & Automation
- Infrastructure as Code (IaC) Security
Cloud Security
- IAM Policies and Roles
- Threat Monitoring Controls
- CI/CD Pipeline Security
- CSPM Implementation
Security Operations
- SIEM Management
- SOAR Integration
- Incident Response
- Threat Hunting
Offensive Security
- Active Directory
- Network & Permiter
- Web Applications
- APIs
Certifications
GCIH
CEH Master
Linux+
Security+
EXPERIENCE
Cybersecurity Engineer
IEX Group Sep 2024 - Present
Led system hardening initiatives for Windows and Linux environments
Built a Cloud Security Program by deploying CSPM tool to enforce guardrails and reduce risk.
Developed incident response program with playbooks and workflows
Cybersecurity Analyst
IEX Group Jun 2022 - Sep 2024
Supported vulnerability management program and risk remediation
Conducted security testing, attack simulations, and threat hunting
Managed content filtering and DLP strategies for endpoint security
Data Center Engineer
IEX Group Sep 2020 - Jun 2022
Led infrastructure configuration and deployment across all IEX data centers
Managed power and cooling systems, tracking utilization with PDUs
Achieved 99.9% uptime across critical infrastructure through proactive maintenance and monitoring
Data Center Technical Analyst
Citi Apr 2020 - Oct 2020
Provided 24/7 on-site operations support for 10,000+ infrastructure equipment
Managed complete device lifecycle including installation, troubleshooting, decommissioning, and ticketing system documentation
System Services Representative
IBM Oct 2019 - Apr 2020
Provided on-site technical support and documented service records
Diagnosed and repaired hardware for laptops, PCs, and servers
Unit Supply Specialist
United States Army May 2013 - Oct 2015
Maintained automated tracking system for unit supplies and equipment
Managed $35 million in sensitive equipment and weapon systems
SECURITY LABS
50
Boxes Completed
2
Platforms
25+
Techniques Mastered