About
Highly experienced System Administrator and Operations Engineer with over 15 years of proven expertise in infrastructure management, distributed applications, and operational stability. Currently transitioning into a Security Engineer role, leveraging deep knowledge in DevOps practices, cloud technologies, and cybersecurity to enhance system resilience and compliance. Adept at automating security procedures, conducting penetration tests, and ensuring regulatory adherence (ISO 27001, NIST, GDPR) in mission-critical environments.
Work
Lemtrans
|Security Engineer
→
Summary
Currently leading the development and implementation of advanced cybersecurity audit procedures, penetration testing, and compliance initiatives to bolster organizational security posture.
Highlights
Developed and implemented comprehensive cybersecurity audit procedures, automating vulnerability scanning and analysis across corporate, public, and internal domains using containerization and tools like Nmap, Nikto, Wapiti, and WhatWeb.
Organized and conducted internal/external penetration tests, including developing stealth configurations to bypass corporate IDS/IPS, enhancing perimeter analysis and attack resistance.
Integrated modern infrastructure automation tools (Bash/Python scripts, Docker) to build security-focused workflows for automatic auditing and incident response, significantly improving efficiency.
Ensured robust compliance with regulatory requirements and standards, including ISO 27001, NIST, and GDPR, through compliance analysis, documentation, and implementation of best practices.
Proactively monitored for new vulnerabilities and implemented timely updates and measures to quickly eliminate risks in software, minimizing potential security exposures.
FORM
|Production Engineering Specialist Ops Department
→
Summary
Managed mission-critical Java applications and distributed systems on Solaris and Linux, ensuring high availability, performing system hardening, and leading disaster recovery efforts.
Highlights
Administered and maintained customer Java applications on Solaris and Linux, ensuring operational stability and high availability for mission-critical services.
Provided comprehensive technical support to clients, resolving complex issues and offering consultations on optimal system use, enhancing client satisfaction.
Automated configuration and management tasks using Ansible and Docker, enhancing development flexibility and efficiency for CI/CD pipelines with GitLab/GitHub and TeamCity.
Led recovery processes after critical system failures, minimizing data loss and restoring application functionality within aggressive timelines, ensuring business continuity.
Managed and optimized database systems including MySQL, MSSQL, and Oracle DB, alongside administering email systems (sendmail) and DNS for reliable domain resolution.
WORLDAPP, Inc.
|Production System Administrator
→
Summary
Oversaw the security and deployment of web applications across diverse production environments, administering a large server infrastructure and supporting customer RFIs.
Highlights
Enhanced security for company and production systems, mitigating risks and ensuring data integrity.
Deployed and updated web applications on production systems using Ant scripts and CruiseControl, ensuring seamless and efficient releases.
Customized and installed applications for clients across various configurations, including DBMS (MySQL, MS SQL, Oracle, DB2), web servers (Apache, IIS), and JSP containers (Tomcat, WebSphere, F5 Big-IP).
Administered a hybrid server environment of 40+ remote and local servers, ensuring high availability and optimal performance.
Authored and maintained technical documentation for production systems and contributed to security-related RFI responses, improving customer trust and compliance.
State administration of the Treasury of Ukraine in Chernihiv region
|System Administrator
→
Summary
Managed network infrastructure, mail servers, and database systems, ensuring robust information and network security for the State Treasury.
Highlights
Installed and maintained antivirus systems, significantly reducing malware incidents and enhancing system protection.
Configured and supported network routers and firewalls, ensuring secure and reliable connectivity for organizational operations.
Managed MailSweeper and MS Exchange mail servers, ensuring efficient and secure email communication.
Administered DBMS MS SQL, performing critical reporting and backup operations to maintain data integrity.
Provided comprehensive technical support for server and workstation software, resolving issues promptly to minimize downtime.
ITEC
|System Administrator
→
Summary
Maintained critical local servers and networks, ensured security, and provided technical support and training to staff.
Highlights
Maintained critical local servers including Mail, Antivirus, Antispam, Web, CVS, FTP, Samba, and Proxy, ensuring continuous operation and data integrity.
Administered and supported local networks and remote workplaces, optimizing office and system software installation and efficiency.
Implemented robust security measures to protect networks and servers from unauthorized access and virus attacks, safeguarding sensitive information.
Provided technical consultation and training to staff on various software products, significantly enhancing user proficiency and productivity.
Collaborated with Ukrtelecom to facilitate xDSL internet connectivity for clients, expanding access to over 128 users.
Advertising agency 'Gold Future'
|System Administrator
→
Summary
Installed, tuned, and supported company software and networks, troubleshooting issues and providing staff training.
Highlights
Installed, tuned, and provided ongoing support for essential software applications, ensuring smooth business operations.
Diagnosed and resolved critical software and network issues, including network equipment, OS, and service network settings, minimizing operational disruptions.
Provided technical consultation and training to staff on various software products, enhancing overall team efficiency and system utilization.
Education
Central Institute of post diploma pedagogical education.
→
Technologist
Organization Management
Chernihiv Technological University
→
Engineer
IT
Chernihiv Radio-Mechanical technical secondary school.
→
Technologist
Radio Electronics
Skills
Mission-Critical Environments
Mission-critical, Production Environments, High Availability.
Cybersecurity
Vulnerability Scanning, Penetration Testing, IDS/IPS, Security Audits, Incident Response, Security Hardening, Threat Intelligence.
Compliance & Standards
ISO 27001, NIST, GDPR, Compliance Analysis, Best Practices.
System Administration
Server Administration, Linux System Administration, Windows Server, Infrastructure Management, IT Hardware Support, System Deployment, Troubleshooting.
Cloud Technologies
Google Cloud, AWS, Cloud Infrastructure, Cloud Migration.
DevOps & Automation
Ansible, Docker, CI/CD, GitLab, GitHub, TeamCity, Bash Scripting, Python Scripting, Automation.
Web Servers & Databases
nginx, IIS, Apache, MySQL, MSSQL, Oracle DB, SQL, DBMS, Tomcat, WebSphere.
Networking & Connectivity
DNS, F5 BigIP, Routing, Firewall, xDSL, Network Security.
Mail Systems
sendmail, MailSweeper, MS Exchange, Email Blacklists.
Collaboration & Documentation Tools
SharePoint, JIRA, Confluence.
Operating Systems
Solaris, Linux, Windows.
Customer Support
Technical Support, Client Consultation, Issue Resolution.
Problem Solving
Troubleshooting, Anomaly Identification, Root Cause Analysis.
Continuous Learning
Adaptability, New Technologies, Professional Development.
Attention to Detail
Accuracy, Thoroughness, Quality Assurance.
Team Collaboration
Cross-functional Teams, Knowledge Sharing, Training.
Data Recovery
Disaster Recovery, Data Loss Prevention, Backup & Restore.
Version Control
GitLab, GitHub, CVS.
Monitoring Tools
Nmap, Nikto, Wapiti, WhatWeb, rundeck.
Interests
Technology Trends
Artificial Intelligence, Gaming Industry, Cybersecurity.
Outdoor Activities
Family Activities, Nature.
Reading
Books.