Данил

Danil Obushko
Information Security Specialist | Network Security Engineer | Security Lead

Kyiv, Ukraine | Remote / Hybrid

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Professional Summary
Information Security Specialist with 6+ years of experience in designing and implementing
security solutions for enterprise IT and industrial OT environments. Strong expertise in
security architecture design, network segmentation, identity and access control, network
protection, threat detection and continuous security monitoring, including OT/ICS security.
Proven experience in leadership roles, aligning security architectures with business strategy
and compliance requirements.

Key Skills
●​ Information & Network Security Architecture
●​ Enterprise LAN/WAN & Data Center Security
●​ OT / ICS / SCADA Security (Purdue Model)
●​ Network Segmentation (IT / OT, VRF, VXLAN)
●​ Access Control (NAC, Cisco ISE, 802.1X, RBAC/ABAC)
●​ Firewalls, VPN, Secure Remote Access
●​ SIEM, Log Analysis, Network Traffic Analysis (NTA)
●​ Risk Assessment, Threat Modeling, Incident Response
●​ Security Policies, Procedures & Compliance
●​ Vendor Evaluation & Security Solutions Assessment

Technical Skills
Network & Security: Firewalls, IDS/IPS, WAF, VPN, IPsec, TLS/DTLS, SD-WAN, MPLS, L3VPN,
VRF

Routing & Switching: TCP/IP, BGP, MP-BGP, OSPF, EIGRP, VLAN, VXLAN, vPC, 802.1X

Access Control: Cisco ISE, NAC, AAA, RADIUS, TACACS+

Monitoring: SIEM, NTA, NetFlow, Telemetry, Network Assurance

Security Models: Zero Trust, Defense in Depth

Standards & Frameworks: ISO/IEC 27001

Environments: Enterprise IT, Data Centers, Industrial / OT Networks
Professional Experience

Information Security Specialist (IT & OT)
MHP — Ukraine | Aug 2024 – Feb 2026

●​ Lead and maintain enterprise security controls across IT/OT environments
●​ Oversee risk assessments and coordinate remediation activities
●​ Govern secure architecture and ensure security-by-design across project lifecycles
●​ Lead the implementation and governance of enterprise security controls, platforms, and
security solutions (IAM, PAM, EDR/XDR, SIEM, DLP, vulnerability management, email
and network security)
●​ Supervise incident response and partner with SOC to enhance detection and monitoring
capabilities
●​ Ensure alignment of the security program with industry best practices and compliance
requirements, continuously enhancing organizational security maturity
●​ Promote security awareness and collaborate with IT and business teams to ensure
consistent control enforcement
●​ Support secure digital transformation and strategic business initiatives

Network Security Engineer / Security Lead
GREENNET — Ukraine | 2021 – Aug 2024

●​ Design of network and network security architectures (HLD / LLD)
●​ Presales activities, estimations, and technical proposals
●​ Implementation and support of enterprise and carrier-grade networks
●​ MPLS / L3VPN and SD-WAN solutions
●​ Firewalling, routing, switching, WLC, VPN
●​ Cisco ISE multi-domain integration (ISE, Firewalls, SD-Access, SD-WAN)
●​ Ownership of network stability, performance, and security

Network Security Engineer
Metinvest Digital — Ukraine | Jan 2018 – Jan 2021

●​ Enterprise network and security design
●​ Data Center networking and security operations
●​ Firewalling, VPN, routing and switching
●​ Application, endpoint, and network security
●​ Monitoring and support of large-scale corporate environments

Network Engineer
lifecell — Ukraine | Jan 2017 – Jan 2018

●​ Firewall migration and customer support
●​ Remote access solutions
●​ Enterprise and wireless network support
●​ Rack and cable infrastructure deployment
Education
Bachelor’s Degree — DonNU, Donetsk

Cisco Networking Academy — Kharkiv

Certifications
●​ CCNP Security
●​ CCNP Enterprise
●​ Cisco Certified Specialist — Enterprise Core
●​ Cisco Certified Specialist — Enterprise Design
●​ Cisco Certified Specialist — Security Identity Management
●​ CCNA Security
●​ CCNA Routing & Switching
●​ CCDE in progress
●​ CISSP planned

Languages
Ukrainian — Native

Russian — Native

English — Intermediate / Upper-Intermediate