
Radoslav Nikolov
Cybersecurity & Infrastructure Security Engineer | SIEM | Endpoint Protection | NIS2 Readiness
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About
Cybersecurity and infrastructure security professional with 20+ years of experience across Linux-based infrastructure, cloud-hosted environments, SIEM monitoring, operational security, endpoint protection, regulated technology operations and ISO/IEC 27001 / NIS2 readiness. Hands-on experience with Wazuh SIEM, Suricata IDS, endpoint protection technologies, infrastructure hardening, logging and monitoring, access control, backup and recovery and operational resilience across production and business-critical environments. Experienced in information security governance, risk assessment, incident readiness and security-focused infrastructure operations within financial services, hosting, logistics and cloud environments.
Experience
Cybersecurity & Network Security Engineer at INTIME | UPS Authorised Service Contractor (2026-03 – Present)
- Lead network security, cybersecurity governance and operational security initiatives within a business-critical logistics and courier environment
- Support NIS2 readiness, cybersecurity GAP assessment and security improvement planning across infrastructure, operations and internal processes
- Operate and review SIEM monitoring activities using Wazuh, including security event analysis, alert review and infrastructure log correlation
- Implement IDS capabilities, including Suricata-based network intrusion detection, alerting and integration with security monitoring workflows
- Configure and manage endpoint protection controls, including Kaspersky-based endpoint security, malware protection and policy configuration
- Strengthen security controls related to access management, logging, monitoring, backup, network protection and operational resilience
- Develop and maintain cybersecurity documentation, incident management procedures and security-focused operational processes
- Support infrastructure security reviews, risk reduction activities and corrective security improvement planning
- Coordinate cybersecurity priorities with management and operational stakeholders, translating technical risks into practical security actions
Technology & Cybersecurity Lead at APRA Digital Ltd (2024-09 – 2026-02)
- Led technology strategy, infrastructure architecture and cybersecurity direction across cloud-hosted and business-critical environments
- Designed secure infrastructure and resilience controls based on Zero Trust principles, segmented environments and operational continuity requirements
- Led ISO/IEC 27001 and NIS2 readiness activities, including GAP assessments, security controls review and corrective improvement planning
- Developed cybersecurity governance documentation, including policies, procedures, incident readiness materials and operational security frameworks
- Advised on infrastructure hardening, access governance, logging, backup and recovery, incident readiness and risk reduction
- Prepared executive and technical analyses supporting compliance alignment, cyber resilience and strategic technology decisions
Head of Web Engineering and Infrastructure at Business Mobile Ltd (2021-01 – 2024-09)
Responsible for delivery and evolution of web platforms and custom software environments, supporting technology modernisation, scalability and operational resilience.
- Planned and coordinated task execution and project timelines, including prioritisation and synchronisation across teams
- Maintained and developed server and cloud infrastructure with environment separation, access control, and operational stability
- Developed and maintained administrative and client-facing interfaces using HTML, PHP, CSS, and JavaScript
- Implemented reliability and performance improvements, including optimisation of production environments
- Maintained logging, backup, and recovery procedures, and supported incident response in production environments
- Prepared and maintained internal technical documentation and participated in planning and deployment of new solutions
- Contributed to digital transformation initiatives through architecture improvements, automation and optimisation of service delivery
- Supported technology decisions aligned with growth, resilience and cost efficiency
Head of Technical Operations and Information Security at Seven Eleven Ltd (2018-01 – 2021-01)
- Led daily technical operations for web, hosting, and cloud services across multiple client projects
- Provided engineering leadership in planning architecture changes, scaling services and introducing new technology solutions
- Built, maintained, and administered Linux-based server and VPS infrastructure, including web servers, databases, DNS, and email services
- Participated directly in web application development and business logic implementation using HTML, PHP, CSS, and JavaScript
- Implemented baseline information security measures in production environments, including access control, web application protection, and DNS and email security
- Conducted incident, outage, and fault analysis through log review, diagnostics, and service recovery under pressure
- Planned and coordinated technical changes, migrations, and deployment of new solutions balancing client requirements, budgets, and technical constraints
- Maintained technical documentation and communicated technical solutions and limitations to clients and non-technical stakeholders
- Supported secure hosting operations for business-critical production environments
- Applied infrastructure security controls focused on availability, integrity and operational continuity
Regional Manager West, Internal Auditor, Information Security Officer at BORICA / BORICA-BANKSERVICE / BANKSERVICE (2009-01 – 2018-01)
- Represented the company and its high-technology products and services in the Western region, including trust services, electronic invoicing, data exchange systems, and banking applications
- Managed and coordinated regional implementation and support activities, including regional offices, staff, and operational planning
- Performed the role of regional Information Security Officer, including development and enforcement of internal policies, information classification, access control, and compliance monitoring
- Participated in the implementation of ISO/IEC 27001 at regional level through asset identification, risk assessment, control definition, and monitoring
- Conducted internal audits and specialised inspections, including review of archives, access registers, and logical traceability of data processing for regulatory compliance
- Worked closely with legal, technical, and executive teams on regulatory compliance, information protection, and IT governance improvements
- Worked within highly regulated financial and payment systems environments requiring strong operational security and audit readiness
- Contributed to enterprise architecture decisions and governance improvements supporting regulated technology and payment services
Managing Director at First Group Ltd (2007-01 – 2009-01)
- Responsible for overall operational management of the company, including planning, coordination, execution control, and external partner relations
- Organised logistics and production processes and implemented technical solutions to improve accountability and traceability
- Participated in product and service development, including assessment of technical applicability and market compatibility
- Built and maintained basic IT infrastructure and implemented access control, backup, and information protection measures
- Managed budgets and marketing activities with focus on cost control, efficiency, and measurable outcomes
IT Manager at Strimon Spa Club (2005-01 – 2007-01)
Managed the complete IT infrastructure of a hotel and spa complex, including web, reservation, database, and administrative systems.
- Designed and maintained local networks with segregation between administrative and guest zones and departmental access control
- Administered reservation systems, restaurant modules, CCTV, and communication systems ensuring uninterrupted operations
- Managed backup and data recovery processes, including disaster recovery
- Monitored network traffic and performance, responded to incidents, and coordinated with external vendors
System Administrator at Institute of Art Studies, Bulgarian Academy of Sciences (2004-01 – 2005-01)
- Built and maintained Debian Linux-based server infrastructure for research and administrative operations
- Administered web, file-sharing, and database servers ensuring high availability
- Implemented VPN servers for secure remote access for research staff
- Created and administered MySQL databases for research and internal information systems
System Administrator at Data.bg / Homelan (2003-01 – 2004-01)
- Built and administered Linux-based servers (Debian, Red Hat) for web, file, and media services
- Participated in network infrastructure management including routing using BGP and OSPF protocols
- Administered user accounts and internet access systems including billing platforms
- Maintained storage systems and ensured continuous operation of core IT services
System Administrator at Centrum Group (2002-01 – 2003-01)
- Administered Windows-based servers for web, file, and media services in an ISP environment
Education
Master in Financial Management and Marketing – Higher School of Insurance and Finance
Bachelor in Information Security – University of Library Studies and Information Technologies
