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Radoslav Nikolov

Radoslav Nikolov

Cybersecurity & Infrastructure Security Engineer | SIEM | Endpoint Protection | NIS2 Readiness

Talent
LondonMember since June 3, 2026
Suricata IDSEndpoint ProtectionInfrastructure SecurityNetwork SecurityIncident ResponseISO/IEC 27001NIS2 ReadinessRisk AssessmentAccess ControlOperational ResilienceVPNInformation Security GovernanceHTMLPHPCSSJavaScriptMySQLDebian LinuxBGPOSPFZero Trust
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Suricata IDSEndpoint ProtectionInfrastructure SecurityNetwork SecurityIncident Response

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

Skills

Cybersecurity & Infrastructure Security EngineerSIEMEndpoint ProtectionNIS2 Readiness

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