Varna, Bulgaria Hybrid

Heidelberg Materials AG is hiring an Operational Technology Lead Engineer

About the Role

Shape the future of industrial technology by leading the design and evolution of integrated IT/OT architectures. In this role, you will establish technical direction for enterprise-level operational systems, ensuring alignment with global engineering standards and business objectives. Your work will directly influence how industrial operations are digitized, optimized, and secured across a multinational footprint.

Key Responsibilities

  • Develop and maintain reference architectures that guide the deployment of OT services across global sites
  • Define technical standards, design blueprints, and implementation guidelines for system integrators
  • Produce detailed high- and low-level design documentation for complex industrial environments
  • Translate operational needs into robust, automated, and secure technology solutions
  • Lead innovation in OT platforms using IoT gateways and edge computing technologies
  • Ensure designs support deployability, maintainability, and long-term operational efficiency
  • Drive quality assurance and technological health across the solution lifecycle
  • Support strategic initiatives for remote operations and process optimization with strong security and resilience

Qualifications and Experience

  • Minimum of five years in system engineering or solution architecture roles within industrial IT/OT or automation
  • Hands-on experience with major Industrial Control Systems (ICS) and SCADA platforms
  • Proven track record implementing enterprise-scale OT data solutions using IoT gateways such as CopaData Zenon, HMS Red Lion, or Siemens Edge
  • Strong understanding of industrial networking, network segmentation, and OT-specific security frameworks
  • Direct experience with CCTV infrastructure, including cameras, NVRs, and VMS platforms like Milestone, Genetec, or NX Witness
  • Knowledge of machinery safety standards such as IEC 60204
  • Experience mentoring technical teams and leading cross-functional collaboration
  • Ability to communicate complex technical concepts to both technical and executive stakeholders

Work Environment and Benefits

This position operates in a hybrid model based in Varna, combining on-site collaboration with flexible working arrangements. You will join a forward-thinking digital hub focused on innovation, sustainability, and professional growth within a global organization.

  • Competitive salary with performance-based bonus
  • 25+ vacation days and daily lunch allowance
  • Support for ongoing education and professional development
  • Modern workspace in a prime location
  • Comprehensive health insurance and employer-sponsored pension plan
  • Sports and wellness benefits
  • Structured onboarding with buddy support
  • Regular team events and engagement activities
  • Clear pathways for career progression in a dynamic, international setting
Required Skills
Industrial Control Systems (ICS)SCADACopaData Zenon GatewayHMS Red Lion GatewaysSiemens EdgeIoT gatewaysIndustrial networkingNetwork segmentationOT security standardsVideo Surveillance Systems (CCTV)VMS SystemsMilestoneGenetecNX WitnessOT data engineering Industrial Control Systems (ICS)SCADACopaData Zenon GatewayHMS Red Lion GatewaysSiemens EdgeIoT gatewaysIndustrial networkingOT security standardsVideo Surveillance Systems (CCTV)CamerasNVRsVMS SystemsNetwork segmentationOT CybersecuritySystem Engineering
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About company
Heidelberg Materials AG
Heidelberg Materials is one of the world's largest integrated manufacturers of building materials and solutions with leading market positions in cement, aggregates, and ready-mixed concrete. We are represented in more than 50 countries with around 51,000 employees at almost 3,000 locations. At the centre of our actions lies the responsibility for the environment. As the front runner on the path to carbon neutrality and circular economy in the building materials industry, we are working on sustainable building materials and solutions for the future. We enable new opportunities for our customers through digitalisation.
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Job Details
Department Digital Hub Varna
Category embedded
Posted 3 months ago