SIEM Engineer

Develop and operate the Security Defence infrastructure, processes, and procedures focusing on SIEM and logging.

• ensure compliance with policies and security requirements

• design, develop, and manage SIEM and logging solutions as a technical SME
• research and assess threats, fine-tune alerts, and create new detections
• maintain, monitor, and optimize the performance of SIEM and logging platforms
• develop dashboards, reports, and data models for performance insights
• create and document standards, policies, and procedures for SIEM infrastructure
• evaluate technologies and vendor solutions for cost, security, and usability
• collaborate with Incident Management and Security Operations during investigations
• oversee and ensure fulfilment of technology security requirements
• plan, implement, and test security systems while mentoring and consulting teams
• advise on technical security solutions and participate in Technology Risk Management
• identify and oversee key controls in network security, access, and system operations
• support audits and communicate findings to stakeholders effectively

• BSc in Computer/Industrial/Electrical & Electronics Engineering preferred, Master's in Computer Science or equivalent information security experience desired
• information security certifications (e.g., CISA, CISSP) are advantageous
• deep knowledge of security principles, practices, and standards with the ability to implement them in technical solutions
• strong communication skills to explain complex technology concepts at both high and technical levels
• proven expertise in IT general controls (systems development, change management, computer operations, and access controls)
• minimum 5 years of progressive experience in Information Security
• proficient in operating systems (UNIX/Linux, Windows Server), databases, and network security
• advanced knowledge of security tools like intrusion detection/prevention, security scanning/hardening, SIEM, and SOAR tools
• fluency in English

• cafeteria package & bonus or comission
• laptop & mobile phone (with unlimited voice and data tariff package)
• hybrid way of working
• corporate Health Insurance (Swiss Clinic)
• employee discounts (e.g. Employee Flotta)
• wellbeing program in the topics of sport, nutrition, relax and help (spiritual support)  
• 4 paid days leave/year for charity projects  
• other discounts (e.g. AYCM card, eye-glass allowance)  
• learning opportunities (internal trainings) 

At One, every moment counts.

Moments when the team connects us, when growth motivates us, when impact inspires us, when recognition pushes us, and when ambition drives us. These moments define our everyday. Everything we do contributes to making the moments we experience truly meaningful.

As part of the 4iG group, our goal is to become Hungary’s leading telecommunications provider. We build on a strong foundation and enrich lives with innovative solutions.

Every moment counts. Make the most of yours. Join us!