IT System Engineer at greehill in Budapest, Central Hungary, Hungary

Who we are

As the global leader in nature-based smart city solutions, we help cities around the world become greener and more resilient against climate change. We apply the latest remote sensing technologies and develop machine learning algorithms and software to automate the analysis of urban trees and green spaces. With our cloud-based platform, cities can improve the operational efficiency of green space management and strategic city planning to create a greener, healthier, safer, and more resilient urban environment. We currently have offices in Berlin, Paris, San Francisco, and Singapore, with production headquarters in Budapest.

We are seeking an experienced and highly skilled IT System Engineer to join our technology team. The ideal candidate will have a strong background across on-premise and cloud infrastructure, network management, and IT operations, with a proactive approach to ensuring system performance, security, and reliability at scale.

Your contribution will be

• Design, implement, and operate IT infrastructure across on-premise and cloud environments (Azure)
• Ensure high availability, performance, and reliability of systems through proactive monitoring and optimization
• Configure, deploy, and maintain network infrastructure in a hybrid environment (routing, firewalls, VPNs, DNS)
• Implement and maintain backup, disaster recovery, and business continuity solutions for on-premise systems
• Implement and maintain endpoint security
• Automate operational tasks and infrastructure provisioning using scripting and infrastructure-as-code tools
• Troubleshoot and resolve complex infrastructure, network, and system-level issues
• Collaborate with application developers to support development and delivery
• Maintain clear and up-to-date documentation of infrastructure, processes, and standards
• Evaluate and introduce new technologies to improve scalability, performance, and cost efficiency
• Support capacity planning and cost optimization across infrastructure environments
• Own hardware lifecycle and procurement

We need you to have

• Bachelor’s degree in Computer Science, Information Technology, or related field
• 5+ years of experience in IT system engineering, infrastructure, or operations roles
• Strong expertise in managing on-premise Linux server environments
• Hands-on experience with Entra ID and Microsoft 365 administration
• Hands-on experience with endpoint management (InTune)
• Hands-on experience with cloud platforms (Azure and/or AWS) and hybrid architectures
• Experience with virtualization technologies (VMware, Hyper-V, KVM)
• Solid understanding of networking concepts (TCP/IP, DNS, DHCP, VPN, firewalls)
• Experience with monitoring, logging, and alerting systems
• Strong knowledge of security best practices, system hardening, and access management
• Experience with backup, disaster recovery, and high-availability setups
• Scripting skills (Bash, Python) and automation mindset
• Strong troubleshooting and problem-solving capabilities in complex environments
• Excellent communication and collaboration skills

We value if you have

• Master’s degree in a relevant field
• Certifications such as Microsoft Certified, AWS/Azure certifications, CompTIA (Network+, Security+), or Cisco (CCNA)
• Experience with containerization and orchestration (Docker, Kubernetes)
• Knowledge of DevOps practices and CI/CD pipelines
• Experience with infrastructure as code (Terraform, Ansible)
• Exposure to enterprise-scale, high-availability, and distributed systems

How we work – We believe the best ideas happen when people spend time together. That’s why we work 4 days a week from the office, with 1 day from home, creating space for collaboration while still keeping some freedom.