(Senior) Network Engineer

• Configure routing protocols and network devices (e.g., OSPF, BGP, EIGRP)
• Manage firewalls, VPNs, IDS/IPS, and access controls
• Monitor network performance using tools like DataDog, SolarWinds, and others
• Implement efficient routing and switching protocols
• Design and secure WLAN environments
• Manage virtual networks in VMware, Azure (required), and AWS (advantageous)
• Configure networking on Windows, Linux/Unix, and macOS
• Diagnose and resolve network issues with tools like WireShark, TCPdump, and Nmap
• Tune network performance and remove bottlenecks
• Design topologies and implement VLANs and DMZs
• Deploy layered security architectures
• Ensure alignment with GDPR, ISO 27001, and related standards
• Maintain network diagrams and configuration records
• Validate configurations through testing and simulation

Do you have experience in macOS?, * CCNP/JCNP Certified or equivalent

• 3+ years of hands-on experience in a production environment with more than 100 servers and 500 users
• Experience with enterprise routers, switches, firewalls, and security tools
• Working knowledge of cloud networking (Azure, AWS)
• Experience with network architecture and documentation
• Familiarity with compliance standards and industry framework
• Excellent problem-solving skills, structured thinking, and a high level of independence
• Strong written and verbal communication skills in English
• Driving license

• Interesting, varied and broad range of tasks in one of the largest real estate companies in Germany and Europe
• Good working atmosphere, communication culture "on a first-name basis" and a pleasant working atmosphere in an environment with flat hierarchies
• Individual training and coaching for professional and personal development in our Academy and with our in-house business coach
• Professionally equipped, in-house gym with trainers and courses at the headquarters in Berlin as well as fitness and health offers through the Wellhub platform at all external locations
• Comprehensive company health management and company pension scheme
• Support on the way to work through a subsidy for the use of public transport and the option of leasing a bicycle through Eurorad
• Modern IT equipment such as laptop and cell phone
• Mobility and flexibility through the use of pool cars and company cars to carry out tasks
• Flexible working hours and mobile working for an even better work-life balance
• Exciting virtual range of family-friendly benefits, including vacation programs, leisure and sports activities and consulting services with our partner company Voiio
• Opportunity to attend Bundesliga matches of FC Union Berlin, our favorite club
• Discounts in selected hotels worldwide with up to 30% on overnight stays and special conditions on food and drinks
• Employee discounts for special conditions in the areas of media, fashion, leisure, facilities and much more via a partner company
• Drinks and a selection of fruit
• Additional days off on Christmas Eve & New Year's Eve