Senior Network Engineer (m/f/d)

Join us to make education accessible for all! Strengthen our IT Infrastructure Team in full-time (40 hrs./week) as Senior Network Engineer (m/f/d) within Germany or the UK remotely or at one of our office locations. This role focuses on ensuring stable, secure, and high-performing network connectivity across all company locations. You will design, implement, and optimize enterprise network infrastructure, with a strong focus on Cisco technologies, reliable multi-site operations, and network automation. Your Tasks: Ensure stable and secure operation of LAN, WAN, WLAN, and Internet connectivity across all company locations, including WAN failover solutions and Cradlepoint-based backup connections. Plan, design, and implement network infrastructure for new sites, network expansions, and modernization initiatives, ensuring high availability, scalability, and secure connectivity. Configure, maintain, and optimize Cisco enterprise network environments, including Catalyst switches, routing and switching technologies, Cisco Meraki, and Cisco Catalyst 9800 Wireless LAN Controllers. Manage and operate Cisco Catalyst Center, formerly DNA Center, for network automation, monitoring, lifecycle management, and operational efficiency. Troubleshoot complex network and connectivity issues, perform root cause analysis, resolve incidents and performance problems, and participate in on-call support and escalation processes as required. Collaborate with infrastructure, security, and cloud teams on network-related projects, while creating and maintaining network documentation, diagrams, standards, and operational procedures. Your Profile: Proven experience in enterprise network environments, including the operation and support of business-critical network services across multiple sites. Strong hands-on expertise with Cisco enterprise networking technologies, including Cisco Catalyst switches, routing and switching, Cisco Catalyst Center, Cisco Meraki, and Cisco Catalyst 9800 Wireless LAN Controllers. Solid understanding of TCP/IP, VLANs, WLAN technologies, network security fundamentals, as well as high-availability and failover concepts. Experience in troubleshooting complex network and connectivity issues, including root cause analysis, incident resolution, and performance optimization. Ability to independently plan, implement, and document network changes in a structured and reliable way. Strong collaboration and communication skills when working with infrastructure, security, and cloud teams on network-related topics. Additional experience with advanced WLAN design and optimization, including Ekahau wireless site surveys, is an advantage; Cisco certifications such as CCNA, CCNP Enterprise, CWNA, or similar are also beneficial. Familiarity with SD-WAN technologies, network automation using Python, Ansible, APIs, or Terraform, monitoring and observability platforms, and cloud networking, ideally Azure, would be a plus. We Offer Be you at IU: We support and empower you to achieve your personal and professional goals. After all, your happiness significantly contributes to a positive and productive environment. Work wherever you want...: Digitalization is part of our DNA. Decide for yourself which place sparks the most productivity in you. You love remote work? No problem! Would you like to work abroad for a while? Our WorkFlex Benefit makes it possible. ... and flexible in terms of time: It's your job; We trust you and give you the greatest possible freedom to organize yourself. Take your knowledge to a new level: Where else, if not with us? Enjoy free access to all our e-learning platforms. In addition, we will finance you a complete technology course of your choice. Make your journey sustainable: Whether it's a DeutschlandTicket subsidised to just €13.45, or a JobRad (bike leasing) offer, enjoy the freedom of mobility for both work and personal activities, while also making an eco-friendly choice. 33 days to rest: Taking breaks is important! In addition to 30 flexible vacation days per year, we also give you an extra day off on your birthday, as well as days off on Christmas Eve and New Year's Eve. IU International University of Applied Science (IU) is Germany's largest university of applied science – and we are not just an excellent choice for studying, but also an outstanding Great Place to Work®! As an Edutech company, we rely on state-of-the-art technology and data-driven approaches. That's why AI-driven voice assistants and other GPT systems have long become part of our daily work routine, helping us to focus on exciting projects. Here at IU over 4,000 employees are dedicated to making a difference. Become part of our Engineering team ! We're passionate, competitive, open to all things new - and we love data. We live to code anything that makes IU students and IU services better. Sounds like the perfect job for you? Then apply now! Simple, fast and even without a cover letter. If you have any further questions, please feel free to contact [email protected]. Please note that, for data protection reasons, we are not allowed to process email applications. Actions speak louder than words: We cherish our "Culture of Everyone" and would like to take this opportunity to empathize that we do not tolerate discrimination towards any race, gender, religion, age, sexual orientation or disability. We welcome you as you are and look forward to nurturing our diverse community at the IU!