EMD Serono is hiring a Senior Network Engineer to join our global Network Team at our headquarters in Darmstadt. In this individual contributor role, you will collaborate with colleagues across regions to ensure the stability, integrity, and continuous improvement of our enterprise network services, with a strong focus on data center connectivity, network security controls, and cloud integration patterns.
What You'll Do
- Design, implement, and operate enterprise network solutions with focus on data center networking and related services.
- Contribute to architecture and standardization: create and review technical documentation, reusable patterns, and reference designs; support design governance.
- Align with infrastructure and business architects to ensure end-to-end consistency across domains, including on-premises, private cloud, and public cloud connectivity integration.
- Engineer and operate network security components, such as segmentation, policy controls, and secure connectivity patterns, in line with security and compliance requirements.
- Improve reliability and operational efficiency through automation, standard changes, and enhanced monitoring and observability.
- Participate in incident handling, troubleshooting, escalation management, and on-call duties; collaborate with internal teams and external partners.
- Provide support primarily during Germany business hours, handle escalation activities via support tickets, monitoring, and user reports.
- Define, ensure, and enforce global standards and align with architects and technical leaders across infrastructure and business domains.
What We're Looking For
- 10+ years of experience in IT infrastructure and networking, including designing and operating enterprise network environments.
- Strong practical experience with common enterprise networking and security platforms, such as DC fabric, routing/switching, firewalls, load balancing, and DNS/IPAM.
- Solid understanding of core networking concepts and protocols, including BGP, OSPF, MPLS, VXLAN, VLAN/802.1Q, and QoS.
- Strong documentation skills for concepts, diagrams, and structured design and implementation documentation.
- Ability to work independently, drive topics end-to-end, and influence through standards in a global, federated environment.
- Strong communication and stakeholder management skills.
- English language proficiency.
- Willingness to travel up to 10% domestic and 10% international.
- Willingness to participate in an on-call rotation.
Nice to Have
- Experience with technologies such as Cisco ACI/Nexus and enterprise firewall solutions like Firepower/ASA or equivalents.
- Experience in hybrid or multi-cloud environments (AWS, Azure, GCP), especially in connectivity and integration contexts.
- German language skills.
Technical Stack
- Cisco ACI/Nexus
- Enterprise firewall solutions (e.g., Firepower/ASA)
- DC fabric, Routing/switching, Firewalls, Load balancing, DNS/IPAM
- Protocols: BGP, OSPF, MPLS, VXLAN, VLAN/802.1Q, QoS
- Cloud: AWS, Azure, GCP
Team & Environment
This is an individual contributor role within a global Network Team.
Work Mode
This is an onsite position based in Darmstadt, Germany.
We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We believe this variety drives excellence and innovation, strengthening our ability to lead in science and technology. We are committed to creating access and opportunities for all to develop and grow at your own pace, building a culture of inclusion and belonging that impacts millions and empowers everyone to champion human progress.
