Network Engineer (m/f/d)

• Trust-based working hours and flexible working arrangements
• Company pension scheme and product discounts
• Bicycle leasing for work purposes and discounts at selected fitness and health centres
• personalised training, seminars and structured expert or management career paths

What you can always count on at persona service:

• Intensive preparation for your interview with our client
• A monthly allowance of €50 towards your travel costs, depending on the role – e.g. for the Deutschlandticket and much more
• Bonuses, as well as holiday and Christmas pay, and attractive industry-specific allowances
• Free tuition for your children on the Ubimaster learning and tutoring platform
• Numerous shopping discounts with well-known brands via our corporate benefits programme
• Excellent personal support and regular feedback meetings
• A wide range of further training opportunities

We are looking for a Network Administrator (m/f/d) to support the IONOS Group Office Networks (OFNIG) team. The team is responsible for the entire office network infrastructure of the IONOS Group, as well as secure VPN access for employees and partners. The aim of the role is to take charge of day-to-day operations, thereby relieving the internal team of the burden of strategic projects such as network standardisation, automation and site roll-outs. Responsibilities: Network operations and fault resolution Analysing and resolving network and connectivity issues Diagnosing faults relating to LAN, Wi-Fi and VPN problems Troubleshooting network components such as switches, access points and end devices Coordination with manufacturers and internal contacts in the event of hardware faults Escalation of complex or security-related issues to the relevant specialist teams Firewall and security management Processing of firewall changes and firewall tickets Creation, adjustment and resolution of firewall rules Review of change requests in accordance with existing security and change processes Documentation of all measures implemented Network deployment and access management Deployment and administration of VLANs, subnets and IP address ranges Configuring switch ports and port security settings Providing support for VPN access, as well as analysing and resolving VPN issues Ticket and documentation management Processing and maintaining incidents, service requests and changes in Jira Ensuring comprehensive and traceable documentation in Jira and Confluence Creation of handover documentation to ensure long-term knowledge retention Job requirements: Substantial practical experience in enterprise/office networks: switching, Wi-Fi, VPN and general LAN troubleshooting. Practical experience in the administration of network firewalls (rule creation, change requests, troubleshooting access issues). Experience with Aruba and Cisco firewall platforms (e.g. ASA/FTD) is an advantage, as these are used in the OFNIG environment. Experience in using a ticketing/change management tool (Jira) and in adhering to defined processes. Willingness and ability to work closely and on a daily basis with an internal team and its internal tools. Very good command of English; knowledge of German is an advantage (some tickets and enquirers use German), but not essential. Relevant certifications are an advantage (e.g. CCNA/CCNP or equivalent).

• You have solid practical experience with enterprise and office networks, particularly in the areas of switching, Wi-Fi, VPN and general LAN troubleshooting
• You have practical experience in administering network firewalls, such as creating rules, processing change requests and analysing access issues
• Experience with Aruba and Cisco firewall platforms (e.g. ASA/FTD) is an advantage
• You are confident in using a ticketing and change management tool such as Jira and reliably adhere to defined processes
• You work meticulously and document your actions comprehensively and in a traceable manner, for example in Confluence
• You are characterised by a structured, analytical approach to fault diagnosis and troubleshooting
• You have the willingness and ability to work closely with an internal team on a daily basis, utilising their tools
• You have a very good command of English; knowledge of German is an advantage but not essential
• Relevant certifications such as CCNA or CCNP, or equivalent, are an advantage