The posting
About Aeven
Aeven is a Danish IT company specializing in digital infrastructure and IT operations. We help businesses build, manage, and secure their critical IT environments across data centers, hybrid cloud, networks, cybersecurity, applications, and SAP. Aeven provides reliable and secure IT services for organizations where stability, performance, and security are essential, supporting customers across highly regulated and business-critical industries. We combine strong technical expertise with a collaborative, people-focused culture, giving our employees the opportunity to work on meaningful projects, develop their skills, and grow their careers. At Aeven, we believe that great technology starts with great people.
Role Overview
As Senior Network SME, you will own the network layer of Aeven's private cloud platform end to end: design the Cisco ACI fabric, build it as code, and act as the L3/L4 authority once it is in operation. You will work as a peer in a cross-functional platform team, so the fabric is repeatable, auditable and supportable by Network Operations.
Your Responsibilities
- Design the spine-leaf EVPN-VXLAN fabric and the Netris multi-tenant model (VPC, VRF, ACL, NAT and load balancing) and its integration with compute, firewalls and the WAN / MPLS core.
- Build the fabric and tenant services as code using the Netris API, Terraform, Git and CI/CD pipelines with automated validation.
- Run changes through the pipeline, and own lifecycle tasks such as Netris and Dell SONiC upgrades and capacity planning.
- Resolve complex incidents as the top technical escalation (L3/L4), and work with Netris and Dell support on root cause.
- Write runbooks and documentation, and coach colleagues in operations to run the platform day to day.
- Take part in the on-call rota for the platform once it is in operation.
Your Qualifications and Experience
- Minimum 10 years in networking, including 5 years designing and operating EVPN-VXLAN data centre fabrics in production.
- Strong routing skills (BGP, VRF, VXLAN) and excellent troubleshooting skills.
- Hands-on experience with Infrastructure as Code for networks: Terraform and/or Ansible, Python, Git and CI/CD.
- Comfortable working with Linux.
- Fluent English, written and spoken; able to explain designs clearly to engineers and stakeholders.
Advantageous qualifications
- Notable advantage is hands-on experience with Dell SONiC and Netris.
- Knowledge of Apache CloudStack or an equivalent multi-tenant cloud management platform on KVM / VMware
- CCNP Data Center or equivalent certification
Employee benefits
- Up to 6 weeks of paid time off (5 weeks and the additional week of paid time-off is available after your first year of employment with Aeven)
- 5 sick days per year
- Possibility to work from home
- Flexible cafeteria account for leisure (18,000 CZK per year) allowing you to use points for MultiSport, public transport tickets, or contribute to your pension savings
- Meal vouchers in the amount of 200 CZK per workday (Aeven covers 55%)
- Referral bonus (20,000 – 60,000 CZK)
- Free snacks on Mondays and monthly get-togethers
- Free fruits and vegetables every day
- Height-adjustable tables
- Co-working offices in Ostrava and Brno
- Czech language lessons
- Annual flu vaccination for free



