Senior Network Infrastructure Engineer (Cisco ACI)
Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Oct 15, 2026.
Senior Network Infrastructure Engineer (Cisco ACI)
Zurich Region | Hybrid
Are you an experienced Network Engineer who enjoys designing highly available enterprise infrastructure rather than simply keeping the lights on?
I'm currently supporting a well-established Swiss enterprise operating one of Switzerland's most complex and business-critical IT environments. This is an opportunity to join a highly skilled engineering team responsible for a large-scale, mission-critical network infrastructure where reliability, security and innovation are equally important.
This is an engineering-focused position with significant ownership of a modern Cisco Data Center environment, offering the opportunity to shape the future network architecture over the coming years.
Your Responsibilities
Design and implement enterprise Data Center Network solutions
Take technical ownership of a large Cisco ACI environment
Engineer secure, scalable and highly available network infrastructure
Drive network automation initiatives using technologies such as Ansible and Git
Design and maintain Load Balancer infrastructure
Produce technical concepts, architecture documentation and operational standards
Provide expert 3rd Level Support for complex networking issues
Participate in an on-call rotation (approximately one week every two months, with most interventions handled remotely)
What We're Looking For
7+ years of Network Engineering experience
Strong Cisco Enterprise networking background
Hands-on Cisco ACI experience (essential)
Experience with enterprise Data Center Networks
Strong understanding of:
- Routing & Switching
- Network Security
- Load Balancing
- LAN / WLAN
- High Availability
Experience with automation tools such as:
- Ansible
- Git
Strong architectural and troubleshooting skills
Fluent German (minimum C1)
Good English
Nice to Have
Enterprise campus networking
Service Provider networking
Infrastructure-as-Code
Automation mindset
What's On Offer
Hybrid working
Flexible working hours
5 weeks holiday with additional holiday purchase options
Excellent training and professional development support
Comprehensive wellbeing and sports programme
Public transport contribution
Parking options available
Staff discounts across restaurants, shops and other facilities
Outstanding employee events and long-service rewards
Friendly, collaborative engineering culture with flat hierarchies
Why This Opportunity?
This isn't a traditional operations role.
You'll be joining a team responsible for one of Switzerland's most critical enterprise network environments, where your work directly supports thousands of users and business-critical operations every day.
The team is investing heavily in modern networking, automation and long-term infrastructure strategy, making this an excellent opportunity for an experienced engineer looking to have genuine technical influence rather than simply maintaining existing systems.
This position has become available as part of a planned succession strategy, providing a stable long-term opportunity with excellent knowledge transfer and future ownership of key technologies.
If you're an experienced Cisco Network Engineer with strong Cisco ACI expertise and are looking for your next challenge, I'd be delighted to discuss the opportunity in confidence.