Software Systems Engineer Network Core (80-100%)
Zürich
Key information
- Publication date:22 January 2026
- Workload:80 – 100%
- Contract type:Permanent position
- Place of work:Zürich
Are you an engineer passionate about building software and systems that improve the everyday work life of people around the world? Read on, this job might be for you!
Software Systems Engineer Network Core (80-100%)
Your Mission
As a Software Systems Engineer Network Core, you will work on improving our SD-WAN portfolio which is the foundation of Open Systems' global network operations. You will be involved in projects from their concept phase all the way through to deployment and operations. Working as part of a highly-skilled engineering team you will build services that improve the performance, availability, and security of our customers' networks without the need for human intervention in the following areas:
- Hardware Performance Optimization
- Data Plane Optimization
- Traffic Shaping
Your Qualifications
We are looking for a Software Systems Engineer with a strong foundation in Linux internals and network performance, who enjoys solving complex, performance-critical problems through software.
- Higher education (ETH, university, FH) with a degree in Computer Science or a related field and relevant professional experience
- Understanding of networking technologies and protocols (e.g. dynamic routing, firewalling, TCP/IP, ...)
- Strong experience with Linux or UNIX-based operating systems, including system tuning and performance analysis
- Experience in software engineering with scripting languages (e.g. Bash, Python, Perl) and concurrent compiled languages (e.g. Go, Rust, C)
- Hands-on Experience with Network Traffic Optimization Frameworks (DPDK, VPP, BPF)
- A passion for automation, reliability, and performance optimization
- Proficiency in English
Bonus
- Experience with the Linux Netfilter stack
- Knowledge of network security concepts and practices
- Knowledge of software and system testing practices (CI/CD)
- Familiarity with agile development cycles
What we offer:
Want to join a crazy good cybersecurity team? You’ll be among people who believe in:
Caring PASSIONATELY about keeping our customers safe – We’re dedicated to solving problems. Whatever it takes.
Thinking UNCONVENTIONALLY to stay ahead – The world never fails to surprise us. So let’s surprise it first.
Doing the hard work to make things SIMPLE – Craft and hone something that delights in its simplicity.
Working COLLABORATIVELY to build success – The power of the team will always make us faster and better.
As a testament to this, Open Systems has been recognized as an outstanding place to work. You’ll be surrounded by smart teams who enrich your experience and provide opportunities you will need to develop your skills and advance your career.
We look forward to receiving your online application (please note that you have to compress your application into two attachments).
Come as you are! We search for amazing people of diverse backgrounds, experiences, abilities, and perspectives. Open Systems welcomes and encourages diversity in the workplace regardless of race, gender, religion, age, sexual orientation, disability, or veteran status.
Direct applications only will be considered.
About Open Systems:
Backed by the Service Experience Promise, Open Systems simply and cost-effectively connects and secures hybrid environments and thus ensures your organization can meet business objectives. Open Systems uniquely focuses on a superior user experience when helping organizations reduce risk, improve efficiency, and accelerate innovation. The Open Systems SASE Experience delivers on the promise of ZTNA with a comprehensive, unified and easy-to-implement and use SASE platform that combines SD-WAN and Security Service Edge delivered as a Service. We provide 24x7 operational management and engineering support from assigned engineering teams and ensure affordable and predictable costs.
Discover more at www.open-systems.com.
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