Site Reliability Engineer – Low‑Latency Trading Infrastructure

About the role

We are looking for a hands‑on Site Reliability Engineer to build highly automated, performance‑critical Linux environments for a proprietary trading firm. You will work closely with developers and trading teams to optimise reliability, observability and system performance at microsecond‑level precision.

Key responsibilities

• Linux performance engineering (CPU isolation, IRQ affinity, NUMA, kernel tuning)
• Infrastructure as Code using Terraform and Ansible
• Observability and profiling with Prometheus, Grafana, eBPF, perf and ftrace
• CI/CD and automation‑first operations
• Low‑latency networking and production troubleshooting
• Reliability engineering for trading‑critical systems

Required profile

• 4‑8+ years of experience in SRE, Linux engineering, DevOps or infrastructure engineering
• Strong knowledge of Linux internals and performance‑sensitive systems
• Solid networking expertise (TCP/IP, UDP, Multicast)
• Automation and scripting experience (Python, Terraform, Ansible)
• Experience with containers and modern observability stacks
• Ability to work in a fast‑moving trading environment with high ownership and engineering autonomy
• Proven track record of greenfield improvements and operational maturity projects

Required skills

• Linux
• Terraform
• Ansible
• Prometheus
• Grafana
• eBPF
• perf
• ftrace
• Python
• TCP/IP
• UDP
• Multicast
• Containers (Docker/Kubernetes)

What we offer

• Competitive salary
• Permanent contract
• On‑site work in Zurich
• Immediate start date