IT Systems Network Engineer private banking

Job Description

As part of strengthening our Infrastructure team, we are looking for an IT Systems / Network Engineer to contribute to the management of PC/server images and to ensure the proper functioning, security, and availability of critical network and proxy environments (primarily Zscaler).

This role combines strong hands‑on operational activities with coordination and management responsibilities (support, vendors, escalations, documentation, continuous improvement).

• Ensuring that business‑critical systems remain stable, secure, and continuously connected.
• Overseeing day‑to‑day network activities, planning upgrades, and managing escalations or high‑impact incidents.
• Managing network performance,
  reviewing vendor contracts, and ensuring alignment with regulatory and security standards.
• Driving continuous improvement initiatives by defining,
  documenting
  , and enforcing network and system standards.

• Collaborating with security teams to define and implement proxy and security policies, including URL filtering, cloud application control, file filtering, DLP, and access management.
• Configuring and maintaining Zscaler‑related features such as SIPA, Cloud Firewall, PAC files, NSS, and ZCC.
• Troubleshooting and resolving Zscaler incidents by analyzing logs, performing traces, and applying corrective actions.
• Suggesting and implementing improvements to enhance performance, capacity, and scalability across proxy and network layers.

• Providing 2nd‑ and 3rd‑level technical support for complex network issues.
• Configuring and installing network devices and services such as routers, switches, firewalls, load balancers, VPNs, and QoS.
• Monitoring network and system performance to ensure availability, reliability, and secure connectivity.
• Monitoring system resource utilization, trends, and capacity planning to anticipate future needs.
• Interfacing with external suppliers, including integrators and telecom providers, to support network delivery and operations.
• Supporting business‑critical financial feeds and guaranteeing their availability through proactive monitoring and incident management.

• You have experience in the field of networking
  .
• You justify in‑depth knowledge of network and cloud architecture, design, and infrastructure
  .
• You are confident in managing third‑party providers as well as coordinating with internal support teams
  .

• You are proficient with Zscaler solutions
  , particularly ZIA and ZPA
  ; you hold a Zscaler certification (considered an asset).
• You have experience managing corporate devices equipped with ZCC
  .
• You possess extensive hands‑on experience with IPSec and GRE tunnel setup, configuration, and maintenance
  .
• You have expertise in firewall technologies such as Fortinet or Checkpoint
  .
• You have experience in analyzing network traffic through PCAP files, Fiddler logs, and HTTP/HTTPS headers
  .
• You have professional experience related to network architecture, including Cisco technologies and Cisco ACI
  .
• You possess knowledge of LAN, MAN, and WAN implementation and troubleshooting
  .
• You are familiar with Python or another scripting language
  .
• You are skilled in producing clear, structured, and comprehensive technical documentation
  .

• You are capable of managing relationships with multiple teams, and comfortable working independently.
• You have strong communication skills
  .
• You are rigorous, service‑oriented, and committed to delivering high‑quality work.

• You are fluent in both French and English
  .
• You are a Swiss resident
  .

• An enriching, dynamic, and stimulating professional experience.
• Professional stability with a long‑term contract
  .
• Monthly support to finance your lunches.
• The opportunity to be part of a multicultural, supportive, hardworking team driven by values.
• Up to 3 days of training per year.
• A competitive salary package.
• Free and unlimited access to our global E‑learning platform → Over 16,000 modules available.
• Annual license to access our banking/finance profession training platform to enhance your knowledge of various…