Network & Proxy Support Team Lead

Within the Information Technology Department, you will join a team of 12 engineers based in Geneva and collaborate with IT colleagues in more than 30 countries. Under the supervision of the IT Infrastructure Support Manager, you will lead a team of three network engineers.

You will combine people management with hands-on engineering, ensuring that EFG's business-critical systems remain secure, resilient, and always connected in a demanding private banking environment.

Main Responsibilities

1. Leadership & Management

• Lead, coach and develop a team of three network engineers, fostering a culture of accountability, collaboration and continuous improvement.
• Combine team leadership with hands-on technical work on complex incidents and projects.
• Oversee day-to-day network and proxy operations, including incident, problem and change management.
• Plan and coordinate network and proxy upgrades, migrations and lifecycle activities in alignment with business and security requirements.
• Manage escalations, ensuring timely resolution of major incidents and clear communication with stakeholders.
• Manage and review third-party providers and vendor contracts, ensuring service quality, cost effectiveness and adherence to SLAs.
• Ensure compliance with internal policies as well as regulatory, security and audit requirements relevant to network and security infrastructure.

2. Proxy / Secure Web Gateway (Zscaler)

• Collaborate closely with security teams to define, implement and maintain security policies, including URL filtering, cloud application and file filtering, DLP and access control.
• Configure, operate and maintain Zscaler solutions (ZIA, ZPA) and related components such as SIPA, cloud firewall, PAC files, NSS, ZCC...
• Manage corporate devices using Zscaler Client Connector (ZCC), ensuring secure and reliable connectivity.
• Troubleshoot and resolve Zscaler-related issues by analysing logs, performing traces and applying appropriate corrective actions.
• Analyse network packet traces (PCAP), Fiddler logs and HTTP/HTTPS headers to identify and resolve complex connectivity and performance issues.
• Proactively suggest and implement improvements to network and proxy performance, capacity, scalability and security posture.

3. Network Engineering & Operations

• Provide 2nd and 3rd level technical support for network and related services.
• Configure, install and maintain network devices and services (e.g. routers, switches, firewalls, load balancers, VPN, QoS).
• Support and maintain network connectivity for financial market data feeds and other latency-sensitive services.
• Implement and maintain a continuous improvement process by defining, documenting and enforcing network and proxy standards, procedures and best practices.
• Interface with external suppliers and partners (integrators, telecom providers, market data vendors, etc.) to design, implement and support network solutions.
• Participate in 24x7 on-call / on-duty rotation (piquet) to support critical infrastructure.
• Monitor network and proxy performance, ensuring system availability, reliability and security.
• Monitor system resource utilisation, trends and capacity, and plan upgrades or optimisations accordingly.

Background

• 6-10 years of experience in networking in complex, international environments.
• Strong knowledge of enterprise networking architecture and network security.
• Professional experience with Cisco technologies and Cisco ACI; financial services experience is a plus.

Technical Skills

• Expert in LAN/WAN/MAN implementation and troubleshooting.
• Strong experience with firewalls (Fortinet and/or Check Point), VPN, IPSec and GRE tunnels.
• Proven expertise with Zscaler ZIA/ZPA and ZCC on corporate devices.
• Solid understanding of network and cloud connectivity design.
• Ability to analyse network traces (PCAP), Fiddler logs and HTTP/HTTPS headers.
• Knowledge of Python or another scripting language for automation; Zscaler certification is a plus.

Soft Skills & Languages

• Strong communication skills; able to work effectively with technical and non-technical stakeholders.
• Experience managing third-party providers and internal support teams.
• Rigorous, autonomous, proactive and service-oriented, with strong documentation skills.
• Fluent in French and English, written and spoken.

EFG International is a global private banking group, offering private banking and asset management services. We serve clients in over 40 locations worldwide. EFG International offers a stimulating and dynamic work environment and strives to be an employer of choice. EFG is committed to providing an equitable and inclusive working environment that is founded on the principle of mutual respect. Joining our team means experiencing a supportive environment, where your contributions are valued and recognised. We strongly believe that the diversity of our teams gives us a competitive advantage by fostering better decision-making and greater innovation. Our Purpose and Mission Empowering entrepreneurial minds to create value - today and for the future. We are a private bank, offering personalised solutions on a global scale to private and institutional clients. Our sustainable success is based on our talents and on how we partner with our clients and communities to create lasting value.