Systems Administrator in London

Voleon is a technology company that applies state-of-the-art AI and machine learning techniques to real-world problems in finance. For nearly two decades, we have led our industry and worked at the frontier of applying AI/ML to investment management. We have become a multibillion-dollar asset manager, and we have ambitious goals for the future.

Voleon is looking for a Systems Administrator to join our Corporate IT Services (Corp-ITS) team and play a critical role in the operation, support, and continuous improvement of our enterprise IT infrastructure. This position emphasizes platform operations, endpoint management, and technical support, while also building automation and tooling to streamline IT service delivery across the organization.

In this role, you will be directly involved in supporting the firm's software engineering, quantitative research, and financial operations teams. You will balance day-to-day operational excellence with hands-on user support, serving as an escalation resource and coach for the End User Support team while helping to drive efficiency through automation in a fast-paced, high-performance environment. This is a hybrid role based in our London, UK office.

Responsibilities

• Manage SaaS platforms (Microsoft 365/Entra ID, Slack, Zoom) including user administration, provisioning, and license management.
• Provide technical support and escalation for the End User Support team. Resolve complex issues, assist with challenging requests, and coach service desk engineers.
• Own employee technology lifecycle including provisioning workflows, hardware inventory, device refresh programs, and secure offboarding.
• Maintain IT infrastructure including backup systems, server operations, and network services in partnership with Engineering.
• Administer endpoint management platforms (Jamf Pro, Intune) including policies, software deployment, security enforcement, and fleet updates.
• Build automation and tooling using scripting (PowerShell, Python, Bash) to streamline operations and reduce manual work.
• Create operational documentation (runbooks, standards, guides). Partner with Engineering on infrastructure projects.

Requirements

• Computer Science Degree, or equivalent experience.
• Demonstrated history of management of large engineering teams (25+ engineers).
• 10+ years software engineering experience and 3+ years people management experience.
• Experience leading and developing both managers and individual contributors.
• Proven ability to hire and manage exceptional engineers and technical managers.
• Experience operating critical production systems with high-uptime requirements.
• Experience deploying ML models to production via serving or batch contexts.
• Knowledge of best practices for robust, high-availability design.
• Ability to understand key details of technically complex systems.

The Voleon Group is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.