IT Officer (London, Zurich)

Important: Please only apply if you are able to work on-site at our Zurich or London office every working day. This is a fully office-based role, 80% capacity to begin with, with the potential to increase to 100%.

About G-20 Group

G-20 Group is a cross-asset trading firm headquartered in Switzerland, trading delta-one and derivatives markets globally. We combine startup agility with institutional-grade experience in proprietary trading, technology, and quantitative finance.

Role Overview

G-20 is seeking a proactive and detail-oriented IT Officer to support our global trading operations. Working in a fast-paced financial markets environment, you will be responsible for day-to-day IT support, systems administration, device management and IT security across our international offices.

This is a hands-on role suited to an early-career IT professional looking to develop their technical expertise and take ownership of core IT operations within a growing global trading firm.Our initial need is for a part-time officer (80%), with the potential to increase to 100% capacity.

Key Responsibilities

• IT Support: Provide first- and second-line technical support to employees in London, Zurich and other global locations, resolving hardware, software and connectivity issues.

• Device & Asset Management: Procure, configure, deploy, maintain and retire laptops, mobile devices and peripherals. Maintain accurate hardware inventories, software licences and SaaS subscriptions.

• User Administration: Manage user accounts, permissions and accessour cloud productivity and identity platforms.

• Onboarding & Offboarding: Coordinate IT setup for new joiners and ensure timely removal of access, recovery of equipment and deactivation of accounts for leavers.

• Endpoint Management: Administer devices through modern MDM tools, including enrolment, security policies, compliance monitoring and software updates.

• IT Security: Support security awareness initiatives, respond to reported phishing attempts and conduct regular user access and privileged account reviews.

• Compliance & Audit: Maintain IT records, change logs and supporting evidence for SOC 2, ISO 27001 and relevant regulatory audits, including VQF, FINMA and CIMA.

• Documentation & Process Improvement: Maintain IT documentation, support tickets and operational procedures, identifying opportunities to improve efficiency and automate routine tasks.

• 1+ years of experience in IT support, helpdesk or systems administration. Strong entry-level candidates with relevant technical certifications will also be considered.

• Hands-on experience administering Microsoft 365, Entra ID and Google Workspace.

• Experience with Microsoft Intune or another mobile device management (MDM) platform.

• Working knowledge of Windows and macOS operating systems.

• Understanding of core networking concepts, including DNS, DHCP, VPNs and Wi‑Fi.

• Strong organisational skills, attention to detail and a disciplined approach to documentation.

• Excellent written and verbal English communication skills, with a proactive, service-oriented mindset.

• Eligibility to work in the UK or Switzerland and willingness to undergo background screening.

Preferred / Desirable Experience

• Relevant certifications such as CompTIA A+, Network+, Security+, Microsoft MD-102 / MS-102 / SC-300 or Google Workspace Administrator.
• Experience supporting IT operations within financial services, fintech, trading or crypto/DeFi environments.
• Basic scripting skills in PowerShell, Bash or Python to automate routine IT processes.
• Basic familiarity with Linux and command-line tools.
• Familiarity with SOC 2, ISO 27001 or regulated IT environments.
• Familiarity with Apple Business Manager and Apple device management.

Location and Right to work:

This role will be based from our Zurich or Londonoffice with the expectation of the candidates being on-site. Only candidates who meet the requirements, live within commutable distance to Central Zurich/London and whopossessthepre-existingright to work inSwitzerland or the UK without requiring company sponsorshipneedapply.

Join G-20 and be a part of a team that is at the forefront offinancialmarkets, driving innovation and excellence in the sector.

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