Senior IT Systems Administrator

Vitol is a leader in energy and commodities. Vitol produces, manages and delivers energy and commodities, including metals, to consumers and industry worldwide. In addition to its primary business, trading, Vitol is invested in infrastructure globally, with $13+billion invested in long-term assets.

Vitol’s customers include national oil companies, multinationals, leading industrial companies and utilities. Founded in Rotterdam in 1966, today Vitol serves its customers from some 40 offices worldwide. Revenues in 2024 were over $330bn.

Find out more at vitol.com. 

• Hands-on, multi-tasking role covering the full lifecycle of predominantly Windows Server environments: installation, upgrades, configuration, administration, and ongoing maintenance.
• Lead local and remote office projects end-to-end, from initiation through delivery and handover.
• Support and maintain bespoke trading application infrastructure: provisioning, patching, upgrading, and environment management.
• Manage vendors and service providers, coordinating effectively with internal business and technology teams.
• Provide coverage during core hours, with an expectation of additional out-of-hours support as required, including occasional weekend work.
• Business-as-usual (BAU) 3rd line support, with flexibility to deliver 1st and 2nd line support depending on team structure and operational demand.
• Occasional travel to remote office locations may be required.

• 8+ years’ experience in a comparable systems/IT infrastructure role.
• BSc in Computer Engineering (or related discipline) and/or current relevant IT certifications.
• Strong Windows Server administration skills (Windows Server 2016+); Server Core experience is an advantage.
• Strong VMware ESXi and vCenter administration experience (v7.0+), including managing and executing upgrade cycles.
• Hands-on expertise with Veeam backup solutions.
• Solid administration of Active Directory Domain Services, including DNS, DHCP, and Group Policy.
• SQL Server installation, configuration, and administration.
• Experience with Centreon monitoring.
• Strong Citrix experience: XenApp & XenDesktop 7.x, NetScaler ADC, Citrix Studio/Director; Citrix DaaS is a plus.
• Good working knowledge of Exchange Server 2016+, including mailbox administration, retention policies, message troubleshooting, and SMTP relay configuration.
• Experience with NetApp storage (FAS and E-Series), including NFS/CIFS protocols.
• Ability to improve team efficiency by automating repetitive tasks (e.g., PowerShell, Python, Power BI)—a plus.
• Experience managing the Microsoft patching lifecycle, deploying server patches via SCCM; strong SCCM knowledge preferred.
• Broad understanding of global network topology (e.g., DMZ, load balancing, firewalls, VLANs).
• Practical data center experience (hardware racking, cabling/patching, HPE iLO configuration).
• Familiarity with Microsoft 365 services, including Azure AD.
• Nutanix knowledge is advantageous.

Personal Competences:

• Strong user/customer focus, committed to delivering a great support experience.
• Highly responsive, energetic, and enthusiastic, with a proactive approach.
• Flexible availability, willing to work extended hours when needed, with a 24/7 support mindset.
• Demonstrates sound judgment and excellent attention to detail.
• Excellent communication skills, both written and verbal, with the ability to engage stakeholders clearly.
• Solutions- and results-driven, able to troubleshoot pragmatically and deliver outcomes.
• Structured, rigorous, and methodical in execution and documentation.
• Comfortable working independently as well as collaboratively within a team.
• A genuine team player with an open, non-political style and high personal integrity.

What We Offer

• A role at the centre of the company business with new challenges daily
• An international company with offices in Singapore, London, Geneva, Houston and the possibility to work abroad
• A flat and approachable organization
• An excellent working atmosphere: Friday drinks and regular office socials
• A competitive compensation and benefits package (bonus, pension & insurance)
• Bespoke in-house training focused on developing skills and substantive knowledge with scope for external training where needed and appropriate