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VIVitol

Global System Administrator(m/w/x)

Genf
Full-timeOn-siteSenior

Managing hybrid on-premises and Azure cloud infrastructure for a global energy trader. Microsoft Azure and M365 expertise required. Environment for full potential, diverse workforce.

Requirements

  • Several years Senior System Administrator experience in enterprise environment
  • Strong hands-on expertise
  • Microsoft Azure expertise
  • Microsoft Entra ID (Azure AD) expertise
  • Microsoft 365 / Office 365 expertise
  • Windows Server expertise
  • VMware / Vsphere expertise
  • Active Directory & ADFS expertise
  • DNS, DHCP expertise
  • Microsoft Exchange expertise
  • PKI and certificate management expertise
  • Proven experience with hybrid infrastructures
  • Solid understanding of identity, authentication, encryption, security principles
  • Experience with PowerShell and automation highly valued
  • Open-mindedness for multicultural, international environment
  • Reliability for operating and supporting critical systems
  • Flexibility and adaptability to changing priorities
  • English professional working proficiency
  • French working knowledge
  • Microsoft / Azure certifications
  • Experience in regulated environments
  • Familiarity with Swiss data protection and security standards
  • Experience supporting international or multi-site infrastructures

Tasks

  • Support and evolve hybrid on-premises and cloud infrastructure
  • Design and implement Windows Server environments
  • Maintain Windows Server environments (on-premises and cloud)
  • Administer and optimize Microsoft Azure infrastructure and services
  • Manage and support Microsoft 365 / Office 365
  • Administer Microsoft Entra ID (Azure AD)
  • Manage hybrid identity, synchronization, conditional access, and authentication policies
  • Maintain Active Directory, ADFS, DNS, and core identity services
  • Operate and maintain VMware virtualization platforms
  • Administer Microsoft Exchange environments
  • Manage Public Key Infrastructure (PKI)
  • Ensure certificate lifecycle management (TLS/SSL, authentication, encryption)
  • Ensure high availability, backup, disaster recovery, monitoring, and capacity planning
  • Troubleshoot complex infrastructure, identity, and authentication issues
  • Apply security best practices
  • Comply with Swiss and international compliance requirements
  • Participate in audits and risk assessments
  • Maintain clear technical documentation and operational procedures
  • Collaborate with internal IT teams and international stakeholders
  • Provide technical leadership and mentoring

Work Experience

  • approx. 4 - 6 years

Education

  • Vocational certificationOR
  • Bachelor's degreeOR
  • Master's degree

Languages

  • EnglishBusiness Fluent
  • FrenchBasic

Tools & Technologies

  • Microsoft Azure
  • Microsoft Entra ID (Azure AD)
  • Microsoft 365 / Office 365
  • Windows Server
  • VMware / Vsphere
  • Active Directory & ADFS
  • DNS
  • DHCP
  • Microsoft Exchange
  • PKI
  • PowerShell

Benefits

Startup Environment

  • Environment for full potential

Informal Culture

  • Diverse workforce
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of Vitol and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.

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