Windows Systems Administrator (12-month contract)Nomura • London, England, United Kingdom
This job offer is no longer available
Windows Systems Administrator (12-month contract)
Nomura
- London, England, United Kingdom
- London, England, United Kingdom
About
Windows Systems Administrator Role type:
Contract (12 months) Department:
Digital Workspace Group Location:
London (Hybrid)
Company overview
Nomura is a global financial services group with an integrated network spanning approximately 30 countries and regions. By connecting markets East & West, Nomura services the needs of individuals, institutions, corporates and governments through its three business divisions: Wealth Management, Investment Management, and Wholesale (Global Markets and Investment Banking). Founded in 1925, the firm is built on a tradition of disciplined entrepreneurship, serving clients with creative solutions and considered thought leadership. For further information about Nomura, visit www.nomura.com
Department Overview
Nomura is seeking a Windows Systems Administrator to join the Windows infrastructure sub‑group of our Global Digital Workspace team and contribute to infrastructure support for the Nomura Group affiliate company Instinet Incorporated.
The Digital Workspace team provides engineering, maintenance and support for Instinet’s Windows, Active Directory, and VMware systems, globally. This role is primarily focused on the team’s responsibilities involving server administration, Active Directory vulnerability patching, VMware infrastructure maintenance, and other infrastructure services while other team members are assigned to focus on first‑level support for the desktop environment.
Essential Role Duties and Responsibilities:
Active Directory vulnerability management
Review vulnerabilities and available remedies
Assess interoperability in a heterogeneous environment including legacy systems
Manage deployment risk through log analysis, reporting and available controls
Deploy, verify and support security patch and other vulnerability remediation tasks
VMware infrastructure support
Build, upgrade and patch VMware ESXi systems
Monitor and manage ESXi server capacity
Develop and maintain relevant documentation and runbooks
Collaborate across Digital Workspace and technology infrastructure teams to support work required to relocate Instinet infrastructure to new data centre locations.
General Windows Server Systems Administration & Support
Windows Server security patching
Capacity and configuration management
Installs, adds, changes and support
This position is focused on developing and supporting our global Windows Server infrastructure with a focus in Active Directory Management, VMware, Support Escalation and After Hours Change Implementation. In this role you will be responsible for developing, implementing and supporting technology solutions delivered to Instinet’s corporate users and production Windows environment in a global teamwork environment.
Minimum Technical Experience:
Active Directory Administration
Performing administrative tasks in a multi‑domain environment
User & Computer Administration
Group Policy management & troubleshooting
Experience managing AD Sites & Services
Working knowledge and understanding of DNS & DHCP
VMware
Experience building, upgrading and managing ESXi v7.0, 8.0 and vCenter
Experience managing VMware services and features including SRM, DRS and Update Manager
Performance monitoring and alerting
General Windows Server Systems Administration
Deployment, management & support for Windows Server 2012, 2019+ systems.
Windows Server patching
Technical support for issues escalated from internal support groups and development teams
Experience supporting a production environment, with change control procedures and after hours implementation
Experience using a service‑based ticketing system (e.g. Jira Service Desk, ServiceNow, etc.)
Windows File System Management (e.g. Access Control Lists, DFS, File Share Management)
Preferred Technical Experience:
Citrix XenDesktop / Citrix Virtual Apps & Desktops
Citrix Director
VDA installation, configuration and troubleshooting
Knowledge of Citrix NetScaler ADC and ADM
Office 365
Exchange Online administration
Mailbox creation & user management
SMTP header analysis and related messaging technologies
Experience administering a mobile messaging platform (e.g. Mobile Iron, Workspace ONE, etc.)
Troubleshooting mobile connectivity errors
Understanding of mobile messaging architecture
Job Knowledge, Qualifications & Education:
Previous experience in Systems Administration managing production Active Directory and VMware VCenter and ESX infrastructure, including support, deployment, maintenance, upgrades, monitoring and troubleshooting.
Experience supporting a production environment, including the use of change control procedures.
Excellent verbal and written communications skills, including the ability to listen actively, participate in group discussions and take accurate and thorough notes.
Strong attention to detail with a focus on quality and thoroughness.
Able to learn through new experiences and willing to ask for guidance or assistance when needed.
Technical certifications in Microsoft technologies, IT security and networking a plus.
Explore Insights & Vision
Identify the underlying causes of problems faced by you or your team and define a clear vision and direction for the future.
Making Strategic Decisions
Evaluate all the options for resolving the problems and effectively prioritize actions or recommendations.
Inspire team members through effective communication of ideas and motivate them to actively enhance productivity.
Elevate Organizational Capability
Engage proactively in professional development and enhance team productivity through the promotion of knowledge sharing.
Inclusion
Respect DEI, foster a culture of psychological safety in the workplace and cultivate a "Risk Culture" (Challenge, Escalate and Respect).
Nomura Diversity Statement
Nomura is committed to an employment policy of equal opportunities and is fundamentally opposed to any less favourable treatment accorded to existing or potential members of staff on the grounds of race, creed, colour, nationality, disability, marital status, pregnancy, gender or sexual orientation. If you require any assistance or reasonable adjustments due to a disability or long‑term health condition, please do not hesitate to contact us.
Nomura is an Equal Opportunity Employer
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Languages
- English
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