1 to 25 of 219 Permanent Windows Jobs in Central London

Job Title: Windows Application Support Engineer – Windows COTS & Integrations Location: Canary Wharf, UK Department: Application Platform Operations/Application Services Purpose of the Role : To ensure the reliable operation, maintenance, and upgrade of Windows-based COTS software, as well as to manage integrations with identity/authentication systems (e.g. Okta), IIS web servers, and supporting scripting to … Application Support/Platform Operations team, ensuring minimal downtime, rapid resolution of defects, continuous improvement, and adherence to internal, regulatory, and security standards. Key Responsibilities: Support, maintain, and upgrade Windows-hosted COTS applications in production, UAT, development environments; coordinate patching, version upgrades, vendor interactions. Manage integrations with identity and access management platforms (Okta or similar), including Single Sign-On … Experience with CI/CD and automation tools for deployment and release. Experience working in highly regulated/risk-sensitive environments (financial markets, compliance, audit). Relevant certifications (Microsoft Windows/Windows Server certs; IAM/Okta; ITIL). Personal Attributes: Excellent problem solver; able to work calmly under pressure and manage/prioritize multiple issues. Strong communication More ❯

with hardware setup, office technology needs, and light infrastructure tasks Contribute to improvement work, small projects, and ongoing operational enhancements Core Technologies Microsoft 365 (Teams, Exchange Online, SharePoint, OneDrive) Windows 10/11, Active Directory, Azure AD/Entra ID Intune/Endpoint Manager for device and policy management PowerShell for task automation Networking fundamentals (VPN, DHCP, DNS) Requirements More ❯

relevant experience. Experience: Progressive experience providing high-level deskside, field, or end-user support in a corporate environment. Technical Skills: Expert proficiency in troubleshooting and managing large fleets of Windows (10/11) and macOS endpoints. Proven experience administering and leveraging a major endpoint management tool (SCCM, Intune, or JAMF). Advanced scripting skills (e.g., PowerShell or Python) for More ❯

Incidents , including Root Cause Analysis (RCA) and Reason for Outage (RFO) reports Azure Active Directory (Identity, MFA, Conditional Access) Microsoft 365 administration and support Microsoft Active Directory, Exchange, AOVPN, Windows Server OS Intune, Endpoint Management, MDM solutions Scripting with PowerShell Knowledge of File System Technologies Strong understanding of core domain services: DNS, DHCP, VPN More ❯

all aspects of IT service delivery. What We’re Looking For Experience working in an IT service environment delivering front-line support. Strong technical knowledge of desktop support, including Windows 10 and related hardware. Understanding of Microsoft Server environments (2016+). Familiarity with Active Directory, Group Policy, DHCP, DNS, and system administration. Experience supporting Microsoft 365, Azure, and Office More ❯

Impact Projects: Work on cutting-edge projects in secure cloud adoption and Zero Trust Security across a range of customers with complex environments across the Mac, IOS, Android and Windows technologies. Collaborative Environment: Be part of a talented, driven team where your expertise is highly valued. Professional Growth: Gain exposure to the latest tools and solutions in endpoint management More ❯

firewalls Own platform documentation and operational best practice Troubleshoot complex incidents and enable engineering teams Required Experience 5+ years in infrastructure engineering or systems engineering Strong Microsoft environment expertise: Windows Server, AD/Entra ID, Group Policy, O365, Intune Solid networking foundations: TCP/IP, VLANs, DNS, VPNs, Wi-Fi Security engineering knowledge: System hardening, endpoint security, SIEM, incident More ❯

or IT Applications & Development, or external supplier support. Deputise for the senior IT Support Specialist/Lead during absences. Qualifications & Experience: MS Office 365 Suite (Outlook, Word, Excel, PowerPoint) Windows 10 Mobile Devices – iOS & Android Active Directory Users & Computers/Azure AD Basic understanding of networks (LAN, WAN, WAP, Cloud, IP) Desirable: Microsoft Exchange Administration Centre Microsoft 365 Admin More ❯

software, and AV/VC technologies. Manage incidents and requests via ServiceNow. Experience Required: 5+ years’ experience in enterprise IT support, ideally within buy side finance. Strong knowledge of Windows 10/11, Office 365, Azure/Intune, Active Directory, Citrix, VMware. Experience with Bloomberg, Reuters, Cisco telephony, and video conferencing tools. Excellent communication skills, with proven ability to More ❯

projects (server migrations, virtualisation, Azure, network upgrades). Work directly with clients to understand requirements and deliver tailored solutions. Maintain documentation and contribute to improving technical processes. Technical Requirements Windows Server, Active Directory, DNS, DHCP, Group Policy. Virtualisation (Hyper-V and/or VMware). Microsoft Azure (Azure AD, VMs, Storage, Security). Networking fundamentals: VLANs, subnetting, VPNs, routing More ❯

an on call weekly rotation shared across the Support and Operations teams. Experience/Qualifications Essential requirements Demonstrable knowledge and experience in 3 or more of the following: Microsoft Windows Server Microsoft SQL Server Networking (Load balancing, Firewalls, TCP/IP) Linux (Debian or RHEL) Telephony/UC (SIP, ACD, VOIP) Active Directory (ADFS, domain management, users/groups More ❯

or equivalent experience). Experience: 2+ years of experience in IT support, desktop support, or help desk roles, with a focus on troubleshooting and escalation. Technical Skills: Proficiency in Windows and macOS operating systems. Strong knowledge of Microsoft 365, Active Directory, Group Policy, and Exchange. Experience troubleshooting and configuring network components such as DNS, DHCP, TCP/IP, and More ❯

Integrity, professionalism, and ethical conduct in all interactions Resilience and adaptability in the face of change A collaborative mindset, supporting others to deliver shared outcomes Essential Skills Proficiency in: Windows OS (installation/troubleshooting) Active Directory, Azure/Office365/SharePoint Networking protocols: OSI model, TCP/IP, HTTP/HTTPS, SMTP, SNMP Security: Firewalls, proxies, SIEMs, disk encryption More ❯

deploys and supports physical and virtual computers and network equipment Assist in planning projects and participate in managing small initiatives Coordinate with IT Infrastructure, support team change/maintenance windows for infrastructure systems Performs routine software upgrades on network infrastructure to patch vulnerabilities Qualifications: 5+ years of relevant experience Monitors, troubleshoots, diagnoses, and resolve infrastructure issues Experience with Microsoft More ❯

and help maintain a high standard of service across the IT infrastructure. Key Responsibilities Resolve Service Desk tickets within SLA targets, ensuring excellent customer service. Provide expert support for Windows 10/11 , Office 365 , and a range of desktop and mobile applications. Escalate complex issues to internal teams or third-party providers. Create technical documentation and user guides. More ❯

environments. Strong knowledge of Microsoft technologies (Azure, Microsoft 365, SharePoint, Intune/Entra) with a focus on security configuration, hardening and monitoring. In-depth understanding of networking, firewalls, VPNs, Windows Server, Active Directory and hybrid cloud security architectures. Hands-on experience with endpoint protection, EDR/MDR/XDR platforms, email security, RMM tools, and centralised monitoring systems. Familiarity More ❯

resilience programmes. The ideal candidate will have a background in IT support or infrastructure engineering within a financial or professional services environment. You’ll bring hands-on experience across Windows Server, Microsoft 365, and Azure, along with foundational knowledge of AWS, networking, and DevOps tools. Familiarity with Terraform, PowerShell, and Azure DevOps pipelines is highly desirable, as is a More ❯

Apply OS updates, security patches, and manage endpoint vulnerability remediation. Assist in software packaging and deployments. Support network connectivity, Wi-Fi troubleshooting, and conference room technology. Technical Skills Strong Windows/macOS troubleshooting skills. Familiar with Active Directory, Intune, SCCM, and Exchange Online. Knowledge of networking (LAN, Wi-Fi, VPN, Cisco Meraki). Experience in supporting AV/VC More ❯

Skills & experience required Proven experience in a 2nd line IT support role. Experience of setting up new user accounts, configuring hardware and software, managing permissions. Familiarity with server technologies (Windows Server, Active Directory, virtualisation, backups) is highly desirable. Good understanding of networking fundamentals, user access and security best practice. Ability to diagnose and fix technical issues independently and proactively. More ❯

strategies. Maintain detailed incident records and conduct post-incident reviews. Technical Skills Hands-on experience with SIEM, EDR, IDS/IPS, and SOAR platforms. Strong knowledge of operating systems (Windows, Linux), network protocols, and packet analysis tools. Familiarity with scripting languages (Python, Bash, PowerShell). Experience with cloud security monitoring (AWS, Azure, GCP). Knowledge of frameworks such as More ❯

strategies. Maintain detailed incident records and conduct post-incident reviews. Technical Skills Hands-on experience with SIEM, EDR, IDS/IPS, and SOAR platforms. Strong knowledge of operating systems (Windows, Linux), network protocols, and packet analysis tools. Familiarity with scripting languages (Python, Bash, PowerShell). Experience with cloud security monitoring (AWS, Azure, GCP). Knowledge of frameworks such as More ❯

MSP (IT Managed Services) organisation AZ-900 and MS-900 certifications preferred IT knowledge and experience of: Active Directory & Group Policy management Mac OSX Microsoft Azure Microsoft Office Microsoft Windows PC & Server O365 Switches, routers & firewalls, TCP/IP & network troubleshooting VPN’s Exceptional client support skills with a desire to provide an excellent client experience. Confident personality with More ❯

a 3rd Line/Senior Engineer role within an MSP environment Strong knowledge of Microsoft technologies, including Azure, 365, SharePoint, and Intune Excellent understanding of networking, firewalls, VPNs, and Windows Server environments Experience with RMM tools, security platforms, and endpoint management Familiarity with tools and platforms such as Mimecast, Avanan, SentinelOne, MDR/XDR, Fortinet, Huntress, Datto, and Autotask More ❯

traders or trading desks in a live market environment Familiarity with trading floor technologies such as trading platforms, market data systems, and low-latency or voice recording setups Strong Windows administration skills and experience with Microsoft 365 and Azure Excellent communication and interpersonal skills, with the ability to remain calm and effective under pressure Proactive problem solver with strong More ❯

a wide range of technologies, contribute to strategic projects, and make an immediate impact within a high-performing team. The ideal candidate should have strong experience with Microsoft technologies (Windows 10/11, Intune, Active Directory, Exchange Online), Azure advanced services (Functions, Logic Apps, Automation, Networking), scripting and automation (PowerShell, Python, or Bash), and infrastructure-as-code (Terraform). More ❯