Information Technology Support Specialist

Company: SISL Global
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Location: London
Job Description:

We are looking for an experienced Desktop Support Engineer (Band 3) who can provide advanced technical support, handle escalated incidents, and ensure smooth functioning of end-user systems across the organization.

Key Responsibilities

  • Provide Level 2 & 3 support for desktops, laptops, OS, and enterprise applications.
  • Handle escalations from L1 and L2 teams and resolve complex technical issues.
  • Manage patch updates, endpoint security, and compliance checks.
  • Support users with network connectivity, VPN, printers, and hardware issues.
  • Coordinate with infrastructure/security teams for problem resolution.
  • Maintain accurate documentation of incidents, solutions, and preventive actions.
  • Participate in IT audits and ensure compliance with company standards.

Required Skills :

Systems: Windows 10/11, Windows Server 2003-2019, Ubuntu Linux, Mac OS, VMWare, Hyper-V Networking: TCP/IP, IPAM, DHCP, DNS, SNMP, Wireshark, TCPDUMP, Observium, NetBox Security: Active Directory, LDAP/RADIUS, IPsec/SSL VPN, 2FA, Crowdstrike, ESET

Trading Apps experience Candidates will be preferred

Activ, AxeTrader, Bloomberg, Eikon, IB Trader Workstation, LiveVol Pro, MarketAxess, Matrix, Microhedge, RealTick, ROX, Sterling Trader/Manager, TradeWeb, Trumid

Skills & Qualifications

  • 3–5years of experience in Desktop/End-User Support.
  • Strong troubleshooting skills in Windows, macOS, O365, VPN, and hardware.
  • Hands-on experience with Active Directory, Group Policy, and patch management tools.
  • Knowledge of ITIL processes (Incident, Change, Problem Management).
  • Good communication and customer-handling skills.
  • Preferred: MCSA/MCSE, ITIL Foundation, CompTIA A+/N+.

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Posted: October 11th, 2026