Professional, discreet on-site IT support for Oak Brook offices, law firms, and financial and professional-services firms. Senior-level work for clients who expect it done right.
Oak Brook is corporate-office and professional-services country — law firms, financial advisors, consultancies, and regional headquarters clustered around the Oakbrook Center and the I-88 corridor. These are environments where discretion, reliability, and a professional on-site presence matter as much as technical skill. A technician in a branded polo who needs supervision doesn't fit a partner-track law firm; a senior engineer in business attire who just handles it does.
I provide exactly that: Microsoft 365 and Entra ID administration, secure endpoint and identity work, network and firewall support, and clean onboarding and offboarding — the kind of well-documented, audit-aware IT that professional firms need. For offices weighing whether to build a proper ticketing and asset-management system, I also implement ManageEngine ServiceDesk Plus and Freshservice end to end.
When you call a dispatch network, you pay a platform margin and whoever is nearest gets the ticket. With IT-OnCall you get the same senior, ITIL-certified engineer every visit — someone who learns your setup and is accountable from the first call to sign-off. No phone trees, no re-explaining your environment to a new face each time.
2-hour minimum on standard visits. Rates may vary by scope, distance, urgency, duration and contract volume. See full rate sheet →
Delivered personally by Mohammed Shaltoni — a 15+ year IT operations engineer, ITIL-certified, with a B.Sc. in Computer Science. Background includes running multi-site service desks for 1,400+ users across 26 locations and 400+ completed work orders.
Yes. I arrive in business attire, work with minimal disruption, and am mindful of confidentiality — a fit for law firms, financial offices, and professional-services firms in Oak Brook.
Yes — Microsoft 365, Entra ID, endpoint and identity management, and documented, audit-aware practices that professional firms need.
Yes. I implement ManageEngine ServiceDesk Plus and Freshservice end to end if your office wants proper ticketing, SLAs, and asset tracking.
Tell me the location, the issue, and when you need someone there — I confirm fast, usually the same day. On-site across Illinois, nationwide by arrangement.
