Technical resources available on a fractionalized basis. Sendero will provide highly skilled technical resources in a flexible model that aligns with your unique business requirements. OnDemandIT can help you with scheduled and ad-hoc on-site support 1,2, or up to 5 days a week. Our customers leverage OnDemandIT to backfill employee vacations, provide supplemental support on a regularly scheduled basis, or for emergency backup needs. Help-desk, End-User Computing, Server, Voice and Network.