Hybrid Network Setup for Office

I need an experienced network and internet engineer to set up a hybrid (wired and wireless) network for my office.

Key Requirements:
- Support over 250 devices
- Enable file sharing and collaboration
- Provide internet access for all devices
- suggest best device/s
- Support VoIP and video conferencing
- Physical visit New Delhi

Ideal Skills:
- Expertise in designing and implementing hybrid networks
- Experience with high-capacity network setups
- Knowledge of network security protocols
- Familiarity with VoIP and video conferencing technologies

Please provide relevant experience and approach.