The 4th IEEE Nigeria Section International Conference (NIGERCON 2022) will be held in Abuja, Nigeria, from April 5th-7th, 2022. The theme of the Conference is Disruptive technologies for Sustainable development. The Conference aims to bring researchers, academicians, scientists, Industry experts/practitioners, government agencies, and students together to participate and showcase the results of their current research findings. Only original technical articles (empirical, practical, and theoretical) will be considered under the following sub-themes: Smart Devices, Materials and Processing, Engineering Education, Humanitarian Activities, Communication, Power and Energy/ Energy & Sustainable Technologies, ICT, and Embedded technologies (Smart City, IoT, Cloud, etc), Cyber Security & AI Computing Technologies, Engineering in Medicine and related fields.