Prof. Aghamelu currently has over 110 academic outputs (journal articles, books, book chapters, technical reports, etc.) to his credit and has also presented scientific and technical papers in professional conferences and workshops within and outside Nigeria. He served in the editorial technical committee of the XIII International Association for Engineering Geology and the Environment (IAEG) Congress held in San Francisco, California. Okechukwu is a former Senior Research Advisor to the Environmental Compliance Monitoring Team of the SPDC, Port Harcourt. He consults for many construction companies within and outside southeastern Nigeria and has published widely on construction site characterization, materials and aggregates assessment, groundwater and geotechnical problems, as well as geohazards monitoring. He served as the Pavement/Material Engineer at Enviplan Consultants Ltd, Kaduna, on the AfDB and the Islamic Bank-funded Abakaliki Ring Road Project of the Ebonyi State Government. He is a Fellow of the Nigerian Mining and Geosciences Society (NMGS), a Fellow and National Treasurer of the Nigerian Association for Engineering Geology and the Environment (NAEGE), a corporate member of the International Association for Engineering Geology and the Environment (IAEG), and a Council of the Nigerian Mining Engineers and Geoscientists (COMEG) Registered Geoscientist. He was the pioneer Chairman of NAEGE Enugu Chapter. He was also a pioneer member of the Young Engineering Geologists (YEG) of the IAEG International Board, representing African Region.

Okechukwu has successfully supervised seven M.Sc. students and is currently supervising five Ph.D. candidates in Engineering Geology. He served on or chaired various University committees in EBSU and AEFUAI, such as Postgraduate Committee, Senate Committee on Examination Malpractice, and Quality Assurance Committee. Prof. Aghamelu received the Melle Kolo Kyari (former GMD NNPCL) prize as the 2nd overall best in the 2020 COMEG Professional examination. In September 2023, he was awarded the first Nigerian Engineering Geologist of the Year by NAEGE Council. He is the current Chairman of the Train-the-Trainer Committee of NAEGE. He serves on the editorial boards or as a reviewer for many international and local reputable SpringerNature and Elsevier journals, such as Bulletin of Engineering and the Environment, Journal of African Earth Sciences, Environmental Monitoring and Assessment, Arabian Journal of Geosciences, Journal of Engineering Geology and Environmental Research, etc. He has received special acknowledgements for his roles on those boards. He is also a recipient of the IAEG conference Travel grant for the IAEG/AEG 2018 Conference in San Francisco, California, TETFund research grants, and many other grants, awards and recognitions. He is a member of the Geodynamics Thematic Working Group, UNESCO International Geoscience and Geosparks Programme, Nigeria National Committee. Okechukwu is a Paul Harris Fellow and Past Assistant Governor of Zone 12, Rotary International District 9142, Nigeria. He enjoys listening to classical music and watching National Geographic channels. He is happily married with children.