Dr. Aja is a Chartered Engineer registered with the Engineering Council of United Kingdom and the Engineers Australia. He holds Professional Memberships with the Institution of Mechanical Engineers, IMechE, Institution of Engineers Australia, IEAust, Board of Engineers Malaysia (BEM), Association of Professional Engineers and Geoscientists of Saskatchewan, Canada (APEGS), American Society of Mechanical Engineers (ASME), International Solar Energy Society (ISES), Society of Petroleum Engineers (SPE), and Institute of Electrical & Electronic Engineers (IEEE). Aja has 6-year experiences as project manager with ROKNET KONSULT, 5-year experiences as tutor in Universiti Teknologi PETRONAS, 12-year experience as a researcher including working as Postdoctoral Researcher for 1 year. He joined the Department of Mechanical Engineering, Curtin University, Malaysia as a Lecturer in August 2015 and served in same position till November 2017. Aja was promoted on December 2017 where he is currently serving in the Senior Lecturer position in the Department of Mechanical Engineering. He is also currently the Postgraduate Program Coordinator in Curtin University. He is a reviewer to over 10 journals of repute. Dr. Aja has passion for sustainable environment and development, optimal resource management processes, energy conservation and management, and excellence in learning and teaching. He engages in professional development and employs his expertise in the development of new concept while keeping to the engineering professional ethic. He is vast in research with major focus on renewable energy, waste management, and flow assurance. With his passion for sustainable development and environment, his research focus includes performance enhancement of renewable energy systems, reduction of waste from engineering process and procedures, environmental management and sustainable project management aimed at strategies for time and budget control.