He is currently an International Independent Consultant providing consultancy services on various fields of Corrosion Engineering to international companies such as Alstrom, Lurgi, Siemens, Uhde, Krupp, Belchatow, Pertamina Oil Industries, US Continental Oil Company, Veba Gelsenkirchen, Eon, Steag, Nerefco, BP, Scholven, Horst, PDOC, OVL and many other companies all over Europe, the USA, Middle East, Asia, Africa and South America .

As an International Corrosion Consultant, Mr. Dziewas was able to work with his international clients on identifying resulting problems of corrosion protection, conduct training programs on corrosion engineering for corrosion protection, Treatment for application, preparation & maintenance of coating systems, training of technical managers for corrosion protection, provided international certifications & development of coating specifications for new corrosion systems, coating inspections to minimize corrosion and monitoring the effects of corrosion control . As a certified NACE Inspector & Representative, Mr. Dziewas provided job training & coaching to his clients which includes being Advisor for corrosion protection and providing technical assistance to governments. He is also an Instructor of Coating Inspector Training & Certification ( CITCP ) and an Advisor of Indocor Corrosion Protection .

During his career life, Mr. Dziewas worked as Technical Advisor, Director, Plant Manager, Project Manager, Corrosion Engineer and Chief Engineer to various oil & gas companies ( both onshore & offshore ), petrochemical, petroleum, chemical, water treatment & seawater desalination, power plants and pipe & steel industries worldwide . During these periods, Mr. Dziewas has garnered valuable experience in surface protection, coating, rubber lining and injection systems .