Chemical engineering in inorganic chemistry. Research and development of technologies for small and medium chemical plants. Completed technology (from idea to finish produce line) of ferric sulfate coagulant (with oxygen), polyaluminium chloride coagulant (PAC 18, PAC 10). P&ID for producing of disinfectants and cleaners for poultry industries. Completed technology of dry herbal extracts. Development technology of per-acetic and per-sulfuric acids and sodium chlorite. Development technology of refining vanadium catalysts. Designing, supervising and construction of potable and wastewater treatment plants. Production manager of precious metal refining plant (Au, Ag, Pt, Pd). Head of production sunflower lecithin.