12+ years experience in designing pressure vessels, storage tanks, and piping for various destinations and industries (beverage, dairy, sauces, food, chemistry).Calculation of construction and circumstantial preparation of drawings or 3D models for production or client.As well as, preparation of technical documentation (test protocols, NDT schedule, instructions...)Made projects for big companies such as GEA process engineering, SELO food technology, Unilever, GE Healthcare, Arla food, ABB, Pentair, Mondelez.6+ years (of total 12 years) experience in team lead. Mechanical egineers/ draftsmans mentoring and supervision.3+ years (of total 12 years) years experience as a Principal engineer in an R&D project. I have worked with new product development (road tanker/ tank trailer). Responsibilities in this role: The market needs research to create the required design. Subcomponents suppliers research, collaboration with KTU and LEI scientists, designing process, collaboration with manufacturing department, and close participation in the manufacturing process to follow and ensure that all requirements were fulfilled.Co-author in two research articles publications from R&D activities:1. Liesionis V., Navickas V. (2019). Study of road tanker - Semi Trailer Made of "Douplex" Steel. Proceedings of 23-rd International Conference "Transport Means 2019". 1445-1449.2. Lukoševičius V., Bazaras Ž., Liesionis V., Navickas V. (2020). Research of Road Tanker Semi-Trailer structure and Liquid Cargo Dynamics Interactions. Proceedings of 13-th International Scientific Conference "Intelligent Technologies in Logistics and Mechatronics Systems ITELMS"2020". 65-70.