Gary O' Sullivan
    Managing Director

    Gary is a Building Services Engineer with over 16 years project management and design experience in the biotech, pharmaceutical, industrial and commercial sectors. He has a proven track record in the design, coordination and management of mechanical, electrical, HVAC and Process projects. During his career Gary has worked on significant projects and with several blue-chip companies such as AbbVie, Alexion, Allergan, Alkermes, DB Schenker, Meissner Filtration Products, Medtronic, Mylan, Zoetis and Zimmer Biomet.

      Johnny Madden
      B. Eng
      Mechanical Project Manager

      A dedicated Mechanical Engineer with 16 years of work experience across sites located in Ireland and Middle East. Expertise in designing heating and cooling systems, supervising installation of AHU, cooling towers, generators, gas lines. Self-motivated, dynamic engineer with multi-disciplinary experience in project management, project planning, project budgeting and cost control.

        Colm McGee
        BSc. Eng, M.I. Eng, MSc. Eng, P.G.D.E.
        Mechanical Project Manager
        Mechanical Engineering graduate with 20 years industry experience in an engineering / construction discipline. The vast majority of this experience has been in the field of building services design, tendering, installation and contract / project management. Experienced in all elements of building services design and construction – Mechanical, Electrical, Plumbing and Fire Protection.
          Andrea Coen
          BSc. Arch
          BIM Manager
          Andrea joined OSENG in 2020 bringing 10 years of experience in design, detailing using BIM tools within the Semi-Conductor, Life Science and Commercial Industry. Her skills include the production of 2D to 6D Construction & MEP Models, the creation of Revit families, clash management, site surveys as well as production of drawings.
            Peter Tunney
            BSc Arch Tech
            BIM Technician

            A M&E Coordinator with over 7 years’ experience across Industrial and Commercial Sector as a designer and BIM Technician

              Gourav Joshi
              MSc SSE, B. Eng Elec
              Electrical Engineer

              An electrical engineer with over 9 years of experience in electrical engineering design, Installation. Adept with utilising Dialux for lighting design, Amtech software and AutoCAD packages.