The aim of this thesis was concentrated around the examination of the ergonomic aspect of working conditions provided to the engineers at the construction site, assessment of their quality of living, psychosocial factors influencing them and establishment of the impact of working conditions on the quality of life.The thesis is composed of the analytical and empiric parts. The analytical part examines the working conditions and the factors that influence the quality of life. The empiric part is based on the survey and contains the assessment of the ergonomic aspect of working conditions provided to the engineers at the construction site, their quality of life, health disorders and psychosocial factors.Conclusions and recommendations are made on the basis of the analysis of the research conducted in the spheres of ergonomics, safety and health.