Experienced happiness and reported life contentment represent cardinal elements of subjective well-being (SWB). Achieving happiness and contentment with work and other domains, such as love, play, and community, constitute fundamental life goals. Career construction offers a developmental theory of vocational behavior and a career assessment and counseling model counselors can use to promote client SWB. As an intervention model, career construction assists individuals with using work to foster self-completion and derive meaning, satisfaction, and happiness as they design their lives. Career construction counseling promotes SWB because its aims are consistent with increasing both immediate life satisfaction and overall life contentment. The present analysis describes the basic principles and practice of career construction and explains the career style interview as an assessment and counseling method useful for assisting individuals to identify and pursue self-selected goals and projects, endeavors that contribute to SWB. (Contains 2 tables.)