Vocational interventions for criminal justice populations have existed for years in various forms, but have traditionally not used an interdisciplinary approach and have shown significant limitations in effectiveness. This article informs scholars and practitioners of interdisciplinary research on vocational interventions and how knowledge from criminal justice literature and career theory can be combined so that relevant and effective theory-based vocational interventions for offenders and ex-offenders can be developed. Such an integrative approach would address the limitations of existing approaches and would foster the development of vocational interventions that go beyond what is offered currently. A model summarizing this integrative approach is provided. This article concludes by presenting understudied areas in offender career development, such as offenders’ willingness to work, illegal employment as a form of work, and the implications of a criminal record on career development. Continued research in these areas can promote effective rehabilitative efforts that meet the vocational needs of this marginalized population.