When supporting tasks that are Air Traffic Operations, Air Traffic Safety System, Air Traffic Management, Air Traffic Operations Training, Air Traffic Safety System Training, or Air Traffic Management Training, for the Senior and Senior with Special Certification Levels, any combination of degree, certification and relevant experience will be considered if the relevant experience requirement is satisfied (i.e. degree requirements will be waived for certified air traffic controllers). About CSSI: CSSI, LLC., has 30 years of experience working in complex, dynamic, safety critical systems supporting both government and commercial clients to address their toughest challenges, with efficient and low-risk solutions.