A background in safety equipment is helpful with knowledge in any of the following areas including but not limited to machine guarding, operation of equipment, consumer products, workplace safety, ladders, scaffolding, machinery, construction equipment and general safety issues. ARCCA, LLC, an ATS Family of Companies, is a growing national forensic, scientific, and engineering firm with six offices nationwide located in Penns Park, PA (suburban Philadelphia); Pittsburgh, PA; Chicago, IL; Hollywood, FL; Oakland, CA; and Seattle, WA.