There is no public information linking anyone named “Ian Mathew” (or similar variants) to a prominent role at Tesla, Inc. among its leadership or notable teams. The co-founders and major early executives—such as Martin Eberhard, Marc Tarpenning, Ian Wright, Elon Musk, and J.B. Straubel—are well documented, but none named Ian Mathew appears in these ranks[1].
If you were referring to Tesla’s senior environmental health and safety leader, the closest match is Ian Langtry, who has been serving as Senior Director of Environmental Health & Safety at Tesla since February 2015[4]. However, there are no records of an “Ian Mathew” in this position or in Tesla’s executive or engineering history in the available sources.
If you need information about a different individual or a clarification on a different Tesla employee, please provide additional details.