Experience operating and maintaining characterization equipment such as solar simulators / I-V testers, PL/EL imaging, lifetime testers, optical microscopes, SEM, ellipsometers, spectrophotometers, four-point probes, and related tools. To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.