Engineer and former educator

    • (14)
    • 185
    • (17)
    • 144
    • (28)
    • 316
    • (43)
    • 464
    • (29)
    • 245
    • (13)
    • 156
    • (40)
    • 419
    • (57)
    • 685
    • (41)
    • 811