A professional who plans, lays out, constructs, modifies, tests, and maintains laboratory test equipment and related structural assemblies used to test experimental aircraft and space vehicle parts and assemblies, using precision instruments, handtools, power tools, and shop equipment. Responsibilities include:

• Reads and interprets blueprints, engineering drawings, and sketches, or receives verbal instructions, to determine methods and sequence of operations to lay out and construct mechanical, electrical, electronic, pneumatic, or hydraulic test equipment and related structures.
• Lays out and fabricates parts from assorted materials, such as aluminum, steel, wood, plastic, and graphite composites, using measuring instruments and shop equipment, such as saws, shears, drill presses, lathes, and routers.
• Fits, aligns, and assembles parts, equipment, specialised test devices, and structural framework to build test units, using precision measuring instruments, such as transit and level, power tools, rivets, bolts, clamps, pins, and other fasteners.
• Installs, or assists other workers in installing, test specimens in test equipment, using hoist, overhead crane, or related equipment.
• Assists engineers in operating test equipment to obtain research data on performance of experimental parts and assemblies under varying operational conditions.
• Diagnoses test equipment malfunctions and services and repairs equipment as required.
• May repair test specimens damaged during testing to prepare item for retesting.
• May specialise in constructing mechanical, electrical, electronic, pneumatic, hydraulic, or structural test equipment.