David Lizarraga Email & Phone Number

Lakewood, Ca, Us

Lakewood, Ca, Us

Brea, California, United States

- Performed comprehensive mechanical testing, including tensile, elongation, tear, brittleness and compression tests on aviation and aerospace materials to collect data and gain insight on material’s mechanical properties.- Conducted ash testing to determine inorganic residue content and fuel immersion testing to assess resistance to aviation fluids.

Los Alamitos, California, United States

- Reduced labor costs by 3% by analyzing live sale reports and adjusting employee’s schedule based on daily sales.- Drafted spreadsheets to manage inventory on a weekly basis.

San Pedro, California, United States

- Drafted conceptual designs and modeled cement torpedo anchors via Rhino 7 to optimize embedment efficiency. - Assisted in the maintenance and calibration of the 3D printer robotic arm. - Conducted research on offshore and land wind turbines, torpedo anchors, and other concrete additive manufacturing solutions. - Assisted in the overall cement 3D printing process.

Riverside, California, United States

- Supported in design layouts, duct sizing, and determining system size for commercial and residential buildings via trace 3D.- Aided in troubleshooting and repairing system malfunctions to maintain optimal operational levels utilizing multimeters, manifold gauge set, brazing and soldering equipment and other diagnostic tools.

Lakewood, California, United States

- Coached students on successful studying strategies/skills and time management.- Administered group tutoring sessions and reinforced basic concepts via zoom meetings and in person.

Long Beach, California, United States

- Operated Toro Lynx Central Control irrigation system to manage over 1,700 sprinkler heads.- Analyzed system reports to determine the capacity of the system in an effort to strategically schedule sprinkler heads, maintain a uniform distribution of the water, and prevent over-pressurizing the system. - Manually repaired and assembled sprinkler heads, flow control valves, in-ground moisture sensors, sprinkler solenoids, damaged wires and sprinkler manual control valves.