Sandy Portobanco

•Assembled and integrated critical New Glenn (GS1) first-stage structural, fluid, harnessing, and propulsion components in strict adherence to detailed engineering blueprints, work instructions, and quality standards.

•Led root cause analysis (RCA) initiatives to address recurring integration challenges, implementing strategic solutions to mitigate future risks and improve assembly reliability.

•Partnered with engineering teams to troubleshoot production bottlenecks, providing direct feedback on design enhancements to streamline high-rate manufacturing.

•Operated precision calibrated tools, including torque wrenches and laser trackers, to ensure exact tolerances for flight-critical hardware.

•Executed process enhancements that reduced assembly time for complex components, directly supporting company-wide production goals.

Facilitated cross-functional collaboration between technicians and engineering to optimize assembly techniques, reducing errors and enhancing team productivity.

•Maintained meticulous 5S standards and safety protocols, promoting a proactive culture of safety within the assembly and integration workspace.

•Verified hardware compliance through second-party inspections, ensuring all assemblies met technical specifications before moving to the next production stage

•Executed final assembly and integration of Falcon 9 Stage 1, including Merlin engine installation and structural mating, ensuring 100% adherence to engineering specifications and safety protocols.

•Performed precision pneumatic and hydro-testing on flight-critical systems, consistently verifying structural integrity and leak-free operation of octaweb and propulsion systems.

•Streamlined integration workflows by collaborating with production engineers to update, document, and standardize procedures for complex rocket assembly.

•Operated and calibrated precision tools—including torque wrenches, micrometers, and calipers—to install delicate flight hardware while maintaining strict ESD compliance.

•Mentored junior technicians on best practices for avionics and mechanical integration, reducing onboarded training time and improving team efficiency.

•Managed inventory of hardware components, ensuring 100% availability of necessary resources for high-cadence launch schedules

•Diagnosed, repaired, and serviced Lexus and Toyota models to factory specifications, consistently maintaining a 95% first-time fix rate.

•Utilized TIS (Toyota Information System) and Techstream advanced diagnostics to troubleshoot complex electrical, hybrid, and mechanical issues, reducing diagnostic time.

•Performed precision suspension, steering, and alignment repairs using Hunter engineering equipment, enhancing vehicle handling and performance.

•Executed comprehensive multi-point inspections and routine maintenance (oil changes, brakes, fluid flushes) to ensure maximum safety and reliability for client vehicles.

•Translated complex technical diagnoses into clear, transparent repair plans for customers, resulting in a 90% increase in service authorization rates.

•Collaborated with shop team to optimize workflow, decreasing average service turnaround time.

•Mentored junior technicians on proper Toyota/Lexus maintenance procedures, enhancing team diagnostic skill levels and safety compliance.

•Supply Chain Management: Controlled the end-to-end supply chain—from requisition, procurement, and invoicing to final delivery—while maintaining 100% end-user satisfaction.

Inventory Accuracy: Managed inventory control for over 1,000 line items, conducting routine cycle counts to optimize stock levels, minimize waste, and resolve inventory discrepancies.

•Logistics Coordination: Coordinated shipboard logistics, ensuring timely delivery of mission-critical supplies, repair parts, and hazardous materials, resulting in zero operational delays.

•Documentation & Accuracy: Maintained detailed audit-ready records, organizing order documentation and Providing, consistent status updates to command leadership.

•Submarine Operations: Executed daily submarine duties, including [e.g., watch standing, damage control drills, or equipment maintenance] while supporting high-tempo underwater operations.