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Mechanical Systems Design Engineer

Seattle, WA
November 24, 2020

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Stephen Dela Cruz

Seattle, WA • 213-***-**** •


Team orientated mechanical engineer with a background in the aerospace industry. Has engineering skills from both the manufacturing and design phase of the product lifecycle. Experienced with mechanical system design, CAD modeling (CATIA V5, Solidworks), drafting per ASME Y14.5, requirements development, dynamic analysis (MATLAB/Simulink) and aerospace manufacturing processes. Looking to grow as an individual and professional engineer. Technical Skills

Microsoft Office MATLAB Solidworks CATIA V5 Machining Rational DOORS Inspection Xpert Easy 5 Enovia Valve Design MATHCAD GD&T Root Cause Analysis Hydraulic Systems Actuation Systems Professional Experience

The Boeing Company

Design Engineer, High Lift Systems April 2020 ~ July 2020

• Supported the design, manufacturing, and service of flight control and high lift control systems and components

• Mitigated production issues by responding to corrective action reports

• Investigated and proposed cost down ideas to leadership for 777-X high lift systems

• Acted as design authority for drawing update requests

• Performed tolerance analysis & stack-up within the 787 leading edge slat actuator which resulted in a design change The Boeing Company

Design Engineer, Primary Flight Controls January 2019 ~ March 2020

• Project lead for a new primary flight controls solenoid operated valve (SOV) specification control document (SCD) o Derived hydraulic and electrical requirements to ensure procured unit worked on all intended higher level assemblies

o Led requirement review board meetings with team to approve proposed SCD requirements within the engineering requirements repository (IBM Rational DOORs) o Devised a test plan for testing existing solenoid valves to develop a baseline of requirements o Drafted envelope drawing and authored specification control document defining performance requirements o Solicited supplier proposals by creating an RFP package in collaboration with supply chain

• Supported the 787 flaperon actuator re-design

o Utilized a range of lab equipment including but not limited to CMM and CT scans to gather dimensions and performance data to be used as base-line for new actuation components design o Utilized CATIA V5/Enovia to create as-built CAD models of components and develop a top level layout drawing for manufacturing cost evaluation

o Developed a BOM and part numbering scheme

o Supported development of the kinematic model and stiffness calculations

• Project lead for the 787 flaperon hold down check valve re-design o Developed dynamic analysis model using Easy5 to simulate valve performance to validate design requirements under simulated hydraulic scenarios

o Performed static analysis using MATHCAD for verification to design requirements o Supported a common valve design effort and reduced monthly overall production cost by 50%

$18,000/month $9,000/month from material procurement to final ATP testin

• Participated in a work rotation program at Boeing’s Portland, Oregon site o Gained an understanding in the design for manufacturing (DFM) techniques by shadowing manufacturing, liaison and quality engineers

o Introduced to various machines and manufacturing processes and created mock routers for hydraulic actuator components

o Witnessed the MRB process on shop floor and gained knowledge in managing non-conforming parts Tur-bo Jet Products Co. Inc.

Manufacturing Engineer January 2018 ~ December 2018

• Developed work instructions for production shop floor

• Collaborated with production, accounting, program management, quality, and final test lab

• Improved manufacturing method and cost by designing press tooling which allowed in-house manufacturing of metal washers vs. purchasing from an outside vendor

• Provided support for root cause and corrective actions assigned internally and externally from customers

• Participated in MRB activities by dispositioning parts for re-work, return-to-vendor, scrap, or use-as-is

• Reviewed engineering change requests (ECRs); verified and recorded disposition through change summary notices


• Prototyped and designed a pressure test manifold to fulfill customer’s drawing requirement of testing braze joint integrity @1500psi using a mil-spec oil

• Specialized in solenoid valves, relief valves, and coils Tur-bo Jet Products Co. Inc.

Quality Engineer June 2016 ~ January 2018

• Assisted in customer quality support

• Direct hands-on inspection of parts

• Collaborated with customer service, purchasing, production, engineering, shipping, and final inspection

• Created FAIRs (First Article Inspection Reports) in accordance to AS9102

• Presented FAIRs and product during customer source inspection

• Participated as a Honeywell Self-Release Representative (SRR)

• Generated inspection plans for final and in-process inspection utilizing Inspection Xpert software

• Devised final product material and process certification packages for customers

• Assisted initiating ICARs (Internal Corrective Action Report)

• Performed internal audits to AS9100/ISO9001 and construct audit reports

• Participated in MRB as quality representative

• Reviewed customer contracts and flowed down quality requirements into MRP system Education

University of California, Riverside - B.S. Mechanical Engineering

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