Andrew O'Sullivan

(314) 740-1607 | |



Experienced mid-level mechanical engineer with technical experience in mechanical design, prototyping, and injection molding.


    Washington University in St. Louis                                   

    Bachelor of Science, Mechanical Engineering - May 2018


   Software:    SolidWorks, Matlab, AutoDesk Inventor, Arduino, Python, G-Code

   Equipment:    3-D printer, injection molding, sand blasting, powder coating, vacuum forming, laser-cutter, lathe, CNC mill, machine shop

   Language:    Minimum Professional Proficiency in French


Objex Design; St. Louis, MO    Nov – Dec 2018

   Mechanical Engineering Intern

  • Designed parts in SolidWorks to be injection molded.

  • Made proof-of-concept 3D printed models.

  • Researched products currently in market, and designed innovative solutions around them

Carr Lane Manufacturing; St. Louis, MO     June – Aug 2017

   Mechanical Engineering Intern

  • Designed a workholding system that Carr Lane now uses to manufacture 24 different products.

  • Designed 200+ acrylic trade show displays for products that will be demonstrated at IMTS.

  • Communicated with machinist to prototype a new product that Carr Lane is looking to patent.

Brady McCasland- Private Chemical Manufacturer; East St. Louis, IL     June – Aug 2016

   Engineering Intern / Project Manager   

  • Changed the company's production process; their product lasts 20% longer.

  • Brady McCasland is filing a patent for my manufacturing invention, naming me inventor.

  • Reduced energy costs due to lighting by $5,000 per year and received $11,000 through Ameren’s Act on Energy program.

  • Led the design of a magnetic separator which will sort through soil to collect an expected 50 million pounds of iron powder.


Washington University in St. Louis, Department of Electrical and Systems Engineering     Aug 2016 – Dec 2017

    Teaching Assistant

  • Served as teaching assistant for ESE 205 Introduction to Engineering Design with an enrollment of 40 students; graded the students at the end of each semester.

  • Taught students the skills they needed to complete their design project; these skills include CAD, 3D printing, programming, prototyping, and circuits.

Undergraduate Research  —  Raspberry Pi Car Project; Xian, China     Aug 2016 – May 2018

    Research Student

  • Placed top 10 in the Silk Roads Robotics Innovations Competition in Xian, China.

  • Designed a miniature four-wheeled autonomous car powered by a Raspberry Pi 3 B+ board that uses optical flow from a single camera to avoid obstacles.

  • Worked in a team of 3 to design a chassis in SolidWorks and 3D printed the parts.

Washington University School of Medicine; St. Louis, MO     June 2014 – Nov 2015

    Radiology Lab Assistant for Yuan-Chuan Tai, Ph.D.

  • Programmed and conducted simulations of a robotic arm in SolidWorks

  • Researched various robotic arms which led to a purchase from KUKA Robotics.

  • Modeled and 3D printed a gripper for the robotic arm to aid in research and functionality.

  • Manufactured specialized “light guide” parts out of acrylic for deflecting gamma rays into the photoreceptors of a micro-insert PET detector using a four-axis milling machine.


Priory School, St. Louis, MO     Dec 2014 – May 2016

   STEM Mentor

  • Instructed a local high school’s First Robotics Team of 30 students; biweekly basis.

Washington University in St. Louis Varsity Cross Country     Aug 2015 – May 2016

    Varsity Student Athlete


Qiang Wang, Jie Wen, Bosky Ravindranath, Andrew W. O’Sullivan, David Catherall, Ke Li, Shouyi Wei, Yuan Chuan Tai; “A compact high resolution flat panel PET detector based on the new 4-side buttable MPPC for biomedical applications” (Submitted to Nuclear Instruments and Methods in Physics Research Section A Journal).