John Rehagen

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Hi! I'm an engineering student who is passionate about product and manufacturing process design.

I am seeking hardware oriented internships or co-ops before I graduate in fall 2025. If you have an opportunity that might fit, give me an email at Johnwrehagen at gmail dot com or reach out on X/Twitter!

Resume

What's next... Your Company?

Spring, Summer or Fall 2025

  • I am seeking a hardware focused internship or co-op (6+ month preferred) for spring, summer and/or fall 2025.
  • I love working with small teams on fast moving projects. Solving hard problems and working from first principles are my forte.
  • If you have an opportunity, please reach out at Johnwrehagen at gmail dot com or on X/Twitter.

[Current] Founder Aggie Drone Initiative

July 2024 - Present

  • Founder of Aggie Drone Initiative - an organization with the goal of providing an opportunity for A&M engineers to get more hands on experience in designing, building and flying specialty drones.
  • Current project: A fixed wing vtol drone similar to the Anduril Roadrunner or ShieldAI VBat. More coming soon!
  • If you are interested in supporting the project, please reach out via the email above!

[Current] Manufacturing Automation Engineer RMFG

July 2024 - Present

  • I am leading manufacturing automation equipment design to automate a sheet metal factory.
  • RMFG is a YC-backed startup aimed at automating sheetmetal manufacturing by building an API-first sheetmetal factory

Manufacturing Engineering Co-op - R1 Body Rivian Automotive

May 2023 - December 2023

  • Led manufacturing process planning of four robotic manufacturing lines.
  • Developed process flows leading to elimination of $1M capex expenditure and 10% headcount reduction.
  • Led manufacturing planning of 19 crash service parts. Owned RFQs, evaluated proposals, presented to management and planned implementation and production schedule through Q4 2024.
  • Collaborated with supplier on new tooling design. Led 50% and 100% tooling design reviews.
  • Coordinated root cause investigation of fastener installation failures. Investigated and identified innacuracies in snowflake dataset, amended data filter and informed $250k capex expenditure.

Design and Manufacturing - Hybrid Engine and Vehicle Structures TAMU Sounding Rocketry Team

May 2022 - May 2024

  • Responsible for the design, manufacturing, and testing of components for a 30,000 ft-class hybrid composite rocket airframe to compete in the Intercollegiate Rocket Engineering Competition (IREC).
  • Spearheaded rocket bulkhead design and manufacturing, rocket-tower integration and pressure vessel integration.
  • Exploring Metal 3D printed bulkhead components to remove constraints of manufacturing and enable continued design evolution.
  • Testing and benchmarking new composite manufacturing processes for future rockets, focusing on filament wound carbon fiber tubes, future pressure vessels and characterizing anisotropic forged carbon fiber parts.

Mechanical Engineering Intern - Product Test & Manufacturing Vex Robotics

June 2022 - August 2022

  • Designed, ran, and analyzed scientific tests to validate product functionality and define defect tolerances.
  • Standardized testing practices by writing technical manual and created quick start data analysis templates.
  • Led multiple projects from the initial ideation and pathfinding phases to multi-iteration design and full-scale production and distribution.
  • Used SOLIDWORKS to prototype and finalize the design of injection molded, punched, and fiber lasered parts while working with manufacturing team to ensure design for manufacturability.

Student Machinist TAMU Engineering Design Center

January 2022 - May 2022

  • Owned manufacturing planning and manufacturing of parts for student projects and university research.
  • Gained further proficiency in using manual lathes, CNC and manual mills, surface grinders and other tools.
  • Taught classes on safe and efficient lathe manufacturing.
  • Designed and toleranced parts for student research groups to minimize cost and ensure adequate function.

Mechanical Engineering Intern - Product Design Vex Robotics

June 2021 - August 2021

  • Used Solidworks to prototype and finalize the design of injection molded parts in a rapid development cycle (Injection Molding DFM).
  • Led the initial ideation and pathfinding of two retail projects in an ambiguous, fast paced environment.
  • Completed two additional retail projects to be sold at big box retailers.

Engineering Captain Highschool Robotics - FRC 6672

January 2018 - May 2021

  • Led the solution ideation, design and manufacturing of a 150 lb robot to play the Frist Robotics Competition game in a fast paced 10 week design-build cycle.
  • Self-taught CAD, CAM and CNC manufacturing, led commissioning of a 4x4 CNC router and transformed team's build process from hand drawn to CAD/CAM/CNC.
  • Developed mini-robots as platforms to be used in summer camps and team development programs.
Open PDF resume

Education

B.S. Industrial and Systems Engineering, focus in Manufacturing Systems Texas A&M University

Fall 2021 - Fall 2025

  • I am studying Industrial Engineering with a focus in Manufacturing Systems
  • My goal is to combine the high level understanding of manufacturing systems from my education with the hands-on, low-level, understanding of manufacturing I have obtained in my internships, project teams and personal projects. I believe this will make me a better equipped manufacturing engineer than someone who knows only one of the two domains.
  • Major GPA: 4.00
  • ACT: 35/36

Hardware Projects / Design Portfolio

VTOL Tailsitter Drone [in progress]

  • Coming Soon

Autonomous Quadcopter [in progress]

  • Coming Soon

Automatic Tube Cutter [in progress]

  • Coming Soon

Sounding Rocketry Team Rocket Bulkheads

  • Coming Soon

Sounding Rocketry Team Engine Struts

  • Coming Soon

Rock Climbing "Stick Clip"

  • Coming Soon

Swerve Drive

  • Coming Soon

Pulse Width Modulation Motor Tester

  • Coming Soon

FRC 6672 2019 Robot

  • Coming Soon

Coding Projects

Graph to Data Go to tool

  • Sometimes when doing engineering projects the data for a product only comes in a picture format.
  • This tool enables you to extract data from the picture and outputs a csv.
  • Built using Claude Sonnet 3.5.

Engineering Economics Calculator (ISEN 302) Go to Calculator

  • This is a calcualtor for ISEN 302 Engineering Economics
  • You input a cash flow scheme and the calculator generates a downloadable cash flow diagram, calculates the net present value for any interest rate, finds the internal rate of return and calculates the effective uniform annual benefit!
  • Built using Claude Sonnet 3.5 new.