Jansen P.

Experience

• Guidance, Navigation, and Control Relativity Space · Full-time Sep 2024 – Present 1 yrs 2 mos Los Angeles, CA, United States Writing guidance and control algorithms to launch rockets into space.
  https://www.relativityspace.com/
• Mechanical and Aerospace Design Engineer StellarForged · Freelance Sep 2024 – Present 1 yrs 2 mos Long Beach, CA, United States https://stellarforged.com/
• Starship Components Engineer SpaceX · Internship Jul 2023 – Sep 2023 2 mos Hawthorne, CA, United States Mechanical Design Engineer | Precision CAD + DFM Expertise
  
  - Led design improvements for SpaceX Starship solenoid valves, reducing dropout current variability and increasing joint torque by 300%, directly enhancing flight reliability.
  - Designed and built a precision crimping tool to assemble solenoid armatures—consolidated a multi-step process into a single press with dual-load capability. Released full ASME Y14.5-compliant technical drawing package.
  - Executed part-level design changes to poppets and armatures, qualified through rigorous vibration testing to meet flight-readiness standards.
  - Developed next-gen ship compensators with enhancements to both build and test workflows. Updated system-level leakage specs and authored a MATLAB tool to analyze friction performance from test data—uncovering and resolving key design inefficiencies.
• Starship Launch Engineer SpaceX · Internship Jul 2022 – Sep 2022 2 mos Starbase, TX, United States On the Flight Controls team assisting preparations for the first orbital launch attempt of Starship.
  • Studied Raptor 2 P&IDs, learning valves and operational procedures of this engine.
  • Completed Raptor rocket engine checkouts on Booster 7 and Ship 24 in preparation for static fire testing.
  • Calibrated the orbital farm LOX and LN2 tanks pressure transducers, working with the digital control
  systems team doing the calibration in field, ensuring error from the data acquisition system was included.
  • Updated the pad software with the new calibration curves using the Git workflow and Jira ticketing system.
  • Created work packets to add line blinds to the LCH4 system, updated the pad CAD files using NX, Teamcenter workflow with the new valves along with the P&IDs. Made engineering weld drawings,
  sourced quotes, and arranged meetings with suppliers to finalize purchase order.
  • Added pneumatic isolation valves on the launch tower allowing for modular safing of the tower’s remote
  valves, added these valves to the launch countdown procedure