Resume

Click below or scroll to see some of my technical experiences and skills

EducationPublicationsSkillsExperienceLanguagesContact

Education

Le Lycée Français de Los Angeles
Los Angeles, CA • June 2021
Student Athlete: Varsity Tennis Team Captain
GPA: 4.63

Publications

Roos, C., Stolk, J.D., Brinkmann, W., Vo, K., Skelly, W., 2025. The causes of sustained load cracking in aluminum 6351-T6 gas cylinders. Materials & Design 258, 114538. https://doi.org/10.1016/j.matdes.2025.114538

Experience

SpaceX – Dragon Structures Engineer

Hawthorne, CA • 06/16/2025 – present

  • Conducting extensive FEM analysis (FEMAP/NASTRAN, Ansys, ANSA, LS-DYNA)and load analysis as the RE (responsible engineer) for the parachute deployable system
  • Leading qualification campaigns and dev testing of flight hardware including full scale parachute system extraction testing at NASA facilities
  • Managing production support for my hardware and traveling to Cape Canaveral, FL to assist in flight readiness and integration support
  • Analyzing material performance, working extensively with metallic and composite materials including fracture, buckling & failure modes to ensure reliability and safety

Boston Scientific – Senior Capstone Project
Needham, MA (Olin College of Engineering) • 09/04/2024 – 05/16/2025

  • Co-designed a patent-pending invention focused on enhancing device sustainability
  • Public Project Description: The Single Use Biopsy Forceps are a medical device designed to collect tissue endoscopically for histologic examination. This project involves the development of processes and design changes which can enhance the sustainability of Boston Scientific Single Use Biopsy Forceps, assisting them in meeting their goal of being carbon neutral by 2050. This can be achieved by reducing the carbon dioxide emissions from the creation, use, and waste streams of their line of Biopsy Forceps products, while maintaining their performance and use

ABL Space Systems – RS1 Vehicle Structures Mechanical Engineering Intern

El Segundo, CA • 04/15/2024 – 08/02/2024

  • Conducted FEA/CFD analysis (Ansys, FEMAP), CAD modeling (Siemens NX), aerothermal simulations, and hand calcs for various projects ranging from external LOx flow cover redesigns to weld strength coupon tests and buckling tests to determine interstitial buckling loads
  • Designed and executed over 40 pressure tests for radial and face seals in ambient and cryogenic conditions, analyzing variables such as gas type, seal temperature, tube out-of-roundness, and pressure thresholds to characterize metallic component & seal material properties under pressurized cryogenic conditions
  • Gained hands-on experience in hydrostatic and pneumatic pressure testing

SpaceX Dragon Structures TrunkShield Mechanical Engineering Intern

Hawthorne, CA • 02/2024 – 04/2024

  • Led updates on margin, fracture, buckling, and bolted joint load calculations for Dragon heatshield and backshell components (Ansys, FEMAP)
  • Redesigned (Siemens NX) a heatshield quick-disconnect passthrough by introducing new thermal gapfill materials, refining the injection process, and designing a custom injection tool, while redefining the NDE CT testing criteria
  • Developed and executed a comprehensive testing plan, including dynamics vibe testing and thermal qualification
  • Supported critical mission readiness projects ranging from Ansys/FEMAP analysis of flight critical parts to vibe, shock, and functional explosive testing of NSD/NSIs to ensure Dragon mission readiness
  • Traveled to the Cape Canaveral, FL, Space Force Station to assist in mission critical Dragon flight readiness

SpaceX Starlink Gateway Reliability Mechanical Engineering Intern

Redmond, WA • 05/2023 – 08/2023

  • Designed (Siemens NX), prototyped, manufactured, and proof-tested a lifting tool for 300+ lb upper assembly installations/maintenance inside Starlink gateways
  • Conducted physical testing via rigged forklift load cell assemblies and Instron machines, iterating designs with 80/20 extrusion and custom machining/welding the final assembly (mill, lathe, bandsaws, grinders, laser engraver)
  • Traveled to Hawthorne, CA, (SpaceX HQ) to deploy a new roof-top gateway site
  • Traveled to AL, WI, and TX (including SpaceX McGregor site) to use my tool to fix 7 broken gateways that would otherwise have been discarded

Olin Rocketry – Project Manager, Structures Lead & Senior Mentor

Needham, MA (Olin College of Engineering) • 09/20/2021 – 05/16/2025

  • Led the entirely student-led project team developing SRAD rocket components, including in-house solid fuel motors, avionics, modular payload systems, carbon fiber fairings, fins, and airbrakes
  • Taught students CAD (SolidWorks, Siemens NX), CFD (Ansys), and FEA (SolidWorks, Ansys) to design, analyze, and model flight components and trajectories
  • Analyzed composite failure modes for different stages of flight to optimize weight, structural integrity & cost
  • Oversaw manufacturing processes involving composites, CNC machining, waterjetting, milling, lathing, and laser cutting for high-performance rocketry applications
  • Intercollegiate Rocket Engineering Competition – Spaceport America (NM) June 2022 (10K COTS) – Phoenix IV dual-deployment rocket

Olin College of Engineering – Teaching Assistant/Tutor

Needham, MA (Olin College of Engineering)

  • TA for Design Nature • 09/1/2022 – 12/16/2022
  • Individual Tutor for Mechanics of Solids & Structures • 03/13/2023 – 05/10/2023
  • TA for Mechanics of Solids & Structures • 08/26/2024 – 12/20/2024
  • TA for Mechanical Analysis (entirely student-led course) • 08/26/2024 – 12/20/2024

Preston Cinema Systems – Mechanical Engineering Intern

Santa Monica, CA • 05/16/2022 - 08/12/2022

  • Designed precision parts and tools using detailed SolidWorks drawings
  • Troubleshot and modified out-of-spec components from manufacturers to meet functional requirements through precision machining adjustments (mill, lathe)
  • Performed customer repairs and analyzed common failure modes in the field to inform the design of more durable, low-maintenance product solutions

Skills

Materials & Testing:
Metal Casting – Composites – Instron Mechanical Testing – Hydrostatic/Pneumatic Pressure Testing – Polishing/Etching/Microstructural Characterization

Characterization & NDE:
SEM/EDS – XRF – ED-XRF – CT – PT – Xray – UT(MIUT/LAUT/PAUT) – ST 

Software/Analysis:
FEMAP/NASTRAN – Ansys – Siemens NX – SolidWorks – Fusion 360 – OpenRocket – LaTeX – MATLAB – Python – myVGL – ANSA – LS-DYNA

Mechanical/Fabrication:
(CNC)Mill – Lathe – Waterjet – Composites – CNC Shopbot – Woodworking – MIG Welding – Laser Etching – Band/Table/Extrusion Saws – Laser Cutter – Injection Molding – Urethane Casting – Vacuum Forming

Languages

French – Native Speaker
English – Native Speaker
Spanish – Advanced Speaker

Contact

Email: croos@alumni.olin.edu / cassandre.a.roos@gmail.com

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