CV

Education

B.S./M.S. in Aerospace Engineering, University of Colorado Boulder, 2019

Skills

Fault Management:

• Fault Tree Analysis (FTA)
• Autonomous fault detection/response
• Test case development

Verification & Validation Testing:

• SIL/HIL integration testing
• Unit testing
• Monte Carlo analysis

Flight Operations:

• On-orbit commissioning and anomaly resolution
• Telmetry trending
• Procedure development

Navigation and Controls:

• Linear controllers and control theory
• Linear Kalman filters

Modeling & Simulation:

• 6-DOF simulator development
• Rigid body and multi-body dynamics
• Flight dynamics, orbital mechanics

Software & Tools:

• MATLAB/Simulink, Python, C++,
• Systems Tool Kit, Orbit Determination Tool Kit
• Git, Apache Subversion
• Microsoft Office

Work experience

GN&C Engineer | Boeing, Everett, WA | September 2023 - Present

• Perform FTA to verify probabilistic safety requirements for flight control algorithms on the Boeing 777X, contributing numerical evidence toward system safety certification.
• Improved the fault tree failure database by integrating electrical wiring zone failure rates derived from wiring diagrams and component-level reliability data.
• Define safety requirements following decomposition and traceability processes.
• Led fault tree and branch termination analyses for a satellite’s GN&C subsystem and identified the autonomous fault detection and response measures needed to achieve mission objectives.
• Defined and documented autonomy software interface commands and telemetry.
• Improved MATLAB tools for pointing jitter frequency domain analysis.

GN&C Engineer | Ball Aerospace, Boulder, CO | July 2019 – August 2023

• Investigated and resolved GPS receiver and star tracker anomalies on-orbit, coordinating with operations team, supplier, and customer and tracking root cause analysis with Jira Service Management.
• Developed tools to process test and on-orbit telemetry data, reducing turnaround time for anomaly investigations and calibrations.
• Supported GN&C subsystem SIL and HIL tests to validate GN&C hardware and subsystem functionality and resolved anomalies real-time in a cleanroom environment to maintain schedule.
• Conducted Monte Carlo analyses of 6-DOF spacecraft simulations with fault injection to quantify the probabilistic reliability of GN&C performance and verify pointing performance and safing requirements.
• Led cross-functional meetings to refine and verify IXPE’s boom deployment sequence and its contingency responses.
• Established a product baseline of GN&C algorithm unit tests for the flight software team.
• Designed and tuned control algorithms for spacecraft bus thermal control systems to meet tight temperature range requirements.
• Developed and validated a 2-axis gimbal multi-body model using Newton-Euler equations to verify antenna pointing performance in MATLAB/Simulink.
• Tuned coarse sun sensor and gimbal motor simulation models using vendor and in-house test data for improved simulation fidelity.

Technical Aide | Ball Aerospace, Boulder, CO | August 2018 – July 2019

• Developed MATLAB/STK scripts to generate de-orbit burn sequences and scenario generation.
• Executed high-fidelity ADCS simulations for spacecraft attitude control performance evaluation.

Systems Integration & Test Intern | Ball Aerospace, Boulder, CO | June 2018 – August 2018

• Analyzed thermal and orientation dependencies to optimize mission design.
• Automated STK simulations from flight telemetry.

Course Assistant | Applied Mathematics & Ann and H.J. Smead Aerospace Engineering Departments, Boulder, CO | July 2017 – May 2019

• Held office hours to assist students, compile homework/project solutions, grade course material and help assess grades. Courses: Orbital Mechanics/Attitude Dynamics and Control, Statistical Methods.

Projects

Personal GN&C Projects | August 2024 - Present

• Check out my Porfolio page!

CubeSat Design (SolarCube) | January 2018– May 2018 University of Colorado Boulder, Boulder, CO

• Created a closed-loop 6-DOF simulator from scratch to evaluate actuator sizing, PD control response, momentum management, and available time to transit.
• Cool satellite ground tracking simulation that I put together!

Autonomous Capture of a 2-DOF CubeSat | August 2016 – May 2017 University of Colorado Boulder, Boulder, CO

• Designed and tested MATLAB algorithms for autonomous target capture; presented work in PDR/CDR reviews and published in AIAA.
• My team’s final presentation

Publications

SDA GEO Location in a GPS Denied Environment

J. Boyd, T. Ly, and I. Gravseth, “SDA GEO Location in a GPS Denied Environment,” poster presented at the AMOS Conference, Maui, HI, 2023. [Online].

IXPE Observatory Integrated Thermal, Power, and Attitude Mission Design Analysis

W. Kalinowski, et al., "IXPE Observatory Integrated Thermal, Power, and Attitude Mission Design Analysis," 2019 IEEE Aerospace Conference, Big Sky, MT, USA, 2019, pp. 1-13, doi: 10.1109/AERO.2019.8741691