Gregory Lemieux, Computational Engineer
CONTACT
1113 Channing Way, Berkeley, CA 94702 USA
| 1.510.847.6519 | http://glemieux.github.io
SUMMARY
I'm an engineer with a passion for developing scientific software applications to help solve some of the most pressing problems facing our world. My particular interest lies in applied optimization and towards this end I am pursuing a graduate degree, part-time, with a focus on Computational Engineering. I have a broad technical background developed through work in both academic and industrial organizations, providing both research-oriented and commercially-focused products and services. As such, I am extremely comfortable communicating within a variety of environments and have a proven ability to adapt to changing responsibilities based on evolving project requirements.
EXPERIENCE
Systems Engineering Specialist 2012-04 — Present
SSL
  • Developing the next-generation orbit propagator for controls design and Vehicle Hardware Lab simulation as well as the on-board flight software orbit estimation Kalman filter.
  • Collaboratively building a Git submodule-based simulation architecture to enable code reuse and standardization for the Mathworks environment.
  • Devised a package management system to automatically check and load necessary library dependencies for simulation submodules.
  • Implementing Mathworks-based autocode generation toolchain to help streamline flight software build efforts.
  • Produced new, Jupyter and Julia-based mission analysis tools for the NASA Restore-Lmission to help guide hardware subsystems decision-making which included a sensor placement optimization and visualization tool.
  • Expanded verification and validation test routines for Chebyshev-based ephemeris approximation code.
  • Founding member of the Guidance, Navigation and Control Software Development Working Group which formed consensus-based guidelines for code commonly utilized by multiple departments.
  • Designed and conducted critical orbit-raising maneuvers as the Mission Planner for more than five geosynchronous communication programs.
  • Developed training for new Orbit Dynamics Group hires in using the heritage mission analysis tool set.
Research and Development Engineer 2008-06 — 2012-04
  • Developed science data accumulation forecasting tool to aid in real-time planning for mission critical science collection activities.
  • Integrated DSN Service Scheduling Software into active mission operation scheduling architecture and process.
  • Helped Flight Dynamics team replace functions developed in-house with industry standard JPL SPICE toolkit functions.
  • Contributed to the Deep Space Network Scheduling Advisory Group and Mid-range Management Group to prepare for deployment of next-generation scheduling process to all missions utilitzing the DSN.
  • Scheduled communication support for ARTEMIS mission including critical maneuvers such as Lunar Orbit Insertion.
  • Participated in the integration and test activities for the NUSTAR mission.
Opto-mechanical Engineer 2003-12 — 2006-05
  • Designed infrared lens assemblies for commercial, defense, and research applications in coordination with staff optical scientist.
  • Represented the Engineering department as a member of the company-wide Quality Control Committee seeking AS9100 compliance.
  • Conducted performance tests for multiple types of lens assemblies using a scanning-slit modular transfer function (MTF) test bench.
Mechanical Engineer 2001-09 — 2003-06
  • Designed and developed the vacuum-sealed opto-mechanical assembly for the main science payload for the SPIDR NASA mission proposal.
  • Conducted both simulated and real-world structural analysis using finite element model to guide the build of test flight hardware.
  • Produced failure modes and effects analysis documentation for payload hardware failure mitigation.
SKILLS
Scientific Programming: Matlab/Simulink, Julia, NumPy, Fortran
Source Control: Git, Subversion
Documentation: Markdown, TeX, Pandoc
Productivity: VScode, Jupyter, Vim
Operating Systems: Linux, macOS, Windows
EDUCATION
Purdue University 2016-09 — Present
M.S. Interdiscplinary Engineering
Boston University 1997-09 — 2002-05
B.S. Aerospace Engineering
PUBLICATIONS
  • Presents analysis results for a survey of all SSL launches since the 1990s.
  • Discusses the results and experiences integrating the Deep Space Network software and processes for the ARTEMIS mission extension.
AWARDS
Asterism Award, SSL 2015
  • Peer-to-peer recognition for developing and delivering introductory training material for new orbit dynamics group employees.
Apogee Award, SSL 2013
  • Received for contributions to a 2013 NASA Institute for Advanced Concepts (NIAC) proposal for a deep space communications architecture concept.
ARTEMIS Project Recognition, Space Sciences Laboratory 2010
  • For contributions to the Lissajous and Lunar Orbit Phases.
VOLUNTEERING
UUCB - Social Media Team 2018-07 — Present
  • Administrative member of the church Social Media Team responsible for training and technical support to the church program groups.
UUCB - Safety Implimentation Team 2017-09 — Present
  • Responsible for educating all church program groups on the Safety Plan requirements.
  • Trained Family Ministry and Religious Education volunteers on emergency evacuation procedures.