Environmental Controls & Life Support Systems (ECLSS/MERLIN) Engineer – (December 2022 – Current)Active Thermal Control Systems (ATCS/ASTRO) Engineer – (January 2016 – Current)Co-Lead of MERLIN Console Operations – (December 2022 – Current)Co-Lead of ASTRO Console Operations – (January 2019 – Current)Boeing Defense, Space & SecurityNASA International Space Station Program – Houston, TXMission Evaluation Room (MER) Console Operations• Responsibilities as Co-Lead of MERLIN/ASTRO Console Operations (Ops) include:• Management of team’s console support schedules, transition of weekly MER duties between personnel, and hosting group review of previous week’s console activity and telemetry.• Serve as primary point-of-contact between MERLIN/ASTRO, MER Management, and other Increment or Mission leads.• Train new personnel for console operations.• Support weekly NASA Customer Meeting to present recent and upcoming console events.• Evaluate changes to Flight Rules and operational procedures, and assign them to the appropriate subject matter experts for review/approval.• Currently possess over 1,585 cumulative hours of on-console experience in the Mission Evaluation Room (MER) providing support for real-time ISS operations and 41 Extravehicular Activities (EVAs), with 789 hours solo, and 118 hours training personnel.• Perform analysis on ISS ATCS/ECLSS subsystems to provide technical solutions and design improvements to NASA as needed.

Mission Evaluation Room (MER) Console Operations• Management of team’s console support schedules, transition of weekly MER duties between personnel, and hosting group review of previous week’s console activity and telemetry.• Serve as primary point-of-contact between ASTRO, MER Management, and other Increment or Mission leads.• Train new personnel for console operations.• Support weekly NASA Customer Meeting to present recent and upcoming console events.• Evaluate changes to Flight Rules and operational procedures, and assign them to the appropriate subject matter experts for review/approval.• Perform analysis on ISS ATCS subsystems to provide technical solutions and design improvements to NASA as needed. Currently possess over 1,242 cumulative hours of on-console experience in the Mission Evaluation Room (MER) providing support for real-time ISS operations, with 589 hours solo, and 110 hours training personnel.Internal Review Panel (IRP) Coordinator• Manage topics submitted to ASTRO via the Payload Integration Tasks & Assignments (PITA) online system. Review comments from the team, confirm that all recommended changes were approved and implemented, or rejected with rationale. Topics generally include individual analyses, results, etc. relevant to the Active Thermal Control System (ATCS).• Host the weekly IRP meetings as necessary, and facilitate technical review and approval of topics prior to their presentation to the NASA customer at the weekly Subsystem Problem Resolution Team (SPRT) meeting.

Photovoltaic Thermal Control System (PVTCS) Lithium-Ion Battery (Li-Ion) Project• Developed 188+ console displays in the Java Mission Evaluation Workstation System (JMEWS) to be used to monitor the health and performance of the Li-Ion batteries once deployed. These displays track 2,665 sensors and perform an additional 4,296 computations every 10 seconds, displaying the data in real-time, and providing alerts for any values outside the allowable tolerances.• Utilized MATLAB, SINDA FLUINT, and PATRAN to perform numerical and three-dimensional analysis on the Li-Ion batteries post-installation. Analysis included variables involving thermal environment, optional and required heat loads, and the availability of heat sinks. Conducted separate analyses to investigate the thermal energy release of the battery in the event of a major failure. Analysis results were used to advise other teams, leading to changes in procedures, and modification of Flight Rules.• To reduce the likelihood of catastrophic battery failure, used SINDA FLUINT to analyze the thermal effects of raising the Li-Ion battery End-of-Charge Voltage (EOCV), which provided flight controllers the data necessary to respond to rising battery temperatures during installation. Developed an ASTRO console tool to predict the temperature, voltage, and margin of the Li-Ion batteries during installation.Flow Control Valve (FCV) Analysis• Investigated the changes in performance of the FCV following Li-Ion battery installation. Verified FCV was performing as per design, and unexpected behaviors were attributable to the thermal differences between the Li-Ion vs. Nickel-Hydrogen batteries. Presented analysis at the annual Thermal & Fluids Analysis Workshop (TFAWS) in August 2018.

NASA International Space Station Program – Active Thermal Control System – Houston, TXMission Evaluation Room (MER) Support• Perform analysis on the ISS ATCS subsystem in an effort to provide NASA with technical solutions and design improvements as they are needed. Currently possess over 107+ hours of on-the-job training on console in the Mission Evaluation Room (MER) providing support for real-time ISS operations.Photovoltaic Thermal Control System (PVTCS) Lithium-Ion Battery Project• Developed heat maps for the Photovoltaic Thermal Control System (PVTCS) Lithium Ion battery replacement, used to visualize the extent of a thermal runaway event with respect to time. Heat map takes data from 921 sensors (pressure, temperature, etc.), each generating 27,553 data points over 8 hours (~25.4 M data points total), and displays it in a color-coded format with values shown at each sensor location on a subsystem schematic.• Developed 22+ console displays in the Java Mission Evaluation Workstation System (JMEWS) to be used in monitoring the health and performance of the Li-Ion battery once deployed. These displays track 282 sensors and perform an additional 228 computations, displaying the data in real-time, and providing alerts for any values outside the allowable tolerances.Active Thermal Control Systems (ATCS) Gas Trap Plug Project• Contributed to researching and determining a possible solution for plugging the Gas Traps used as part of the Pressure Pump Assembly (PPA) of the International Space Station (ISS). Reviewed over 20 individual commercial-of-the-shelf (COTS) options available, spanning 7 vendors and 5 styles/types of plugs. Also contacted several suppliers regarding their technical capability and requirements to develop a custom plug if needed.

• Laid off in Nov. 2014 as a result of workforce reduction/federal program budget cuts. • Initially sought out spaceflight operations opportunities in Cape Canaveral, FL to be closer to family, before later expanding search to Houston, TX. • Used opportunity to research academic Aerospace Ph.D. programs, and volunteered at U.S. Space & Rocket Center in Huntsville, Alabama as a scuba diver.

• Analyzed and integrated over 50 NASA Space Launch System (SLS) Main Propulsion System (MPS) design changes. Coordinated with engineers and suppliers to identify technical scope of change, impacts to cost, schedule, certifications, and associated systems.• Integrated 37 packages of analyses, components, specifications, requirement definition, and tests as member of Propulsion Systems Design team over a 4 month period. Duties included requirement decomposition and analysis, establishing and documenting test objectives, and incorporating documentation into the Dynamic Object-Oriented Requirements System (DOORS). Additional responsibilities included generation and editing of Detailed Verification Objectives (DVO) documentation, coordinating with the customer (NASA) weekly, and identifying and resolving obstacles that would prevent closure of requirements.• Analyzed the Helium System of the SLS Core Stage using the EASY5 fluid dynamics software suite, collaboratively verified vehicle design interoperability, confirmed projected performance as part of iterative design process, and wrote specifications for internal distribution, customers, and suppliers.

• Examined the Orbiter's Thermal Protection Systems as member of Mission Assurance team. Ensured that all thermal shielding was acceptable for flight, and approved or recommended corrective measures when parts did not qualify. Served as TPS representative to provide guidance in the event of a Return to Launch Site (RTLS) emergency procedure on several missions. Provided console support during mission launch sequence.• Ensured that all proposed corrective measures that applied to the component or issue in question were suitable and sufficient for the upcoming mission. Duties included the comprehension of engineering drawings, parts, manufacturing methods, materials, assembly processes, engineering processes, and scientific inquiry into anomalies. This role incorporated the writing of dispositions for both damaged parts already in service, and for non-conformances on new parts in production. Examined flight hardware in tight quarters, from harness platforms, and/or on the launch pad. Worked with technicians to coordinate product fabrication runs.• Exceeded supervisor expectations while investigating and authenticating contractor-proposed resolutions for issues with parts-processing that spanned multiple departments and often required intensive analyses.