Bill S.

Experience

• Systems Engineer Senior Principal SAIC · Full-time Dec 2013 – Oct 2025 11 yrs 10 mos El Segundo, CA, United States Systems Engineer Senior Principal, Responsibilities included the development of GPS III program space segment and spacecraft requirements, interface and space segment to ground segment integration documents and contractor oversight. Worked with Specifications in DOORS. Generated DOORS DXL scripts to provide customized views for specification review. Interfaced with the GPS III Control Segment, the Air Force Space Command (Customer), Sandia and Los Alamos National Laboratories and other Space Segment and Ground Segment Contractors and Internal Program Management.
• Chief Systems Engineer L’Garde · Full-time Sep 2013 – May 2014 8 mos Tustin, CA, United States Chief Systems Engineer for the development of the Sunjammer Solar Sail Spacecraft, a NASA Technical Demonstration Mission. Responsibilities include technical leadership of ten engineers performing requirements definition, allocation and flowdown, specification development, mission analysis, design trade studies, hardware and software design and development, validation and verification planning, integration and test planning and support of customer reviews and other activities for the spacecraft and ground segments.
• GPS III Spacecraft Development Lead SAIC · Full-time Apr 2008 – Apr 2012 4 yrs El Segundo, CA, United States GPS III Spacecraft Development Lead for the Systems Engineering and Integration (SE&I) contract. Responsibilities included the development of GPS III program space segment and spacecraft requirements, interface, and space segment to ground segment integration documents and contractor oversight. Managed the GPSIII Space Segment Requirements Specification and the GPS III Satellite Primary Item Development Specification in DOORS. Worked with contractors provided Configuration Item Specifications (C-Specs) in DOORS. Generated DOORS DXL scripts to provide customized views for specification review. Interfaced with the GPS III Control Segment and User Interface specification owners as well as the Air Force Space and Missile Systems Center (SMC) Customer, Space Segment and Ground Segment Contractors and internal Program Management.
• Subcontract Proposal Manager for Supply Chain Management/Senior Systems Engineer Raytheon Space and Airborne Systems · Full-time Jun 2004 – Apr 2008 3 yrs 10 mos El Segundo, CA, United States Subcontract Proposal Manager for Supply Chain Management. Responsibilities included the evaluation and development of technical proposals for customers, and the subsequent flowdown of requirements and preparation of documents for subcontractors such as Request for Proposal (RFP), Request for Information (RFI), Statement of Work (SOW), technical specifications, and requirement documents. Also led Performance Excellence teams for the development of parametric costing tools and improved SOW generation.
  
  System Engineering Integrated Product Team Leader (IPTL) for new development of the next generation GPS guidance system receiver for the Tomahawk Cruise Missile Program. Responsibilities include providing technical leadership for the system engineering team as well as reporting cost and schedule metrics to Raytheon Program and Senior Management as well as to the customer.
  
  
  Senior Principal Systems Engineer/Scientist, supporting classified optical space payload business development programs. Responsibilities included system technical requirement analysis and concept of operations (CONOPS) development for Ground, Space and User Segments, technical requirement and specification and allocation and flowdown, systems trade studies, risk analysis, systems budget development and management (Including mass, power, pointing, RF link and image quality budgets), payload/spacecraft interface requirement definition, System Engineering Management Plan (SEMP) and Enterprise Management System (EMS) process plan development.
• Senior System Engineer TRW/Northrop Grumman Space Technology · Full-time Feb 2003 – May 2004 1 yrs 3 mos Redondo Beach, CA, United States Senior System Engineer, supporting the NPOESS Spacecraft/Payload Program. Responsibilities included multi-segment CONOPS and requirement analysis trade studies, and development (Ground, Space and User Segments), Cost as Independent Variable (CAIV) studies, system specification development, allocation, flowdown and management (DOORS, SLATE), subcontract management (earned value analysis, metrics reporting and award fee determination), spacecraft bus/payload interface system engineering (including mechanical, electrical and thermal interfaces), remote sensing payloads and interface control document (ICD) development for NGST NPOESS Spacecraft Bus and Boeing Satellite Systems (BSS) Conical Scanning Microwave Imager/Sounder (CMIS) Payload. Also supported Technical Interface Meetings (TIMs) and working groups (Including customers, internal management, and subcontractors) and system budget development and management.
• Senior Project Engineer Boeing Satellite Systems (BSS) / Hughes Space and Communications, El Segundo, CA · Full-time Jun 1994 – Feb 2003 8 yrs 8 mos El Segundo, CA, United States Senior Project Engineer supporting numerous classified and unclassified government and commercial spacecraft and payload programs. Responsibilities included business development (pre-campaign activities, customer and subcontractor interaction, technical proposal development and management, costing, proposal submittal and follow-up, contract preparation and negotiation), multi-segment architecture trade studies and requirement analysis and development for end-to-end turnkey systems (ground, space and user segments), CAIV studies, project/program management, spacecraft bus and payload system engineering (bus subsystems included Electrical Power (EPS), Command and Data Handling (C&DH), Attitude Determination and Control (ADCS), Thermal and Structure Subsystems, Payload Systems included RF communications, microwave radiometer, radar, Electro-Optical (EO), Infrared (IR), Visible Spectrum and Hyperspectral Sensor Payloads and various other classified payloads). Additional responsibilities included spacecraft conceptual design, requirement and specification definition, allocation and flowdown (SLATE and DOORS), technical specification development (A Specs, B Specs, validation and verification plans) technology insertion roadmap integration, design review preparation and presentation, system budget development and management (including mass, power, link and pointing budgets), technical and change board participation, test planning and procedure development, anomaly investigation, analysis and resolution, system engineering tools and process development.
• Principle Systems Engineer McDonnell Douglas Aerospace Company · Full-time Apr 1990 – Nov 1993 3 yrs 7 mos Huntington Beach, CA, United States Principle Systems Engineer, supporting numerous classified and unclassified government spacecraft and payload programs. Responsibilities included project management for the design, fabrication, and maintenance of spacecraft/payload System Test Equipment (STE) (including management of test engineers and technicians, project schedules and cost, reporting to the customer and internal management). Project tasks included hardware design and fabrication, software development and launch operations support. Additional experience as a Maintainability Systems Engineer.
• Senior Systems Engineer Hughes Aircraft Company · Full-time Sep 1978 – Apr 1990 11 yrs 7 mos Huntington Beach, CA, United States Senior Systems Engineer and Test Conductor supporting numerous classified and unclassified government spacecraft and payload programs. Payload types included IR and Visible EO Space Sensors, Antiballistic Missile Defense Sensors, Radars, Magnetometers and Communications Payloads. Responsibilities included the supervision of System Engineers, Test Engineers and Technicians performing spacecraft bus and payload design, integration and test (unit, subsystem and system level), test data reduction and analysis, data package development (including assembly, review, and sell-off), system test requirement development, test plan and test procedure development, launch support, payload cable harness design and development and Design Integration System Engineering.
  
  Scientific Employment Representative (Technical Recruiter), Responsibilities included planning corporate job fairs, college recruiting trips, reviewing resumes and traveling throughout the country to major cities, universities and colleges to interview and recruit both experienced and newly graduated Engineers and Scientists.