• Lead System integration and test support for advanced government satellite payload. Testing (using Labview instrumentation) included actuator Flight software performance verification and frequency response and sensor optical performance under different thermal conditions in Vacuum Chamber. Analyzed initial results with preliminary assessment before passing the results to responsible CMEs (mechanical, electrical, optical, thermal, power, and system engineers) for detailed analysis, including using the Matlab tool. Developed test planning and test scripts to test payload components to verify requirements

• Ground Support and Simulation Engineer (Oct 2014 to April 2019)• Performed space vehicle simulator to test Ground System software for government programs • Developed new software tool using Tcl\TK to configure space vehicle simulator• Developed test planning and test procedures to test new Ground System• Commercial Spacecraft Simulator Technical Lead (Dec 2000 to Oct 2014)• Technical lead for embedded Boeing commercial spacecraft software simulator and real-time Hardware-in-the-Loop (HITL) simulators, based on Applied Dynamics International (ADI) products.• Developed test cases/test scenarios and test scripts (shell scripts for UNIX), including automated testing in limited cases, to qualify HITL simulators, which were subsequently used to verify qualify Flight Software (FSW) and other purposes (mission and Ground training, Flight Operation development, and on-orbit anomaly analysis).• Supported and helped debug Flight software (FSW) used and designed by Guidance, Navigation, and Control (GN&C), Power, and Thermal subsystems• Integrated Product Team Lead (IPTL) and Cost Account Manager (CAM) for the HITL simulators development, testing, and qualification before delivering to NASA. Derived technical specifications from contract SOW and needs to software and hardware requirements and specifications for the HITL simulators by working with Special Test Equipment (STE) team and simulation engineers to build the HITL simulators. Developed software test plan, test procedures and test scripts to validate and verify BSE and HITL software and hardware specifications. Developed matrices and schedule to keep track team progress and provided management with weekly earned value, cost and schedule variances, and risks status and mitigation plan.• Successfully developed, tested, verified/validated, qualified, and delivered Boeing Satellite Emulators (BSE) to NOAA and Thuraya (UAE), followed by on-site training for mission operators and maintenance of the machines.

• Performed verification and validation of ACS design using both real-time, hardware-in-loop simulation and all digital simulation for the NMD program. Working with mission engineers and ACS engineers, successfully tested and launched NMD missiles, on time and on budget• Managed simulation lab resources, including staffing, software, and hardware, in supporting all analysis and testing activities

• Performed Windows NT, Novell network, and Internet engineering for various clients. Responsibilities included network design, implementation, and analysis of LAN/WAN, email system (Exchange), and Internet server.• Consulted clients on network administration, analysis, and disaster recovery procedures.

• Using MATLAB, EASY5, LabView5 to design, develop, and test Space Station mechanical system • Space Station 6 DOF simulation modification to test Life Science proposal and determine its impact on Station attitude performance

• Performed control analysis for Minuteman and Peacekeeper missiles, and designed and customized bending filter for different mission with different structural characteristics (from NASTRAN finite element analysis), confirming adequate gain margins for all phases of flight • Conducted and modified 6 DOF missile simulation• Pre-flight/launch readiness and analysis, including Monte Carlo runs, post-flight test data reduction and control analysis