Avionics and Software

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Proven hands-on experience and expert knowledge in Systems Engineering and Systems Safety Engineering. 

Strong knowledge and success in applying V-Model, Model-Based Systems Engineering, Avionics Safety, and Software Certification: Comfortable with Requirements Management and Traceability (DOORS), Preliminary Design, Detail Design, Integration, Test Verification, and all necessary design reviews and delivery requirements for high-value complex Space and Aerospace Systems. Performed/Required Reviewer and Signature Approval for all Safety artifacts and deliverables. Standards: NASA NPR 7123.1, MIL-STD-499B, IEEE 15288.1, and NAVAIRINST 4355.19D.

Proven hands-on experience with Systems Safety (Hardware, Software, and Firmware) and Software Certification.  Created compliant safety design and certification documentation and deliverables. Lead Safety Engineer for manned and unmanned aerospace programs. Used Artificial Intelligence (AI) to support verification of hazard assessment. Used blended (Alteryx) engineering data from Reliability, Safety, Software, and Electrical Engineering to gain higher a fidelity of Data Analysis, Business Intelligence, and Mission Assurance on space systems. 

Champion for using Business Intelligence and AI for Safety and Mission Assurance at NASA. Subject Matter Expert (SME) for Avionics Safety. Entered software development questions and software code into AI models and evaluated answers for correctness and accuracy. Used AI on box-level avionics hazards. Evaluated hazard analyses and make changes before and after the government had accepted documentation. Made sure documentation was compliant with all standards and specification listed in the Statement of Work (SOW) for Safety. Applied the following: MIL-STD-882E, ARP4761/4754, Joint Software Systems Safety Engineering (JSSSEH), DO-178C, DO-254, MSFC-STD-3663,DO-330, MIL-HDBK-516C, FAA Advisory Circular guidelines, and any avionics safety standard or guideline relating to safety.

Performed all aspects of Systems Safety Engineering product development. Read Statement of Work, System Requirements, studied drawings and interfaces to organize, communicate, and perform the level of effort required for Safety Critical avionics, software, firmware and interfaces for Design Level Assurance (DAL A and LOR 1). Lead Safety Engineer for DO-178C certification. Created, presented, and delivered safety artifacts to the Engineering Review Board (ERB) and Program for delivery to the customer. Created Preliminary Hazard List, Functional Threads/Fault Trees, Preliminary and Detail Hazard Analyses for Hardware, Software (OFP, Config. File, and 1553 Commands), Firmware (Xilinx FPGAs and CPLDs), Software Safety Checklists, Level of Rigor (LOR) documents, Human Factors Checklists, and Safety Assessment Reports (SAR). Performed Traceability from platform down to card level. Aligned FMEA reliability data and detailed hazard analysis data sets. Authored safety deliverables and took them through peer reviews and board reviews. Reviewed and created Software Certification and Stages of Involvement (SOI) documentation for certification.

Led System Safety Engineering for Safety Critical Software and Firmware on MQ-25 Drone and T-7 Trainer Fighter Aircraft Flight Computer avionics modules. Developed safety processes for software and firmware to achieve compliance with industry standards and specifications. Performed Avionics System Safety for NASA Office of Safety and Mission Assurance (SMA). Performed Systems Safety Engineering for SLS Rocket: Core Stage, ICPS, and Secondary Payloads; C-130 T/U/M variants, A-10, C-5, KF-16, and clandestine platforms.

Systems Safety Engineering Standards, Guidelines, and Deliverables 

ARP4761/4754, MIL-STD-882E for Flight Critical Systems

Hardware, Software, and Firmware Hazard Analyses

Joint Software System Safety Engineering 

(JSSSEH) Handbook; DO-178C Level A, Design Assurance   Level A (DAL A)

Software Hazard Analyses; BIT Analysis; Software Fault Code   Table; Level of Rigor (LOR 1); Software Certification; Stages of Involvements   (SOIs)

DO-254; FPGAs, Xilinx FPGAs CPLDs, and firmware   interface modules--OPB, PCI, Memory, and firmware interfaces

Firmware Hazard Analyses; LOR 1 Tasks; DMA, Interrupt   Controller, 1553 w/SPI, and FPGA/VHDL hardware interfaces for sensor data

AC-17-01 Thread Analysis; MIL-STD-516B

CSU/CSCI; Safety Critical Functional Threads 

SOW; Software Assessment   Report; MIL-STD-461G; Human Factors; FMECA, Common Mode Failure 

SAR (Software, Hardware, Firmware 

Risk Matrices and Analysis); Traceability Analysis