John Hemmick Email & Phone Number

Norway

Austin, TX, US

Austin, TX, US

• Provide direct engineering support to customers concerning Secure Element
• Execute Product Security Incident Response (PSIRT) and coordinate critical vulnerability fixes
• Present product security updates to BU stakeholders
• Produce embedded security training and documentation materials
• Develop and lead product security coursework

• Designed secure firmware for a cryptocurrency wallet based on NXP's Kinetis 82
• Architected Secure Enclave transaction driver, touchscreen, flash/filesystem and GUI components
• Designed and implemented firmware API for encoding cryptocurrency transactions

Austin, TX, US

• Architecting a Linux-based IPv6 IoT network routing appliance
• Producing embedded firmware for reference designs to aid customers bringing new IoT products to market
• Developing new APIs and host applications to simplify and universalize IoT
• Optimizing build, test, and deployment technologies

• Working on drivers and firmware development for an 802.11ad SOC intended for low-power, mobile application
• Designing and guiding the production of drivers and API for integrating the SOC into Android
• Implementing firmware to follow the IEEE 802.11ad wireless specification
• Design and implementation of a Hardware Interface Layer to facilitate ease of firmware bringup between chip revisions
• Design and implementation of a Hardware Abstraction Layer to facilitate easy firmware transition between chip revisions
• Debugging linux driver, wpa supplicant, and proprietary embedded firmware

Houston, Texas, US

• Designed and implemented new firmware features in C/C++ for a next-generation blade management processor; Assisted team supporting current-generation lifecycle by fixing defects and implementing customer feature requests
• Assisted bring-up and boot into Linux for prototype board, personally responsible for enabling flash read/write utilities for ECC-protected NAND flash part
• Implemented firmware application and API to load and store system configuration files to NAND flash part
• Produced documentation for NAND flash storage utility and API for future use in the development lifecycle
• Ported previous-generation firmware to new platform, resolving hardware and compiled differences by designing a Hardware Abstraction Layer and API in C/C++
• Conducted feasibility study on Controller Area Network (CAN) as an IO/serial expander bus

Houston, TX, US

• Designed low-noise, high-gain instrumentation amplifier and electronic stethoscope device for web-enabled telemedicine kiosk
• Created User Datagram Protocol (UDP) streaming backend for sending realtime stethoscope audio to doctors over the internet

Houston, Texas, US

• Worked on team designing a high-resolution oil prospecting sensor and controls for field technicians
• Identified priority scheduling improvements and processor optimizations in C/MATLAB to prevent real-time data collection thread from being starved by Matlab analysis process
• Modified technician software to improve thread priorities, and added a graphical resource monitor in C# to technician terminal program

Houston, TX, US

• Worked at the English department’s tutoring center providing writing consultations for peers andinstructing a remedial technical communications course
• Improved the writing ability of incoming-freshman with focus on clear, concise technical documents
• Advised peers from the engineering school on their technical writing and documentation