Independent contracting providing hardware and firmware design to help customers realize their embedded needs. Experience spanning several industries including consumer, industrial, defense, and advanced research.• Embedded real-time system design• Expertise in wireless and IoT hardware and software products• Embedded firmware in C/C++ using bare metal or various RTOS (Zephyr, FreeRTOS, etc.)• Schematic capture and PCB layout in Altium, KiCad, and other eCAD packages• Embedded Linux development including Yocto, Kernel and driver development, bootloader, and application development• Rapid prototype of new product ideas to help iterate and find your product market fit quickly• And more! Reach out if you need help with your next embedded project.https://www.farixembedded.com/

As the resident hardware guy at Circuity Happy I work with Ed Guild making modular Eurorack synthesizer modules. My work encompasses hardware and software architecture, overseeing internal technical systems, and hands-on design and development of our products' hardware and firmware. It's great getting to make products for such a creative and passionate user base.

• Engineering lead on yet to be released feature in upcoming 3d printer: • Broke down work, coordinated with other engineering resources, lead status update meetings • Architected and implemented C++ application targeting embedded ARM Linux • Design, schematic capture and PCB layout in Altium, and bring up of PCBA including USB 2.0, I2C, and LED drivers.• Advised in a consultation role on improvements to Yocto based embedded Linux distribution to improve stability, developer efficiency, and maintainability• Assisted with compliance on upcoming product incl.uding software readiness, coordination, and emissions testing.• Contributed code to support new peripherals in upcoming products on bare metal firmware running on NXP LPC microprocessors.

Lead firmware architecture and development efforts for Silvertree's Reach active senior wearable product.• Architected and developed firmware based on Zephyr RTOS targeting Nordic Semi NRF52840 BLEand NRF9160 LTE chips. • Participated in the Zephyr RTOS open source community through discussion and patch submission upstream.• Modified vendor firmware for DA1600 WiFi chip based on FreeRTOS.• Lead effort and implementation with other engineers of a CoAP and Protocol Buffers based communication system to Reach's needs in a constrained execution, low power, and cloud interoperable environment.• Implemented automated test framework improving quality and agility including CI pipeline, host side unit tests, and hardware-in-the-loop testing.• Did design, schematic capture and PCB layout in KiCad, coordinated fabrication, and did partial population of a pogo pin debug fixture to enable development and automated test.• Held talks within the company sharing best practices around firmware test automation and open source software usage.• Mentored and broke down work for entry level firmware engineers.

Owned the design of hardware for modular synthesizer products with Circuit Happy. Generally, making rad stuff and getting it out in the world to make some noise.• Hardware design of new products include the ML:2• Interface with contract manufacture for volume production• Defined process and designed hardware and software for production QC and programming of units

• Developed a new system design for an STM32 based system to cost-down Alert's customer delivery robot system. Worked with STM32, load cells and sensors, RFID, UART, etc.• Worked with other principal engineer to design and implement a new scalable communications framework between back end computers and embedded systems. Worked with MQTT and an in-house serialization/deserialization wire format.

LEADERSHIP• Lead of five person firmware team (including self)• Mentor junior engineers through weekly one-on-one meetings, task selection and breakdown, and technical education• Foster a team culture of continual process improvement by facilitating frequent lightweight retrospectives• Scope effort of new projects and communicate to senior management to enable key program decisions such as staffing and timelinesSOFTWARE• Lead architect of embedded Linux distribution using the Yocto project• Implement BSP for new hardware platforms (U-boot, custom Linux drivers, porting vendor code)• Develop and maintain C++ micro-service architecture that provides abstraction between BSP and Application development• Implemented bare metal firmware on Coretex-M0+ including user interface, capacitive touch, system power management, LED driver IC, buttons, etc.• Designed and implemented automated CI test system based on Raspberry Pi and custom hardware instrumentation allowing for earlier bug discovery, scalability with multiple products, and increase frequency of release from 2+ months to bi-weekly• Migrated CI build system from a one-off machine to Amazon EC2 cloud which removed the build system as a development bottleneckHARDWARE• Define system architecture and key components of new products in collaboration with PM and EE, taking customer needs and other trade-offs into consideration• Designed Cortex-M based user interface PCB for use in next generation product• Schematic capture, PCB layout, and hand board population for in house test fixures and development boards• Board bring-up of custom hardware and debug of complex design issues resulting in prescriptive hardware and software changes• Drive technical relationship with hardware vendors to solve issues, select parts for future products, and keep aware of industry trends• Designed and integrated factory programming and test fixtures and debugged line bring-up at domestic contract manufacturer.

• Developed embedded firmware targeting a portable medical diagnostic system with ARM and PIC processors using FreeRTOS and uCoS RTOSes..• Diagnosed and debugged hardware design issues during board bring-up and recommended corrective design options.• Designed and implemented user interface engines, drivers and automated hardware unit testing.• Sequenced real-time motor and electrical operation for performing assay.• Interfaced with various peripherals over SPI, I2C, and UART including GSM cellular modem, SDCards, debug terminal, etc.• Involved with failure mode effects analysis of firmware for medical certification.

• Implemented custom software defined radio application using Ettus Research hardware. Designed real-time FPGA DSP, modified existing Ettus drivers, wrote client/server model host software. Integrated GnuRadio signal processing.• Implemented FPGA based multi-channel arbitrary waveform generator on COTS hardware. Maintained Linux PCIe driver. Designed real-time I/O system for RF system control interfacing with various GPIO, SPI and I2C devices.• Hardware lead for electronic warfare system consisting of 3 Virtex-5 FPGAs with multi-gigahertz ADC and DAC. Devised and implemented real-time signal processing algorithms in Matlab followed by implementation targeting FPGAs. Participated in logistics planning and execution of several airborne field test events.• Involved with various extracurricular technology innovation challenges including novel applications of Android devices for national defense and development of visual tracking algorithms for autonomous quadcopter operation.

• Maintained codebase for legacy MSP430 based digital control system. Engineered two revisions of FPGA based mobile locator hardware from specifications through field testing.• Wrote Microblaze targeted BSP for custom FPGA board supporting SPI, I2C, UART and GPIO components on top of a custom real-time scheduler.• Worked closely with PhD candidates to implement MEMS inertial/gyro/magnetometer tracking hardware to improve system accuracy.• Learned complex system design, embedded system implementation, working efficiently in a team, rapid debugging and prototype evaluation. Evaluated high level system specifications and design, selected parts, engineered embedded firmware design, integrated RF circuitry and FPGA HDL design for high speed real-time applications.

• Designed and implemented a web-based test harness for pre-scheduled management of nightly build testing using PHP, Perl and TCL.• Developed and implemented a state based interactive menu system in C++ for the front panel of Certeon’s network acceleration appliance.