Contract Engineer Electrical Engineering

Brynn Rogers

612-***-**** ********@*****.*** Jordan, Minnesota

Professional Summary:

Engineer with broad experience from design concept to production. Schematic design, board layout, firmware (bootloaders, etc), realtime control system software, electromechanical design (on ARM M4), to designing and programming a GUI in python/kivy running in linux on a raspberry pi. Directed other contract engineers and techs on many projects as the engineering partner of our contract engineer business.

https://www.lexionmedical.com/pneumostability is an example of all these skills – all software and electrical engineering of this product is my work.

Skills:

C/C++, Python,(many), Linux, FreeRTOS,bare metal, Altium, Git, Vast embedded microprocessor experience, many ARM 4 systems designed and built, Mentoring junior engineers, Brainstorming out-of-box solutions. CAN bus, Modbus, TCP/IP client/server protocols

Work Experience:

Lexion Medical Contract Engineer 8+ years

- Designed and implemented all electronics and software for Operating room device which includes:

- Control Circuit board using ARM M4 CPU (K22FX512 from freescale)

- Programmed with C and FreeRTOS

- Can Bus communication for inter-operating room networking

- switching power supplies for CO2 humidification, backup battery charging, 5v and 3.3v supplies

- Real-time control of CO2 pressure and flow

- Graphical User Interface using 7.2 in LCD and raspberry pi running linux,

- written in python and Kivy, communicates with Control board serially

– The competitor's device needed 30 man-years of engineering, Our device has greater capability and took

– 2 man-years of my time – a 15x savings

Automated Control Systems 49% owner / chief engineer 6 years (some overlap above)

– Mentored and oversaw other engineers when projects were too large for one engineer.

– Created more than a dozen different embedded systems from schematics and PCB layout using Altium

– Software and Firmware designed and implemented for these devices

– some had stepper motors, BLDC motors, solenoids, A/D converters, and/or many different sensors

– some were battery powered, some run off AC line power or generic DC supplies.

– An automatic fuel additive dispenser for Semi-trucks. Included CAN bus for communication. Education:

Bachelor of Science in Computer Science (University of Minnesota)

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