Sean H. Email & Phone Number

Remote

San Francisco, California, US

• Working with XFN partners to define/deliver a firmware update solution to accommodate external and internal components/systems while addressing operational needs of the autonomous fleet
• Leading migration to a common, embedded Linux OS using Yocto Project based development including defining the SCM and the CI/CD systems for these efforts
• Working with HW team to co-design solutions that fully meet system requirements while minimizing long-tail SW NRE
• Helping to drive system design by creating requirements and design documents
• Reviewing code pull-requests and mentoring junior engineering on best practices

Austin, TX, US

• Responsible for firmware design and implementation as part of a dynamic startup building a complex, wearable product for consumers the communicates over BLE
• Supported manufacturing and bring-up of custom hardware built around an ARM based SOC with BLE and several sensors
• Specified and integrated developer tools for rest of the firmware team
• Specified and created CI build infrastructure for firmware team
• Developed device drivers for SOC and sensors
• Worked directly with CTO to prioritize feature development and schedule

Sunnyvale, CA, US

• Worked on flash-based, headless products for consumers (Alexa devices)
• Supported manufacturing and bring-up efforts
• Integrated driver support from vendor into codebase for Echo products
• Spear-headed investigation into alternate approach to build custom Linux to replace Android base

• As part of AWS, on a team of five, built a Linux-based software stack used to provide network access and management of a custom machine learning accelerator (MLA) chip built by AWS (multi-tenet cloud environment)
• Supported bring-up of first silicon revision of MLA chip including muxed GPIO support for control signals via standard linux interfaces

Austin, TX, US

• Responsible for firmware design and implementation as part of a dynamic startup that is building a complex, network attached product to handle cryptocurrencies for consumers
• Working on bring-up of prototype hardware built around multiple SOCs, including an ARM Cortex M4 MCU and a MIPS AP
• Specify and integrate developer tools for rest of the firmware team
• Specifying and creating the build infrastructure for both MCU and AP
• Creating device drivers for MCU and AP
• Providing technical review and mentorship to junior engineers on the team

• Represented company publicly with the OpenEmbedded and the Yocto project open-source software communities
• Developed Bitbake recipes and code for the Mentor Embedded Linux (MEL) product
• Developed code for customers as part of services engagements, including BSP ports and user-space integrations on custom hardware
• Provided technical leadership and contributions as a trained Scrum Master and as an architect for multiple product development and services teams within the Mentor Embedded division
• Provided technical review and analysis of peer architects’ projects included firmware update stacks, secure boot stacks, and IoT frameworks
• Provided technical guidance and mentorship to junior engineers on the team

Round Rock, Texas, US

• Used Agile (SCRUM) methodologies to develop embedded Linux firmware on an AMCC PPC based SOC used in the Dell Chassis Management Controller(CMC) including:
• Power management algorithms for chassis-wide power allocation and fault recovery
• Extensible, custom restricted shell for customer facing CLI
• Generic hardware/software entity manager
• Dell proprietary serial bus handling and error reporting
• In circuit programmer utilities

• Worked on Sigmatel’s system on a chip (SOC) microprocessor for multimedia platforms.
• Developed strategic device driver support to enable customers to produce products using Sigmatel chips.
• Provided direct assistance to customers developing products with the Sigmatel SOC.
• Created customer documentation related to developing with the Sigmatel SOC.
• Debugged critical defects in system level software and related hardware.
• Interfaced with internal/external customers and other disciplines to ensure goals were met.

Falls Church, VA, US

• Developed C++98 code with UML tools and cross-compiled on PC’s for PowerPC targets.
• Worked on a DoD integrated avionics system.
• Provided technical leadership as the OS/Tools lead for a geographically split team with ten members that was developing a proprietary middleware on top of Green Hills Integrity RTOS to support application software.
• Interfaced with internal/external customers and other disciplines to ensure goals were met.
• Participated in project planning, scheduling, and coordination.
• In-Active DoD Secret/SAR clearance.

• Worked on a new, large-scale DWDM product in a dynamic start-up atmosphere.
• Used object oriented methods to design and develop real-time, embedded software, in C/C++98 and PowerPC assembly, for custom hardware running on Enea’s OSE RTOS.
• Key areas that I designed and developed code for included: provisioning, alarms, adaptation layers, DB interfaces, and a pseudo-ppp link-layer driver.
• Developed code and cross-compiled for target boards on Solaris workstations.
• Debugged code using low-level ICE and high-level debuggers.
• Developed UNIX shell scripts to automate code validation.

Espoo, Southern Finland, FI

• Worked on a technology refresh of a large-scale cross-connect.
• Promoted three times in four years and given several awards for technical excellence.
• Provided mentorship to new contributors.
• Used OOA/OOD methods to perform full software life-cycle development including: requirements capture, design, implementation, integration, and test.
• Designed and developed real-time, embedded software, in 68K assembly, C, and C++, for custom hardware running on pSOS RTOS.
• Developed code and cross-compiled for target boards on SunOS/Solaris workstations.

CA

• Worked on a technology refresh of a large-scale cross-connect.
• Promoted three times in four years and given several awards for technical excellence.
• Provided mentorship to new contributors.
• Used OOA/OOD methods to perform full software life-cycle development including: requirements capture, design, implementation, integration, and test.
• Designed and developed real-time, embedded software, in 68K assembly, C, and C++98, for custom hardware running on pSOS RTOS.
• Developed code and cross-compiled for target boards on SunOS/Solaris workstations.

Master Of Science - Ms, Computer Engineering

Bachelor Of Science - Bs, Computer Engineering