Terry Yoder Email & Phone Number

Folsom, Ca

Developing SSD firmware

Folsom, Ca

Designed, developed and documented firmware for NVMe SSDs. Chip sets included Marvel's NVMe controller and Tidal Systems controller. Development environment included Greenhills Multi, compiler, trace, time machine, and uvelocity RTOS on ARM cores. Developed IO path firmware, messages and queues which coordinated across multiple cores. Implemented multiple tasks which interacted using message queues, event flags and mutexes. Developed media scan state machine for Data Retention scanning. This included designing, documenting and developing the scanning control task as well as algorithms which followed Media Architectural Group's specifications.Developed garbage collection and folding tasks and algorithms. Algorithms followed Architectural specifications. Implemented and documented several Vendor Specific commands in coordination with Functional Test team.

Roseville, Ca

Developed and maintained ARM firmware for Converged Network Adapter (CNA) which offloaded iSCSI, FCoE, RoCE (RDMA over Converged Ethernet), NIC and SR-IOV. Language was C and RTOS was Nucleus. Tools include gdb debugger, subversion SCM and Bugzilla bug tracking.Developed and updated documentation for firmware specifications, API specifications, test plans and equipment configurations. Lead engineer of EVT (Engineering Verification Test) team that verified iSCSI target features. Developed automation tools in C/C++ (linux userspace), python and bash scripts. Used Wireshark and Finisar Xgig for Ethernet packet capture and analysis, Medusa for iSCSI I/O traffic generation, and IOmeter for iSCSI I/O. Scripting utilized APIs for open iSCSI (linux), Microsoft iSCSI (Windows) and Medusa. Worked closely with cross functional team - linux driver developers, system test, firmware, ASIC and program management - to isolate bugs and ensure compliance. ASIC was successfully released in January 2014.

Roseville, Ca

Maintained userspace and kernel software for x86 wireless controller which used embedded linux. Controller was PC blade that integrated into switch chassis. Developed minimal “live” Ubuntu linux image used for diagnostics and support of controller. Effort included generating image using debootstrap utility, modifying and creating udev rules, partitioning flash disk, generating file systems and modifying initramfs. Developed and integrated C modules, python modules and bash scripts to provide blade diagnostics, image installation and FRU (field replaceable unit) management. Worked with hardware designers during board bringup and manufacturing for FCT (Function Circuit Test) support. Lead team as Scrum Master using a lighter version of Agile.Tool chain included gdb debugger, git for SCM and Quality Center bug tracking.

Roseville, Ca

Developed, documented and maintained firmware for iSCSI HBA (Host Bus Adapter). System ran MQX RTOS on ARC processors and used Metaware debugger. Implemented IPv6, DHCP, SLP, iSNS and sockets. Worked closely with OEM customers to design and develop custom features for DHCP and IPSec. Integrated third party IPSec ASIC as bump-in-the-wire on iSCSI HBA (Host Bus Adapter). Developed firmware to initialize IPSec ASIC using vendor’s proprietary protocol.Prototyped virtualized linux kernel device driver for iWarp (RDMA over TCP/IP). Tool chain included Metaware and gdb debuggers, SourceSafe for SCM and Remedy for bug tracking.

Roseville, Ca

Developed multiple linux daemons for high speed stock trading system. Responsible for entire life cycle: design, development, documentation, test, production rollout, upgrades and trouble calls. System emphasized speed, reliability and scalability. Peak utilization was 145 million NASDAQ shares transacted in one day (6% of NASDAQ volume).Coded in C, C++ and Java. APIs included TCP sockets and Sybase. Tools included gdb debugger, CVS for SCM and Soft-front for bug tracking.

Roseville

Developed C firmware for NAS (Network Attached Storage) appliance using vxWorks RTOS on PowerPC. Toolset included JTAG probe, Greenhills debugger and Clearcase for SCM.Developed C firmware for managed Ethernet hubs and switches using vxWorks RTOS. Modified TCP/IP stack, enhanced DNS, DHCP and Telnet, and implemented IPX and Token Ring. Toolset included Clearcase and RCS for SCM.Successfully trained entire firmware department in vxWorks RTOS. This included preparing material, supporting labs and giving lectures.

Bachelor'S Degree

Bachelor'S Degree

Master'S Degree