Steven Merrifield

Responsible for hardware design and embedded firmware for safety critical railway signalling products. - Schematic design and PCB layout using Altium Designer - Implemented two-out-of-two (2oo2) composite fail-safe micro-controller systems in accordance with EN50126, EN50128, EN50129 satisfying SIL4 safety regulations - Developed embedded C applications and low level device drivers in accordance with MISRA C safety guidelines - Developed hardware and software for Automatic Test Equipment - SMD prototype assembly and debugging - EMC compliance testing in accordance with EN50121 and EN61000

Responsible for the development of avionics hardware and embedded firmware for commercial and military aircraft. - Schematic design and layout of multi-layer, high-density PCBs using Altium Designer for a range of airborne platforms in addition to ground-support equipment. - Development of more than fifty (50) FPGA IP cores using VHDL for interfacing with a wide variety of peripheral devices plus ARINC and MIL-STD communications protocols. - Component level hardware debugging and validation, SMD soldering and rework, development of embedded C firmware for automated board level testing. - Creation and implementation of DO-254 compliance documentation along with firmware verification and testing in accordance with CASA, EASA and FAA requirements. - MIL-STD-810 and MIL-STD-461 environmental testing. - Frequent international travel providing on-site technical support and training for defence clients.

Short term contract development of WiFi-enabled sports scoring system using IoT Electric Imp cloud-based architecture. Successfully delivered a fully operational prototype in less than four weeks.

Hardware and software development of seismic detectors for earthquake and blast monitoring. - Schematic design and PCB layout using Altium Designer (fine pitch BGAs, low noise analog) - VHDL firmware for Xilinx FPGAs, MicroBlaze embedded CPUs - Embedded Linux firmware and kernel device drivers (ARM9)

Short term PCB design contract using Altium Designer for Zigbee wireless security products.

Hardware and embedded firmware for commercial security and access control products. - Schematic design and PCB layout using Protel / Altium - Embedded firmware development (PIC, 68xx assembly) - Embedded Linux firmware and kernel device drivers (Motorola ColdFire) - CISPR 22 / EN 61-0000 compliance testing

Hardware design for Ford Falcon Instrument Clusters and Toyota Camry Climate Control - schematic design and PCB layout using Mentor VeriBest.

Construction and testing of high frequency radar studying the ionosphere over Antarctica.

Presented VHDL and Embedded Systems courses to final year engineering students.

126 Signal Squadron, 1 Command Regiment, Australian Special Forces.

- Dean's Commendation for Outstanding Academic Achievement. - Nokia Telecommunications Electronic Engineering Award for the best Final Year Thesis.