Simon Raybould

Developing new Firmware platform for industrial and domestic smart metering products. • Real Time Embedded software in C++ and ThreadX RTOS. • MISRA C++. • SOLID Principles. • Uncle Bob's "Clean Code" Principles. • Test Driven Development (TDD). • Unit Testing with Google Test and Google Mock. • Continuous Integration.

- Developing embedded instrument software for several medical diagnostic instruments using C++ and VxWorks RTOS. - Safety Critical Software Development - Developing C++ & C#/.NET Windows client/server applications. - Developing Automated Unit Test framework, scripts and client software for embedded systems. - Agile Scrum Methodology. - Scrum Master for a multi-platform software development team.

Developing real-time embedded firmware for the Aastra Telecom range of PBX systems and SIP desk phones. This involves analysis and designed using UML and Rational Rose, through to implementation in C/C++ and using the STL. At Aastra I was responsible for developing the SIP User Agent for the Aastra 400 range of PBX systems.

Integrated a third party TCPIP stack into the PXB and wrote the device driver to make that work over the new Ethernet interface. Developed an SMPP library to add Short Message Service (SMS) support to the PBX.

Developed tool set for new range of DSP chips for phones and MP3 players. The toolset included a C/C++ compiler and an assembler. This work mainly involved working with UML, Design Patterns, Flex, Bison and C++. The tools were designed to run in a UNIX/Linux environment.

Developing real-time embedded firmware for the Aastra Telecom range of PBX systems and SIP desk phones.

Developed real time embedded firmware for several products including passive optical network equipment and line concentrators, call control systems and protocols etc. I was responsible for the implementation of several communications protocols including X.25, DASS2 & CAS. I was also part of a small team that developed the "Software Architecture" which separates the application from the operating system, making the application code target independent.

Developed UNIX device drivers for AT&T UNIX System V R3 & R4. Developed embedded firmware for primary rate analogue line concentrators. Implemented several communications protocols including X.25 and DASS2.