Freelance consultancy, electronic design, systems engineering, project management and marketing in the space and aerospace sectors.I continue to consult, design and manage projects in the data handling and communications aspects of the space sector. Notable projects were the International Space Station, Mars Express, Beagle 2 and have and contine to play a key role in UK government space programmes.For a large part of this period (2004 to 2011) I was a full time member of the Zephyr solar electric high altitude long endurance UAV programme culminating in the 2010 record braking endurance flight. Formal roles included technical management of the autopilot and control aystems, ground segment for control, navigation and payload operations, communications and optical payloads and air safety subsystems. I was also part of the overall design and trials team, participating in trials in Australia and the USA and involved in the design of all aspects of the aircraft.Continued in my involvement, as Deputy Director for Space Internetworking of the Consultative Committee for Space Data Systems, in development of disjoint/delay tolerant network protocols for ad hoc networks of e.g. spacecraft and UAVs. I continue to participate in the area of space communications standardisation through CCSDS.I am the co-author of the data handling section of the standard text book "Spacecraft Systems Engineering"

Lead pre-sales engineer for Airbus Unmanned Aerial Systems. Present emphasis is on payloads, capabilities and missions for the Zephyr solar electric High Altitude Pseudo Satellite (HAPS)

Overall resposibility for payloads bound for the Zephyr HAPS Platform

Technical Authority - SSTL X series satellites, the ground-up redesign of SSTL's core small satellite product.Work Package Manager - Small geostationary satellite power system

Founded, along with two partners, ESYS Ltd to provide consultancy to the space industry. ESYS grew in this period to a 40 strong staff delivering a wide range of services including technical consultancy, market assessment and project management to the majority of space companies in Europe.Developed a special interest in data communications and internetworking, co-developing several innovative communications protocols for operating in challenging environments in space, battlefield and aeronautical sectors.

Consultancy and marketing in the aerospace sector.

Design engineer and team leader engaged in design of the Intelsat 120Mbps TDMA ground segment.

Systems engineering on Rapier missile system. Electronic design of 1553 ground support equipment.