John van Heteren
Physics graduate from University of Victoria, MSc from University of Toronto and PhD degree from UC Berkeley. 10+ years experience as scientist/engineer in hardware, software, system engineering and management. Now Manager at Varian Medical Systems.
| Headline: | Engineer |
| Groups: | BASES |
| Interested in: | Consulting opportunities, Finding team mates, Meeting new people, Providing services to startups, Trading services |
| Schools: | University of California System - Berkeley, University of Toronto, University of Victoria |
WORK EXPERIENCE
| Employer: | Varian Medical Systems |
| Position: | Manager, New Delivery Systems |
| Time period: | January 2004 - Present |
| Description: | Varian Medical Systems designs and manufactures radiation therapy devices for cancer treatment.
- About 50 scientists, engineers and technicians report up through me. - Guided Project and Functional Managers in the concurrent development of two major products. - Worked with other departments to manage, plan and assign regulatory submissions (per CFR 820.30 and ISO 14971), manufacturing transition, field service training and documentation. - Guided managers of Mechanical Engineers, Electrical Engineers and Firmware Engineers in creating deliverables necessary for the FDA-compliant manufacture of a complex electro-mechanical system. |
| Employer: | CellNet |
| Position: | Project Leader and System Engineer |
| Description: | - Conceived and wrote the Marketing justifications, Architecture specifications, and Patent application of an Internet Appliance projected to reduce WAN deployment costs by 90% or to increase system bandwidth by 100x at same deployment and operating cost.
- Reverse-engineered documented and “hidden” aspects of CellNet's system to create the first system view of network limitations. - Led 7 local and internationally based engineers in the design and release of an interface between a 3rd party system and legacy CellNet software. Ensured project met budget with everything documented. - Led several engineers characterizing data throughput bottlenecks; published the configuration that increased throughput by 3x without requiring extra resources. |
| Employer: | InVision Technologies |
| Position: | Manager, System Engineering |
| Time period: | January 2002 - December 2004 |
| Description: | InVision designed and manufactured CAT-scanner based explosive detection equipment for airport baggage screening. In 2004 InVision was purchased by GE Security.
- Created the newly formed System Engineering group and created its first Technology Roadmap. - Introduced System Requirement Documents to InVision and got buy-in to their role. - Managed and contributed to the brainstorming and preparation of government R&D proposals. - Co-created and led the Intellectual Property Review Board to manage and encourage patent activity. |
| Employer: | SchlumbergerSema and CellNet Data Systems Inc |
| Position: | Director, Product Management |
| Time period: | January 1997 - December 2002 |
| Description: | SchlumbergerSema is a global IT consulting and services company. The Real Time Energy Management division generates over $100M annual revenue. As the Director of Product Management with up to 5 highly educated staff (MBA, MSc, and PhD degrees), our challenges encompassed the specification, coordination and prioritization of multiple inter-related development projects. CellNet was acquired by Schlumberger in May 2000. In March 2005, the group became independent as “Cellnet” based in Atlanta.
- Led the Return-on-Investment analysis & prioritization of over 80 development projects, and guiding the feature specifications for up to 25 concurrent inter-related projects. - Created and managed a quantitative process to achieve consensus amongst many executives on the relative priorities and resource allocation of projects developed at 4 different facilities. - Led the negotiation process of partitioning large customer requests into sub-projects for HW, SW and System Engineering departments. - Developed a multi-variate numerical cost model (best seen with a 3-D display) to show executives the optimum network deployment strategy at different proposed sites. |
| Employer: | Telegen Corp |
| Position: | Technical Marketing Manager and Senior Software Engineer |
| Time period: | January 1996 - December 1997 |
| Description: | Telegen was a pre-IPO startup that had developed and sold a collection of remotely programmable telephony control devices. The challenge was to adapt older equipment to a new Operating System and to find viable business opportunities for the system. Telegen entered Chapter 11 bankruptcy in late 1997.
- Wrote and debugged a Visual C++ program to control Telegen's communications field devices. Proved that half cost off-the-shelf components could replace some of Telegen's custom components. - Led brainstorming sessions with Marketing Director and partners to specify potential new products. |
| Employer: | Toshiba America MRI Inc. and Diasonics MRI Inc |
| Position: | MRI Scientist III (MRI = Magnetic Resonance imaging) |
| Time period: | January 1986 - December 1996 |
| Description: | Toshiba America MRI Inc designed Magnetic Resonance Imagers (MRI) for hospital and mobile (truck) environments. My challenge was to improve image quality through hardware and firmware design changes. Where appropriate, I published my results in peer-reviewed scientific journals and conferences.
- Conceived of and executed original research into feasibility of using High Temperature Superconducting (HTS) material for MRI RF coils placed around human patients. This was the first demonstration of HTS induced Signal-to-Noise improvement in human images. Reported an SNR improvement of as much as 2x in both peer-reviewed journals and conference presentations. - Led design of hardware, firmware and drivers of a multi-tasking RTOS 68332-based embedded MRI RF coil control and data acquisition system. Resulting system cost 20% of previous generation. - Designed and led an RF signal synthesis, amplitude and phase modulation circuit that incorporated features that resulted in a patent. Even with the addition of new features such as phase modulation, resulting system cost 20% of the previous version. - Researched and designed all algorithms, firmware and part of hardware for a multi-axis motor-controlled high power RF coil tuner that sped up tuning process by 15x over the previous design. - Developed various RF coil analysis algorithms for regular laboratory use. Solved an MRI RF Coil coupling problem with SPICE analysis and confirmed with experimental verification. This novel analysis resulted in a peer-reviewed conference presentation and a circuit with 15dB greater isolation. - Designed the algorithms, firmware and hardware of an 8051 micro-processor based RF circuit controller. Devised a recursive-bisection algorithm to tune multi-parameter RF coils. This was the first system released by Diasonics that tuned the RF receive-coils entirely by computer. |
EDUCATION
| University: | University of California System - Berkeley |
| Time period: | 1994 |
| Degree: | Bioengineering, PhD |
| University: | University of Toronto |
| Time period: | 1986 |
| Degree: | Medical BioPhysics, MSc |
| University: | University of Victoria |
| Time period: | 1983 |
| Degree: | Physics, BSc |
PUBLICATIONS
| Papers: | See web page ( http://web.mac.com/vanhet/jgvh-full-resume.htm,) for details on 7 patents and 20 peer-reviewed research papers and conference presentations. |
