From Hentschel
Jump to: navigation, search
Thomas Hentschel

5674 Marlin Dr.
Discovery Bay, CA, 94514
Cell : (925) 577 7761

Email : thomas<at>hentschel<dot>net

Career Objective: Provide solutions as a Software Architect / Senior Developer to technical challenges in the real-time control, embedded or IoT software industry.

2012 - present Software Architect, Sr. Staff Software Engineer
Lam Research Corp., Fremont, CA (Semiconductor Equipment Manufacturer, S&P500, NASDAQ:LRCX)
Novellus Systems was acquired by Lam Research, and I was part of the transition evaluation team assisting software management in fact finding/decision making regarding merging of the two software organizations and their utilized technologies. In addition, I designed and implemented various components to create integrations for the three Software Control systems in use, primarily on the realtime control side, including:
Software development of several hardware control systems using EtherCAT running on WindRiver vxWorks. The systems implemented a hard realtime script engine based on an vendor specific protocol; embedded C/C++ and SmallTalk
Development of High-Speed Data Acquisition system connecting different field bus types to the data storage system, implemented in C++ and Java
Bridging SmallTalk based control system to more modern systems using MQTT + Java applications
2000 - 2012 Software Architect
Novellus Systems Inc. San Jose, CA (Semiconductor Equipment Manufacturer, S&P500, NASDAQ:NVLS)
Principal architect of the next generation, distributed equipment control framework for the entire product line of the company.

This distributed framework uses several types of Java/JVM's, including Embedded/RT-Java.
Objectives for the control side was emphasis on high reliability and scalability, but also had to enable easy integration of a large variety of motion controllers and process control devices in an easily extensible manner.
The data acquisition side needed a highly scalable data transmission and storage system for 1MM+ I/O updates/second. In addition, objectives was enabling integration of external software components and libraries into finished end-user applications.
I was responsible for the software architecture and the technical leadership in this $12+ Million, 50+ man year project, being used in production since 2007.
Along with the system architecture, I was in charge of the design and partial implementation of the realtime control components, I/O interface, configuration management, factory interface, SEMI Interface A development, data acquisition, wafer sequencing, etc.

1997 - 2000 Sr. Software Engineer
Novellus Systems Inc. San Jose, CA (Semiconductor Equipment Manufacturer, S&P500, NASDAQ:NVLS)
Machine control software development under QNX for a real-time, networked environment developed in C.
Software design/architecture for a new wafer sequencer, which led to multiple patents (US 6,889,110 B1)
1994 - 1997 Field Service Site Coordinator
Novellus Systems Inc. San Jose, CA (Semiconductor Equipment Manufacturer, S&P500, NASDAQ:NVLS)
Responsible for building a field support group at a new overseas customer site.

This included installation and maintenance of semiconductor manufacturing equipment and hiring and training of local Service Engineers.
Developed, tested and deployed maintenance procedures yielding doubling in equipment uptime.
Assisted process development and integration, developed software changes for a new PoR (Semi: process of record) at a customer site.

1993 - 1994 IT Coordinator, System Administrator
Draexlmaier Group, Niagara Falls, N.Y. (Automotive Supplier)
Analyzed, planned and installed MRP system at automotive supplier with manufacturing locations in Mexico and parent company in Germany which resulted in a large improvement in warehousing accuracy.

Designed network for AS/400 based accounting system, PC-based engineering network, UNIX based warehouse system and several UNIX based manufacturing tools to eliminate redundant data entry.

1991 - 1993 Software Engineer
VHF GmbH, Schoenaich, Germany (Software Development Company)
Design/implementation of layout and fill functionality for an ECAD application under NeXTStep.


Diplom-Ingenieur (FH), FHTE - University of Applied Sciences, Esslingen, Germany (comp. to U.S. MSEE), graduated January 1993.

Skills / Knowledge

  • Programming languages: Java, RTJava, C, Objective-C, C++, Tcl/Tk and extensions, Python, JS, Lua
  • Field Bus: EtherCAT, DeviceNet, RS-485, USB
  • Operating systems: QNX, WindRiver vxWorks, Linux, RT-Linux, Free/OpenBSD, Windows
  • Embedded Frameworks: RTSJ (Real-time spec for Java), Embedded Java, J2ME, WindRiver Workbench
  • Networking: TCP/IP, HTTP, Websockets, DNS/BIND, REST, MultiCast
  • GUI programming: SWT, GWT, NextStep/OpenStep
  • Application Frameworks: OSGi, Eclipse, OpenHAB, Node.JS, Node-RED


  • Brewing Beer (in my Garage)
  • Participating in Open Source Software projects (OpenHAB, BrewPi, Node-RED, KODI, FreeBSD) (Github Repository)
  • 3D printing
  • Home Automation (my + my friends houses)
  • Certified pilot for single and multi-engine airplanes (not currently active)
  • Cold War History

Nationality and Status

  • I'm a German national with a permanent resident (green card) status living in the U.S. I'm fluent in English and German and can read and understand some Russian.
  • My current position permits me to telecommute more than 80% of my work hours. I have been doing this for the last 20 years. I would prefer a position in a company that allows and encourages telecommuting on a regular basis.

References will be supplied on request. Please email me at thomas<at>hentschel<dot>net