Johannes WalterDigital Circuit Designer
Design Verification Engineer
Software Developer

A Dedicated Engineer
Located in San Francisco

I came from Austria to Switzerland and now to the United States, continuously looking for new challenges and adventures.

  • If you are looking for some specific information,
    feel free to drop me a line —


Due to an ever growing interest in technology, I dedicated my professional life to engineering and currently work for Ettus Research, a National Instruments Company, after contracting with my own business to the European Organization for Nuclear Research (CERN). My day to day tasks are focused on digital design and verification, along with software development for the amazing Universal Software Radio Peripheral (USRP), a market-leading Software-Defined Radio. And by night I'm building cool electronics for even cooler particle accelerators. However, I am generally into all topics regarding embedded systems and integrated circuits, as well as the corresponding software. My ideal work day includes a mix of hardware and software development and I get particularly excited when these two fields intersect.



Ettus Research (National Instruments), Santa Clara, California
FPGA and Software Design Engineer

Work on an R&D team building the Universal Software Radio Peripheral (USRP), a market-leading Software-Defined Radio (SDR). Design Verilog components to interface with high-speed RF transceivers and AXI4 IPs on Xilinx FPGAs. Build self-checking testbenches in SystemVerilog with constrained-random stimulus generation and perform coverage closure. Write Linux user-mode device drivers in C/C++ and C firmware for a SuperSpeed USB controller.


European Organization for Nuclear Research (CERN), Switzerland
Digital Design and Verification Engineer

Worked with the team as external contractor through my own business, Greenshire Systems, since October 2014. Improved radiation effect mitigation in the Large Hadron Collider (LHC) power converter control electronics. Designed radiation tolerant VHDL components, e.g. FIR filters for ΔΣ ADCs, and collaborated with the PCB design team. Performed functional verification with SystemVerilog/UVM/SVA and radiation tests to determine circuit reliability.


Electronics Engineer

On an engineering team for the MedAustron cancer treatment project which operates an ion beam therapy center. Developed an FPGA-based interface PCB to ensure reliable communication over fiber optic links for the regulation loop. Wrote software in C/C++ for programming FPGAs remotely over Ethernet and SPI.



Master of Science — Embedded Systems Design

Upper Austrian University of Applied Sciences Hagenberg


Bachelor of Science — Hardware/Software Systems Engineering

Upper Austrian University of Applied Sciences Hagenberg

Hardware Engineering

  • VHDL

  • SystemVerilog

  • UVM

  • SVA

  • SystemC

  • PCB Design

Software Engineering

  • C++

  • C

  • Python

  • Scripting

  • Web

Language Skills

  • German

  • English

  • Italian

  • French

Personal Skills

It's not all about technical skills. These are the qualities I think I could bring to a team.

  • Reliable
  • Responsible
  • Loyal
  • Structured
  • Driven
  • Versatile


If you have a project you would like to discuss, or simply want to say hello, get in touch with me.

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