# Stephen Wilcox > Principal Software Engineer at ZAP Surgical Systems, Inc. Location: Los Gatos, California, United States Profile: https://flows.cv/stephenwilcox ## Work Experience ### Principal Software Engineer @ ZAP Surgical Systems, Inc. Jan 2022 – Present ### Sr. Software Engineer @ ZAP Surgical Systems, Inc. Jan 2020 – Present | San Carlos, California, United States ### Staff Software Engineer @ Siemens Jan 2007 – Jan 2020 | Mountain View, California, United States Developed interactive 3D graphics in C++ using OpenGL scene graphs to guide operators of medical ultrasound devices. Designed and implemented a flexible, GPU based image processing pipeline in CUDA and C++ that replaced an FPGA component used in prior products. Incorporated comprehensive automated testing using a combination of Microsoft unit test framework tests and deployment tests implemented in Matlab. Wrote Python scripts for test code generation. Optimized kernel performance using Nsight profiler. Designed and integrated image pre-processing and inference modules for AI powered clinical workflows in close collaboration with innovation group. ### Senior Software Engineer @ Siemens Medical Solutions Jan 2001 – Jan 2007 Implemented Doppler spectral and audio signal processing algorithms in C on a DSP processor for a diagnostic ultrasound machine. Implemented C++ Windows based hardware control layer software for configuring FPGA hardware to do full volume image formation and processing for a 3D diagnostic ultrasound machine. ### Software Engineer @ Acuson Jan 1994 – Jan 2001 Led a team of engineers implementing a collection of features sold as service upgrade packages to existing customers. Negotiated feature content, balancing customer feedback, marketing desires, and engineering bandwidth. Resulting update packages helped generate significant service contract revenue. Implemented user interface, business logic, interfaces to control layer software, and hardware interfaces, in C and C++. Investigated and fixed reported bugs. ### Software Quality Engineer @ Acuson Jan 1989 – Jan 1994 Led a team of five testers responsible for testing and verification of all software components of an Apple Macintosh based image management product. Tested implementation of new features and performed regression testing. Wrote test procedures for new features. Developed automated test scripts. ### Quality Engineer @ Acuson Jan 1987 – Jan 1989 ## Contact & Social - LinkedIn: https://linkedin.com/in/stephen-wilcox-600529 --- Source: https://flows.cv/stephenwilcox JSON Resume: https://flows.cv/stephenwilcox/resume.json Last updated: 2026-04-12