Kitty Farren

Embedded systems development and high-level user interface design for medical devices

• Designed and implemented MISRA C++ compliant communications firmware on a Zynq Utrascale+ running FreeRTOS.
• Developed an immediate mode user interface in modern C++ using Dear ImGui to run on Nvidia Jetson.
• As a proof of concept, rewrote existing Python PyQt user interface to work with a new robotics system.
• Built C++ software to stream high-frame-rate video from a Blackmagic capture card in an Nvidia Jetson.
• Introduced best practices for version control.
• Created a build process for a modified Linux image based on Jetson Linux.
• Deployed containerised software on an Nvidia Jetson using Docker and Docker Compose.
• Produced documentation in compliance with IEC 62304 (software development process for medical devices) and IEC 60601 (basic electrical safety and essential performance requirements for medical devices).
• Implemented unit testing with Unity for embedded code and GTest for software running on the NVIDIA Jetson.

Developed a new thermal model generation process.

• Wrote a C# .NET program for processing large amounts of IGBT thermal data into a VFD thermal model including ML algorithm, WPF UI and SQL server database.
• Constructed a panel for automated IGBT thermal data collection including a custom PCB, embedded C++ solution and 3D models.
• Supported a junior engineer in using the developed program and test procedure

This role included rotations in the Power Electronics, ECAD and Tech Support departments to broaden my engineering skill set

• Power electronics: Developed a suite of .NET programs to control a test panel and process the data collected; wrote a more efficient C# algorithm for processing thermal data that reduced run time by 8 hours; Refactored and further developed existing VBA tools for power electronic simulation and data processing; researched novel current sensing technology; Wrote documentation to comply with IEC 61800 (standard for Adjustable Speed Electrical Drive Systems)
• ECAD: Completed a lay out of a family of boards (FOB); demonstrated and presented use of distributed version control using Git on DevOps for PCB designs; set up an internal KiCAD workflow; and aided the India team in creating layouts and schematics.
• Tech Support: Produced a Python web-scraping and data processing tool with Qt framework and Selenium; wrote a specification for a set of Android setup wizards using Figma; answered customer tickets.

Summer placements in the Electronics (2019), Tech Support (2020) and Embedded Elevator (2021) teams as part of the E3 Academy scholarship scheme.

• Simulated control circuits in SIMetrix and carried out EMC testing.
• Specified and produced a suite of automated tests for elevator drives written in IEC 61131-3 Structured Text on a PLC.