USB Experts in Germany

Seqnaut and Sycosm (WIP) – Embedded Audio DSP & Synthesis Platform

• Embedded audio DSP framework — synthesizers, effects, drum machines; modular audio graph
• Sequencing: PianoRoll, StepGrid, MasterClock; 8-voice polyphonic synth; CLI + OSC
• Transient Detector — dual-envelope adaptive threshold, guitar attack detection
• Hardware: Teensy 4.1, custom AFE design tapping BOSS GX-100; MIDI FX integration

Label: C++23, C, Python, CMake, FreeRTOS, Teensy 4.1 (ARM Cortex-M7), Teensy Audio (Stoffregen), DaisySP, I2S/SAI, OSC, MIDI

• Interim Teamlead to setup a project with STM32 and NORA Bluetooth module.
• Customer is planning new hardware to replace existing hardware with Bluetooth communication instead cable connection.
• Project was already started but the requirements were not defined.
• System based on STM32 and Nora B106 CPU.
• Analyzing the existing available code base.
• Checking for possible solutions to get the project working.
• Defining the requirements.
• Applying some rules to improve the team communication.
• Working with the NRF tools to get the custom board based on NORA B106 (NRF5340) working.
• Implementation of a simple device communication by Bluetooth.
• Preparation of documentation.
• Leading communication meetings.
• Conducted discussions with customer.
• Tools used: JIRA, OneNote, Git, Confluence, Nordic NRF, Nora B106.

PCB design with Altium, MCU Programming, Prototyping

• Creating structured item definitions as the basis for conducting FMEAs

• Restructuring/optimizing existing FMEAs according to the VDA/AIAG handbook in PeakAvenue/Plato. Focus on the quality of function and failure-mode definitions

• Adding functions and failure modes

• Revising the risk analysis. Adding and rating prevention and detection measures

• Developing a framework for improved tracking of measures

• Team training

• Improving FMEA, with a focus on early failure prevention / Early Failure Mode Avoidance

• Successfully conducting customer reviews

• Develop hardware drivers and middleware using C++11, Java and Python
• Design of various RF features such as deembedding based on stakeholder requests
• Work with multiple teams to design drivers for multiple RF products
• Perform HW control to deliver RF signals and measure modulated response
• Develop RF drivers for generation of low noise signals to test WiFi7 products
• Use digital modulation techniques such as QAM for low level driver development
• Develop low level USB drivers for device enumeration
• Develop drivers for HW relay control of control boards for device testing
• Perform JTAG operations on devices under test
• Use network-based protocols (SFTP, UFTP, FTP, SSH) for control board communication
• Manage HW devices such as BADC and EEPROM for control board maintenance
• Utilize C++11/14/17 features, template metaprogramming and STL
• Employ multithreading for testing and control of multiple HW devices
• Develop tools for deployment of customer OS on control boards
• Perform component and integration tests using CxxTest
• Follow Scaled Agile Framework for software development
• Create detailed design documents using PlantUML

• Complete platform upgrade from Expo 53 to Expo 54, considering project-critical breaking changes
• Version bump of react-native 0.79.5 to 0.81.5 including consolidation, updating, and reinstalling all project-related dependencies (JavaScript, native modules, build tools, TypeScript tooling)
• Identifying and fixing incompatible libraries as well as adjusting iOS and Android configurations (Gradle, Pods, build scripts)
• Enabling and integrating the React Native New Architecture (TurboModules & Fabric) including adjusting native interfaces, build configurations, and feature flags
• Cleaning up technical debt and harmonizing platform-specific implementations to ensure long-term maintainability
• Stabilizing the project through detailed debugging, regression analysis, and adjustments to the tooling chain (Metro, Babel, TypeScript)
• Conducting comprehensive test cycles (unit, E2E, device tests) and optimizing CI/CD pipelines for Bitrise and GitLab
• Ensuring stable releases for Android & iOS in conjunction with analytics, engagement, and monitoring systems

• Leading technical stream in IT projects

• Add/create test specifications
• Conduct regression tests
• Conduct release tests
• Analyze Jira tickets
• Identify software defects and fix them with C#

• closing the safety case
• creation of meaningful traceability matrices and targeted test expansion
• transferring requirements into other database systems
• structuring the requirements, assessing their completeness, and setting up new test cases based on use-case–based test strategies and the results of internal traceability matrices
• partial automation of tasks within a requirement assessment tool
• tools and languages: MS Teams, reqIF, Enterprise Architect, Codebeamer, proprietary tools for creating and evaluating traceability matrices (approx. 1000 x 1000)

• Test concept creation
• Creation of test processes
• Coordination of TC development: stress tests, functional tests, performance tests, high data rate tests, integration tests, etc.
• HW testing: FPGA, RF
• Test automation and regression tests
• Ensuring 24/7 operation of the test system
• Analysis & reporting
• Regular coordination of the test team, meetings with other stakeholders
• Communication and coordination with stakeholders and the project manager

• Consulting, service and support for various companies.
• Consulting and planning of projects and process optimisation.
• Rollout planning, IT service and support, stakeholder management

• Modification and redesign of the software for a series component
• Review of the software concept and extension of functionality
• Modification of software functions for DC motor control
• Hardware: ARM STM32G474, CAN bus, Lauterbach T32
• Software: Microsoft Visual Studio Code

• JAVA development for thermal printer test program

• Further development of the free thermal printer test program in Java 1.8 AWT and Swing

• Creating new plugins for sensor feedback using a real-time bar chart

• Using multiple printer languages for USB, UDP, TCP and RS232 communication

• Improving usability and responsiveness with threads and string buffering

• Querying and displaying network configuration

• Converting and processing hex data from printer responses

• Advanced study of servomotors and USB bus

• Enumerating available USB ports from the Windows Registry, retrieving additional information via PowerShell, parsing and listing all in a Java list box

• Fixing reported database errors

• Detecting if the printer driver is installed and recognizing physically connected devices

• Migration to Windows 11

• Handling customer tickets as part of support in C++ and Qt6

• Writing CMake scripts

• Compiling STM32 printer firmware with CMake and managing the process in FileMaker Pro

• Technologies: Eclipse, Java 1.8, AWT, Swing, RS232, USB, TCP, UDP, PowerShell, servomotor technology, Windows 10 and Windows 11, WSL 2.4, Ubuntu Linux, CMake, Qt6, FileMaker Pro