Preston Yates
Austin,TX
Overview
1
1
year of professional experience
Work History
Firmware Engineer
Accelsius
Austin, TX
04.2025 - Current
- Developed and launched STM32G474 bootloader equipped with dual-image fallback and flashing functionality
- Standardized flash/memory map to prevent overlap, decreasing mis-flashes.
- Enabled larger images by bringing up QSPI external flash with boot selection considerations.
- Implemented a sensor abstraction layer for internal/external ADCs, enhancing observability through a fault/alert framework.
- Stabilized MCU↔SoC I²C streaming, with improved probing and recovery, reducing link dropouts.
- Built UART4/5 diagnostics with structured logs to expedite on-bench troubleshooting.
- Delivered firmware enhancements to controls software, reducing loop time by 20%
Software Test Engineer
Accelsius
Austin, TX
04.2024 - 04.2025
- Built the Provisioning and Test Suite (Python/Tkinter + MQTT) to program/validate control boards and interposers, enabling repeatable EOL and future regression, and cutting bring-up time by approximately X%.
- Finalized the Simulator GUI and fault-injection flows, speeding firmware validation and making defects reproducible on demand (−Y% triage time).
- Implemented EEPROM programming with FRUGEN (write/verify/retries), improving programming yield and reliability on the line.
- Manufacturing handoff: packaged the suite, trained operators, and became first POC for escalated factory issues beyond local test engineering scope.
Education
B.S - Computer Science
Colorado School of Mines
Golden, CO12.2023
Skills
- Python, C, and C
- I²C stabilization and EEPROM programming
- Test automation and debugging
- Firmware and embedded systems development
- Sensor integration and schematic-driven debugging
- Agile development methodologies
- UI development in Swift
Projects
Dual‑Image Bootloader & Memory Map (STM32G474) — Golden/app fallback, vector‑table remap, validity checks; standardized FLASH/QSPI layout and OB/RDP settings to prevent mis‑flashes.
Provisioning & Factory Test Suite (Python/Tkinter + MQTT) — One‑click program/validate/log for Control Boards & Interposers; packaged for manufacturing; enabled repeatable EOL + future regression
MCU↔SoC Telemetry Hardening (I²C over OpenBMC) — Readiness probing, timeout/back‑off, bus‑recovery; stabilized streaming across resets/hot‑plug. UART diagnostics for faster triage.
FitIt — iOS Fitness & Nutrition App (SwiftUI) — Barcode scanning → USDA FoodData Central lookup, SQLite meal logging, and macro tracking dashboards; programmatic navigation with NavigationStack and a clean, testable architecture.
Timeline
Firmware Engineer
Accelsius
04.2025 - Current
Software Test Engineer
Accelsius
04.2024 - 04.2025
B.S - Computer Science
Colorado School of Mines
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