Nathaniel Bezanson

• Specialized in debug interfaces (UART, JTAG, etc)
• Chip-off memory dumping, key recovery
• Teach GPS spoofing techniques to an internal group (2025)

• Design and construct Modbus/RS485 testbench and signal simulator for power-generation ECUs
• Train engineers on protocol analysis by oscilloscope, logic analyzer, protocol analyzer

• Shielded test chamber design, build, performance verification
• Cellular network simulator setup (Rohde&Schwarz, PlutoSDR)
• NRSC-5 (HD Radio) simulator setup for protocol fuzzing

• Design test-bench harnesses to integrate vehicle ECUs for subsystem testing
• Reduce full-vehicle schematic to the most efficient harness giving required functionality
• Crimp quality expert, ultrasonic weld splice quality lead
• Design custom PCBs for power switching, signal access
• Design and 3D-print connectors not available in the market

• Design and build prototype test vehicles
• Set up CAN translation between disparate vendor and vehicle systems
• RADAR, LIDAR, GNSS, IMU physical and electrical integration, interference resolution, protocol debugging
• Design custom PCBs for CAN and single-pair Ethernet tap, test, interception
• Power systems: inverters, aux batteries, chargers, sequencing

• Execute and refine test plans
• Take OTA and HCI traces, analyze for spec compliance, coordinate issue resolution with vendors

• Update software on a growing fleet of test ECUs
• First and second stage bootloader support and troubleshooting
• Application software configuration
• CAN diagnostics

As a BTS tech in the field:

• Carrier adds (site expansion) and equipment replacement
• Responsible for RF configuration and performance
• T-carrier, fiber, coax, GPS troubleshooting

As a BSM tech in the MTSO:

• Responsible for a team of BTS techs in the field
• Data-fill and provisioning for field equipment being installed/replaced

As a MTSO equipment installer:

• DMS-MTX capacity expansion
• Twisted-pair, fiber, power

• POTS, DSL, and Pairgain system install and test
• Fiber ring and DACS commissioning (test and turn-up, connect to OM&P)