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firefly-haven/README.md

Jay Kochhar

Electrical Engineering Student @ San Francisco State University · B.S. expected May 2029 · San Francisco Bay Area

I build and debug systems where electronics, embedded firmware, and software meet: sensor interfaces, PCB prototypes, edge-AI devices, and Linux-based hardware platforms. I enjoy taking projects from architecture and schematic design through bring-up, testing, and iteration.

Seeking Summer 2027 internships in embedded firmware, electrical/hardware engineering, hardware or silicon validation, robotics, and edge AI.

Email · Portfolio · GitHub projects

Featured engineering work

Embedded C · Infineon XENSIV BGT60TR13C · DEEPCRAFT · GPIO/UART

  • Adapted Infineon's PSoC 6 radar/embedded-ML example into a gesture-input subsystem for a larger assistive facial-recognition project.
  • Collected and labeled radar samples, trained and deployed a custom swipe gesture, and tested inference on physical hardware.
  • Implemented GPIO triggers and UART event output so gesture detections could be consumed by other devices.

My firmware and documentation · Full team project: Infineon-X · Radar case study

Raspberry Pi 4 · MPU-6050 · Python/FastAPI · Svelte/TypeScript · Embedded Linux

  • Built a local-first projector application with a fullscreen display, browser-based control UI, WebSocket updates, and systemd-based startup/recovery.
  • Brought up the IMU over I²C and verified live accelerometer/gyroscope telemetry on the Raspberry Pi and projector hardware.
  • Prototype in progress: automatic motion-triggered blanking and calibrated desk/wall/ceiling pose switching are not yet validated on hardware.

NVIDIA Jetson AGX Orin — Local AI & OCR

Jetson AGX Orin 32 GB · CUDA · Ollama · llama.cpp · Python · Linux

  • Built and tested a CUDA-enabled llama.cpp setup and benchmarked local inference, investigating long-context performance, Flash Attention, KV-cache settings, and unified-memory limits.
  • Connected local inference to an Obsidian OCR workflow with page-level transcription and visual quality checks.
  • Systems/deployment project; standalone public write-up not yet available.

Hardware Prototyping & PCB Fabrication

KiCad · Circuit simulation · PCB layout · Soldering · Test instrumentation

  • Designed and prototyped instructional electronics modules, from component selection and PCB layout through fabrication, testing, and classroom materials.
  • Revised a workshop synthesizer PCB, evaluated milling/laser trace-isolation options, and fabricated, assembled, and tested working boards using toner transfer and wet etching.
  • Built a programmable peristaltic-pump prototype using an ESP8266, stepper driver, and USB-C Power Delivery/buck-conversion hardware.

Raspberry Pi Compute & Storage Cluster

Six CM4 nodes · NVMe · Ceph/CephFS · Samba · Docker · Linux networking

  • Built a six-node Raspberry Pi CM4/NVMe cluster, configured distributed storage for single-node failure tolerance, and deployed shared storage and containerized services.
  • Worked through real-world Linux administration, storage, networking, and failure-recovery considerations.

Engineering experience

Krause Center for Innovation (KCI) — Makerspace Staff · April 2025–present

Design and prototype electronics learning modules; troubleshoot hardware and fabrication equipment; develop and co-facilitate hands-on training for K–12 educators in circuits, soldering, CAD, and digital fabrication.

Previously held customer-facing technical and team-leadership roles at Best Buy and as a Samsung Experience Consultant through 2020 Companies.

Technical toolkit

Area Tools and experience
Embedded hardware PSoC 6, STM32 (C/ARM assembly), ESP32/ESP8266, Raspberry Pi, Jetson AGX Orin; GPIO, UART, I²C, sensor and motor interfaces
Electronics & validation KiCad, schematic capture, PCB layout/fabrication, circuit simulation, soldering, DMM, oscilloscope, logic-analyzer debugging
Programming & systems C, C++, Python, Linux, Git, Docker, FastAPI, Ceph, Proxmox, networking, Ollama, llama.cpp
Digital design Combinational/sequential logic, FSMs, registers, datapaths, and Xilinx ISE simulation (coursework in progress)
CAD & fabrication Parametric CAD, FDM/SLA 3D printing, CO₂/diode/fiber laser fabrication, CNC machining and CAM

Current focus: microelectronics and digital design coursework, STM32 firmware, sensor-rich embedded devices, and practical validation of edge-AI systems.

I'm particularly interested in internships where I can contribute to board bring-up, firmware, test automation, and hardware/software integration, while continuing to learn from experienced engineers.

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