Electrical Engineering · Sonoma State University
I design, build, and test complete engineering systems.
Electrical Engineer with hands-on experience in embedded electronics, custom PCB design, robotics, RF systems, connected devices, controls, networking, and fiber optics.
SYSTEM STATUS
READY
CORE DISCIPLINES
07
EMBEDDED SYSTEMS◆ROBOTICS◆RF ENGINEERING◆
NETWORKING◆FIBER OPTICS◆CONTROLS◆
PCB DESIGN◆EMBEDDED SYSTEMS◆ROBOTICS◆
01 / ENGINEERING APPROACH
From first architecture to final measurement.
My strongest work sits at the intersection of hardware, software, and physical systems. I enjoy translating an idea into schematics, firmware, mechanical integration, testing, and a working prototype.
02 / SELECTED WORK
Projects with real hardware, real measurements, and real lessons.
Curated from senior design, robotics, RF, IoT, networking, controls, and optical engineering coursework.
01
FLAGSHIP · EMBEDDED SYSTEMS
VOC Breath Sensor Platform
Portable multi-sensor research platform combining custom PCBs, ESP32 firmware, VOC sensing, wireless data export, CFD-informed airflow design, and a guided user interface.
- 4Custom PCBs
- 5VOC Sensors
- 50Approx. tests / charge
KiCad · ESP32 · C++ · BLE · Fusion 360 · Autodesk CFD
Open full case study ↗
02
ROBOTICS · COMPUTER VISION
Vision-Based Robotic Servoing
OAK-D object detection, stereo depth, AprilTag calibration, workspace safety filtering, inverse kinematics, and RX-150 motion control.
ROS2YOLOv5nDepthAIPython
03
RF · MICROWAVE DESIGN
433 MHz RF Design Collection
Low-noise amplifier, Wilkinson divider, stepped-impedance filter, mixer characterization, antenna measurements, and end-to-end transceiver testing.
ADSVNAS-ParametersRF Fabrication
04
CONNECTED SYSTEMS · IoT
Sensor-to-Dashboard Data Pipeline
ESP8266 and Raspberry Pi systems connected through MQTT, databases, PHP APIs, Grafana, Chart.js, and hosted web dashboards.
MQTTMySQLPHPLinux
05
OPTICAL ENGINEERING
WDM Optical System Design
System architecture, component trade studies, wavelength planning, optical power budgeting, datasheet analysis, and bill-of-materials development.
WDMInGaAsLink BudgetDatasheets
03 / ENGINEERING DISCIPLINES
A multidisciplinary toolkit, organized around what I can build.
01
Embedded & PCB
ESP32, ESP8266, PIC18, sensors, power electronics, custom PCBs, bring-up, soldering, and system integration.
02
Robotics & Vision
ROS2, RViz, MoveIt, forward and inverse kinematics, Jacobians, OAK-D perception, and visual servoing.
03
RF & Test
ADS, VNAs, spectrum analyzers, S-parameters, Smith charts, mixers, filters, amplifiers, SDR, and antennas.
04
Networking & IoT
Linux, MQTT, TCP/UDP, Wireshark, Cisco Packet Tracer, MySQL, PHP, dashboards, and device-to-cloud data paths.
05
Controls
PID control, sensor feedback, brushless motors, ESCs, MPU6050 measurements, response tuning, and closed-loop systems.
06
Fiber Optics
Optical sources, detectors, WDM architecture, couplers, filters, component selection, characterization, and power budgets.
04 / DESIGN → BUILD → MEASURE
I value the gap between simulation and real hardware.
My coursework repeatedly moved from equations and simulation into fabrication, instrument measurements, troubleshooting, and redesign. That process is where I learned the most—and where I do my best engineering work.
OscilloscopeVNASpectrum Analyzer
Signal GeneratorSDRMultimeter
05 / EXPERIENCE & EDUCATION
Engineering education supported by real operational responsibility.
Warehouse Manager
Advanced Collision Repair Solutions
Operations leadership, inventory and equipment coordination, technical troubleshooting, product support, and hands-on work around industrial collision-repair systems.
B.S. Electrical Engineering
Sonoma State University · ABET Accredited
Concentrated project work across embedded systems, RF, robotics, networking, controls, fiber optics, signals, digital logic, and engineering statistics.
06 / ADDITIONAL TECHNICAL WORK
Supporting projects that broaden the engineering picture.
Image Thresholding
Python image segmentation using histogram analysis and within-class variance minimization.
Network Analysis
TCP/UDP behavior, packet inspection, embedded Linux, router simulation, DNS, and protocol troubleshooting.
Digital Logic
FPGA-oriented design, adders, counters, state machines, Verilog, and block-level digital architecture.
07 / CONTACT
Let’s build something that has to work in the real world.
Open to electrical engineering, embedded systems, hardware, test, controls, robotics, RF, and multidisciplinary product-development opportunities.
Santa Rosa, California
juanali.ruizguzman9315852@gmail.com
brethalyzebg.com