Black-and-white portrait of Andrei Cojocaru

Andrei Cojocaru

Embedded Software Engineer PCB Design Enthusiast

Based in
Bucharest, Romania
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Experience

Since

Embedded Software Engineer

Radcom · Bucharest, Romania

My work runs on the devices behind public parking payment management and public transport ticketing — equipment in daily service in cities across the country.

Education

Completed

Master’s Degree

Complex Signal Processing in Multimedia Applications

Real-time digital signal processing for audio and video, advanced orthogonal transforms, image analysis and machine learning applied to complex signals.

Systems Engineering  ·  Faculty of Automatic Control and Computers
National University of Science and Technology POLITEHNICA Bucharest

Education

Completed

Bachelor’s Degree

Automatic Control and Applied Informatics

Control systems, signals, electronics and the software that ties them to real hardware.

Systems Engineering  ·  Faculty of Automatic Control and Computers
National University of Science and Technology POLITEHNICA Bucharest

N° 01

In development

BRAHMA

A high-fidelity streaming amplifier, designed from the silicon up.

Streamer, DAC, DSP and power amplifier in one box. An ARM compute module running embedded Linux feeds a Class-D stage through a programmable DSP — parametric EQ and active crossovers — with every input a living room asks for: optical, coaxial, HDMI ARC with CEC, USB audio, aptX Bluetooth, AirPlay and Spotify Connect.

Amplification
TAS3251 Class-D
2 × 175 W into 4 Ω
Platform
Embedded Linux
Programmable DSP
Hardware
Schematic & PCB in KiCad
Case & structure in FreeCAD

N° 02

Ongoing

Internet of Things

Devices built from scratch for everyday use.

Much of my time has gone into designing and building IoT devices from the ground up to solve everyday needs — smart-home devices and the automations that tie them together. Each one runs on whatever fits the job: a Raspberry Pi where a full Linux system earns its place, ESP8266 and ESP32 modules for Wi‑Fi nodes, and plain microcontrollers wherever a device doesn’t need to be online at all.

Purpose
Smart-home devices
Everyday automation
Connected
Raspberry Pi
ESP8266 · ESP32
Standalone
Microcontrollers where
Wi‑Fi isn’t needed

N° 03

More to come