Skip to content
BackNov 7
Sergey S.

Sergey S.

Commercial Electronics (Firmware, Hardware, PCB) Development & Product

Hello, everyone! My name is Sergey, and I have worked in the production of commercial electronics for many years. What I do best: 🛠 Embedded Systems Expertise: ✅ Low-level programming (C/C++), Python ✅ Skilled in real-time systems (FREERTOS) and OTA updates ✅ Expertise in communication protocols: I2C, SPI, UART, RS485, CAN, USB, Ethernet, MODBUS ✅ Expertise in peripheral integration: sensors, displays, motor drivers, EEPROMs ✅ Wireless IoT: WiFi, BLE, LoRa, FSK, 4G modules ✅ Hardware debugging with tools like JTAG, oscilloscopes, and logic analyzers ✅ PCB Design & Layout ✅ Electrical Engineering 🛠 Power Optimization: ✅ Low Power Design: Achieved <15µA sleep current in battery-powered IoT devices 🛠 Tools & Technologies: ✅ IDEs: STM32CubeIDE, VSCode+Platformio, ESP-IDF, Arduino IDE ✅ Platforms: STM32, ESP32, Raspberry Pi ✅ Web/Mobile: Flutter, Node-Red ✅ Version Control: Git, GitHub ✅ Protocols: TCP/IP, MQTT, MODBUS 💬 Let’s discuss how I can accelerate your embedded project

🇦🇲Gyumri, Armenia$20/hr95% JSS5.00 (8)Since Jan 2021
GlobeUpwork

Earnings and projects

MRR
$176

Last 6 months ÷ 6

World#117,747 / 412k
🇦🇲Country#467 / 1,832
Revenue, last 30 days
$120

Last 6 months: $1.1k

World#89,625 / 412k
🇦🇲Country#347 / 1,832
Total earnings
$10k

Billed in all: $10k

World#196,694 / 412k
🇦🇲Country#1,074 / 1,832
Per project
$624

$529 in the last 6 months

World#162,711 / 412k
🇦🇲Country#944 / 1,832
Projects, last 6 months
2
100% fixed0% hourly
World#88,918 / 412k
🇦🇲Country#353 / 1,832
Projects in all
16

Across 18 contracts

67% fixed33% hourly
World#155,087 / 412k
🇦🇲Country#800 / 1,832

Earnings, last 30 days

$10k+$120 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$9.8k$9.9k$10.0k$10.1kOct 8Oct 23Nov 7

Skill rankings: Top 17% in Ionic Framework

Ranked by MRR among everyone on Upwork with the skill.

  1. #7Serial Port Interfacing13 freelancers · 🇦🇲 #1Top 54%
  2. #69Arduino Firmware204 freelancers · 🇦🇲 #1Top 34%
  3. #71FreeRTOS200 freelancers · 🇦🇲 #1Top 36%
  4. #76Digital Electronics243 freelancers · 🇦🇲 #1Top 31%
  5. #76Analog Electronics193 freelancers · 🇦🇲 #1Top 39%
  6. #168Microcontroller Programming535 freelancers · 🇦🇲 #1Top 31%
  7. #180Raspberry Pi623 freelancers · 🇦🇲 #2Top 29%
  8. #196Ionic Framework1,184 freelancers · 🇦🇲 #1Top 17%