Skip to content
BackNov 7
Hossein K.
Upwork badge

Hossein K.

Embedded Systems & IoT Developer

I am an Electrical Engineer and Embedded Systems Developer with hands-on experience in designing and coding for embedded devices, building IoT solutions, and working closely with both hardware and software. My passion lies in creating fast, secure, and efficient systems that connect devices seamlessly. My core expertise includes: Embedded Systems Development – coding for microcontrollers (ESP32, Nordic nRF) and optimizing low-power performance. Hardware Design - Designing intermediate-level boards, specialised in wearables and IoT devices, having experiences with Altium, Kicad and CircuitStudio. IoT Solutions – building connected devices with Wi-Fi, BLE, MQTT, and HTTP protocols. Embedded Linux – working with Raspberry Pi and developing custom operating systems using Buildroot. Hardware & Software Integration – bridging the gap between electronics and firmware for reliable products. System Architecture – designing scalable and secure solutions for industrial and consumer IoT applications. I am detail-oriented, enthusiastic about problem-solving, and thrive in projects that push the boundaries of innovation. Whether you need firmware development, IoT integration, or embedded Linux customization, I can deliver solutions that are robust, efficient, and tailored to your needs.

🇬🇷Ioannina, Greece$20/hr100% JSS5.00 (2)Since Sep 2025

Earnings and projects

MRR
$30

Last 6 months ÷ 6

World#159,812 / 412k
🇬🇷Country#410 / 1,051
Revenue, last 30 days
$0

Last 6 months: $178

Total earnings
$1.8k

Billed in all: $1.9k

World#344,085 / 412k
🇬🇷Country#895 / 1,051
Per project
$446

$89 in the last 6 months

World#193,530 / 412k
🇬🇷Country#509 / 1,051
Projects, last 6 months
2
50% fixed50% hourly
World#88,918 / 412k
🇬🇷Country#219 / 1,051
Projects in all
4

Across 5 contracts

40% fixed60% hourly
World#283,741 / 412k
🇬🇷Country#755 / 1,051

Earnings, last 30 days

$1.9kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,840$1,860$1,880$1,900Oct 8Oct 23Nov 7

Skill rankings: Top 27% in C

Ranked by MRR among everyone on Upwork with the skill.

  1. #35Zephyr76 freelancers · 🇬🇷 #1Top 46%
  2. #101nRF52190 freelancers · 🇬🇷 #1Top 53%
  3. #123Embedded Linux360 freelancers · 🇬🇷 #2Top 34%
  4. #132Bluetooth LE293 freelancers · 🇬🇷 #1Top 45%
  5. #240Raspberry Pi623 freelancers · 🇬🇷 #2Top 39%
  6. #244KiCad393 freelancers · 🇬🇷 #2Top 62%
  7. #286STM32545 freelancers · 🇬🇷 #1Top 52%
  8. #288Altium Designer526 freelancers · 🇬🇷 #3Top 55%