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Mieszko M.
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Mieszko M.

Zephyr RTOS and NRF expert, Principal Embedded Firmware Engineer

I'm Mieszko Mieruński, I have 13+ years of experience with Embedded Systems My main specialization is Zephyr RTOS, which I work with since 2018, when I was working at Nordic Semiconductor writing drivers for nRF91 and nRF53 chips. I have vast experience with nRF chips and tackle hardest issues with RF, connectivity and power optimization. I also have experience working with other technologies listed below: 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 & 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹𝘀 • Connectivity: LTE-M, NB-IoT, LoRaWAN, Bluetooth / BLE, Wi-Fi (including HaLow), Thread • Application Protocols: Matter, MQTT, LwM2M, CoAP • Integrated Systems: GPS/GNSS, Asset Tracking, Sensor Fusion 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 & 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 • Zephyr RTOS (Official Ecosystem Vendor & Technical Contributor) • FreeRTOS • Embedded C/C++ • Rust (for memory-safe, mission-critical systems) 𝗠𝗖𝗨 𝗙𝗮𝗺𝗶𝗹𝗶𝗲𝘀 • Nordic Semiconductor (nRF52, nRF54, nRF91 series) • Espressif (ESP32, ESP32-S3, ESP32-P4) • STMicroelectronics (STM32H7 and others) 𝗩𝗲𝗿𝘁𝗶𝗰𝗮𝗹 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀 • Industrial IoT (IIoT) & Factory Automation • Smart Agriculture • Connected Healthcare & MedTech • Smart Home & Building Automation • Emergency & Safety Devices • Asset Tracking & Logistics

🇵🇱Krakow, Poland$90/hr100% JSS5.00 (2)Since Feb 2024

Earnings and projects

MRR
$1.4k

Last 6 months ÷ 6

World#34,566 / 412k
🇵🇱Country#301 / 2,852
Revenue, last 30 days
$0

Last 6 months: $8.4k

Total earnings
$46k

Billed in all: $47k

World#81,827 / 412k
🇵🇱Country#800 / 2,852
Per project
$9.1k

$4.2k in the last 6 months

World#17,797 / 412k
🇵🇱Country#244 / 2,852
Projects, last 6 months
2
100% fixed0% hourly
World#88,918 / 412k
🇵🇱Country#610 / 2,852
Projects in all
5
60% fixed40% hourly
World#266,042 / 412k
🇵🇱Country#1,973 / 2,852

Earnings, last 30 days

$47.3kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$46.5k$47.0k$47.5k$48.0kOct 8Oct 23Nov 7

Skill rankings: Top 8% in C

Ranked by MRR among everyone on Upwork with the skill.

  1. #10Real-Time Operating System71 freelancers · 🇵🇱 #1Top 14%
  2. #13Zephyr76 freelancers · 🇵🇱 #1Top 17%
  3. #33nRF52190 freelancers · 🇵🇱 #1Top 17%
  4. #34AWS IoT Core192 freelancers · 🇵🇱 #1Top 18%
  5. #50Bluetooth LE293 freelancers · 🇵🇱 #1Top 17%
  6. #59Hardware Design355 freelancers · 🇵🇱 #2Top 17%
  7. #61Firmware350 freelancers · 🇵🇱 #2Top 17%
  8. #66Microcontroller Programming535 freelancers · 🇵🇱 #1Top 12%