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
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $8.4k
Billed in all: $47,295$47k
$4.2k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 8% in C
Ranked by MRR among everyone on Upwork with the skill.
- #10Real-Time Operating System71 freelancers · 🇵🇱 #1Top 14%🇵🇱#1 of 2
- #13Zephyr76 freelancers · 🇵🇱 #1Top 17%🇵🇱#1 of 1
- #33nRF52190 freelancers · 🇵🇱 #1Top 17%🇵🇱#1 of 3
- #34AWS IoT Core192 freelancers · 🇵🇱 #1Top 18%🇵🇱#1 of 4
- #50Bluetooth LE293 freelancers · 🇵🇱 #1Top 17%🇵🇱#1 of 4
- #59Hardware Design355 freelancers · 🇵🇱 #2Top 17%🇵🇱#2 of 5
- #61Firmware350 freelancers · 🇵🇱 #2Top 17%🇵🇱#2 of 9
- #66Microcontroller Programming535 freelancers · 🇵🇱 #1Top 12%🇵🇱#1 of 6