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Sefer M.

Sefer M.

Embedded Systems | Firmware Development | Product Design | Consulting

✅ TOP RATED Embedded Systems Developer ✅ Specialized in developing firmware for BLE (Bluetooth Low Energy) devices, particularly those based on Nordic nRF5x SoC. My skills extend across various platforms including Nordic nRF51, nRF52, nRF53, nRF54, nRF9160, STM32Fxxx, STM32Lxxx, STM32Hxxx, STM8 series, Espressif ESP32, ESP8266, and many others. 🚀 Product Design Consulting 🚀 Bringing your ideas to life through practical and innovative solutions. I specialize in guiding projects from concept to market, providing expertise in technical design, selecting hardware components, firmware architecture, prototyping, production optimization and project management. 🛠️ Comprehensive Peripheral Knowledge 🛠️ I have hands-on experience with a wide range of peripherals such as sensors (IMU, infrared, capacitive, proximity, temperature, humidity, color, light, etc.), touchscreen displays, cameras, smartcards, EEPROM and RAM memory ICs, SD cards, 3G/4G modems, GPS receivers, RF transceivers handling wireless protocols including WiFi, UWB, LoRa, Zigbee, etc. 💎 Bluetooth Low Energy Wizard 💎 Deep knowledge of the Nordic nRF5x SoC, along with BLE protocol in general, allows me to efficiently design and develop fully functioning firmware ensuring highest performance with minimized power consumption. Whether it’s a simple gadget or more complex IoT system, when it comes to BLE, I’m THE guy. Furthermore, I wrote my master’s thesis on BLE mesh protocol, also utilizing nRF52. 📩 Let’s Bring Your Ideas to Life 📩 Reach out to me with details about your project, and let’s collaborate on transforming your vision into reality. I’m enthusiastic about embracing new challenges and am committed to exceeding your expectations.

🇧🇦Sarajevo, Bosnia and Herzegovina$80/hr100% JSS5.00 (83)Since Feb 2017

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#6,820 / 412k
🇧🇦Country#15 / 903
Revenue, last 30 days
$0
Total earnings
$321k

Billed in all: $325k

World#6,820 / 412k
🇧🇦Country#15 / 903
Per project
$3.6k
Projects, last 6 months
0
World#209,850 / 412k
🇧🇦Country#440 / 903
Projects in all
90

Across 98 contracts

45% fixed55% hourly
World#31,807 / 412k
🇧🇦Country#87 / 903

Earnings, last 30 days

$325kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$320k$325k$330k$335kOct 8Oct 23Nov 7

Skills