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I will do nordic nrf52 nrf53 ble firmware development and programming
Embedded Software Engineer, STM32, ESP32, IoT and Firmware Expert
Hi! I'm Muhammad Faizan, an Embedded Software Engineer with 3+ years of experience developing firmware for STM32, ESP32, and nRF platforms.
I specialize in real-time systems, secure IoT, and full-sta...
About this Gig
Looking for a Nordic Semiconductor nRF52/nRF53 BLE expert to build reliable, low-power Bluetooth Low Energy firmware for your wearable, medical, or IoT product?
With 3+ years of professional embedded experience developing BLE-enabled devices for medical monitoring, industrial sensors, and smart wearables, I deliver production-ready Nordic firmware optimized for battery life, range, and stability.
Whether you need a custom GATT profile, secure DFU/OTA updates, or ultra-low-power sensor beacons, I build clean, modular BLE firmware using the official Nordic nRF Connect SDK (NCS/Zephyr) or legacy nRF5 SDK.
--- MY NORDIC / BLE EXPERTISE ---
Chipsets: nRF52832, nRF52840, nRF52833, nRF5340, nRF54 Series
SDKs: nRF Connect SDK (Zephyr RTOS), nRF5 SDK (SoftDevice)
BLE Stack: GAP, GATT, SMP, L2CAP, Custom Services & Characteristics
BLE Roles: Peripheral, Central, Observer, Broadcaster, Multi-Role
Advanced Features: Secure DFU/OTA, BLE Mesh, Bonding, LE Secure Connections
Power Optimization: System OFF, Sleep Modes, Sub-µA Current Consumption
Peripherals: I2C/TWI, SPI, UART, SAADC, PWM, PDM, QSPI
Tools: nRF Connect for Desktop, Segger Embedded Studio, VS Code, J-Link, Power Profiler Kit II
My Portfolio
FAQ
Which Nordic SDK do you use — nRF5 SDK or nRF Connect SDK?
Both! I work with the modern nRF Connect SDK (Zephyr RTOS) for new projects (recommended by Nordic) and the legacy nRF5 SDK (SoftDevice) for existing product maintenance. I can also migrate projects from nRF5 SDK to NCS.
Can you help optimize battery life for a coin-cell powered device?
Absolutely. I use the Nordic Power Profiler Kit II (PPK2) to measure real current consumption and optimize sleep modes, advertising intervals, and connection parameters to achieve sub-µA idle current — critical for CR2032/CR2450 coin-cell designs.
Do you support mobile app integration (iOS/Android)?
I focus on firmware, but I provide fully documented GATT profiles, UUIDs, and characteristic maps so your mobile developer can integrate seamlessly. I also test with nRF Connect mobile app to verify BLE behavior before delivery.
Can you implement secure OTA/DFU firmware updates?
Yes. I implement Nordic's Secure DFU using MCUboot (NCS) or the legacy Secure Bootloader (nRF5 SDK) with signed firmware images and encrypted updates over BLE or UART.
