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I will develop production grade esp32 firmware using espidf, freertos and lvgl
Embedded Firmware Engineer nRF ESP32 STM32 Zephyr BLE IoT
Embedded Firmware Engineer specializing in Nordic nRF and Zephyr RTOS. 3+ years shipping production firmware on nRF52, nRF53, nRF91, ESP32, and STM32. Recently deployed a 5-device cellular IoT fleet w...
About this Gig
Production-Grade ESP32 Firmware | ESP-IDF · FreeRTOS · LVGL · BLE · Wi-Fi · MQTT
If you're building a real product not a hobbyist sketch you're in the right place.
I'm Akbar, an embedded systems engineer with 2+ years of professional experience shipping firmware for IoT devices, connected locks, industrial sensors, and touch-display systems. I work exclusively in ESP-IDF (not Arduino) so your firmware is production-ready, maintainable, and scalable from day one.
WHAT I BUILD ON ESP32 / ESP32-S3
Full LVGL touchscreen UIs menus, keyboards, real-time dashboards
BLE (GATT server/client) custom profiles, BLE HID, BLE pairing flows
Wi-Fi + MQTT AWS IoT Core, FOTA/OTA, cloud telemetry pipelines
Sensor integration I2C/SPI/UART/ADC: IMU, temperature, CO, load cell, optical
Motor & actuator control PWM, PID loops, limit switches, state machines
Secure storage AES-256 encrypted NVS, PIN systems, anti-tamper logic
Low-power design deep sleep, RTC wake, duty-cycle optimization
Custom bootloaders & secure boot eFuse config, flash encryption
REAL PROJECTS I'VE SHIPPED
ESP32-S3 thermal controller with LVGL TFT UI + custom PID loop
BLE-based smart lock with actuator control and state feedback
My Portfolio
FAQ
Do you use Arduino or ESP-IDF?
Always ESP-IDF. It gives you proper FreeRTOS multitasking, NVS storage, secure boot, and OTA — none of which are production-suitable in Arduino.
Can you work with my existing codebase?
Yes. Send it over before ordering and I'll review it and tell you exactly what needs to change.
Do you do hardware/PCB design too?
Yes — check my other gig for KiCad schematic + PCB layout services.
What if my project is bigger than the Premium package?
Message me. I handle larger projects with custom milestones.
Will the code work on ESP32-S3 / ESP32-C3 / ESP32-H2?
Yes — ESP-IDF supports the full ESP32 family. Just tell me your target chip.
