# Murad Jabir — Embedded Systems, Hardware & Cloud Engineering

> Murad Jabir is a freelance Embedded Systems, PCB Hardware, and Cloud Engineering Consultant with over 10 years of experience. He specializes in Bluetooth Low Energy (BLE/nRF52), ARM Cortex-M microcontrollers, FreeRTOS, Zephyr, precision multi-layer PCB design (Altium/KiCad), MEMS sensor fusion, and native developer tools.

## Core Specializations

- **Embedded Firmware & RTOS**: Bare-metal C/C++, FreeRTOS, Zephyr RTOS, Nordic nRF52/nRF53, STM32 (ARM Cortex-M0+/M3/M4/M7), ESP32/ESP8266, low-power sleep state engineering, dual-bank OTA updates.
- **Wireless & IoT Protocols**: Bluetooth Low Energy (BLE 5.x, BLE Mesh, Nordic NUS), Wi-Fi (TCP/IP, MQTT, WebSockets), Sub-GHz/LoRa, CAN bus (ISO 11898 / UDS / ISO 15765-4), K-Line (ISO 9141 / KWP1281), RS-485, I2C, SPI, UART.
- **Hardware & PCB Design**: High-density interconnect (HDI) multi-layer PCB layout (Altium Designer & KiCad), RF trace antennas & 2.4 GHz impedance matching, power electronics & DC/DC switch-mode power supplies, MEMS sensor fusion (9-axis IMUs, barometers, optical sensors), ESD protection, automotive transients, DFM/DFA manufacturing preparation.
- **Native Software & Telemetry**: Native macOS desktop applications in Swift 6 & SwiftUI, AppKit status item utilities, CoreBluetooth telemetry workstations, reverse engineering vehicle diagnostic buses, and machine vision (OpenCV, 3D point cloud reconstruction).

## Portfolio & Engineering Archives

- [Homepage](https://muradjabir.com/): Overview of services, engineering competencies, and client feedback.
- [Selected Work & Engineering Portfolio](https://muradjabir.com/portfolio): 20+ commercial products, industrial IoT platforms, PCB designs, firmware architectures, and machine vision systems.
- [SOLIDWORKS GPU Enabler](https://muradjabir.com/solidworks-gpu-enabler): Open-source tool to unlock OpenGL hardware acceleration, enhanced graphics performance, and RealView shaders in SOLIDWORKS on consumer NVIDIA GeForce, AMD Radeon, and Intel Arc GPUs.
- [Home Assistant Integrations Hub](https://muradjabir.com/home-assistant): Custom Home Assistant & HACS integrations for solar inverters (NEXT, POWMR) and automated Sri Lankan utility bill telemetry (CEB, LECO, NWSDB, SLT-Mobitel).
- [FS9721-BLE Wireless Multimeter Workstation](https://muradjabir.com/fs9721-lp3-ble): Deep dive into ultra-low-power nRF52 BLE telemetry retrofit for Fortune FS9721-LP3 multimeters and native Swift 6 macOS workstation.
- [Gemini & Antigravity Usage Menu Bar](https://muradjabir.com/gemini-usage-menubar): Native macOS menu bar HUD tracking rolling 5-hour quota and weekly limits for Google Antigravity & Gemini.
- [Audi A4 B5 (8D2) Auto HVAC Diagnostic Tool](https://muradjabir.com/audi_8d2_diag): Web-based diagnostic, telemetry, and reverse-engineering tool over vintage KWP1281 protocol.
- [Solar of Things Home Assistant Integration](https://muradjabir.com/solar-of-things-ha): Home Assistant integration supporting NEXT and POWMR solar inverters with expanded electrical telemetry.
- [Safari Light Theme for YouTube Music](https://muradjabir.com/safari-light-youtube): Manifest V3 Safari extension transforming YouTube Music's interface.
- [Payment Gateway Integration Services](https://muradjabir.com/payments): E-commerce payment integrations specializing in PayPal and PayHere.
- [Sri Lankan Business Payment Gateway Guide](https://muradjabir.com/blog): Comprehensive guide on setting up online payment systems in Sri Lanka.
- [Contact & Project Inquiries](https://muradjabir.com/contact): Direct project inquiries, calendar booking, WhatsApp, and email contact channels.

## Detailed Knowledge Base

For full specifications across all 26 commercial products, firmware stacks, PCB schematics, and technical case studies:
- [Full LLM Knowledge Base](https://muradjabir.com/llms-full.txt)

## Professional Profiles & Contact

- **Website**: [https://muradjabir.com](https://muradjabir.com)
- **GitHub**: [https://github.com/muradjabir](https://github.com/muradjabir)
- **LinkedIn**: [https://www.linkedin.com/in/muradjabir/](https://www.linkedin.com/in/muradjabir/)
- **Upwork**: [https://www.upwork.com/freelancers/~01a048a2db041d157a](https://www.upwork.com/freelancers/~01a048a2db041d157a)
- **Fiverr**: [https://www.fiverr.com/sellers/muradness](https://www.fiverr.com/sellers/muradness)
- **WhatsApp**: [+94 77 334 2069](https://wa.me/94773342069)
- **Email**: contact@muradjabir.com