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Hussain A.

Hussain A.

Embedded Systems Engineer | 15+ Years

With over 15 years of hands-on experience in embedded systems engineering, I specialize in designing, developing, and delivering robust embedded solutions with a strong focus on code quality, reliability, and long-term maintainability. My background includes end-to-end embedded product development—from concept and architecture to firmware, hardware, testing, and production support. I have collaborated with Silicon Valley teams, including former Apple engineers, which has shaped my engineering discipline, documentation standards, and commitment to building scalable, high-performance systems. 🔧 Core Expertise ⚙️ Firmware Architecture & Development Skilled in architecting clean, modular, reusable, and well-documented firmware. Strong focus on MISRA-C compliance, static analysis, RTOS-based designs (FreeRTOS, Zephyr), and bare-metal development. Experienced in building robust driver layers, HAL, bootloaders, communication stacks (SPI, I²C, UART, CAN, RS485), and secure OTA update mechanisms. 📡 IoT Systems & Connectivity Design and integration of IoT architectures including MQTT, BLE, Wi-Fi, LTE, and mesh networks. Experience with cloud platforms (AWS IoT, Azure IoT, Google Cloud) and secure device provisioning. Development of low-power, battery-optimized embedded IoT devices. 🔌 Power Electronics & Control Systems Development of control algorithms for inverters, motor control (FOC, BLDC, PMSM), PFC stages, and DC-DC converters. Firmware for Battery Management Systems (BMS) including cell balancing, SOC/ SOH estimation, and safety protection layers. High-reliability firmware design for power and industrial electronics. 🔲 PCB Design & Hardware Engineering Schematic capture, PCB layout (1–6+ layers), signal integrity optimization, EMC/EMI-aware design. Experience with Altium Designer, KiCad, and Eagle. Ability to take a design from concept → prototype → production. 🧠 Microcontroller & SoC Platforms Extensive experience across multiple architectures and ecosystems, including: ARM Cortex-M Series (M3, M4, M7) ESP32 / ESP8266 Nordic NRF52 Series (BLE applications) TI C2000 / TI Stellaris Microchip PIC32 NXP Kinetis / LPC STM32 Family (all major series) 🌍 Why Work With Me? 15+ years crafting reliable embedded solutions. Proven ability to work with global engineering teams and Silicon Valley standards. Strong communicator with clear project documentation and milestone planning. Passionate about designing high-quality firmware, efficient hardware, and full stack embedded systems. Committed to delivering results that work in real-world conditions—not just in the lab. If you’re looking for an experienced embedded engineer who can take your idea, prototype, or existing product to the next level, I’d be happy to discuss your project. Let’s build something exceptional.

🇵🇰Karachi, Pakistan$25/hr100% JSS4.84 (17)Since Sep 2015

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#221,214 / 412k
🇵🇰Country#24,470 / 52.9k
Revenue, last 30 days
$0
Total earnings
$7.4k

Billed in all: $7.5k

World#221,214 / 412k
🇵🇰Country#24,470 / 52.9k
Per project
$338
Projects, last 6 months
0
World#209,850 / 412k
🇵🇰Country#32,103 / 52.9k
Projects in all
22

Across 29 contracts

52% fixed48% hourly
World#124,452 / 412k
🇵🇰Country#20,601 / 52.9k

Earnings, last 30 days

$7.5kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$7.3k$7.4k$7.5k$7.6kOct 8Oct 23Nov 7

Skills