available_for_work: true

Hi, I'm Talmiz.

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I design and ship firmware for ARM-based Qualcomm platforms — from board bring-up and BSP customization to AOSP, OTA delivery, and the PCBs underneath it all.

Embedded C
C++
PCB Design
RTOS
AOSP/Android
Embedded Linux
Firmware Development
Verilog
Talmiz ur Rehman
QCM6125
firmware.flash()
3+ yrs
hardware_diagnostic.ttyUSB0
CH1: SPI/PWM WAVEFORM500mV/div 10us
SERIAL LOG (115200 BAUD)
>[0.012s] QCM6125 Kernel & BSP board bring-up: OK
>[0.024s] LVDS LT9211D bridge & MIPI DSI display initialized
>[0.038s] Touch controller on I2C & MIPI Camera brought up
>[0.052s] NFC PN7220 driver integrated & peripheral test PASSED

Firmware & BSP

Linux kernel/BSP and AOSP customization, device-driver integration, and board bring-up across display, touch, camera and audio subsystems

Hardware & PCB Design

High-speed flex and multilayer PCB design with EMI control and signal integrity, from schematic capture to component-level review

Mass Production & QC

SMT oversight, GMS key flashing and provisioning, FCC compliance testing, and full production-line validation through to shipment

About me

Embedded firmware and hardware engineer with 3 years across the full product lifecycle — firmware and BSP bring-up, PCB design, hardware integration, and mass production. Hands-on with ARM-based Qualcomm QCM6125 / Quectel SOM platforms, Android (AOSP), OTA, and high-speed multilayer PCB design in Altium.

Proven at taking products from prototype to production, working shoulder-to-shoulder with cross-functional hardware teams, mentoring junior engineers, and building structured technical documentation.

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Completed Projects

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Client satisfaction

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Years of experience

// specializations

ARM Cortex (QCM6125)
AOSP & BSP Customization
NFC PN7220 & LVDS LT9211D
Touch (I2C) & MIPI Camera
High-Speed Flex & Antenna Design
China Mass Prod & GMS Key Flashing

Technical Skills

C/C++ Programming
ARM Cortex MCUs
FreeRTOS
Device Drivers
Bootloader Dev
Debugging & Probing
Embedded Linux
IoT Development
AOSP / Android
BSP & Kernel
OTA Updates

Projects

Hardware, embedded systems, robotics, and coursework spanning firmware, PCB design, and digital systems.

AI Device (Confidential)
In Progress

AI Device (Confidential)

Design and development of an interactive AI device

Quectel SC668S
Display & Touch
Camera Integration
+2
Embedded Systems11/2023 – Present
Semi‑Autonomous Tracking Sentry Robot
Completed

Semi‑Autonomous Tracking Sentry Robot

FYP: Semi‑autonomous object‑tracking sentry robot

Raspberry Pi 4
Python
Computer Vision
+2
Robotics05/2022 – 06/2023
VERILOG · XILINX FPGA · VGA OUT
Completed

Image Convolution on FPGA

Accelerated image convolution pipeline using FPGA

Verilog
FPGA
Xilinx
+2
Digital Design09/2022 – 02/2023
Line‑Following, Sumo & Obstacle‑Avoider Robot
Completed

Line‑Following, Sumo & Obstacle‑Avoider Robot

Multi‑mode Arduino robot: line‑following, sumo, and obstacle avoidance

Arduino
PCB Design
C/C++
+2
Robotics06/2022 – 09/2022
Vessel Detection
Completed

Vessel Detection

Retinal blood vessel segmentation enhancement using the Frangi filter

MATLAB
Digital Image Processing
Frangi Filter
+1
Digital Image Processing03/2023 – 06/2023
PARAMETRIZED VERILOG · NEXYS2
Completed

4‑Digit Decimal Counter on Nexys2 FPGA

Parametrized Verilog counter driving a 4‑digit 7‑segment display

Verilog
FPGA (Nexys2)
7‑Segment Display
+1
Digital Design11/2022
NODEMCU · SOIL / TEMP / HUMIDITY
Completed

IoT Based Plant Monitoring System

NodeMCU system tracking soil moisture, temperature & humidity with remote pump control

NodeMCU
Soil Moisture Sensor
Temp/Humidity Sensor
+2
IoT09/2022
GATEWAY (NAT)VLSM · RIPv2 / OSPF · VLANs
Completed

Dynamic Network Architecture for a Company

VLSM‑based enterprise network design with dynamic routing and secure NAT gateway

VLSM
RIPv2
OSPF
+2
Networking02/2022 – 06/2022
220V AC12V9V5VVARAC‑DC CONVERSION · REGULATION
Completed

Power Supply

Multi‑rail AC‑DC power supply with variable output regulation

Power Electronics
AC‑DC Conversion
Voltage Regulation
Power Electronics02/2022 – 03/2022
ARDUINO · OLED · VIBRATION SENSOR
Completed

Dice Roll

Arduino digital dice with OLED display and shake‑to‑roll detection

Arduino
OLED Display
Vibration Sensor
+1
Embedded Systems02/2022
LINE FOLLOW · AVOID · BLUETOOTH
Completed

MultiFunctional Robot

Three‑mode Arduino robot: line following, obstacle avoidance & Bluetooth app control

Arduino
Bluetooth
Line Following
+1
Robotics12/2021 – 01/2022
$C++ · OOP · CUSTOMER RECORDS
Completed

Digital Receipt / Billing System

C++ billing system that stores customer data and auto‑generates receipts

C++
OOP
Data Storage
Software10/2020 – 02/2021

Experience

Senior Hardware Design Engineer (Firmware)

AIO APP Inc

11/2023 – Present
Islamabad, Pakistan
Full‑time

Spearheading firmware, BSP and AOSP development on the ARM‑based Qualcomm QCM6125 / Quectel SC668S platform. Driving complete system bring‑up — display, touch, camera, audio and charging — while mentoring junior engineers and owning technical documentation.

// key_achievements

  • Spearheaded firmware, BSP & AOSP customization on ARM-based Qualcomm QCM6125 platform with NFC PN7220 driver, LVDS LT9211D bridge, I2C touch & camera integration
  • Customized AOSP and implemented full & incremental OTA update delivery on QCM6125 devices; also worked on the Android layer of off-the-shelf Rockchip-based devices
  • Designed high-speed flex & multilayer PCBs with EMI control, signal integrity, and antenna design (2.4/5GHz) in Altium
  • Resolved board-level issues using signal probing, oscilloscopes & logic analyzers; mentored junior engineers and maintained technical documentation
Qualcomm QCM6125
AOSP Customization
NFC PN7220 & LVDS LT9211D
I2C Touch & MIPI Camera
OTA (Full/Incremental)
High-Speed Flex & Multilayer PCB
Antenna Design (2.4/5GHz)

International Engineering Visits — China (4 Visits)

AIO APP Inc

2024 – 2025
Shenzhen, China
Contract

Across four international engineering visits to Shenzhen, China, drove full-scale mass production from PCB testing & validation to factory floor assembly line deployment, key provisioning, and final shipment.

// key_achievements

  • Led PCB testing, validation, and assembly line movement across mass production runs
  • Oversaw SMT reflow profile, footprint verification, X-ray AOI inspection, and production line readiness
  • Executed secure GMS key flashing & provisioning for production-line devices with zero room for error
  • Managed final firmware deployment, functional testing, and aging & burn-in testing before packing
PCB Testing & Validation
Assembly Line Movement
Secure GMS Key Flashing
Firmware Deployment
Aging & Burn-in Testing
Mass Production & SMT

Hardware Design Engineer

TeReSol Pvt. Ltd

08/2023 – 11/2023
Islamabad, Pakistan
Full‑time

Designed and debugged embedded firmware, automated build processes, and managed custom Nvidia Tegra GPU card cloning & flashing.

// key_achievements

  • Developed embedded firmware in C/C++ and automated tasks with Bash/Shell scripts
  • Traced and fixed critical bugs to enable functional firmware releases
  • Cloned & flashed customized Nvidia Tegra GPU boards for proof‑of‑concept
  • Collaborated closely with QA on regression testing and release sign‑off
Embedded C/C++
Bash/Shell Scripting
Nvidia Tegra
Firmware Debugging
Process Automation

Education

Bachelor of Science in Electrical (Computer) Engineering

COMSATS University Islamabad

Embedded Systems

09/2019 – 09/2023
GPA: 3.31

Certifications

Advanced Embedded Linux Development Specialization (Coursera)
Internet of Things IOT, Robotics and Hacking with NodeMCU (Udemy)
Mastering Linux: The Complete Guide to Becoming a Linux Pro (Udemy)

Awards

Microwiz Winner
Visospark '23, COMSATS
Leadership Excellence Award
IEEE SAC Leadership Dialogue 2022
Sumo Robot Winner
HI ROBO TEC, Taxila

Get In Touch

Ready to bring your hardware project to life? Let's discuss your embedded systems needs and create something amazing together.

Available For

Hardware Design Consultation
Embedded Systems Development
PCB Design & Layout
Firmware Development
Technical Mentorship
Speaking Engagements

Send a Message

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