Hello 👋, my name is
Usman Mehmood
I'm an embedded software engineer by profession, working in the Functional Safety domain. I love building embedded systems, IoT devices and other software solutions.
About Me
My name is Usman Mehmood and I'm an embedded software engineer at Safety System Products GmbH & Co. KG.
Considering myself a "full-stack" engineer, I take pride in my diverse skill set. From designing complex circuits and multi-layer PCBs to making production ready desktop and server application, and everything in between, I like being able to do it all!
- IEC 61508 (SIL-3) and MISRA compliant firmware development in Baremetal C, Zephyr and FreeRTOS.
- Proficient with embedded interfaces: SPI, I2C, UART, CAN/J1939, Bluetooth, Bluetooth Mesh, RS485, and MQTT.
- Development of .NET (C#) desktop, server, and production tooling; experience with Beckhoff PLC and Structured Text.
- CI/CD pipelines, CMake-based builds, and automated testing for firmware and manufacturing workflows.
- Schematic and PCB design using KiCad; prototype bring-up, debugging, and SMT rework.
- B.E. Mechatronics with thesis on autonomous 3D mapping and SLAM.
My Tech Stack...
- C, CMake
- IEC 61508
- MISRA
- Zephyr
- FreeRTOS
- Beckhoff
- TwinCAT
- .NET, C#
- JS, Dart
Experience
Embedded Software Engineer @Safety System Products GmbH & Co. KG
Jan 2023 - Present
- Developed and certified a SIL-3 compliant industrial gateway, connecting wireless PLC systems to PROFINET and FSoE.
- Achieved 100% statement and branch coverage for all in-scope safety firmware using HIL tests and fault insertion, excluding certified third-party components and toolchain libraries.
- Built and maintained CI pipelines for firmware build, static analysis, and automated test execution, improving release reproducibility and reducing regression risk.
- Developed production and service tooling for mass programming, configuration, update, and repair workflows to support manufacturing and field servicing.
- Delivered an end-of-line assembly line test system using Beckhoff PLCs, integrated with the company ERP system for automated test traceability and manufacturing feedback.
#STM32
#C
#MISRA
#IEC-61508
#Functional Safety
#CI/CD
#.NET
Embedded Software Engineer @MRS Technologies, a division of MRS Electronic GmbH
July 2021 - Dec 2022
- Engineered low-power BLE mesh nodes and increased battery life from ~9 months to 3+ years through firmware optimization and hardware/algorithm tradeoffs, without degrading user experience.
- Architected and implemented an “IoT Core” framework in C to enable code reuse across a 10+ device home automation and energy management ecosystem, accelerating delivery and reducing platform risk during chip shortages.
- Built .NET middleware SDKs for industrial communication (CAN bus, Modbus RTU, Modbus TCP).
- Reverse-engineered telemetry protocols from solar inverters and industrial devices to integrate data into monitoring and energy-management systems.
- Led field application engineering for automotive-grade PLC deployments for customers in Dubai (UAE), supporting bring-up, integration debugging, and customer-facing technical execution.
- Developed tooling for SAE J1939 symbol composition/export across multiple formats for our PLC programming desktop app.
#ESP32
#nRF52
#FreeRTOS
#Zephyr
#HomeAutomation
#BLE
#LowPower
System Design Engineer @RISETech
Oct 2020 - June 2021
- Owned end-to-end embedded product development across firmware delivery, electronics refinement, and mechanical/system integration, driving prototypes toward product-ready implementation.
- Developed EPIC, a wearable generalized tonic-clonic seizure monitoring prototype, under tight space, signal-quality, and power constraints.
- Improved legacy circuits and PCB layouts by adding safety/performance enhancements and optimizing designs for manufacturability and reliability.
#ESP32
#nRF52
#LowPower
#Wearables
#BLE
Embedded Systems Intern @Air University Islamabad
June 2017 - Oct 2017
- Designed and built an intelligent energy monitoring system for homes and small buildings, delivering a functioning POC.
- Created schematics and PCB using KiCad, and handled enclosure assembly and wiring using SolidWorks mechanical integration.
#ESP32
#KiCad
#PCBs
Featured Projects
Contact
Get in Touch
To talk about any tech ideas, consultations, or feedback on my articles.
email: usmanmehmood55@gmail.com