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# Embedded Software Engineer - RFID/NFC

- **Company:** LTD Global
- **Location:** Palatine Township, IL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Component-Based Software Engineering, ARM Architecture, User Authentication, C++ (Programming Language), Communications Protocols, Computer Engineering, Extract Transform Load (ETL), Software Debugging, Linux, Device Drivers, Memory Management, Middleware, Embedded Software, Firmware, Hardware Design, Hardware Interface Design, Near Field Communication, Radio-Frequency Identification, Performance Tuning, Real-Time Operating Systems, Secure Coding, Smart Cards, System Programming, Universal Asynchronous Receiver/Transmitter, Serial Peripheral Interface, PIC Microcontroller, Real Time Systems, State Machines, Information Technology, C++14
- **Published:** October 8, 2026
- **Apply:** https://www.disabledperson.com/jobs/75894623-embedded-software-engineer-rfid-nfc

## About the Role

* Bachelor's degree in Computer Engineering, Electrical Engineering, Computer Science, or a related technical field.
 * 5+ years of experience in embedded firmware or embedded software development.
 * Strong proficiency in modern C++ (C++17 or later).
 * Hands-on experience with ARM Cortex-M microcontrollers, preferably Cortex-M4F.
 * Experience with STM32 microcontrollers, ideally the STM32G4 family.
 * Strong RTOS experience, preferably with Zephyr RTOS.
 * Proven experience in low-level programming, device drivers, and hardware interfacing.
 * Experience with USB stacks and communication protocols.
 * Familiarity with Embedded Template Library (ETL) and state-machine-based architectures.
 * Strong debugging, troubleshooting, and real-time system optimization skills.
 * Understanding of embedded security and secure firmware development practices.

Preferred Qualifications

 * Experience with NFC, RFID, smart card, authentication, or credential reader products.
 * Familiarity with CCID (Chip Card Interface Device) protocols.
 * Experience developing security-sensitive embedded products.
 * Ability to take ownership of major firmware components and work independently within a collaborative engineering team.

Technical Environment

C++17+, Zephyr RTOS, ARM Cortex-M4F, STM32G4 microcontrollers, USB/CCID, Embedded Template Library (ETL), Windows development environments, and Linux-based build and test systems.

## Description

We are seeking an experienced Senior Embedded Software Engineer to design, develop, and maintain production-quality firmware for next-generation secure NFC/RFID credential reader products. The ideal candidate will have strong expertise in modern C++ (C++17 or later), embedded microcontrollers, RTOS environments, and low-level driver development. This role focuses on embedded firmware engineering, hardware integration, performance optimization, and secure embedded systems., * Design, develop, and maintain embedded firmware using C++17 or newer.

 * Develop and integrate low-level drivers for USB, UART, SPI, I2C, GPIO, DMA, and timers.
 * Implement embedded software modules, threads, state machines, and hardware interfaces.
 * Work with RTOS environments, preferably Zephyr RTOS, to integrate drivers, middleware, and application components.
 * Develop and enhance USB communication functionality, including CCID protocols.
 * Optimize firmware performance, memory usage, real-time behavior, and power consumption.
 * Implement robust error handling, recovery mechanisms, and secure coding practices.
 * Debug, test, and validate embedded firmware to ensure reliability, performance, and security.
 * Collaborate with cross-functional engineering teams to deliver production-ready firmware.