Senior Embedded Software Engineer

Job Description

Overview

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We are seeking a Senior Embedded Software Engineer to support the development of next-generation secure NFC/RFID credential reader products. This individual will be responsible for designing, developing, and delivering production-quality embedded firmware within an established software framework. The ideal candidate has strong hands-on experience with modern C++, embedded microcontrollers, RTOS environments, and low-level driver development.

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This is a highly technical firmware role focused on embedded systems rather than application software.

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Key Responsibilities

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• Design, develop, and maintain embedded firmware using C++17 or newer.

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• Develop low-level drivers and hardware interfaces including:

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• USB

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• UART

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• SPI

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• I2C

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• GPIO

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• DMA

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• Timers

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• Implement and enhance embedded software components, modules, threads, and state machines.

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• Work within an RTOS environment (Zephyr preferred) to integrate drivers, middleware, and application functionality.

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• Extend and support USB functionality, including CCID-related protocols.

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• Optimize firmware performance, memory utilization, timing, and power consumption.

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• Implement robust fault handling, recovery mechanisms, and secure coding practices.

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• Collaborate with cross-functional engineering teams to integrate firmware into the broader product architecture.

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• Deliver production-ready firmware that meets performance, reliability, and security requirements.

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Required Qualifications

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• Bachelor's degree in Engineering, Computer Engineering, Computer Science, or related technical field.

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• 5+ years of embedded firmware development experience.

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• Strong expertise in modern C++ (C++17 or later).

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• Experience developing firmware on ARM Cortex-M microcontrollers, preferably Cortex-M4F.

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• Hands-on experience with STM32 microcontrollers, ideally the STM32G4 family.

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• Solid RTOS experience, with Zephyr RTOS strongly preferred.

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• Strong background in low-level embedded development and device driver implementation.

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• Experience working with USB stacks and USB communication protocols.

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• Familiarity with Embedded Template Library (ETL) and state-machine-based architectures.

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• Experience debugging and optimizing real-time embedded systems.

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• Understanding of secure firmware development and embedded security concepts.

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Preferred/Desired Background

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• Experience with NFC, RFID, smart card, authentication, or credential reader products.

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• Experience in security-sensitive industries or products.

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• Familiarity with CCID (Chip Card Interface Device) protocols.

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• Experience working in senior-level embedded engineering roles where ownership of major subsystems is expected.

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• Ability to work independently while collaborating effectively with larger engineering teams.

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Technical Environment

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• Modern C++ (C++17+)

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• Zephyr RTOS

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• ARM Cortex-M4F

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• STM32G4 Microcontrollers

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• USB / CCID

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• ETL (Embedded Template Library)

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• Windows development environment with Linux-based build and test systems

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