Embedded Engineer (Hardware & Firmware Development)

Company: ZyntelliTech Development LLC
Location: United States (Remote)
Employment Type: Contract / Part-Time / Project-Based
Experience Level: Mid-Level to Senior (5+ Years Preferred)
Industry: Embedded Systems, Electronics, IoT & Product Development
About ZyntelliTech Development LLC
ZyntelliTech Development LLC is a U.S.-based engineering and technology development company specializing in custom electronic hardware, embedded firmware, IoT solutions, and full-stack software development.
We partner with startups, technology companies, and established businesses to transform innovative ideas into reliable, production-ready products.
Our engineering expertise includes PCB design, microcontroller firmware, embedded Linux, wireless connectivity, industrial automation, cloud integration, and end-to-end product development.
Website: https://www.zyntellitech.com
Position Overview
We are seeking a talented and experienced Embedded Systems Engineer based in the United States to join our growing engineering network.
The ideal candidate has strong hands-on experience in embedded firmware development, hardware integration, debugging, and technical problem-solving.
You will collaborate with our engineering team and clients to develop innovative embedded products, troubleshoot complex technical challenges, and deliver reliable solutions.
This position offers opportunities to work on diverse projects involving IoT devices, industrial controllers, wireless sensor systems, consumer electronics, and connected products.
Key Responsibilities
Design, develop, test, and maintain embedded firmware using C/C++.
Develop firmware for ARM Cortex-M microcontrollers, including STM32, ESP32, Nordic nRF52/nRF53, NXP, and TI platforms.
Implement and debug communication protocols, including UART, SPI, I2C, CAN, RS-485, USB, Ethernet, BLE, Wi-Fi, and MQTT.
Develop real-time embedded applications using FreeRTOS, Zephyr RTOS, or embedded Linux.
Integrate sensors, actuators, displays, wireless modules, and peripheral devices.
Perform hardware bring-up, firmware debugging, and system-level troubleshooting.
Collaborate with hardware engineers on schematic reviews, PCB validation, and prototype testing.
Optimize firmware for power consumption, memory utilization, performance, and reliability.
Develop and maintain bootloaders, OTA firmware updates, and device communication interfaces.
Participate in technical discussions, requirements analysis, and solution development with clients.
Prepare technical documentation, test reports, and development progress updates.
Collaborate remotely with multidisciplinary engineering teams.
Required Qualifications
3+ years of professional experience in embedded systems or firmware development preferred.
Strong proficiency in embedded C/C++ programming.
Hands-on experience with STM32, ESP32, Nordic Semiconductor, or similar microcontroller platforms.
Solid understanding of digital electronics, microcontroller peripherals, and embedded hardware architecture.
Experience with FreeRTOS, Zephyr, or other real-time operating systems.
Proficiency in debugging embedded hardware and firmware using oscilloscopes, logic analyzers, and JTAG/SWD debuggers.
Experience with Git, version control, and collaborative development workflows.
Strong analytical, troubleshooting, and communication skills.
Ability to work independently and collaborate effectively with remote engineering teams.
Must be based in the United States.
Preferred Qualifications
Experience with embedded Linux platforms such as Raspberry Pi, BeagleBone, or NXP i.MX.
Knowledge of PCB schematic design and layout using KiCad, Altium Designer, or similar tools.
Experience with wireless technologies, including BLE, Wi-Fi, LoRa, LTE-M, NB-IoT, and cellular IoT.
Experience with cloud-connected IoT solutions using AWS IoT, Azure IoT, MQTT, or REST APIs.
Familiarity with secure boot, OTA updates, low-power design, and battery-powered embedded devices.
Experience with LVGL, touchscreen HMIs, or embedded graphical interfaces.
Knowledge of manufacturing support, product validation, and production testing.
Experience communicating directly with U.S.-based customers and technical stakeholders.
What We Offer
Flexible remote collaboration opportunities.
Competitive compensation based on experience and project scope.
Opportunities to work on innovative hardware, firmware, and IoT projects.
Collaboration with experienced engineers across multiple technical disciplines.
Potential for long-term cooperation and recurring engineering projects.
A professional and collaborative working environment.
How to Apply
Interested candidates are encouraged to apply through LinkedIn with an updated resume or contact us directly at info@zyntellitech.com
Please include:
A brief introduction to your embedded engineering experience.
Your primary microcontroller platforms and technical expertise.
Examples of relevant embedded firmware or hardware projects.
Your availability and preferred engagement type.
We look forward to connecting with talented embedded systems engineers who are passionate about developing innovative technology.
ZyntelliTech Development LLC
Website: https://www.zyntellitech.com
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Work arrangement
Yes