Embedded Firmware Engineer (ESP32 / Wireless)

Join a dynamic IoT and embedded systems team as a Senior Firmware Software Engineer, helping shape connected products that deliver meaningful insights and support digital transformation. This hybrid role offers the opportunity to work on innovative firmware solutions for edge devices and gateways in a collaborative, cross-functional environment.
Responsibilities

• Architect, design, and develop firmware applications for IoT and embedded systems
• Partner with stakeholders to define system requirements for backend stack components and IoT applications
• Contribute to new product development alongside hardware, software, subject matter experts, and external partners
• Develop and test IoT systems, including edge devices and gateways
• Evaluate emerging tools, techniques, and processes to improve development practices
• Support firmware-related efforts across the product lifecycle in a fast-moving technical environment

Skills

• Bachelor's degree in Computer Engineering, Computer Science, Electrical Engineering, or a related technical field
• 5+ years of experience developing embedded firmware in C or C++
• Experience with RTOS-based development such as FreeRTOS, Zephyr, or similar platforms
• 3+ years of experience working with ESP32 WiFi and Bluetooth modules in embedded systems
• Hands-on experience with serial communication protocols such as UART, SPI, and I2C
• Experience working with ARM-based microcontrollers such as NXP, Silicon Labs, ST Micro, or ESP32
• Strong communication, organization, and collaboration skills
• Ability to work independently while contributing effectively to a multidisciplinary team

Preferred Skills

• Experience with embedded firmware platform support, board support package development, or board bring-up
• Exposure to bootstrap loaders, embedded file systems, CAN Bus, or Azure IoT development
• Background working in Agile development environments
• Comfort adapting to evolving priorities and handling multiple technical tasks or projects
• Curiosity and initiative to stay current with new developments in embedded and IoT technologies

Horizontal is committed to fostering a workplace where diversity, equity, and inclusion are valued and respected. We welcome candidates from all backgrounds and encourage applicants who bring unique perspectives and experiences to apply.
By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.
Please apply through this online posting or by visiting our Job Board at Applications will be accepted for 4 weeks. For those that join the team, we offer competitive compensation and benefits including medical, dental, vision, and retirement. Check out all we have to offer and how you can become part of the Horizontal Talent Team. The pay range for this role is $49 - $85 per hour based on qualifications and experience.