Senior Software Engineer

THERMOWORKS INC • American Fork, UT

5d • Onsite

About The Position

ThermoWorks is seeking a hands-on Senior Software Engineer for its Product Development team. This is an onsite, firmware-focused role at ThermoWorks headquarters in American Fork, Utah; remote and hybrid schedules are not available. The engineer will build and improve software for connected products, primarily embedded firmware with some backend programming to support devices. Work spans multiple projects, taking software from requirements and prototypes through integration, validation, delivery, and ongoing support. The role is not focused on circuit design or PCB layout. Occasional travel, including international travel, may be required.

ThermoWorks’ connected temperature devices and gateways use technologies such as ESP32, C/C++, Wi-Fi, Bluetooth Low Energy, MQTT, sensors, displays, and over-the-air firmware updates. The engineer will work across device firmware and supporting backend services, collaborating with hardware, mobile, cloud, product, and manufacturing teammates to deliver reliable end-to-end products. The role suits a self-starter who can advance work with limited day-to-day direction and solve open-ended engineering problems. Familiarity with managing and leveraging multiple AI agents to accelerate software development workflows is expected.

Requirements

• At least 5 years of professional embedded software or firmware experience, including delivering products from development through release.
• Strong C/C++ skills and experience developing and debugging software for microcontroller-based products.
• Experience with real-time or event-driven systems and integrating firmware with hardware and connected services.
• Experience or demonstrated ability in backend programming, such as developing services or APIs that support connected products.
• Familiarity with collaborative software practices such as version control, code review, and testing.
• Self-directed approach, sound problem-solving skills, and ability to make progress across multiple projects.
• Clear communication and effective collaboration with cross-functional teams.
• Ability to work onsite at ThermoWorks headquarters.
• Willingness and ability to travel occasionally, including internationally.
• Familiarity with managing and leveraging multiple AI agents to accelerate software development workflows.

Nice To Haves

• ESP32 and ESP-IDF, FreeRTOS, or comparable embedded platforms.
• Wi-Fi, BLE, MQTT, device provisioning, secure communications, telemetry, or OTA-update systems.
• Experience integrating firmware with cloud services, APIs, mobile applications, or IoT platforms.
• Temperature measurement, thermocouples, thermistors, RTDs, strain gauges, PID control, or instrumentation.
• Battery-powered products, low-power firmware, and battery-life optimization.
• Hardware bring-up and sensor or display interfaces.
• Automated firmware testing, manufacturing test, reliability engineering, or production ramp experience.
• Experience or familiarity with multi-agent orchestration, agentic workflows, or integrating automated developer/task agents into CI/CD pipelines and software workflows.

Responsibilities

• Develop and maintain embedded firmware for connected products, including sensor interfaces, connectivity, diagnostics, power management, and OTA updates.
• Develop and maintain backend software and integrations that support connected devices, their data, and device-facing features.
• Take software features from requirements and implementation through unit, integration, and product testing, and maintain clear technical documentation.
• Integrate device software with sensors, displays, wireless networks, mobile applications, and cloud services in collaboration with the teams responsible for those systems.
• Debug prototypes and field issues across firmware, connectivity, and hardware boundaries, and improve product reliability and performance.
• Contribute to multiple projects by communicating progress and risks, managing priorities, and working with product, hardware, cloud, mobile, and manufacturing teammates.
• Support product releases, manufacturing readiness, and sustaining engineering.
• Travel occasionally, including internationally, as project needs require.
• Perform other duties as assigned.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed