Senior Firmware Engineer

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Why join us Tractian is the Physical AI for asset-heavy industries, now valued at $1.4B and trusted by more than 2,000 facilities worldwide. We’re taking on the world’s trillion-dollar downtime problem by building the hardware, AI, and software that give frontline workers real control over the machines that run the planet. Hardware at Tractian The Hardware team is responsible for designing and improving our IoT devices, dealing with every step of the development process, ranging from PCB design, firmware programming, case design, validations and certifications, always aiming to build trustworthy products that can be produced at a mass scale.

What you'll do As a Senior Firmware Engineer, you will be responsible for designing and coding the Embedded Software inside our IoT devices. What does that entail? Building the new generations of firmware in our devices, improving application logics, coming up with new algorithms, and troubleshooting complex client problems is some of what you can expect. Your end goal is to help Tractian provide online machine monitoring for every maintenance team in the world using fast and reliable IoT.

Responsibilities Design firmware architectures, develop new features, and build performance-intensive, memory constrained apps while maintaining a high-quality modern C/C++ code. Troubleshoot complex client problems, debug firmware based on collected data, understand the root cause of problems and come up with solutions. Develop firmware solutions based on hardware, power, and feature constraints of a new generation of devices. Design and implement test routines to validate both logical and firmware-related electrical functionalities of our IoT devices. Generate and maintain documentation for algorithms, logics, and code base. Follow guidelines and best practices for version control, repository management, and firmware releases.

Requirements 5+ years experience with embedded software development, RTOS such as freeRTOS, low-level frameworks such as CMSIS, ESPIDF, and STM HAL. Expert-level in modern C/C++ coding skills. Strong understanding of data structures and data theory. Comprehension of Object Oriented Programming concepts and practices. Expertise in embedded systems development. Knowledge of electronic concepts, topologies and components. Ability to read and understand advanced technical documentation and data.

Bonus Points Experience with other low-level programming languages. Strong comprehension Digital Signal Processing concepts and applications. Understanding of Network Theory and wireless protocols (WiFi, Bluetooth, Cellular, etc.). Scripting languages such as Python. Fluent English proficiency. Live or have availability to move to Sao Paulo.

Compensation &

Benefits Competitive

Compensation 30 days of paid annual leave Education and courses stipend Earn a trip anywhere in the world every 4 years R$1.035/month for meals allowance Health plan with national coverage and without coparticipation Dental Insurance: we help you with dental treatment for a better quality of life. Wellhub Membership: Access a wide range of gyms and training programs. I want to apply See also Firmware Quality Assurance Analyst Research and Development São Paulo, SP Hardware Engineer Research and Development São Paulo, SP Mechanical Design Engineer Research and Development São Paulo, SP View all open positions Tractian Ranked #24 Fastest-Growing Company in North America Read More If you want to build a ship, don't organize people to collect wood, assign them tasks, and give orders. Instead, teach them to long for the vast and endless sea. Antoine Saint-Exupery about Meet Tractian Case Studies Press support Contact Us Help Center Policies Trust Center Terms of Use Your Privacy Choices © 2026 Tractian Technologies Inc. All Rights Reserved.