Senior Firmware Engineer

Tractian

São Paulo, SP remote Until 8/21/2026 First posted March 27, 2025 Last posted March 27, 2025

Job description

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.

About this role

Summary

Design, develop, troubleshoot, and document firmware for IoT devices in a hardware team.

Job title

Senior Firmware Engineer

Experience level

5+ years

Industry

hardware

Location requirements

São Paulo, SP; remote is not specified

Salary

Not specified

Management role

Skills & keywords

Required skills

embedded systemsRTOSC/C++data structureshardware concepts

Preferred skills

Pythonsignal processingwireless protocolsEnglish

Specializations

embedded systemsC/C++firmwareIoTRTOS

Locations

Structured locations inferred from the posting.

São Paulo, State of São Paulo, Brazil

On-site City