Senior Firmware Engineer (IoT)

TL;DR

Senior Firmware Engineer (IoT): Designing and coding embedded software for IoT devices with an accent on firmware architecture, performance optimization, and memory-constrained applications. Focus on building new firmware generations, developing complex algorithms, and troubleshooting critical client issues to enable global machine monitoring.

Location: Remote (São Paulo, Brazil) or hybrid; availability to move to Sao Paulo is a bonus.

Company

hirify.global is transforming the industrial world by fusing cutting-edge hardware with innovative software into one powerful platform to empower frontline maintenance workers.

What you will do

• Design firmware architectures and develop new features using modern C/C++.
• Build performance-intensive and memory-constrained applications for IoT devices.
• Troubleshoot complex client problems and debug firmware based on collected data to find root causes.
• Develop firmware solutions based on hardware, power, and feature constraints for new device generations.
• Design and implement test routines to validate logical and electrical functionalities.
• Generate and maintain documentation for algorithms, logic, and the code base.

Requirements

• 5+ years of experience in embedded software development.
• Proficiency with RTOS (e.g., FreeRTOS) and low-level frameworks such as CMSIS, ESPIDF, and STM HAL.
• Expert-level modern C/C++ coding skills.
• Strong understanding of data structures, data theory, and Object-Oriented Programming.
• Knowledge of electronic concepts, topologies, and components.
• Ability to read and interpret advanced technical documentation.

Nice to have

• Experience with other low-level programming languages.
• Strong comprehension of Digital Signal Processing (DSP) concepts.
• Understanding of Network Theory and wireless protocols (WiFi, Bluetooth, Cellular).
• Proficiency in scripting languages such as Python.
• Fluent English proficiency.

Culture & Benefits

• Competitive salary and stock options.
• 30 days of paid annual leave.
• Education and courses stipend.
• A trip anywhere in the world every 4 years.
• Health plan with national coverage and dental insurance.
• Meal allowance (R$1,035/month) and sports incentive (R$300/month).