Embedded Firmware Engineer

Carrier; Matosinhos; On-site; EUR 28,000 - 56,000; Full time

Benefits offered by this job

Competitive salary

Benefits package

Training opportunities

Career growth

Job summary

Addvolt seeks an Embedded Firmware Engineer to join our Porto team. You will work across hardware, firmware, and software to build telematics solutions and power electronics control with reusable firmware components.

You will define requirements, implement robust code, and perform thorough validation and testing to ensure high quality releases across multiple projects.

Qualifications

• 3+ years of embedded C in real projects.
• Experience with ARM Cortex-M microcontrollers.
• Strong knowledge of CAN, UART, SPI, I2C, TCP/IP.
• Write clean, maintainable, reusable code.
• Debug with scopes and logic analyzers.

Responsibilities

• Develop firmware for telematics and IoT projects.
• Create reusable drivers and modules for multiple firmware projects.
• Analyze issues, define requirements, and validate solutions.

Skills

Embedded C

Microcontrollers

CAN/UART/SPI/I2C/TCPIP

Clean code

Debugging

Embedded systems

Problem solving

Multidisciplinary work

Tools

CLI tools

PCB design tools

Python scripting

Job description

Job Title: Embedded Firmware Engineer

Location: Porto, Portugal

Contract Type: Permanent Contract | Full-time

Who We Are

Addvolt is at the forefront of global transport electrification, leading the sector with the world’s first plug-in hybrid system for refrigerated goods transport. Our innovative technology transforms refrigerated trucks into quieter, zero-emission vehicles, helping to revolutionize the industry.

With a presence in more than 20 markets across three continents, we work closely with partners and customers to design and implement cutting-edge, sustainable energy solutions that reduce transportation costs and accelerate the transition to clean and intelligent mobility.

What We Are Looking For

Our Embedded teams are multidisciplinary, working in an integrated way across hardware, firmware, and software.

We are currently looking for an Embedded Firmware Engineer with high energy, a strong work ethic, and a collaborative mindset.

In this role, you will have the opportunity to work on:

Telematics and IoT Projects

Collecting and processing data from multiple sources and protocols, transmitting it to backend services, and controlling systems based on received data or remote requests.

Product Features

Analyzing issues and new feature requests, defining requirements, designing and implementing solutions, as well as performing thorough validation and testing.

Firmware Architecture

Developing reusable drivers and modules applicable to multiple firmware projects, ranging from telematics systems to power electronics control, as well as application-level logic.

Embedded Firmware Engineer

Required Skills

• Embedded C Programming: At least 3 years of experience programming embedded systems in C.
• Microcontrollers: Hands‑on experience with microcontrollers (e.g. ARM Cortex-M).
• Communication Protocols: Knowledge of CAN, UART, SPI, I²C, and TCP/IP.
• Clean and Reusable Code: Ability to write clean, maintainable, and reusable code.
• Debugging: Experience debugging using tools such as oscilloscopes and logic analyzers.
• Embedded Systems: Strong understanding of embedded systems and low-level hardware interfaces.
• Problem Solving: Strong analytical and problem‑solving skills.
• Multidisciplinary Work: Comfortable collaborating in teams spanning hardware and software.

Nice To Have

• Comfortable using CLI tools for development and debugging.
• Modular Architecture: Experience designing modular architectures in embedded systems.
• Power Electronics: Basic knowledge of power electronics and energy management systems.
• Automation and Testing: Ability to write automation and test scripts, preferably in Python.
• Security: Knowledge of best security practices in embedded systems.
• PCB Design: Basic experience or understanding of PCB design and layout tools.

Values And Other Qualifications

• Alignment with Addvolt values: Transparency, agility, and trust.
• Clear and transparent communication: Ability to communicate effectively with technical and non-technical stakeholders.
• Agile Mindset: Basic understanding of Agile principles and ways of working.
• English: Good command of spoken and written English.
• Willingness to travel: Availability for occasional national and international travel.

What Do We Offer?

• Permanent full-time contract
• Competitive salary and attractive benefits package
• Excellent company culture and work environment
• Training and development opportunities

What Will the Selection Process Be Like?

• Initial contact with our recruitment and selection team
• Interview with the hiring manager

WHY ADDVOLT

At Addvolt, you will have the opportunity to develop your expertise in hardware, software, and firmware within a highly collaborative team environment. As part of a company positioned at the forefront of smart transportation, your work will directly contribute to shaping the future of urban mobility.

High performance at Addvolt is recognized and opens doors to greater responsibilities and new opportunities within the company. As we continue to grow, you will be able to evolve in your career while playing a key role in projects where your contribution has a direct and visible impact on our products and strategic direction.

By joining us, you will help build a greener, quieter, and cleaner future for urban environments. You will also have the opportunity to work with emerging technologies, from early-stage prototyping to large-scale real-world deployment.

We value sustainable performance and understand the importance of work-life balance. That’s why we offer flexibility so you can thrive both professionally and personally.

Our Commitment to You

We aim to create an environment where you feel included, with diversity and inclusion as drivers of growth and innovation. We develop and implement best-in-class programs and practices, offering enriching career opportunities, listening to employee feedback, and continuously challenging ourselves to do better.

Pay Range

€28,000.00-€56,000.00