Embedded Firmware Engineer

Carrier

. Collect and process data from multiple sources and protocols .

Posted 10/22/2026full-timePorto • PortugalMid-LevelSenior💰 €28,000 - €56,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in programming embedded systems, particularly in C, with a strong understanding of microcontrollers and low-level hardware interfaces. Capable of collaborating effectively across multidisciplinary teams while ensuring high-quality code and system validation.

Highest-signal resume keywords

Embedded Systems ProgrammingMicrocontroller ExperienceData Transmission ProtocolsAnalytical Problem-SolvingAgile Principles

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

C ProgrammingEmbedded SystemsMicrocontrollersCAN ProtocolUART ProtocolSPI ProtocolI²C ProtocolTCP/IP ProtocolDebugging with OscilloscopesDebugging with Logic Analyzers

Soft Skills

Effective CommunicationCollaborationAnalytical SkillsProblem-SolvingAdaptability

Tools & Technologies

Firmware DevelopmentTesting and ValidationAutomation ScriptingDebugging ToolsPCB Design Tools

Industry Keywords

Telematics SystemsPower Electronics ControlModular Embedded ArchitecturesEnergy Management SystemsEmbedded Systems Security

Tech Stack

Tools & technologies

PythonTCP/IP

About the role

Key responsibilities & impact

Collect and process data from multiple sources and protocols
Transmit data to backend services
Control systems based on received data or remote requests
Analyze issues and new feature requests
Define requirements and design and implement solutions
Perform thorough validation and testing
Develop reusable drivers and modules for multiple firmware projects
Develop firmware for telematics systems, power-electronics control, and application-level logic
Collaborate in multidisciplinary hardware, firmware, and software teams
Participate in the recruitment process through an initial recruitment-team contact and hiring-manager interview

Requirements

What you’ll need

At least 3 years of experience programming embedded systems in C
Hands-on experience with microcontrollers, e.g. ARM Cortex-M
Knowledge of CAN, UART, SPI, I²C, and TCP/IP
Ability to write clean, maintainable, and reusable code
Experience debugging with oscilloscopes and logic analyzers
Strong understanding of embedded systems and low-level hardware interfaces
Strong analytical and problem-solving skills
Comfortable collaborating across hardware and software teams
Good command of spoken and written English
Availability for occasional national and international travel
Alignment with Addvolt values: transparency, agility, and trust
Ability to communicate effectively with technical and non-technical stakeholders
Basic understanding of Agile principles and ways of working
Nice to have: CLI development and debugging tools
Nice to have: experience designing modular embedded architectures
Nice to have: basic knowledge of power electronics and energy management systems
Nice to have: automation and test scripting, preferably in Python
Nice to have: knowledge of embedded-systems security best practices
Nice to have: basic experience or understanding of PCB design and layout tools

Benefits

Comp & perks

Permanent full-time contract
Competitive salary and attractive benefits package
Excellent company culture and work environment
Training and development opportunities
Flexibility supporting work-life balance
Career development opportunities and greater responsibilities
Emerging-technology exposure from prototyping to real-world deployment