Experienced Firmware Engineer - low level embedded SW

Demant; Københavns Kommune; Hybrid; DKK 540,000 - 860,000; Full time

Benefits offered by this job

Hybrid work model

Complimentary breakfast

Lunch provided daily

Fitness facilities

Weekly training sessions

Massage services

Parental benefits

Job summary

Demant is seeking a firmware-focused engineer for our Foundation Firmware area in Smørum, Greater Copenhagen. You will design, develop, test, and release low-level firmware for custom ICs in resource-constrained environments, balancing memory, compute, and power usage to meet medical device standards.

Join a 25+ person embedded team collaborating across hardware, software and production to deliver robust real-time firmware with CI/CD and automated testing.

Qualifications

• Bachelor's degree in Electronics, Computer Engineering, or similar.
• At least 3 years in embedded SW development.
• Experience with RTOS and real-time HW handling.
• Ability to read hardware schematics.
• Experience with measurement instruments.
• Experience with Linux, scripting and toolchains.
• Version control with Git.

Responsibilities

• Design, develop and test firmware for our chipset platform.
• Support hardware and production teams in bring up, calibration and verification.
• Contribute to the definition and development of our internally developed ICs.
• Implement safe and efficient C code for real-time applications.
• Help ensure high quality through automated tests and CI/CD.
• Participate in team ceremonies and knowledge sharing.

Skills

Embedded C programming

RTOS

Linux

Reading HW schematics

Measurement instruments

Git

Scripting

Toolchains

Education

Bachelor's degree in Electronics or Computer Engineering

Tools

Git

Linux

Python scripting

Job description

Join us in building the foundation of next generation hearing device platforms.

Are you passionate about firmware close to the metal? Do you enjoy understanding how hardware really works and applying your expertise to build stable, efficient real time embedded systems? Would you like your work to make a real difference for millions of people living with hearing loss worldwide?

If that sounds like you, we would love to hear from you.

Full-time position located at our headquarters in Smørum, Greater Copenhagen area. Please note: We are not considering part time, consultant, or internship contracts for this role.

We expect to conduct first-round interviews in weeks 44-45 and second-round interviews in weeks 45-46.

About The Team

You will join our Foundation Firmware area within the R&D Device SW organization — a group of about 25 highly skilled engineers working in three scrum teams. Together we build and maintain the low level firmware that forms the foundation of all Demant hearing device software platforms.

We work closely with hardware, software and production teams throughout every stage of platform development. The atmosphere in the team is informal, friendly, and highly engaged. We believe the best results come from a fruitful team effort. We support each other, provide constructive feedback, and share knowledge and ideas to continuously improve our solutions and reach common goals.

What You Will Be Working On

Our work spans the full development flow of a resource-constrained platform — from IC specification and early bring-up, through development, verification, and production, all the way to product release. This means working in simulations, on FPGA prototypes, and on real silicon as our platforms mature. Our chipsets are internally developed, multi-core network-on-chip solutions designed for ultra-low-power audio. Our firmware platform includes hardware drivers and HAL, RTOS integration, power management, file handling, communication stacks, security, firmware update functionality and more.

You will design, develop, test, and release firmware for our custom ICs, working closely with other embedded software, hardware, production, and verification teams. Your focus will be on delivering advanced functionality with real-time guarantees for the system, while always balancing memory consumption, compute cycles, and power efficiency to meet the high standards of medical devices. This means writing safe, efficient C code that enables our hearing devices to perform reliably in highly resource-constrained environments. You will use and help improve specialized in-house tools that assist the development process, as well as automated regression tests that safeguard stability and performance of our platform as it evolves.

• Design, develop and test efficient firmware for our chipset platform
• Support hardware and production teams in bring up, calibration and verification
• Contribute to the definition and development of our internally developed ICs
• Implement safe and efficient C code for real time applications
• Help ensure high quality through automated tests and CI/CD
• Participate in team ceremonies and knowledge sharing

What You Bring

You hold a degree in Electronics, Computer Engineering, or similar, and you have a solid hands‑on experience – at least 3 years – within the following areas of embedded SW development:

• Embedded C programming for memory , power and time constrained systems
• Understanding of processor architectures and MCUs
• Real time operating systems (RTOS) and real-time handling of HW
• Reading HW schematics
• Working with measurement instruments such as logic analyzers or oscilloscopes
• Automated unit and system testing
• Version control systems (git)
• Linux, scripting and custom toolchains

You take pride in building high-quality, maintainable code and are comfortable working in large, shared code repositories with comprehensive testing and a complex build flow. You can work independently, but you also enjoy collaborating within the team and across teams to achieve the best results.

Why Demant?

At Demant, we believe in balancing professional passion with a fulfilling personal life.

• Our flexible hybrid work model allows you to work from home up to two days per week.
• Each morning, you can enjoy complimentary breakfast, and lunch is provided daily in our canteen.
• To support your well‑being, you will have access to fitness facilities, weekly training sessions, and massage services.
• If you are parent, we offer attractive parental benefits, including the option to stay home when your young child is unwell.

Above all, we prioritize a respectful and inclusive workplace culture where colleagues support one another, and everyone feels valued.

At Demant we value diversity, equity and inclusion (DE&I) and we are committed to creating an inclusive working environment. We welcome applications from all qualified candidates regardless of ethnic background, personality, age, gender, and education. Diversity is part of our cultural DNA. Women in STEM areas are particularly encouraged to apply, as Demant supports United Nations Sustainable Development Goal 5 on gender equality.