Embedded Software Engineer(C/C++, Linux & RTOS)

Radeptus i Sverige AB; Lunds kommun; On-site; SEK 650,000 - 900,000; Full time

Job summary

Comsys AB in Lund, Sweden, is seeking an Embedded Software Engineer to join the R&D team. You will develop low-level software for embedded systems, working closely with hardware, FPGA and system engineers to deliver high-performance products.

The role focuses on embedded C/C++, Embedded Linux, RTOS, networking and secure software practices, with a hands-on, problem-solving approach and collaboration across disciplines in an agile environment.

Qualifications

• A degree in Computer Science, Computer Engineering, Electrical Engineering or equivalent experience.
• Professional experience in embedded software development.
• Strong programming skills in C and C++.
• Experience with Embedded Linux and/or RTOS.
• Experience with low‑level programming, embedded networking and debugging.
• Experience developing secure embedded software and applying cybersecurity requirements in accordance with IEC 62443.
• A structured, analytical and solution‑oriented approach to problem solving.
• Good communication skills in English.

Responsibilities

• Develop low-level software and embedded system components
• Work with Embedded Linux and RTOS in resource‑constrained and performance‑critical systems
• Develop and integrate networking functionality in embedded systems
• Build, customize and maintain embedded Linux
• Collaborate closely with hardware, FPGA and system engineers during development and integration
• Debug complex software/hardware issues and troubleshoot at system level
• Contribute to automated testing, development tools and continuous improvement of software processes

Skills

Embedded software

C/C++

English

Low-level programming

Networking

Cybersecurity IEC 62443

System-level debugging

Agile development

Education

Bachelors in Computer Science/Engineering or equivalent

Tools

Embedded Linux

RTOS

Git

CI/CD

Job description

About Comsys

Comsys AB is a Swedish cleantech company based in Lund, developing advanced solutions for power quality and energy efficiency. Our products help industries and critical infrastructure use electricity more reliably and efficiently, addressing complex challenges such as harmonics, resonance, flicker and load imbalance.

At the heart of our technology is our patented Active Dynamic Filtering (ADF) technology. With more than 20 years of experience and customers in over 50 countries, Comsys is continuously pushing the boundaries of power electronics and developing high-performance solutions for demanding industrial applications.

At Comsys, engineering is at the core of what we do. You will work in a highly cross-functional environment, collaborating across disciplines such as software, electronics, FPGA and systems engineering to turn complex technology into robust, high-performance products.

https://comsys.se

Do you enjoy writing software that interacts closely with hardware – and seeing your code become part of real, high-performance products?

We are looking for an Embedded Software Engineer to join our R&D team in Lund. This is an opportunity to work hands‑on with embedded C/C++, Embedded Linux, RTOS, networking and low-level software, in close collaboration with experienced hardware, FPGA and system engineers.

You will be part of the development of advanced industrial products where reliability, performance and robust software matter.

The Role

As an Embedded Software Engineer, you will contribute throughout the product development lifecycle – from software architecture and low-level implementation to integration, verification and release.

You will work close to the hardware and collaborate daily with software, hardware, FPGA and system engineers. The role offers a mix of hands‑on development, problem solving, debugging and system-level thinking.

Your responsibilities will include:

• Develop low-level software and embedded system components
• Work with Embedded Linux and RTOS in resource‑constrained and performance‑critical systems
• Develop and integrate networking functionality in embedded systems
• Build, customize and maintain embedded Linux
• Collaborate closely with hardware, FPGA and system engineers during development and integration
• Debug complex software/hardware issues and troubleshoot at system level
• Contribute to automated testing, development tools and continuous improvement of software processes

About You

We are looking for an engineer who enjoys understanding how things work all the way down to the system level. You are comfortable working close to hardware and are motivated by solving complex technical problems. At the same time, you are passionate about agile development and helping the team become better, and enjoy combining technical depth with an interest in Scrum, methodology and team development.

You likely have:

• A degree in Computer Science, Computer Engineering, Electrical Engineering or equivalent experience
• Professional experience in embedded software development
• Strong programming skills in C and C++
• Experience with Embedded Linux and/or RTOS
• Experience with low‑level programming, embedded networking and debugging
• Experience developing secure embedded software and applying cybersecurity requirements in accordance with IEC 62443
• A structured, analytical and solution‑oriented approach to problem solving
• Good communication skills in English

It's a Plus If You Have

• Experience with Rust in embedded or systems programming
• FPGA development experience
• Experience developing automated tests or automated test systems
• Experience with CI/CD, continuous integration or software quality processes
• Experience working with industrial, power electronics, control systems or other hardware‑near applications

Why Join Us?

At Comsys, you won't be developing software in isolation. You will work at the intersection of software, electronics, FPGA and system engineering, contributing to products that solve real industrial challenges.

You will have the opportunity to take ownership, work across the technology stack and develop your expertise in embedded systems, Linux, real‑time software and hardware integration.

If you are an Embedded Software Engineer who enjoys C/C++, Linux, RTOS, low-level development and working close to hardware, we'd like to hear from you.