Help Shape the Future of Technology

Do you want to develop the next generation of embedded systems alongside some of the brightest minds in the industry? At Sigma Connectivity WSI, we combine deep technical expertise, global customers, and real innovation in projects that make a difference.

About Sigma

Sigma Connectivity WSI is a specialized unit within Sigma Connectivity – a global design and development house with over 700 experts. We create future-ready solutions together with some of the world’s most recognized brands. Our Kista office is home to a close-knit and highly skilled team of about 45 people.

About the Role

As an Embedded Software Developer, you will:

• Develop and optimize software for embedded systems using C/C++
• Set up and manage build environments in Linux (e.g., Yocto, kernel, Buildroot)
• Work close to hardware on platforms such as NXP and Qualcomm
• Design software architectures based on system requirements
• Participate in both in-house and on-site assignments across different industries

You'll be involved in everything from greenfield development to adapting and improving existing systems – always in close collaboration with customers and internal engineering teams.

What We’re Looking For

• Several years of experience in C/C++ development for embedded systems
• Proficiency in Linux-based development (kernel, bootloaders, Yocto)
• Solid understanding of agile methodologies and system-level architecture
• Familiarity with version control, preferably Git
• Proficient in English, both written and spoken

Bonus points for experience with:

• RTOS (Zephyr, FreeRTOS), OTA solutions, communication protocols (MQTT, LwM2M)
• Cloud integration (Azure IoT, AWS Greengrass), CI/CD pipelines, RF, and test automation
• Schematic analysis and working closely with hardware design teams

Why Join Sigma Connectivity WSI?

Cutting-edge technology: Work on assignments for international clients in automotive, telecom, industrial tech, and more

Hands-on development: Access to fully equipped labs to test, build, and validate solutions on-site

Stability & variety: Permanent position with a wide range of projects – in-house and customer-based

Global reach, local feel: A tight-knit team in Kista with the backing of a global tech organization

Personal growth: Constant exposure to new technical environments with support from experienced colleagues

Location & Terms

Location: Kista, Stockholm
Scope: Full-time, permanent employment
Start date: As soon as possible – we’re interviewing continuously
Work setup: Hybrid – the nature of the project determines on-site presence (typically 3 days/week in the office)

Ready to be part of a company where technology, teamwork, and customer impact go hand in hand?

Apply today – we look forward to hearing from you!