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Sigma Group Logo Sigma Group · IT - Software Development

Embedded Software Developer (Real-Time Linux / FreeRTOS) Level 2

Sweden, Västerås · Job Posted May 16, 2026
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Job Description

We are looking for an Embedded Software Developer to design and develop real-time embedded software running on Real-Time Linux (PREEMPT_RT) and/or FreeRTOS platforms. The role is part of a cross-functional Scrum team delivering high-quality products within the substation automation domain, with strong focus on determinism, performance, and reliability. R&D Software Development includes requirement management, software design, design reviews, and functional verification. In addition to meeting functional requirements, the consultant is expected to contribute to achieving targets related to quality, cost, and delivery time. Established work processes and associated tools are provided and are expected to be followed unless otherwise agreed. Under general guidance from a supervisor or senior engineer, the consultant will perform engineering tasks requiring sound judgment and application of standard engineering principles and practices. The role also includes contributing to continuous improvements within the team to increase efficiency and customer satisfaction.

Job Responsibility

  • Develop and optimize real-time software on embedded Linux and RTOS-based platforms within the substation automation domain
  • Implement software based on approved implementation specifications and technical proposals
  • Drive software quality through test automation, code reviews, and continuous improvement initiatives
  • Analyze and improve resource utilization, latency, jitter, and scheduling behavior
  • Debug issues across RTOS/kernel, application, and hardware layers
  • Participate actively in Scrum ceremonies and collaborative agile development

Requirements

  • 2–6 years of experience within the relevant field combined with a Bachelor’s or Master’s degree or another technical degree combined with 10–15 years of relevant work experience
  • Experience working with real-time embedded systems using Real-Time Linux and/or FreeRTOS
  • Proficiency in C/C++ and embedded systems programming
  • Understanding of scheduling, interrupts, synchronization, and concurrency
  • Experience with Ethernet and CAN communication in embedded systems
  • Experience working with MCUs, SoCs, and low-level hardware interfaces
  • Strong communication and teamwork skills
  • Experience working in agile development environments
  • Good command of the English language

Nice to have

  • Experience within power systems, industrial automation, or substation automation
  • Experience with kernel-level or RTOS-near software development
  • Experience with performance optimization and debugging of real-time systems
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