Software Engineer - Embedded Linux Platform

Senior System Engineers within HW, Radio, Embedded Software & Security Apply for this job Multiply Teknik & IT is a dedicated Engineering and IT partner serving customers with complex technical and digital challenges. We help identify and amplify customer value through engineering, software, cybersecurity, system development, automation, cloud, integration and end-to-end delivery. We are now looking for Senior System Engineers to strengthen our teams across assignments involving hardware, radio systems, embedded software, system architecture, cybersecurity and safety-critical technology. You may work on solutions involving connected products, embedded platforms, radio communication, electronics, secure systems, industrial applications, validation, requirements, architecture and product development in demanding technical environments. System Engineering Tracks Please apply under the track that best matches your experience. Senior Hardware System Engineer Relevant experience: Hardware system design, electronics, embedded systems, PCB understanding, sensors, power electronics, product development, requirements, verification, validation, technical documentation and cross-functional engineering work. Questions: How many years of experience do you have within hardware or electronics engineering? Have you worked with system-level hardware design or product development? What types of products, platforms or technical systems have you worked with? What experience do you have with requirements, verification, validation or technical documentation? Senior Radio System Engineer Relevant experience: Radio systems, RF engineering, wireless communication, antennas, connectivity, telecom, 4G/5G, Bluetooth, Wi-Fi, GNSS, signal quality, testing, certification, troubleshooting and system-level radio performance. Questions: How many years of experience do you have within radio, RF or wireless systems? Which radio technologies or communication standards have you worked with? Have you worked with testing, troubleshooting, certification or performance analysis? What types of products, platforms or customer environments have you supported? Senior Embedded Software Engineer Relevant experience: Embedded C/C++, real-time systems, Linux, RTOS, device drivers, firmware, microcontrollers, communication protocols, diagnostics, software architecture, testing, CI/CD, debugging and product-oriented software development. Questions: How many years of experience do you have with embedded software development? Which languages, platforms and operating systems have you worked with? Have you developed firmware, drivers, communication protocols or embedded applications? What tools have you used for debugging, testing, CI/CD and version control? Senior Security System Engineer Relevant experience: Cybersecurity, secure system design, embedded security, product security, threat analysis, risk assessment, security requirements, vulnerability management, encryption, secure communication, ISO 21434, IEC 62443 or similar standards. Questions: How many years of experience do you have within cybersecurity or product security? Have you worked with security requirements, threat analysis or risk assessment? What security standards, tools or methods have you used? Have you worked with embedded, industrial, automotive, telecom or safety-critical systems? General Skills We Value Across all tracks, we value strong system engineering fundamentals, technical leadership, requirements management, architecture thinking, verification and validation, structured problem-solving, cross-functional collaboration and clear communication. Bonus points for experience from industrial systems, automotive, telecom, energy, medtech, IoT, safety-critical systems, cybersecurity or secure product development. Swedish or Norwegian fluency is also a plus. Citizenship & Security Check Some assignments may involve security-classified environments, regulated industries or customer-specific security requirements. For these roles, candidates may need to meet citizenship requirements and be able to pass a security screening or background check before starting the assignment. Please include in your application: Your citizenship or work authorization status. Whether you are able to complete a customer-required security check. Any previous experience from security-classified, defence, telecom, energy, automotive, industrial or other regulated environments. How to Apply Please state which track you are applying for: Senior Hardware System Engineer, Senior Radio System Engineer, Senior Embedded Software Engineer, Senior Security System Engineer, or Senior System Engineer. Include your CV or LinkedIn profile, preferred technical area, years of experience, relevant projects, availability, language skills and brief answers to the questions for your chosen track.

ABOUT US STARK is a defence technology company redefining the engineering and deployment of autonomous platforms. Our core mission is to deliver fully operational unmanned systems, integrating the critical subsystems, including Electronic Warfare, necessary for NATO forces to maintain a decisive advantage in contested environments. We do whatever is required to achieve platform autonomy, grounded in precision, responsibility, and uncompromising engineering discipline. YOUR MISSION At STARK, we are building the next generation of autonomous platforms capable of navigating the world’s most contested environments. We are currently hiring for multiple Software Engineering positions where the primary mission is to ensure our fleet maintains command, control, and situational awareness against near-peer threats. Electronic Warfare (EW) is at the heart of everything we do. We’re looking for engineers who are passionate about the electromagnetic spectrum and eager to join a team that lives and breathes RF. Whether you specialise in signal processing, communications, or EW effects, your background in EW and high-performance C++ is what matters most. We prioritise deep expertise and a drive to solve complex problems over meeting every single sub-specialty requirement. RESPONSIBILITIES * Design high-performance C++ software for real-time signal processing, waveform manipulation, and mission-critical EW functions. * Develop anti-jamming techniques, frequency hopping (FHSS), and adaptive filtering to bypass active electronic countermeasures. * Design algorithms for RF sensing, signal detection, and situational awareness to identify and neutralise threats in dynamic environments. * Collaborate with hardware and systems teams to tune RF front-ends, ensuring software is perfectly calibrated to physical constraints. * Own the stack from initial design and mathematical modelling to rigorous bench testing and field trials. We are looking for candidates with a strong foundation in Modern C/C++ and a professional background in Electronic Warfare, ideally involving one or more of the following: * Deep understanding of the electromagnetic spectrum, DSP, Fourier methods, and modulation theory (QAM, QPSK, OFDM). * Experience with low-probability-of-intercept (LPI) links, digital modulation schemes, and the underlying physics of RF propagation. * Proficiency in embedded systems, Linux networking, specifically regarding radio-based mesh networks or point-to-point links. * Exposure to jamming theory, threat-driven RF effects, or cognitive radio for automated interference avoidance. QUALIFICATIONS * Strong engineering skills at both the systems design and detailed implementation levels.  * Strong proficiency in modern C/C++ (memory management, concurrency, performance analysis). * Significant interest in physics/RF or a strong preexisting understanding of RF processing fundamentals and the electromagnetic spectrum. * Clear and structured communication skills for cross-functional technical collaboration. RELEVANT BACKGROUNDS  * High end system software engineering in any context where both details and system level architecture is critical to mission success * Defence & Aerospace: Radar systems, electronic countermeasures, or encrypted tactical comms * Robotics: Long-range, encrypted data links for UAS/UGV or autonomous systems. * SDR Development: Extensive experience with platforms like USRP, pluto SDR, LimeSDR and frameworks like GNU Radio. * Advanced Engineering: Backgrounds in radio-waveform development, X-ray systems, or mathematically driven system design. NICE-TO-HAVE / BONUS SKILLS * Experience with MIMO antenna systems and beam-forming. * High performance computing and software benchmarking experience. * Familiarity with cryptographic standards for securing over-the-air transmissions. * Custom protocol design for low-bandwidth, high-latency environments. * Hands-on experience with RF waveform design or amateur radio. * Strong interest in physics, electromagnetic propagation, and waveform engineering. * Hands-on experience with RF waveform design and amateur radio. * Familiarity with wireless & cable-borne data formats (QAM-64, QPSK). * Exposure to jamming theory, threat-driven RF effects, and EW tactics. * Experience in signal processing and mathematical modelling (Fourier methods, modulation theory, filtering, etc.).