Full-Stack Embedded Software Engineer

Full-Stack Embedded Software Engineer

Location: Lisbon(Hybrid)

Employement: Full-Time

About Loop Future

Loop Future combines technology, innovation, and sustainability to create digital solutions that shape the future. By integrating software engineering, cloud solutions, salesforce expertise, and intelligent sourcing, Loop Future connects people, systems, and industries — driving efficiency, growth, and global impact. We are Headquartered in Portugal, but also have international offices in the UK, Switzerland and India. The company brings together a diverse and talented team committed to delivering cutting-edge digital experiences into domains such as TV & Media, Satellite & Space, Consultancy, Retail and many other domains.

About Role

One of our clients, a leading high-tech engineering firm operating in the specialized Defence and communications sector, is expanding their development team. In this role, you will work across the full stack of highly secure systems. This is a unique opportunity bridging the gap between high-level C# Desktop Applications for user interaction and low-level, hardened C/C++ code for Linux (Yocto) and RTOS environments, playing a critical role in protecting mission-critical data.

Responsibilities:

• Design and maintain secure C/C++ applications across Windows (Visual Studio), Linux (Eclipse), and RTOS environments.
• Develop robust C#/.NET desktop applications (WPF/WinForms) for system monitoring, configuration, and secure data visualization.
• Build and secure Yocto-based Linux distributions, ensuring a minimal attack surface and protected boot cycles.
• Design firmware for RTOS with a focus on memory protection, deterministic behaviour, and secure hardware interfacing (SPI, I2C, UART).
• Integrate security controls such as encryption (AES, RSA), Secure Boot, and Hardware Root of Trust (TPM/HSM).
• Ensure seamless and secure communication between C# high-level applications and low-level embedded targets.

Requirements:

• Strong proficiency in C, C++ (Embedded) and C# (.NET / Application level).
• Expert use of Microsoft Visual Studio for both C++ and .NET development, alongside experience with Eclipse-based environments.
• Hands-on experience with Embedded Linux and the Yocto Project (BitBake).
• Solid understanding of RTOS concepts including tasks, semaphores, and ISRs.
• A security-first mindset with knowledge of cryptographic libraries, secure communication protocols (TLS), and vulnerability mitigation.

Ready to shape the future?

If you are a security-minded full-stack embedded engineer looking for your next challenge, we want to hear from you.

📩 Apply directly or drop me a message to chat!

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