From the Mariana Trench, the deepest point on earth, to surging shorelines and anywhere in-between, we make the impossible possible through our continuous passion for innovation.

Our people design, engineer and manufacture technologies that are enabling our customers to discover, navigate, measure, detect and communicate in the toughest environment on earth: Our oceans. We’ve been actively developing the technology to make the oceans accessible for over 50 years and we’re only just getting started… At Sonardyne, we value different ways of thinking. Whether you think in code, patterns, systems, or steps, your unique perspective is important to us.

We are looking for an experienced Embedded Software Engineer to join our Hamburg-based team at Sonardyne GmbH. In this role, you will take technical ownership of embedded software solutions used in advanced communication, navigation, and data acquisition systems. You will be involved across the full product lifecycle, working closely with international teams to deliver high-quality, performance-critical embedded systems.

If you join you will:

• Design, develop, and maintain embedded software in C++ for communication, navigation, and data acquisition systems

• Develop primarily on STM microcontrollers and ARM-based processors

• Design and implement RTOS-based systems, with a strong focus on Zephyr

• Develop bare-metal software for time-critical and resource-constrained applications

• Take technical responsibility for embedded software architecture and concepts

• Develop and integrate edge-AI functionality into embedded systems

• Optimise algorithms for memory- and performance-constrained environments

• Set up and use CI/CD pipelines for embedded software development

• Perform code reviews, debugging, and quality assurance activities

• Work end-to-end: from requirements and architecture through implementation, testing, system integration, commissioning, and field testing

• Collaborate closely with international development teams and stakeholders

• Travel occasionally for system integration and testing activities

About You :

Ideally we would like:

• A degree in Computer Science, Electrical Engineering, or a comparable qualification

• Several years of professional experience in embedded software development (senior level)

• Strong C++ skills for embedded systems

• Deep hands-on experience with RTOS, ideally Zephyr

• Solid experience in bare-metal development

• Practical experience with STM microcontrollers

• Experience working with CI/CD workflows in embedded environments

• Strong understanding of embedded architectures and low-level software

• Sound knowledge of electronics and circuit design

• Native-level or near-native English proficiency

• Fluent German language skills

• A structured, self-driven working style and enthusiasm for hands-on system development

It would be a bonus if you had:

• Experience in signal processing

• Experience with Embedded Linux

• Experience with edge AI or AI-supported development tools (e.g. AI-assisted coding, model-based or automated code generation)

Why Join Sonardyne?

• Work on technically challenging, real-world embedded systems

• Take ownership of architecture and design decisions

• Collaborate with international, highly skilled engineering teams

• Be involved across the entire development lifecycle, from concept to field deployment

• Permanent role with long-term development opportunities