Underwater Hydrophone Sensor Engineer

Optics11; Amsterdam; On-site; EUR 55,000 - 75,000; Full time

Job summary

Optics11 is seeking a Mechanical Development Engineer (Hydrophone Sensor) to contribute to the development and realization of the hydrophone sensor subsystem throughout the product lifecycle. You will translate requirements into robust engineering solutions and advance underwater sensing technology.

Join a multidisciplinary team to design mechanical housings, sealing concepts, and interfaces; perform analyses, prototypes, verification, and production-ready solutions while ensuring quality,

Qualifications

• Bachelor’s or Master’s degree in mechanical engineering, applied physics, precision engineering or related field.
• 2–5 years of experience in precision mechanical design, instrumentation, sensor systems, or product development.
• Experience with CAD (SolidWorks or equivalent) and engineering analysis tools such as Comsol or ANSYS.
• Understanding of materials, sealing, and mechanical design principles.
• Experience with Python or similar scripting tools for engineering analysis is an advantage.
• Interest in precision instrumentation, underwater sensing technologies, and multidisciplinary product development.
• Strong analytical and structured problem-solving skills.
• Good written and verbal communication skills in English.
• Eligible to obtain EU/NATO security clearance.

Responsibilities

• Contribute to the development and realization of the hydrophone sensor subsystem throughout the product development lifecycle.
• Translate product and subsystem requirements into robust engineering solutions.
• Develop hydrophone sensor assemblies, mechanical housings, internal structures, sealing concepts, and subsystem interfaces.
• Produce detailed mechanical designs, engineering drawings, specifications, calculations, and design documentation.
• Develop prototypes and support subsystem integration, testing, and verification activities.
• Perform engineering analysis, characterization, and validation of hydrophone sensor assemblies.
• Support acoustic characterization and correlate engineering models with experimental results.
• Analyze engineering results, identify technical issues, and implement design improvements.
• Apply engineering expertise in precision mechanical design, fiber‑optic sensing technology, materials, sealing, and structural design.
• Contribute to technical trade‑off studies, design reviews, and multidisciplinary engineering discussions.
• Support root cause investigations and implement corrective engineering solutions.
• Improve subsystem robustness, manufacturability, maintainability, reliability, and production readiness.
• Plan and execute assigned engineering activities within agreed priorities and timelines.
• Communicate technical progress, risks, and dependencies proactively with stakeholders.
• Collaborate effectively across multidisciplinary teams and share engineering knowledge and best practices.
• Ensure engineering deliverables meet quality, performance, and reliability requirements.
• Contribute to the continuous improvement of engineering processes, methods, and product quality.

Skills

Analytical thinking

Structured problem solving

English communication

Education

BSc or MSc in Mechanical Engineering or related field

Tools

SolidWorks

Comsol

ANSYS

Python

Job description

Optics11 is seeking a Mechanical Development Engineer (Hydrophone Sensor) to contribute to the development and realization of the hydrophone sensor subsystem throughout the product lifecycle. You will translate requirements into robust engineering solutions and advance underwater sensing technology.

Join a multidisciplinary team to design mechanical housings, sealing concepts, and interfaces; perform analyses, prototypes, verification, and production-ready solutions while ensuring quality,