WHO ARE WE

InSpek develops optical microchip sensors capable of measuring multiple molecules, temperature, acidity, oxygenation, and more — directly at the heart of biochemical reactions. Our technology enables smarter production of medicines, food, and energy while minimizing waste. We are a VC-backed, ambitious team pushing the boundaries of what sensors can achieve.

If you thrive in a dynamic, innovative environment and want to shape the future of sensing technology, InSpek is the place for you!

WHAT WILL YOU BE DOING

We are seeking an R&D Mechanical Engineer to develop the mechanical part of InSpek’s sensing systems. You will work on the design, prototyping, and manufacturing of optical assemblies involving our chip-scale sensors, OEM components, and custom-made parts. Your work will ensure the mechanical and manufacturing readiness of components, from R&D tools to production-grade assemblies. Your role will be hands-on and collaborative, working closely with internal teams and external partners to debug, prototype, and manufacture next-generation sensing solutions. You will report to the Industrialisation lead.

RESPONSABILITIES

Mechanical design & prototyping:

• Design and iterate mechanical components and assemblies that meet cleanliness, sterility, and durability standards for bioproduction environments.
• Build and iterate prototypes using 3D printing, CNC machining, and other rapid prototyping methods.
• Conduct tests to validate performance and durability in real-world bioproduction conditions.
• Collaborate with internal teams and external partners to debug and refine mechanical designs.
• Optimize designs for cost, scalability, ease of assembly, and compliance with biotech requirements.

Contract manufacturing & Supplier coordination:

• Identify, qualify, and onboard subcontractors and engineering houses for specialized mechanical tasks.
• Work with CMOs, contractors, and industrialization partners to ensure mechanical components meet technical and quality standards.
• Contribute to procurement, timeline management, and technical documentation.
• Ensure smooth transitions from prototyping to volume production.

Quality & Compliance:

• Perform mechanical testing and validation to ensure components meet performance and regulatory requirements.
• Support quality control processes, with an emphasis on compatibility with bioproduction and pharmaceutical standards.

COMPETENCIES / PROFIL

You are a hands-on engineer with experience in mechanical design and manufacturing processes. You can manage suppliers, solve technical challenges quickly, and contribute to robust sensor development.

• 4+ years of experience (or equivalent) in mechanical engineering or industrial design, industrialization
• Strong background in mechanics, system design, and integration, including proficiency with CAD tools and mechanical prototyping (e.g. 3D printing)
• Hands-on experience with mechanical component selection, testing, and validation.
• Familiarity with hazardous environments such as bioproduction (preferred), space, and sub-sea.
• Experience with cleanroom, sterilization, material compatibility and radiation.
• Experience with supplier follow-up and project management
• Excellent communication and project management skills
• Ability to manage multiple stakeholders and prioritize tasks in a fast-paced environment
• Fluency in English; French is a plus
• Nice-to-have:
  • Knowledge of optoelectronic packaging or microfabrication
  • Familiarity with ISO standards

BENEFITS

💼 Health and life insurance (100%)

🍽️ Meal vouchers

🏃🏼 Gymlib account (access to gyms & sports)

📈 Employee stock options (BSPCE)

🏡 Flexible remote work policy

💥 Growth opportunities with potential for leadership roles

🎉 Regular social events

🌟 Inclusive culture

🚀 Unique opportunity to be an early employee at an innovative startup

InSpek’s offices & laboratories are located at DocCity Suresnes, in the western Paris region.

We welcome candidates from all backgrounds and experiences to apply, even if you don’t tick all the requirements.