Mechanical Engineer - MedTech Start up

CT19; Paris; On-site; EUR 90,000 - 130,000; Full time

Job summary

CT19 is seeking a founding Mechanical Engineer in Paris to own the blood-collection device and its disposable components. You will design, prototype, and test a complex medical device from concept through to robust, manufacturable solutions.

You will tackle tolerances, materials, sealing, actuation, and fluid handling, and work with suppliers and manufacturing partners to move designs into production while taking ownership of technical outcomes in a fast-paced startup environment.

Qualifications

• Hands-on mechanical engineer to own the blood-collection device and its disposables.
• Experience with complex physical systems and multidisciplinary engineering problems preferred.

Responsibilities

• Design mechanisms and components from first principles.
• Build and test prototypes for a medical device.
• Address tolerances, materials, sealing, actuation, and fluid handling challenges.
• Design test rigs and characterize system performance.
• Investigate failures and translate findings into design improvements.
• Collaborate with suppliers and manufacturing partners.
• Advance designs from rough prototypes to a manufacturable medical product.
• Take ownership of technical outcomes and challenge assumptions.

Skills

Mechanical design

Prototyping

Testing

Tolerance analysis

Fluid handling

Actuation

Materials selection

Design for manufacturability

Systems thinking

Supplier collaboration

Tools

CAD (SolidWorks)

Prototype testing tools

Job description

Founding Mechanical Engineer — Medical Device Start Up

Paris, France | Full-time | On-site

We are a venture-backed medtech company developing a minimally invasavice, at-home blood-monitoring platform.

This novel, automated system is designed to collect and analyze blood microsamples at home, monitoring various biomarkers for hig-risk patients that allow clinicians to understand patient dynamics, adjust treatments and respond quicker when interventions are needed.

The role

We are looking for a hands-on mechanical engineer to take ownership of a core part of our product: the blood-collection device and its disposable components.

You will work directly on the architecture, design, prototyping, and testing of a complex medical device, taking ideas from early concepts through to robust, manufacturable solutions.

This includes:

• Designing mechanisms and components from first principles
• Building and testing prototypes
• Solving challenges involving tolerances, materials, sealing, actuation, and fluid handling
• Designing test rigs and characterizing system performance
• Investigate failures and translate findings into design improvements
• Work closely with suppliers and manufacturing partners
• Move designs from rough prototypes toward a reliable medical product
• Challenge assumptions and take ownership of technical outcomes

Who we are looking for

We care more about what you can build than where you studied or which credentials you hold.

You may be a strong fit if you have built complex physical systems and are energized by difficult, multidisciplinary engineering problems.

We value:

• A strong bias toward building, testing, and learning quickly
• High agency and genuine ownership
• Exceptionally high standards for product quality
• An obsession with understanding why systems work or fail
• A willingness to challenge conventional solutions
• Comfort working in the ambiguity and intensity of an early-stage company
• The conviction that an idea is only impossible once it has been rigorously tested

Experience with medical devices, microfluidics, precision mechanisms, disposables, or regulated product development is valuable, but not essential.