The short version

You’ll be the person who turns new ideas into physical parts—fast. In this role, you focus on 3D design, 3D printing, documentation and composite structures, creating lightweight components that are used directly on our airship platform.

This is a hands-on 3D specialist position for someone who enjoys rapid design–print–test cycles, understands how materials behave in the real world, and wants to see their work flying.

About Kelluu

We are turning the real world into a digital one, with accuracy down to the smallest detail. Imagine a near future where everything you see can be explored through data delivered by Kelluu, and where AI works continuously across that data to find what you need to know. Every building in every city, every tree in every forest, every power line in every electrical grid. Everything turned into answers.

Our technology is flight-proven and operational. We operate in both defence and civilian markets: the same technology that supports security also monitors critical infrastructure and the environment.

We’re a Finnish deep-tech company, headquartered in Joensuu with offices in Helsinki and Tampere. The team is growing fast, the goals are ambitious, and we’re hiring people who want to build something that matters.

Why this role exists

Our airship platform is evolving rapidly from prototypes towards scalable production, with increasing demand for consistent, lightweight, and manufacturable components.

This role exists to take ownership of how our parts are designed, built, and iterated—from fast prototyping to repeatable production. It’s about ensuring that what we design can be produced reliably, integrated seamlessly, and scaled without losing speed or quality.

What you’ll own

• Designing 3D‑printed parts such as brackets, mounts, and payload camera interfaces used directly on the airship

• Owning the full additive manufacturing workflow: design for printability, material selection, and running the prints (primarily plastics)

• Delivering fast design–print–test iterations as new needs emerge during airship development

• Creating and updating 3D designs for other mechanical parts, including structural and support components

• Maintaining and developing mechanical documentation, including CAD models, drawings, images, and work instructions

• Maintaining the airship’s full 3D master model as part of controlled technical documentation

• Designing composite parts and structures, with an understanding of carbon fibre behaviour and lightweight construction

• Designing moulds for in-house manufactured carbon fibre components

• Supporting hands-on production of laminated composite parts through practical, production-ready design

Your team

You’ll work closely with mechanical and electrical engineers, documentation and safety specialists, and people building and assembling the hardware. Design decisions are discussed where the parts are made and used—not just in CAD reviews.

What success looks like

By 3 months, you will have:

• Taken ownership of existing 3D-printed designs and documentation

• Designed and printed new parts already in operational use

• Become comfortable with our materials, printers, and development rhythm

By 6 months:

• Independently handling new design needs from concept to printed part

• Actively contributing to composite part and mould design

• Keeping 3D models and documentation clean, current, and usable

By 12 months:

• Fully owning additive manufacturing and composite-related 3D design

• Improving how we design for weight, strength, and manufacturability

• Being the go-to specialist for fast, practical 3D solutions

What we’re looking for

You’ll thrive here if you have:

• Strong 3D CAD skills (Inventor or similar)

• Hands-on experience with 3D printing and designing parts specifically for additive manufacturing

• Experience with carbon fibre or other composite materials

• Experience from creating and maintaining documentation

• Comfort working close to hardware, printing, assembly, and testing

Even better if you also bring:

• Experience designing moulds for composite parts

• Background in aviation, robotics, or other weight‑critical systems

What you get

The opportunity:

• Hands-on involvement in 3D design and printing

• Ownership of our documentation

• Possibility to work with our composite production

The practicalities:

• Salary range: €3,500–4,300/month, depending on experience

• Healthcare, Lunch benefit, Culture, sports, and wellbeing benefit (Epassi), Phone

• The tools you need to do your best work

• Flexible work culture — results matter more than desks

Other details

• Location: Joensuu

• Start date: As soon as possible

• Reports to: Head of Engineering

Due to the dual-use nature of our technology, appointment to this position is subject to security clearance and compliance with export control regulations.

The kind of place this is

Kelluu is a dual-use deep-tech company at the intersection of autonomy, AI, and aerial intelligence. We build technology that serves both national security and society, and we take that responsibility seriously.

We’re scaling fast, which means you’ll have real influence on how things are built. The flipside: things move quickly, priorities shift, and everyone wears a few hats. If you want a finished playbook and a clear lane, this probably isn’t the right fit. If you want to write the playbook yourself, it might be exactly right.

We use AI tools extensively, not as a gimmick, but because it lets a growing team move faster than anyone expects. We expect everyone to be curious about how to work smarter.

Due to the nature of our business in the defence and dual-use sectors, the selected candidate must successfully pass a standard security clearance conducted by the Finnish Security and Intelligence Service (Supo).

Interested?

Apply by 6.5.2026. Include your CV and application.

What to expect:

1. Initial call with our Head of Engineering or Recruitment Partner

2. Interview with our Head of Engineering + Recruitment Partner

3. Final interview / Meeting with your team

4. Reference check and offer

Questions? Reach out to Niko Kuikka, Head of Engineering (+358 50 408 4557) or Tina Wirzenius, Recruitment Partner (+358 50 465 7404). If we miss your call, please send us a text message.