Product design for the next layer of technology

Karda is a one-person product design studio for deep-tech founders. I design the product layer that turns complex systems into products users understand and pay for.

  • Robotics
  • Defense
  • New Space
  • Biotech
  • Energy
  • AI
  • Quantum
  • Health
  • Research
  • Climate
  • Fintech
  • Neurotech
  • Transportation
  • Cybersecurity
  • Industry
  • Robotics
  • Defense
  • New Space
  • Biotech
  • Energy
  • AI
  • Quantum
  • Health
  • Research
  • Climate
  • Fintech
  • Neurotech
  • Transportation
  • Cybersecurity
  • Industry
  • Robotics
  • Defense
  • New Space
  • Biotech
  • Energy
  • AI
  • Quantum
  • Health
  • Research
  • Climate
  • Fintech
  • Neurotech
  • Transportation
  • Cybersecurity
  • Industry

Manifesto

Technology, designed with intent, is the most powerful lever we have. But most of what gets built today is shaped by speed, hype, and short-term incentives.

The world needs fewer products, designed better. Products that respect the people operating them and the systems they run on.

Karda exists for this: a one-person studio, working at the edge of deep tech, close to founders building real things.

/TLB

Founder @ Karda

Work

Recent deep-tech product design work, across new space, robotics, telecom and AI. Case studies coming as projects ship.

Opus Aerospace website shown on a display above a camera slider rig.
Orange Livebox parental controls on Android — the household device list beside the scheduled-disconnection settings.
Nanoguild brand banner — the wordmark set among a cut-out robotic arm, a 3D-printer head and an experimental aircraft.
Omnissia learning interface, a pale home screen with an Ask Omni prompt over a blurred trending grid.
Opus Aerospace site on a mounted tablet — the Mesange launch demonstrator page with its propulsion and launch-site specifications.

Services

Product design services for deep-tech founders, end to end: research, strategy, interface design, and the working build at the end of it.

Craft

  • Product Design

    Interfaces and systems built to hold up under real use.

  • User Research

    Interviews and tests that turn assumptions into evidence.

  • Product Strategy

    Positioning and the few moves that actually compound.

  • Prototyping

    Functional prototypes built fast. A working proof beats any deck.

Outputs

  • Websites
  • Web & mobile apps
  • Dashboards & internal tools
  • Functional prototypes
  • MVP builds
  • Pitch decks

Seven years shipping product in telecom, energy, entertainment. Interfaces used by millions of people. Now at work on yours.

Pricing

2 to 3 days

Audit & Redesign

What you get
  • Audit of your product / prototype / idea
  • A first clean redesign
  • The sharpest moves to make next
Best for

Founders with a vibe-coded first version who need a sharp outside read before scaling it.

Starting at2500€
2 weeks

Product Design Sprint

What you get
  • 2 weeks, one focus
  • Your vision and constraints
  • A working prototype
Best for

Founders with a clear vision who want to see it real, fast.

Starting at9500€
Ongoing

Embedded Design

What you get
  • Continuous product work
  • Research, design, and build
  • Embedded with your team
Best for

Funded teams shipping something complex over the long haul.

Custom

Your questions

Thomas Le Borgne, founder of Karda

TLB

Founder @ Karda

tlb.computer

Not sure where to start? Tell me what you're building.

Prefer email?

  • Me, from the first call to the last file. Karda is a one-person studio: seven years of product design across telecom, energy and entertainment, on interfaces used by millions of people. No account manager in the middle, and no junior taking over once the contract is signed.

  • It starts with a 30-minute intro call. We talk through what you're building, where you are, and what you need. From there I scope the smallest engagement that moves you forward: an audit, a sprint, or embedded work.

  • A focused sprint typically runs one to two weeks from kickoff to a working result. Larger builds are broken into sprints so you see shippable progress every week rather than waiting on one big reveal.

  • Web and mobile apps, landing pages, MVPs, hardware prototypes, UX audits, and investor decks. If it's a product problem, from first concept to shipped build, it's likely in scope. If it isn't, I'll tell you on the call.

  • As much or as little as you like. Most founders want a weekly check-in and async updates in between. I work autonomously once the direction is set, and flag decisions that need you rather than blocking on them.

  • Fixed-scope engagements are priced per package so you know the cost up front, with no hourly surprises. Ongoing embedded work is a monthly rate. We settle on the right shape during the intro call.