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THEORIS is an industry-focused Professional Software Services company that provides cutting edge interactive 3D and embedded turnkey solutions.

Software Integrator for Innovative Solutions

THEORIS is an industry-focused Professional Software Services company that provides 3D and Embedded cutting-edge turnkey solutions. We pair the right technology with your needs to build next-generation products.


We turn complex problems into elegant and intuitive solutions within a proven track record of working to tight deadlines and delivering reliable systems thanks to our:

3D Solutions

We develop registration and calibration methods for various 6DoF tracking systems like ART. We extend rendering engines like Unity to display sizeable 3D models in real time. We design Natural User Interfaces (NUI) for disruptive devices like HoloLens. In a word, we align the 3D stars to make them work for you!

THEORIS provides Mixed, Augmented and Virtual Reality industry-focused turnkey solutions that cover the entire product life cycle. Our tailor-made and off-the-shelf MR/AR/VR applications combine leading-edge UX design and production-proven system architecture. Check out the specficications of the THEORIS' Mixed Reality products for HoloLens: OmniShare for Collaborative Work (Reviews) and OmniSupport for Maintenance (MRO Tasks).

Embedded Solutions

We contribute to co-design process thanks to our HW/SW integration expertise. We bring IoT devices and gateways to life thanks to MicroEJ, Linux, FreeRTOS or IoT EDGE platforms. We enable M2M communication thanks to protocols like OPC-UA. That is to say, our Software makes the most of your Hardware!

Working close to embedded hardware and OS providers, THEORIS designs, builds and integrates very effective Internet of Things solutions for Customers (Smart Devices) and Industries (Smart Factories) based on latest Chips and Board Support Packages.


From small to large business, they choose to trust us:

Join Us

THEORIS is about making ideas happen thanks to technology. We address innovative projects from day one to market success: that's why we look for people who like to be on the top of their game and take ownership of the project they are working on.

Click here to view all of the positions ›

In 2019, THEORIS proceeds with its development strategy and hires fifteen or so Software Development Engineers. Graduated from an engineering school or a computer science university with a first successful 2-8 years experience in software design and development/integration, you can now take part in innovative high-tech projects in the following fields:

  • AR / VR / 3D

    Several positions based in Paris in 3D technical application development in C++/C#/Unity3D requiring a perfect know-how in Object-Oriented technologies, and at least one experience in AR, VR or 3D environments.


    Several positions based in Paris in technical application development in multi-tasks environment in C/C++ requiring a perfect know-how in Object-Oriented technologies.


    Several positions based in Paris in Software development/integration in C/C++/Java (BSP, drivers, low layers and dedicated applications) under Embedded Linux, Windows CE & Mobile, Android NDK, FreeRTOS, microEJ, ...


    Several positions based in Paris in software development/integration in Digital TV or Internet of Things fields: Set Top Box or Gateways development/integration, IoT or Smart Metering development/integration.

→ Click here to apply (resume and covering letter)

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The terms ‘THEORIS’ or ‘us’ or ‘we’ refer to the owner of the website whose registered office is 103 RUE LA FAYETTE – 75010 PARIS, FRANCE. Our company registration number is 443 086 335 R.C.S. PARIS.

The term ‘you’ refers to the user or viewer of our website.

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