Helping you build for every uncertainty.

An R&D team of embedded experts


Specialized in designing ultra-small circuits for wearables and IoT, our team can help you with all of your HDI, RF, and high-speed layout.

We can assemble and test prototypes in house, as well as verify RF circuits and tune antennas.

With great access to top certification partners, we can advise on EMC testing, and help to ensure you meet regulations for global market access.


Our multidisciplinary team can help you build code for major ARM, and RISC-V chipsets. We can also help with application development targeted to embedded Linux and RTOS based systems.

See our codebase on Github

Pen Testing

Don't leave it to chance. We can check for a magnitude of vulnerabilities using the same tools as bad actors. We can also test for more sophisticated side-channel attacks such as power or timing analysis.

Realtime systems, built in real time

We employ state of the art workflows to develop algorithms in a matter of days rather than months.

Using Model Based Design, we can quickly solve complex problems in Sensor Fusion, and Deep Machine Learning. Deployed code can also be configured to strict industry standards such as MISRA if required.

Why Use Model Based Design?

About Us

Silicon Witchery was founded in 2019 by Raj Nakarja, an ex-wireless engineer of Silicon Labs Inc. and Bristol Robotics Lab. After many years of developing devices for Wearable and IoT customers, he started Silicon Witchery with a vision to help embedded designers integrate advanced devices and software into their products.

Today, the Silicon Witchery team works with customers worldwide and develops module-based products for accelerating wearable and IoT products to market.


Headquartered in central Stockholm, Sweden.

Silicon Witchery AB,
Alma Nybrogatan 8,
114 34 Stockholm,

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