Our main strengths


We are involved in blockchain technology through some projects since 2016.

Community oriented

We have long experience engaging with many communities in the following domains: blockchain, decentralized finance, metaverse, opensource world & legaltech.


Blockchain & metaverse development with Substrate, Ink!, Rust, Solidity, Blender, VoxEdit & Linux.

A team

We are a strong, experienced and multidisciplinary team in blockchain development and strategy (development, business and law fields).

Metaverse involvement

We are involved in three metaverse environments: Decentraland, Sandbox & Bit.Country

We want to contribute to a decentralized, transparent and open world!

We are present in the Sandbox metaverse. Bit.Country metaverse to come...

Ongoing projects

Mainly focused on Poladot - Kusama
logion network

logion network

Polkadot parachain

The Blockchain Infrastructure of Safe Digital Ownership - Substrate-based public blockchain operated by a decentralized network of legal officers.

Polkadot network

Polkadot network

The multichain vision for Web3

Polkadot unites and secures a growing ecosystem of specialized blockchains called parachains. Apps and services on Polkadot can securely communicate across chains, forming the basis for a truly interoperable decentralized web.



Parity's ink! to write smart contracts

With ink! you can write smart contracts in Rust for blockchains built on the Substrate framework.
ink! is the strongest way to write smart-contracts within Polkadot ecosystem.



Co-create Your Metaverse with Your Community

Bit.Country is the Platform for User-created Metaverses and Smart Contract Platform for Dapps & Games. We create metaverse environments for several projects.



Blockchain Conference and Workshop

3 days of conference and workshop sessions organized by some of the leading projects of the Polkadot and Kusama ecosystems.
Paris, France - Arab World Institute

Mail or form


Find us at the office

Techmedev sàrl

10, Giällewee, 9749 Clervaux, Luxembourg

Contact Us