Pieter Wuille is a Belgian core-tech engineer and founder of Blockstream recongnized up for his improvements to Bitcoin like BIP 66, libsecp256k1, and Segregated Witness. [2]With over 1,000 code contribution s to the Bitcoin core Software, Wuille has been called the "Chuck Norris of Bitcoin" by his peers.

He was Born and raised in Belgium, he grew up in the town of Leuven where he attended the schools, Salco and Vrije Basisschool Boven-Lo. ^[1] When he was 7-years-old, his father showed him how to program for the first time.

After finishing high school, he attended KU Leuven where he studied computer science.

After finishing his PHD research at KU Leuven, he worked in Switzerland as an engineer for Google. In 2010, during his time working there, Wuille discovered Bitcoin on a developer chat channel dedicated to the programming language Haskell.

In May 2011, he pushed his first major contribution that allowed for the first time users to take their keys out of the Bitcoin Core client which would later give users the power to switch between wallet providers.

In February 2012, Wuille created Bitcoin Improvement Proposal (BIP) 32 which created seed phrases for private keys, making storing and recovering them easier but still secure.

In February 2011, Wuille took it upon himself to improve the cryptography for generating the keys needed for sending and receiving bitcoin as a hobby project. Two years later in 2013, he introduced libsecp256k1, an important library of code underpinning Bitcoin that uses a different mathematical elliptic curve algorithm. The proposal attracted a crew of notable contributors, including developer Peter Dettman, mathematician Andrew Poelstra, and long-time Bitcoin Core contributor Greg Maxwell. The code was finally implemented in Bitcoin Core version 12 in February 2016.

In December 2015, Wuille introduced Segregated Witness (SegWit), a code that changed the way data is stored in Bitcoin blocks.

SegWit was introduced to the Bitcoin Blockchain in August 2017.