Whether you are looking for free resources or access to top instructors, RareSkills is here to help. Unlike other education platforms aimed at helping engineers enter blockchain, we enable engineers already in the ecosystem to excel.
We limit our classes to a maximum of 5 students, ensuring that each learner gets personalized attention and optimal learning conditions.
We offer one-on-one mentorship and code reviews to quickly address questions and highlight potential mistakes, ensuring that you're on the right track.
Read and judge for yourself. We are the industry leader for comprehensive and expert-level learning resources — and we don’t even ask for your email.
The most programmer friendly guide to building ZK-SNARKs from scratch
A deep dive into the source code, tokenomics, and math behind the most copied DeFi Protocol.
The web’s most authoritative and complete guide to Solidity Gas Optimization.
The most comprehensive line-by-line guide to the iconic mixer - with animations
The Solana course is designed for engineers with a beginner or intermediate background.
A 2023 survey of how smart contracts break - over 12,000 words long
Capture the flag security exercises that even top security auditors struggle with
Ready to move beyond our free resources?
Join our online cohorts and you’ll be in good company.
Jeffrey is the instructor of the only two expert-level Ethereum development courses on Udemy, both of which are bestsellers. His blog on Ethereum development has significantly influenced major projects in the web3 space.
Goncalo Magalhäes (gmhacker) is an aerospace engineer working as a smart contract security researcher. He's now the Head of Security at Immunefi.
Shung is a Smart Contract Auditor at Kebasec and an Associate Security Researcher at Spearbit, renowned for his expertise in blockchain security. He has previous experience as a protocol developer at Pangolin.
Jesper Kristensen is a Web3 builder and entrepreneur with a Ph.D. and MS. in Applied and Engineering Physics and Computer Science from Cornell University. Founder of the Panoptic protocol.
Madigan (Zigtur) is ranked #2 on the all time earnings leaderboard (with over 165k earned) at Cantina, a competitive smart contract auditing platform by Spearbit. Previously, he was a smart contract auditor and web2 security engineer at Quarkslab. He is an alumni of RareSkills.
Philippe Dumonet is an experienced smart contract developer and auditor with over three years of experience. He has worked for various companies and decentralized autonomous organizations (DAOs).
João Paulo Morais, a PhD in physics with 30+ academic publications, began programming in Pascal and Clipper. In 2021, he pivoted to Web3, blockchain, and cryptography, focusing on Ethereum and zero-knowledge proofs. He teaches a Solidity course on Udemy (in Portuguese) and has authored advanced articles on Solidity for RareSkills.
Our famous solidity test is used by security firms to filter out applicants. Want to see where you stand?
if you are looking to train your engineers and obtain a bulk discount, expand your team, or do some other kind of collaboration.
Our students, from Web3 technical founders to lead solidity developers, have seen tremendous success after completing our bootcamps. With over 8 figures of funding collectively raised by our alumni for their technical web3 startups, their achievements stand testament to the quality of our programs.