8th July 2025
08:00 AM EDT
The Web3 Engineer Graduate School
Where Blockchain Engineers
at Top Companies Study
at Top Companies Study
Top engineers come to RareSkills to cover their knowledge gaps
Explore Our Bootcamps
UPCOMING 2025 COURSES
Engineers at top Web3 companies have
studied at RareSkills
Education is not just for beginners
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.
Small Classes, Big Impact
We limit our classes to a maximum of 5 students, ensuring that each learner gets personalized attention and optimal learning conditions.
One-on-One Mentorship
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.
Advanced & Rigorous Curriculum
Our curriculum offers over 46 weeks of Ethereum development training. It's up-to-date, advanced, and structured, providing the most comprehensive course in Solidity.
We write the tutorials
the experts read
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.
Zero Knowledge Proofs Book
The most programmer friendly guide to building ZK-SNARKs from scratch
Uniswap V2 Book
A deep dive into the source code, tokenomics, and math behind the most copied DeFi Protocol.
Book of Gas Optimization
The web’s most authoritative and complete guide to Solidity Gas Optimization.
Tornado Cash Book
The most comprehensive line-by-line guide to the iconic mixer - with animations
60 Days of Solana
The Solana course is designed for engineers with a beginner or intermediate background.
Smart Contract Security
A 2023 survey of how smart contracts break - over 12,000 words long
'RareSkills Riddles'
Capture the flag security exercises that even top security auditors struggle with
Yul Puzzles
Learn Solidity assembly by solving 80 problems of increasing difficulty. Hints and resources included.
The School that is Cool
Ready to move beyond our free resources?
Join our online cohorts and you’ll be in good company.
The following kinds of students have joined RareSkills:
- Protocol leads of highly funded startup
- Senior engineers at prestigious blockchain companines
- EIP authors
- Technical Web3 founders who have collectively raised tens of millions of dollars
Successful people love learning — that’s why they come to RareSkills Community
Vectorized.eth
Protocol Lead
Rahul Saxena
Senior Blockchain Developer
Bernhard Mueller
Smart Contract Auditor
Zigtur
Web3 Security Auditor
Adam Boudjemaa
Blockchain Technical Lead
Vladimir Trifonov
Blockchain Engineer
Tom Harper
Smart Contract Engineer
Amal Sudama
Blockchain Tools Developer
Suthan Somadeva
Blockchain Engineer
Adeel Hasan
Blockchain Engineer
Taras Shchybovyk
Blockchain Engineer
Sergey Tsvetkov
Solidity Developer
Eduard Pershyn
Blockchain Engineer
Carlos Calderon
Blockchain Engineer
Jordan Mcckiney
Blockchain Engineer
Iryna Hubernska
Blockchain Engineer
Patrick Zimmerer
Blockchain Engineer
Emil Guseynov
Blockchain Engineer
Fouad Hannoun
Blockchain Engineer
Himad Moutar
Blockchain Engineer
Chloe
Blockchain Engineer
Cyan Pascual
Solidity Developer
Josh Robar
Blockchain Engineer
Ready to Learn with Our
Legendary Instructors ?
Jeffrey Scholz
Founder | Lead Instructor
Jeffrey Scholz, founder of RareSkills, was Yahoo’s youngest senior engineering manager, building its video machine learning team and earning two AI patents. His work at RareSkills has helped 100s of engineers land roles at top blockchain companies, and the author of the popular The RareSkills Book of ZK. He holds a Masters degree in computational theory from Columbia University.
gmhacker
Head of Security
Goncalo Magalhäes (gmhacker) is an aerospace engineer working as a smart contract security researcher. He's now the Head of Security at Immunefi.
Shung
Instructor | Associate Security Researcher
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.
Zigtur
Security Researcher
Madigan (Zigtur) is ranked #1 on the all time earnings leaderboard (with over 622k 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.
João Paulo Morais
Technical writer | Instructor
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.
Daniel Cumming
Verification Engineer
Daniel Cumming is a researcher at Runtime Verification Inc., where he has audited smart contracts and Rust-based blockchain infrastructure. He is currently working on the KMIR project, which encodes Rust’s stable MIR semantics in the K Framework. Prior to this, he studied at The University of Queensland and assisted in teaching and research on formal methods, computer systems, and algorithms.
Philogy
Instructor | Security Researcher
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).
The biggest players in the ecosystem support our work
We have received grants from
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Rated the Best
Success Stories from Our Alumni
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.
"It's like well structured it covers all necessary topics."
Not my first attempt to dig into ZK thing but with RareSkills. It was my first successful attempt. The rest of the things like old materials that they have on YouTube have marks and signs. Of course they didn't provide me more programmers experience, I'd say. So it was more like math related rather than programming related. In RareSkills. It's both sides. You have no math to the programming, which is great, because I am a programmer, I'm a software engineer for many years. Definitely can recommend to do all homework as fast as you can. Otherwise it's way too hard to catch up with the course. Although it's like well structured it covers all necessary topics. So for me it was great. asd
Evgenii Danilenko
Core Developer
"I joined the RareSkills Zero Knowledge Bootcamp to delve deeper into cryptography, specifically to use zero-knowledge proofs to verify computation."
Overall, my experience with RareSkills was really great. I thought the material was paced very well. I really enjoyed that we had the pre-course material to ensure everyone was on the same page when they started. I found Jeff to be a knowledgeable teacher and always willing to answer students' questions, including my own. I also really liked the opportunities to help each other out via the Slack channel. The entire Slack experience was really nice as well.
So, yeah, I would definitely recommend it to anyone. Honestly, it exceeded my expectations. I felt there would be a lot less live content and opportunity for interactive learning than there was, so I was pleasantly surprised by that.
RareSkills Bootcamp impacted my career in two main ways. First and foremost, during my day job, it makes me a lot more confident in discussing these types of topics. There are a number of ZKP use cases, especially in Layer 2 networks in Ethereum. So, working in web3 infrastructure, it’s definitely valuable in every regard.
And then, the second piece of that is that it’s helped me explore other cryptography topics, get deeper on zero-knowledge proofs, and even things outside of that, by enhancing my ability to read academic papers and things like that. This hopefully will eventually culminate in me founding my own company, as this was actually partly another impetus for me joining this, as I’m looking at applications of cryptography to certain other industries.
To someone considering joining it, I would say just go for it. Zero-knowledge proofs are such a nascent thing that it’s going to be really hard to cobble together your own learnings from blog posts and things like that. I mean, even the excellent ones provided in RareSkills' ZKP book, it’s going to be really helpful for you to have Jeff walk you through it, to be able to talk to your classmates. It just helps it stick and it really helps give you the confidence in your experience, whereas doing it yourself maybe you have some doubts, no one else has looked at your work, that type of thing. It’s definitely a good way to learn with confidence.
Josh Quintel
Lead Product Manager, Infura MetaRPC
"5 months ago i decided to specialize in web3. To do it i joined the Rareskills solidity bootcamp."
Learning at RareSkills was an awesome experience. Jeffrey is the instructor I learned from, has a really deep knowledge of web3 technologies like solidity or zero knowledge proofs. One-on-one reviews with him were really helpful. More-over i’ve met amazing classmates, they always did their best to help me and were really kind.
Next week i will start my new job as a web3 security auditor. Learning solidity and solidity security at RareSkills helped me to obtain this work for sure.
Zigtur
Web3 Security Auditor
"It's awesome to know how things work under the hood and Rareskills helped me achieve that."
I joined a web3 company about a year ago and had to write some Solidity contracts as part of the job. I quickly realised how important it is to really understand how the EVM and Solidity works if you wanted to deploy real production grade contracts for users. I wanted a structured learning program which went really deep into the weeds and found Rareskills!
The course really exceeded my expectations. Each module pointed you to great resources you should learn from + had difficult assignment questions you could only solve if you understood the resources really well. Each week also had a call with the instructor and all the others in your class which was super fun. I really enjoyed discussing what I learnt and clarifying my questions with all the other students. The weekly 1-1 calls with the instructor was great too! Your code gets properly reviewed.
It's awesome to know how things work under the hood and Rareskills helped me achieve that. I can notice security issues, understand audit reports, write and debug yul, think of gas optimisation and a lot more quite easily. The confidence of knowing things a lot deeper like this is quite nice.
Be prepared to put in a significant amount of work and time into the course though. The modules are not easy. But thats what makes it fun!
Harikrishnan Shaji
Blockchain Developer
"I would highly recommend this course for any one who wants to foray in to the domain of zero knowledge"
Hi I joined ZK bootcamp and was really insightful to clear out various key concepts associated with zero knowledge at a fundamental level and i would highly recommend this course for any one who wants to foray in to the domain of zero knowledge.
Overall learning was pin pointed. In classroom learning was to focused and jeff would come back to core points if we did mistakes. On Community note its simply vibrant
It helped me understand zk and zk associated cryptography in depth. It surely sharpened my skills in domains and help me understand zk related security issues also in depth. Yes its a must for those entering zk
Harsh Patel
Head of Security
"Rareskills Bootcamp taught me the skills to implement a crypto research paper in Python. For me, that was the most exciting part and the real nugget that I came away with. "
Hey, I’m Sam. I just finished the RareSkills ZK Bootcamp, and it's not only about a Groth16 proof system from start to finish, but it really taught me the skills and a bit of experience to implement a crypto research paper in Python. For me, that was the most exciting part, and the real nugget that I came away with. The cohorts as well, such a high caliber, the people, their experience, and just the motivation behind everyone in the course, brings me up higher and I think everyone else up as well. It’s very exciting, and I can’t recommend it enough. Thanks!
Sam Polgar
Cryptography Researcher & Engineer
"Overall, I would highly recommend this program to anyone looking to take their skills to the next level."
I recently completed the Advanced Solidity program, and I wanted to share my thoughts on the program with you. To begin with, I must say that I was thoroughly impressed with the program. Despite having five years of experience in Blockchain, I learned a great deal from it. The program covered a range of topics, including EVM bytecode, security, testing, mutation, assembly, and optimization, to name a few. What I particularly loved about the program was its emphasis on real-world applications. We identified and addressed security issues that could potentially occur in smart contracts, making the program all the more practical and relevant. Overall, I would highly recommend this program to anyone looking to take their skills to the next level. The team behind it is incredibly knowledgeable, and they have a great way of making learning fun and engaging. Thank you for equipping me with the necessary skills, and I look forward to applying what I've learned in my future endeavors.
Adam Boudjemaa
Blockchain Technical Lead
"I joined the bootcamp because i wanted to extend my Solidity knowledge and I couldn’t find a suitable advanced content elsewhere."
I have joined the web3 a couple of years ago. I joined the bootcamp because I wanted to extend my Solidity knowledge and I couldn’t find a suitable advanced content elsewhere.
My learning experience was great and I think that the materials exceeded my expectations. Because I learnt a lot about solidity which I didn’t know it exists. I prefer the content like this, like in notion, not just some videos to watch over and over again. The sessions with my mentor also , he was very skilled and he helped me a lot.
It was a positive impact. I already used the knowledge from the Solidity bootcamp, I even will participate in the ZK Bootcamp next. So those advanced solidity knowledge were very very helpful. I find the course page, I read it and I like realized that that’s what I need exactly in that moment of my career.
Vladimir Trifonov
Blockchain Developer
Opportunities
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Rust Developer
We are seeking a talented Rust Developer to build a robust, scalable blockchain indexers and analytic backend.