How to Write Upgradeable Smart Contracts with Truffle ^5.0 and ZeppelinOS ^2.0
Step-by-step tutorial to get up and running with upgradeable smart contracts
2
Paul Berg
Mentor
(1 reviews)
US$60.00
For every 15 mins
1
Sessions/Jobs
ABOUT ME
Blockchain Engineer
Blockchain Engineer
Versatile entrepreneur and software engineer turned blockchain researcher and smart contract developer.
As a freelancer, I'm keen on delivering quality projects. Got more than 40 satisfied customers. Currently focused on protocols and decentralised applications. What am I working with?
• Ethereum Solidity
• Go
• NodeJS
• React + React Native
• AWS
• Firebase
• ObjectiveC & Swift (iOS development)
• Java (Android SDK especially)
• PHP & SQL
English
London (+00:00)
Joined May 2017
EXPERTISE
4 years experience
I'm a professional and passionate iOS engineer, having developed many apps. Their level of complexity differs because I got involved in a...
I'm a professional and passionate iOS engineer, having developed many apps. Their level of complexity differs because I got involved in a lot of interesting projects, such as social networks (like Instagram), data searching websites (job index website, for instance indeed) or advertising utility products (like Facebook's Adverts).
3 years experience
The majority of the iOS apps I developed were connected to a MySQL-powered database developed also by me. I have tackled complex situatio...
The majority of the iOS apps I developed were connected to a MySQL-powered database developed also by me. I have tackled complex situations, such as mind-mapping all the tables required for a social graph to work, coding serious joins between relational tables in different databases or trying to optimize the queries, simultaneously keeping the codebase dry.
4 years experience
Android was the first mobile development course I've ever taken, so I have solid knowledge about it. I've developed a decent amount of ap...
Android was the first mobile development course I've ever taken, so I have solid knowledge about it. I've developed a decent amount of apps and I've had the chance to develop a couple of challenging tasks (like making a Facebook-like news feed or working with tab bars inside drawer items).
REVIEWS FROM CLIENTS
(1 reviews)
Daniel Ch
November 2017
Focused and professional mentor. Helped me with exactly what I needed and went the extra mile for some bonus optimization tips. Great guy - couldn't recommend him enough. Thank you again, Paul!
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