Jakob Wei
Senior Blockchain Developer
Email
-
Address
Alexander Street of Toronto, Ontario, Canada
About Me
I am a skillful, talented and trustworthy senior Blockchain developer with 3+ years of experience. My full stack expertise with 7+ years of
experience in React, Angular, Vue, Node, Django, and Laravel would be an additional plus to your team who is working for a decentralized
solution. The best thing in me is "Always putting myself in clients' shoes" and “High quality and the best service”. As a software engineer, I know
how to turn your ideas into real-life applications to solve your customers' challenges. I always try my best to design and develop quality software
that provide values to your target market, develop a relationship with your consumers by focusing on user experience. I breathe code and keep
myself updated with latest IT tools, and technologies.
Skills
Smart Contract
Truffle
React JS
Node JS
Solidity
Hardhat
Vue JS
MongoDB
Ether.js
Metamask
Angular JS
SQL
Web3.js
Ethereum-compatible Chains
Laravel
Infura
Solana
Django
Experiences
Lead Blockchain Engineer
Polkally NFT Trading Marketplace Jan,2021 - Present (full time)
- Implemented ERC-721 and ERC-1155 standards for NFT.
- Implemented NFT acution and storage contracts.
- Implemented bridge contracts for cross-chain token transfer.
Technologies:
Solidty, Smart Contract, Hardhat, IPFS
Contract, Smart Contract Developer
Zipmex Exchange Feb,2020 - Sep,2020 (full time)
- Implemented group transactions in a batch to save user gas & cos.
- Built proxy contract.
- Implemented router , master/slave contract.
- Implemented PoS bridge for cross layer token transfer and sharing data.
- Implemented security measurement.
Technologies:
Defi, Smart Contract, Solidity, PoS Bridge, Layer2
Frontend Web Developer
Profico Apr,2019 - Dec,2019 (full time)
- Created a photo and video contest web app for a US startup, users could upload photos and videos and could participate in
contests where the best upload would get prizes. The app was made with scalability in mind..
- Contributed as part of the team that developed a new webshop app for a large retailer in Croatia..
- Made a tablet app with a custom CMS back end for the Croatian branch of Allianz, the insurance company. We migrated all
the insurance sales documents to a digitalized format that they could keep up-to-date via the CMS..
- Created a number of responsive web apps and pages.(service pages).
Technologies:
Single-page Applications (SPA), Gulp.js, Grunt, ECMAScript (ES6), Webpack, Responsive Design, Front-end
Development, Babel, React, REST APIs, Express.js, Sass, Node.js, MySQL, PHP, CSS, HTML, JavaScript
Blockchain Engineer
Grayblock Jun,2018 - Feb,2019 (full time)
- Helped to design and build a POC platform leveraging blockchain to improve electricity generation finance..
Technologies:
DApps, Web 3.0, Solidity, Ethereum
Full-Stack Web Engineer
Scoutible Feb, 2016 - Mar, 2018 (full time)
- Worked on building game-based platform to assess a candidate's soft skills and increase the odds of a successful hire.
- Improved outdated APIs written in Python.
- Improved Python codebase design by adding reusable base classes based on design pattern.
- Improved code design using React.js and Redux-saga standard practice.
- Managed deployment process using GAE.
- Improved storing app state info in local storage to use redux store
Technologies:
Google Cloud Datastore, Google App Engine, Redux-saga, Redux, React, JavaScript, Python
Junior Front-end Developer
MCH Group Nov,2014 - Aug,2015 (part time)
- Built a single-page application focusing on managing data and customers, that is tailored for art shows.
- Redesigned architecture of the app.
- Refactored multiple components to be more DRY (don't repeat yourself) i.e., be more readable, clean, and work as
automatically as possible).
- Created multiple components that became the core of the application e.g., custom inputs, a form builder. a complex tabular
data viewer, and more.
Technologies:
PyroCMS, Laravel, PHP, Drupal
Education
Bachelor's degree in computer science from Nanjing University of
Science and Technology, 2011 – 2014
Languages
Chinese ( Native language )
English
★★★★★
★★★★☆
Hobbies
Football
Tennis
★★★★★
★★★★☆
