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Daniel L.
🇸🇬Singapore (UTC+08:00)
Created AtUpstaffer since October, 2022

Daniel L. — Full Stack & Blockchain Engineer

Expertise in Full Stack Web.

Last verified on November, 2023

Core Skills

Bio Summary

- Accomplished Full Stack Developer with 6 years of hands-on experience in delivering top-notch decentralized applications and troubleshooting for many startups and firms.
- Focused on creating collaborative efforts between support and engineering teams to implement system or product level changes to benefit end-users.
- Eager to support building an impeccable online reputation by providing high-level customer support for startups and firms.
- Upper-Intermediate English.
- Available: ASAP

Technical Skills

Programming LanguagesGo, Python, Rust, Solidity
JavaScript FrameworksNode.js, React, Vue.js
Cloud Platforms, Services & ComputingAWS
Amazon Web ServicesAWS EC2
BlockChain and Decentralized SoftwareBitcoin Diamond, Celo, CronaSwap, Cronos Chain, ERC-1155, ERC-20, ETH (Ethereum blockchain), GameFi, Hyperledger, NFT, NFT marketplace, Polygon, Web3, Yield Farming, Zapper Protocol
SDK / API and IntegrationsGraphQL, RESTful API

Experience

Web3 and Backend Developer at NFTApparel

Jun 2022 — Present 
https://market.nftapparel.com.au/
http://nftapparel.com.au/
Responsibilities:

  • Create Initial Project of NFT Marketplace working on Andromeda Chain - Frontend in Vue.js and Backend in Golang
  • Setup Golang RESTful API server and Graphql Server on AWS EC2 Instance
  • Developed NFT Marketplace Smart Contract in Solidity from scratch
  • Implemented Royalty Logic to Poseidon and Peaking Ducks NFT Smart Contract
  • Developed NFT Marketplace Backend in Go-ethereum
  • Integrated ERC-1155 and Polygon Chain Support

Web3 & Solidity Developer at CronaSwap

Feb 2022 — May 2022
https://app.cronaswap.org
Responsibilities:

  • Implemented Zapper Protocol in CronaSwap, the first Zapper Protocol Implementation in Cronos Chain
  • Developed Zap In UI using React Next.js
  • Developed Cronaswap GameFi Smart Contract using Solidity and Backend Server in Golang.
  • Add Sign & Verify using EIP 712 and implemented in Backend Server using Go-ethereum.
  • Query Data from GameFi Smart contract using Subgraph and Apollo Graphql Client in React

Full Stack & Blockchain Developer(Freelance)

Jul 2019 — Aug 2021
https://monaconft.io/
Responsibilities:

  • Built and launched Smart Contracts for Genesis NFT, Pode and Marketplace as well.
  • Also built Staking Rewards contract, so investors earn MONA tokens by staking NFTs and LP tokens.
  • Worked on a BlockChain app that utilizes the Ethereum BlockChain for the creation of a supply chain management system interface using React.js
  • Implemented NFT fractionalization so that users are able to co-won NFT and decide further steps like sale, auction, airdrop together.
  • Implement basic functionalities of NFT Marketplace such as sale, auction, airdrop and used proxy for service fee calculation.
  • Built web pages for customers using React.js, React native and Redux for responsive and highly-reusable UX/UI system.

Blockchain Developer at Bitcoin Diamond

Nov 2018 — Jul 2019
https://tahu.digital
Responsibilities:

  • Developed and launched ERC-20 token TAHU and implemented Yield Farming. TAHU team had been joined to moved forward to launch NFT (ERC-1155 Dark Matter Ltd).
  • Configured and completed end-to-end setup of python project Hyper ledger Cello, A "Blockchain as a service" in Amazon AWS using Ubuntu instances.
  • Increased user experience scores by 28% for Bitcoin Diamond, Inc.
  • Prototype d an average of 25 new product feature s per year.
  • Drove best practice implementation for 14 employees across multiple department s. Decreased rework by 23% and cost s by 12%.

Full Stack Developer at TenX

Jun 2016 — Feb 2018
• Developed successful Real Estimate Apps such as sell/buy home exchange platforms and other commercial applications.
• Had Developed several profitable applications based on AI/ML techs to help
B2C(Business-to-consumer) marketers.
• Created new web frame works and bulk JavaScript libraries and tried to improve UX/UI designs in front end to attract more customers.
• Ensured tight cooperation with other engineers, designers, and artists through active
listening, systematic communication, and leadership skills.

Education

Nanyang Technological University, Bachelor's degree
Relevant Coursework: Information Technology, Artificial Intelligence, Blockchain
Jul 2012 — Apr 2016

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