David Bong C. C.
Verified Expert in Engineering
Blockchain Developer
Tokyo, Japan
Toptal member since September 7, 2022
David is a senior full-stack blockchain engineer with 20 years of experience in software engineering. He has demonstrated vast knowledge and technical skills across various industries such as oil and gas, telecommunications, banking, and enterprise solutions, including developing a large-scale enterprise solution for the global company Royal Dutch Shell. David picked up the latest blockchain technology and skills and is a Certified Blockchain Solution Architect.
Portfolio
Experience
- JavaScript - 15 years
- C# - 15 years
- Blockchain - 6 years
- Solidity - 5 years
- Microservices Architecture - 5 years
- Java 8 - 3 years
- Hardhat - 2 years
- Go - 2 years
Preferred Environment
Windows 10, MacOS, Visual Studio Code (VS Code), Slack, Remix IDE, Rust
The most amazing...
...thing I've done was develop a microinsurance POC solution using the Quorum private blockchain and Solidity smart contracts
Work Experience
CTO | Senior Blockchain Solution Architect
BCW
- Delivered several projects successfully, including white-label NFT marketplaces, ESG blockchain solutions, and property tokenization platforms, using leading blockchain protocols such as Hedera, Polygon, and Hyperledger Fabric.
- Utilized Jira, Lucidchart, Microsoft PowerPoint, Microsoft Project plan, and Notion.
- Implemented a while-label marketplace with a high volume of transactions.
Blockchain Solution Architect and Technical Lead
PwC
- Designed and developed various proof of MVP projects using different blockchain protocols, namely Ethereum, Polygon, Hyperledger Fabric, Hedera, and IPFS.
- Managed and tracked projects and source code using the Visual Studio online portal and Jira.
- Engaged in user acceptance testing and go-live activities and followed up with customers to build production versions.
Blockchain Research and Development Lead
Deloitte Japan
- Developed a microinsurance POC solution using the Quorum private blockchain and Solidity smart contracts.
- Tracked and fixed bugs using the Deloitte tracking system and GitHub.
- Supervised the POC implementation and demo sessions with the client.
Experience
NFT Marketplace and Metaverse
The project was to build a metaverse and a non-fungible tokens (NFT) marketplace, promoting the new building in conjunction with blockchain and digital assets. The platform features included a custodial and non-custodial wallet mechanism, secondary marketplace, product redemption, and payment gateway integration.
Health Passport for PwC Japan
Non-custodial Crypto Wallet Platform
SmartRent Decentralized Online Property Marketplace
Decentralized Document Control System
Certifications
Certified Ethereum Developer
ConsenSys Academy
Blockchain Security Architect
Blockchain Training Alliance
Blockchain Architect
Blockchain Training Alliance
Certified Blockchain Solution Architect (CBSA)
Blockchain Training Alliance
Skills
Libraries/APIs
Node.js, Web3.js, React
Tools
Remix IDE, Mocha, Azure Kubernetes Service (AKS), Slack, Azure Active Directory B2C (ADB2C)
Languages
JavaScript, C#, Solidity, Python 3, TypeScript, Rust, Go, Java 8, Python 2
Platforms
Blockchain, Azure, Ethereum, Amazon Web Services (AWS), Azure Functions, Docker, Kubernetes, MacOS, Visual Studio Code (VS Code), Apache Kafka, Hedera Hashgraph
Frameworks
Hardhat, Truffle, Angular, NestJS
Paradigms
Microservices Architecture, Microservices
Storage
Azure Active Directory, PostgreSQL, MongoDB
Other
Consensus Mechanism, Cryptography, IPFS, Windows 10, Amazon Quantum Ledger Database (QLDB), Apache Cassandra, Security, Polygon, Central Bank Digital Currency (CBDC), Hashgraph
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