Nguyen Nguyen

Highlights

• Designed and implemented streaming data pipelines to ingest, process and transform on-chain data into structured, queryable formats
• Designed backend system to process and manage 200+ TB of blockchain data across 19 blockchains, supporting analytics and real-time applications at scale
• Developed high-performance APIs and WebSocket services delivering low-latency data to client applications
• Improved system reliability by handling edge cases in real-time processing and data pipelines
• Optimized infrastructure strategy for performance, cost and scalability

Technologies & tools

Highlights

• Managed infrastructure for 50 Node Validators of Viction public blockchain, VicScan (blockchain explorer), VicMaster (Core Governance DApp)
• Led the development of scalable backend systems and services, delivering production features for a public blockchain
• Designed backend architecture for data-intensive applications, ensuring reliable and efficient data access
• Operated and maintained high-availability infrastructure supporting production systems under heavy load
• Provided technical leadership through architecture design, code reviews, engineering best practices

Technologies & tools

Highlights

• Built a high-performance DEX aggregator with real-time routing, achieving top-3 aggregation performance in the market at the time
• Designed and implemented smart contracts (Solidity) to execute swaps and integrate with multiple DeFi protocols, ensuring secure and efficient on-chain transaction execution
• Optimized routing algorithms to determine optimal execution paths under dynamic liquidity and pricing conditions
• Integrated backend services with on-chain components and external systems to enable reliable and efficient transaction processing

Technologies & tools

Highlights

• Led the development team to build user-friendly block explorer for NeonEVM blockchain
• Designed indexing pipelines to process and transform large-scale data into queryable formats
• Designed and implemented backend API for high traffic system
• Researched and integrated new blockchain protocol and techniques
• Coordinated frontend, backend teams, provided technical, roadmap leadership

Technologies & tools

Highlights

• Contributed to the development of distributed systems and core infrastructure for a production-grade blockchain platform operating with 150+ validator nodes
• Designed and implemented backend components supporting transaction processing and system coordination across a network with 2-second block times and throughput up to 2,000 TPS
• Designed and implemented smart contracts for Governance Voting Dapp
• Built and maintained data services and APIs enabling efficient access to blockchain data
• Designed, built, operated a blockchain explorer platform, ensuring stable production performance while reducing infrastructure and service costs by over 80% compared to third-party solutions
• Operated and optimized high-availability infrastructure, ensuring stability and performance under production load
• Collaborated on system design, performance optimization, production issue resolution

Technologies & tools

Highlights

• Developed and maintained backend services for high-traffic e-commerce platforms serving millions of users across web and mobile applications
• Launched the ZNOW feature, reaching 5% of Singapore’s active customer base, with subscribers increasing order frequency by 300% and average order value by 11%
• Released an online exchange and return module, helping reduce customer service workload and operational costs
• Improved development workflows, increased code quality, introduced unit testing and Test Driven Development (TDD) practices within the team
• Mentored new engineers, performed code reviews, contributed to growing the Vietnam engineering team from 1 to 8 members

Technologies & tools

Highlights

• Built backend systems for network monitoring solutions
• Processed real-time network metrics and data streams
• Worked with networking protocols and system-level performance

Technologies & tools