Web3 Backend · Multi-chain
Crypto Wallet
A multi-chain NFT wallet where users buy, sell, and showcase digital assets — with AR filters, a social feed, and in-app crypto transactions.
Node.jsSolidityEthers.jsDynamoDB
Principal Engineer
Tharindu Karunanayake
Design it right. Build it to last. Make it novel.
I’m a principal engineer with 8+ years of experience building products from the ground up — from writing the first lines of code as a Software Engineer to leading teams and shaping system architecture.
zsh
$ whoami
principal engineer
$ cat focus.txt
architecture · web3 · crypto · ai
$ uptime
8+ years building production systems
// what i do
Three frontiers, one principle
System Architecture
Distributed backends, event-driven pipelines, and serverless platforms — designed for scale and graceful failure.
KafkaMicroservicesAWS/GCP
Web3 & Crypto
HD wallets, blockchain indexers, smart contracts, and marketplace infrastructure across Ethereum, Avalanche, and Solana.
SolidityEthers.jsProtocols
Applied AI
Deep-learning vision pipelines, AI-assisted risk engines, and data platforms that turn raw signals into decisions.
Deep LearningVisionData
// projects
Featured work
Distributed Systems · Event Streaming
Blockchain Indexer
A real-time indexing pipeline that tracks the full lifecycle of NFTs and marketplace orders — every mint, transfer, burn, and sale — straight from chain events.
Node.jsKafkaMongoDBSolidity
Smart Contracts · Search
NFT Marketplace
A cross-chain NFT marketplace focused on 3D and AR assets, with secure crypto transactions, wallet integrations, and rich search.
SoliditySubgraphOpenSearchDynamoDB
// contact
Let’s build something
I’m always open to interesting problems — especially ones involving distributed systems, web3 infrastructure, or applied AI. If you have one, my inbox is a good place for it.