Rust • Substrate • Polkadot Expert | 5+ years in blockchain | 4x Web3 Foundation Grantee | Production-Scale Web3 Infrastructure
Senior Blockchain Engineer with 5+ years specializing in Rust, Substrate, and Polkadot ecosystem. I build production blockchain infrastructure from parachains and runtime pallets to high-performance data pipelines.
Current Focus:
- 🔗 Building data infrastructure at Bittensor processing 2M+ records/day
- 🚀 Contributing to core Polkadot ecosystem projects
- 🏗️ Specializing in parachain development and runtime engineering
- 📊 Creating scalable Web3 data solutions
-
RegionX Coretime Marketplace – First Polkadot 2.0 marketplace for elastic blockspace
- Tech: Rust, Substrate, React, Polkadot.js | Role: Core Protocol Engineer
-
Taostats Block Explorer – Substrate explorer serving 10K+ monthly active users
- Tech: Rust, SubQuery, React | Role: Technical Product Lead
-
Bittensor Data Infrastructure – Real-time scraping & on-chain indexing (2M+ daily records)
- Tech: Rust, Django, SubQuery, PostgreSQL | Role: Senior Backend Engineer
- Fair Squares – Real estate RWA protocol with fractional NFT ownership
- TheDotFlow – ink! smart contracts for Substrate account management
- RegionX – Coretime marketplace implementation
- Imbue Network – Parachain bootstrapping via community treasury
- ZombieNet – Testing framework for Substrate-based chains
- Parity Bridges Common – Cross-chain bridge infrastructure
- Substrate Core – Contributions to blockchain framework
- Substrate Docs – Documentation improvements
Blockchain Core (Production Experience)
- Rust/Substrate: 5+ years, parachain development, custom pallets, runtime upgrades
- Polkadot Ecosystem: XCM, cross-chain, governance, treasury, Coretime
- ink! Smart Contracts: W3F-granted projects, production implementations
- Ethereum/Solidity: DeFi protocols (Opyn), NFT platforms (Pixelcraft)
Full-Stack Development
- Frontend: React, Next.js, TypeScript, Polkadot.js, Tailwind CSS
- Backend: Node.js, Django, Express, REST APIs, WebSocket
- Data/Infrastructure: SubQuery, PostgreSQL, MongoDB, Grafana, Docker
- Testing: Comprehensive suites, Cypress, Hardhat, Rust testing
Leadership & Delivery
- Managed teams of 4+ engineers, accelerated release cycles by 40%
- Translated product vision into production systems (Taostats, RegionX)
- Cross-functional collaboration, API design, database schema optimization
- Security-first development, smart contract audits, protocol design
Metrics from Production Systems:
- 2,000,000+ daily records processed (Bittensor)
- 99.8% system uptime in production environments
- 10,000+ monthly active users (Taostats)
- 500,000+ daily transactions indexed
- 40% query performance improvement through optimization
- 25% infrastructure cost reduction
- 70% reduction in production incidents
- 4 successful Web3 Foundation grant projects
Key Achievements:
- Secured Kusama parachain slot via community treasury (no external funding)
- Built first production reference for Polkadot 2.0 Coretime
- Contributor to core ParityTech infrastructure (ZombieNet, Bridges)
- Developed high-performance data pipelines with 99.5% accuracy
Current & Recent Roles:
- Senior Backend Engineer @ Bittensor.ai (2025) – 2M+ records/day data infrastructure
- Core Protocol Engineer @ RegionX (2023-2024) – Polkadot 2.0 marketplace
- Technical Product Lead @ Taostats (2023-2024) – 10K+ MAU block explorer
- Senior Developer @ Imbue Network (2022-2023) – Kusama parachain
Previous Leadership:
- Lead Blockchain Developer/CTO @ VineKross – Multi-product DeFi/NFT platform
- Senior Blockchain Engineer @ Blockchains – Digital asset management systems
- Blockchain Developer @ Opyn – DeFi options with millions in TVL
Professional Contact:
- 📧 Email: oliverlim818@gmail.com
- 💬 Telegram: @cuteolaf2
- 🎮 Discord: cute0laf
What I'm Looking For:
- Building next-generation blockchain infrastructure
- Parachain development & runtime innovation
- High-performance Web3 data systems
- Technical leadership in ambitious projects
Always verify contacts through this README. I will never DM you first asking for funds, investments, or sensitive information. Scammers may impersonate me – stay cautious and report suspicious activity.
Pinned Repositories:
"Building the decentralized future, one block at a time."
Last Updated: December 2025