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James Wang

@jameswang4

Senior Rust backend and blockchain engineer who built Rust microservices at Kredete and improved Unique Network indexing speed by 45%.

Australia

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At Kredete, I developed Rust Web3 infrastructure microservices from scratch for the Gravv platform, covering service design, implementation, and blockchain integrations. I also integrated Alchemy, QuickNode, and Dfns into backend workflows.

At Unique Network, I built and maintained Rust backend services for NFT indexing and real-time data across Substrate and Solana. I improved indexing speed by 45% and reduced system memory usage.

At Olympus Dao, I developed Solana smart contracts and Rust backend systems using Anchor and Borsh, and contributed to architecture for bonding and staking systems. I also delivered APIs for protocol data and user dashboards.

Earlier, I developed smart contracts and backend services at Supreme Finance and Compound Labs, then built full-stack SaaS applications at X-Team. My work has included Solidity, Go, TypeScript, and API development, as well as performance tuning and on-chain indexing.

Experience

Work history, roles, and key accomplishments

Senior Blockchain Engineer

Kredete

May 2025 - Aug 2026 (1 year 3 months)

Developed Web3 infrastructure microservices in Rust from scratch for the Gravv platform, integrating Alchemy, QuickNode, and Dfns. Contributed to mobile backend development using NestJS and TypeScript, and participated in daily standups and code reviews.

Rust Web3 Microservices Blockchain Alchemy QuickNode DFNS NestJS TypeScript Smart Contracts

Senior Blockchain & Rust Engineer

Unique Network

Jul 2023 - May 2025 (1 year 10 months)

Built and maintained Rust backend services for NFT indexing and real-time data access on Substrate and Solana chains. Refactored legacy code to improve indexing speed by 45% and reduce memory usage.

Rust NFT Indexing Substrate Solana REST WebSockets Docker GitHub Actions Performance Optimization

Senior Smart Contract & Rust Engineer

Olympus Dao

Apr 2022 - May 2023 (1 year 1 month)

Developed Solana smart contracts and backend systems in Rust using Anchor and Borsh. Delivered high-throughput APIs for data aggregation and user dashboards, and collaborated with frontend developers on wallet flows.

Rust Solana Smart Contracts Anchor Borsh TypeScript APIs Full Stack

Senior Smart Contract Engineer

Supreme Finance

May 2020 - Feb 2022 (1 year 9 months)

Designed, implemented, and audited smart contracts for trading, liquidity pooling, and staking. Developed backend services using Node.js and Redis, and reduced API response time by 50% via caching.

Smart Contracts Solidity NodeJS Redis GraphQL Solana Caching Load Balancing

Smart Contract Developer

Compound Labs

Nov 2018 - Mar 2020 (1 year 4 months)

Delivered production-ready Solidity contracts for lending, interest accrual, and staking pools. Built microservices in Go and CLI tools for on-chain analysis, and improved audit processes with coverage-based testing.

Solidity Smart Contracts Go Microservices CLI Truffle Mocha Testing

Full Stack Engineer

X-Team

Sep 2015 - Aug 2018 (2 years 11 months)

Created full-stack web applications with React, Node.js, and GraphQL for SaaS clients. Migrated monolithic systems to microservices with Docker and Kubernetes, and implemented CI/CD workflows.

React NodeJS GraphQL Docker Kubernetes CI CD GitHub Actions Jenkins