sonia33

Rust & Solana Engineer


Senior Rust Engineer | DeFi & Web3 Infrastructure | Solana & Sui

I am a systems-focused Rust engineer bridging the gap between high-availability Web2 financial systems and high-performance Web3 infrastructure. With a strong foundation in handling complex data consistency and concurrent architectures, I specialize in building robust DeFi protocols, matching engines, and data indexers.

What I've done:

  • DeFi & Trading Systems: Architected and developed the core matching engine and indexer for a Perpetual DEX. Solved critical race conditions and state machine inversions by implementing a "Batch Ingestion + Actor Dispatcher" model to guarantee deterministic ordering in high-throughput environments.
  • Web3 Infrastructure: Deep expertise in the Rust ecosystem (Tokio, asynchronous programming, multi-threaded task schedulers).
  • Smart Contracts: Developed and deployed programs on Solana and Move-based NFT smart contracts on Sui, mastering the intricacies of cross-chain ecosystems and on-chain program security.
  • Fintech Background: Brought 3 years of enterprise experience in building highly available, fault-tolerant financial reconciliation systems processing massive daily transaction volumes.

What I'm looking for: I am looking for a Senior Rust Engineer or Core Protocol Engineer role where I can tackle deep technical challenges in distributed systems, cryptography, or DeFi infrastructure. I thrive in teams that value clean code, memory safety, and innovative Web3 architecture.


Experience: 3 years

Yearly salary: $44,000

Hourly rate: $30

Nationality: 🇨🇳 China

Residency: 🇨🇳 China


Experience

Core Rust Developer
Toya Labs
2025 - 2026
Lead the design and implementation of matching engines and on-chain interaction modules. Focus on high-concurrency, low-latency asynchronous services using Rust + Tokio. Maintain 80%+ test coverage through comprehensive unit and integration testing.
Java Backend Developer
Ping An P&C Insurance
2022 - 2025
Managed daily operations and performance tuning for the core claims system. Led quarterly iterations from requirement review to deployment. Conducted code reviews and mentored junior engineers.

Skills

java
solana
typescript
rust
english
chinese-mandarin