(Solidity / Rust) – Remote

Moonshot; United States; Remote; USD 150,000 - 195,000; Full time

Benefits offered by this job

Health coverage

Job summary

Moonshot seeks a Smart Contract Engineer to own on-chain trading programs on Solana and EVM chains. You will take contracts from spec through audit to production, joining a small team to ship real code quickly and deploy within two weeks.

You will work with security auditors, design cross-chain paths, and build robust test suites using Anchor tests, Foundry, and fuzzing to ensure safe, high-volume trading operations.

Qualifications

• Shipped production programs on Solana (Anchor) or an EVM L2 with significant volume.
• Experience debugging at bytecode level or equivalent low-level environments.
• Strong testing/verification mindset including fuzzing and formal verification.

Responsibilities

• Own core trading programs (order execution, auto-sell, fee routing, token launches) from spec to deployment and audits.
• Design cross-chain and settlement paths with protocol engineers.
• Build and maintain a thorough test suite using Anchor tests, Foundry, and fuzzing.
• Collaborate with security auditors through release cycles.

Skills

Solana (Anchor)

EVM L2

Bytecode debugging

Test automation

Fuzzing

Formal verification

Audits

Cross-chain integration

Trading mechanics

Tools

Anchor tests

Foundry

Job description

Headquarters: MiamiURL: https://the company.com

Smart Contract Engineer — the companyRemote · $150K + equity

About the companythe company makes trading simple. Our mobile-first app gives more than 2 million users access to the latest tokens, tokenized stocks, and leverage trading, with over $4B in volume processed since launch in 2024. Every trade, auto-sell, and fee flow runs on-chain, and the contracts behind them have to be fast, safe, and correct.

The Role

You’ll own the on-chain programs that power the company’s trading products on Solana and EVM chains. You’ll take each contract from spec through audit to production, and help design how we expand to new chains and products. We’re a small team, so you’ll join early and ship real code fast. Expect your first production deployment within your first two weeks.

What You’ll Do

• Own core trading programs, including order execution, auto-sell, fee routing, and token launch, from specification to deployment and audit
• Design cross-chain and settlement paths alongside our protocol engineers
• Build and maintain a thorough test suite using Anchor tests, Foundry, and property-based fuzzing
• Work directly with our security auditors on each release cycle

You Might Be a Fit If You

• Have shipped production programs on Solana (Anchor) or an EVM L2, ideally securing more than $10M in TVL or volume
• Can debug at the bytecode level when something breaks at 2 a.m.
• Value the unglamorous work: testing, fuzzing, formal verification, and audits
• Have delivered at least one end-to-end cross-chain integration (bridges, oracles, or settlement)
• Understand trading mechanics such as slippage, MEV, and transaction ordering on Solana

Compensation & Benefits

• $150K base salary plus meaningful early-stage equity
• Full health, dental, and vision coverage (US-based hires)
• $2,000 annual learning budget