Contact person: Business Client

Phone:Show

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Location: Augusta, United States

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Job Title

Solana Rust / Anchor Engineer (Part-Time, DEX Swap Hardening)

Project Description

We are building a Solana-based DEX swap protocol.
Core architecture and smart contracts are already implemented.

We are looking for an experienced Rust + Solana + Anchor engineer to help with hardening, testing, and production readiness of the existing on-chain swap program.

This is not a beginner role and not frontend work.

Work Type and Compensation

Part-time: approximately 4 hours per day

Monthly contract

Monthly pay: USD 400

Salary revision after 6 months based on performance and reliability

Long-term collaboration possible

We value patience, consistency, and loyalty.
Long-term contributors will be rewarded as the product matures.

Company Background

One project already launched successfully

Seven additional projects planned in the same ecosystem

This DEX is part of a larger, long-term product roadmap

Scope of Work (On-Chain Only)

Review existing Solana swap smart contracts

Harden financial logic and edge cases

Define and enforce invariants (balances, fees, slippage)

Add property-based tests or fuzzing

Improve oracle safety (staleness, deviation checks)

Implement multisig authority and emergency pause

Validate signer and CPI safety

Assist with devnet testing and production readiness

Required Skills (Must Have)

Strong Rust experience

Solana smart contract development

Anchor framework experience

Experience with DEX, AMM, or swap logic

Understanding of financial math and edge cases

Nice to Have

Prior work on Solana DeFi protocols

Familiarity with Raydium, Orca, Jupiter, or Saber

Experience preparing contracts for security audits

This Role Is Not

Not Flutter or mobile development

Not frontend or UI work

Not NFT or meme token projects

Not short-term, hit-and-run freelancing

Application Requirements

Please answer the following in your proposal:

Solana programs you have worked on (links if available)

Have you used Anchor in production? Provide details.

Experience with invariant testing or fuzzing

Availability for part-time work (4 hours/day)

Interest in long-term collaboration

Proposals missing these answers will not be considered." (client-provided description)