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Fiverr Pro
English
$
USD
I will develop secure smart contracts for tokens, defi, web3 apps
Rust Backend Engineering Distributed Systems Data Pipelines APIs
I build production-grade Rust backend infrastructure for blockchain protocols, RPC services, data pipelines, and distributed systems.
Specialist in Solana, EVM, Move VM, durable execution engines, hi...
About this Gig
I develop and audit secure smart contracts for tokens, DeFi, and Web3 applications.
If you need contracts that work reliably in real usagenot just test deploymentsI design, review, and harden contract systems with a strong focus on security, correctness, and maintainability.
What I offer:
Token contracts (ERC20-style), vesting, fees, and access control
DeFi logic: staking, rewards, pools, and protocol features
NFT and governance contracts
Vulnerability scanning and issue reports
Security documentation review and remediation guidance
Fixing, optimizing, or refactoring existing contracts
How I work:
I focus on preventing common and critical risks such as reentrancy, access-control flaws, logic errors, and unsafe upgrade patterns. My goal is not just to deploy code, but to deliver contracts that are safe to use, easy to audit, and ready for production.
Typical projects:
Token launches with vesting or advanced rules
DeFi protocol features and integrations
Security reviews before mainnet launch
Improving existing contracts for performance and safety
If you want secure, production-ready smart contracts for your Web3 product, Id be glad to work with you.
Tools:
Slither
•
Remix
•
OpenZeppelin
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
My Portfolio
Other Blockchain Development & Solutions Services I Offer
FAQ
Which blockchains do you support?
EVM chains (Ethereum, BSC, Polygon, etc.) and Move-based chains (Aptos, Sui).
Do you only audit, or can you also write contracts?
Both. I can build new smart contracts and also review, fix, or secure existing ones.
What does the security review include?
Vulnerability scanning, manual review of logic and permissions, and a report with issues and recommended fixes.
Do you include tests?
Yes. Standard and Premium packages include testing or validation of critical contract behavior.
Is this suitable for production systems handling real funds?
Yes. I focus on security, correctness, and maintainability for real-world usage.
Can you work with my backend or frontend team?
Yes. I can integrate contracts with APIs, wallets, and your application stack.
Do you offer milestone-based projects?
Yes. For larger audits or builds, I can break the work into milestones (review, fixes, final report).
