Browse categories
Explore
Fiverr Pro
English
$
USD
I will perform smart contract security and secure your dapp
Full Stack Engineer, 3d artist, Blockchain Engineer,Security Engineer
I am Fahim Ahamed,
Full-Stack Developer & Blockchain Engineer,
Results-driven Full-Stack Web Developer and Blockchain Engineer with extensive experience in building scalable web applications and secu...
About this Gig
Protect your Smart Contracts & DApps from costly exploits
I provide professional smart contract security testing using fuzzing techniques and manual analysis to uncover hidden vulnerabilities before hackers do.
With the rapid growth of DeFi, NFT, and Web3 applications, security is critical. I help you identify, analyze, and fix vulnerabilities to ensure your contracts are secure, reliable, and production-ready.
What I Offer
Smart Contract Fuzzing Security Testing
Vulnerability Detection & Risk Assessment
Secure DApp Architecture Review
Manual + Automated Testing
Gas Optimization Suggestions
Clear & Actionable Security Report
Vulnerabilities I Detect
- Reentrancy attacks
- Integer overflow/underflow
- Access control flaws
- Logic & business vulnerabilities
- Denial of Service (DoS)
- Front-running issues
- Improper input validation
- Unsafe external calls
Tools & Technologies
- Solidity / EVM-based contracts
- Fuzzing tools (Echidna, Foundry, custom fuzzers)
- Hardhat / Truffle
- Static & dynamic analysis
- Manual security review
What You Will Receive
Detailed security audit & fuzzing report
Identified vulnerabilities with severity levels
Proof-of-concept attack scenarios
Clear recommendation
Tools:
Slither
•
Remix
•
Securify
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
What is smart contract fuzzing?
Smart contract fuzzing is an advanced security testing technique that sends random and unexpected inputs to your smart contract to uncover hidden vulnerabilities, logic errors, and edge cases that traditional testing may miss.
Which smart contracts do you support?
I support Solidity-based smart contracts on all EVM-compatible blockchains, including Ethereum, BNB Chain, Polygon, Arbitrum, Optimism, and more.
What do you need from me to get started?
You will need to provide: Smart contract source code (GitHub or ZIP) Target blockchain/network Any deployment details (if deployed) Project description or documentation (if available)
Do you provide a security audit report?
Yes ✅ You will receive a clear and detailed security report including: Identified vulnerabilities Severity levels (Low / Medium / High / Critical) Explanation of each issue Recommended fixes Proof-of-concept (when applicable)
Do you sign an NDA?
Yes ✅ Your code and project details will remain fully confidential, and I’m happy to sign an NDA if required.
