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I will develop solana web3 dapp for pumpfun presale dex smart contract


About this gig
I am a professional blockchain developer specializing in Solana web3 dApps, smart contracts, and decentralized applications. I help startups, founders, and crypto projects build secure and scalable presale, DEX, and pumpfun-style web3 solutions.
I can develop custom Solana smart contracts, integrate wallet connections (Phantom, Solflare), and build responsive web3 frontends with clean and maintainable code. My focus is on security, performance, and clear project structure, ensuring your dApp is ready for testing and deployment.
What I offer:
- Solana smart contract development
- Web3 dApp with wallet integration
- Presale or DEX-style logic (pumpfun-style)
- Frontend & backend integration
- Clean source code & optional documentation
Tech stack:
- Solana / Anchor
- Web3.js
- React / Next.js
- REST & blockchain integration
I do NOT promise profits or token price outcomes. This service is focused on technical development only, following best practices and platform guidelines.
Please contact me before ordering to discuss your project requirements and ensure the best result.
Get to know Fajar K
Full Stack Developer
- FromIndonesia
- Member sinceJul 2021
Languages
Indonesian, English
FAQ
What do you need from me to start the project?
I will need a clear project description, preferred blockchain (Solana), feature list, reference links (if any), and deployment target (devnet, testnet, or mainnet). Please contact me before ordering to avoid misunderstandings.
Do you guarantee token price, profit, or pump results?
No. I do not guarantee profits, price increase, or market performance. My service is strictly focused on technical development such as smart contracts and web3 dApps.
Can you build pumpfun-style presale or DEX logic?
Yes. I can develop pumpfun-style presale or DEX-like logic for Solana web3 projects. This is a custom implementation and not an official pump.fun service.
Which wallets do you support?
I support popular Solana wallets such as Phantom, Solflare, and other compatible wallets depending on your requirements.
Will I get the full source code?
Yes. Source code is included in the Standard and Premium packages. For the Basic package, source code can be added as an extra service.
Can you deploy the smart contract for me?
I can assist with deployment to devnet or testnet. Mainnet deployment can be discussed separately depending on project scope and readiness.
Do you provide revisions?
Yes. Each package includes revisions as listed. Additional revisions are available as an extra service.
Is my project confidential?
Absolutely. All project details are kept strictly confidential. NDA can be signed if required.
Do you offer ongoing support after delivery?
Yes. I can provide post-delivery support, bug fixes, or feature enhancements as a custom offer.
Can you customize the project beyond listed packages?
Yes. Every web3 project is unique. If your requirements exceed the listed packages, please message me for a custom offer.

