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Fiverr Pro
English
$
USD
Elnaril is unavailable until Jun 30, 2026
“I'm too busy at the moment but I'll be happy to look into your requirements as soon as I'm available again! :)”
I will dev a blockchain bot, application, script or lib in python
Python Web3 Developer
I have more than 15+ years of experience in software development for corporate and investment banks in London and Paris. I worked in many technical environments, but mainly Java, Python, SQL, Bash.
T...
Vetted by Fiverr Pro
Elnaril was selected by the Fiverr Pro team for their expertise.
Vetted for
Blockchain Development & Solutions
Desktop Applications
About this Gig
Vetted Pro
I can develop a Python application, script or bot for Ethereum and any compatible blockchain (Polygon, Arbitrum, Axie/Ronin, BSC, ...).
I can develop a library and integrate it into your own Python application, script or bot.
I can request any crypto REST API, including:
- Infura
- Etherscan
- CoinGecko
- DEX Aggregator (0x,1inch,Paraswap...)
- Bloxroute,Blocknative
I can query for you Ethereum nodes with web3 requests in Python.
This means I can develop a python app/script/bot that reads for you information from the blockchain and/or send transactions concerning ETH, ERC20, ERC721, NFT tokens, ...
This can be for simple transactions, but also using smart contracts or protocols including 0x, 1inch, DEX (Uniswap, ...) DeFi protocols, ...
Ex tech lead in major European banks (BNP PARIBAS, CREDIT AGRICOLE) for more than 15+ years, in London and Paris, I provide now digital services for individuals and companies of any size.
In contrast to most of other sellers, I provide corporate grade solutions with clean and robust code, based on the analysis of your requirements.
Just send me your requirements after reading the FAQ below and I'll create a custom offer.
Purpose:
Collectibles
•
DeFi
•
Other
Programming language:
Python
Expertise:
APIs
•
Blockchain development
•
Integrating wallets
•
Other
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
FAQ
Do you develop webapp/website front-end (javascript, ...) or back-end ?
No.
Do you develop Smart Contracts (Solidity) ?
No.
Do you develop/deploy new tokens, coins or blockchains ?
No.
Do you develop applications/scripts for non Ethereum compatible blockchains (Bitcoin, Elrond, ...) ?
No.
Do you develop mobile or react native applications ?
No.
Do you integrate Metamask in webapps/websites or do web3 injection ?
No.
For what blockchains do you develop your bots, applications, scripts or libraries ?
For Ethereum and any blockchain compatible with Ethereum, including BSC, Polygon (Matic), Arbitrum, Ronin/Axie Infinity, Avalanche ... I do NOT provide services for NON-Ethereum compatible blockchains like Bitcoin, Solana, Elrond, Cardano, Cosmos, Polkadot, Stellar, Wax, Waves ...
Can you integrate my token into my Unity or Web game/app ?
No.
Is this Gig about something else than blockchains and cryptocurrencies ?
No.
Do you provide/advise crypto trading strategies ?
No. I can implement YOUR trading strategy in a bot/application, providing it's possible, but I don't provide or advise one. And I don't have the ability to judge if your strategy is good enough to be profitable. You need to do your own due diligence before asking me to implement your strategy.
Reviews
53 reviews for this Gig
| (52) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
B brodav7
Repeat Client
United States
Great work! My project was completed much faster than expected. Thank you.
$200-$400
Price
4 days
Duration
E 
Seller's Response
Helpful?B brodav7
Repeat Client
United States
Very professional, went above and beyond the scope of the project, excellent work!
$1,000-$1,500
Price
3 weeks
Duration
E Seller's Response
Helpful?J jfocke
Repeat Client
Germany
We were pressed on time on delivering and Elnaril really went above and beyond to deliver on time and make sure that all the requirement are defined. The code and documentation was clean and greate for even non-developers. Will definitely keep him in mind when looking for further support. Thank Elnaril!
$1,500-$2,000
Price
2 weeks
Duration
Helpful?P prodninety8
Repeat Client
Germany
always love to work with elnaril! super professional and experienced!
$100-$200
Price
3 days
Duration
Helpful?D 
defimodex
Repeat Client
Netherlands
Satisfied customer as always!
Up to $50
Price
3 weeks
Duration
E Seller's Response
Helpful?
Reviews
53 reviews for this Gig
| (52) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
B brodav7
Repeat Client
United States
Great work! My project was completed much faster than expected. Thank you.
$200-$400
Price
4 days
Duration
E Seller's Response
Helpful?B brodav7
Repeat Client
United States
Very professional, went above and beyond the scope of the project, excellent work!
$1,000-$1,500
Price
3 weeks
Duration
E Seller's Response
Helpful?J jfocke
Repeat Client
Germany
We were pressed on time on delivering and Elnaril really went above and beyond to deliver on time and make sure that all the requirement are defined. The code and documentation was clean and greate for even non-developers. Will definitely keep him in mind when looking for further support. Thank Elnaril!
$1,500-$2,000
Price
2 weeks
Duration
Helpful?P prodninety8
Repeat Client
Germany
always love to work with elnaril! super professional and experienced!
$100-$200
Price
3 days
Duration
Helpful?D defimodex
Repeat Client
Netherlands
Satisfied customer as always!
Up to $50
Price
3 weeks
Duration
E Seller's Response
Helpful?
