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Solidity smart contract

$30-250 USD

Closed
Posted 5 months ago

$30-250 USD

Paid on delivery
smart contract using solidity that will let userA send a payment, let in hold, and when the userB confirm the payment and userA confirm he received the file too, then the payment will go to userB and part of it (our fees) will go to our account, and also it should be able to differentiate based on the payment request id so we can run the contract for different users at the same time.
Project ID: 37580946

About the project

17 proposals
Remote project
Active 4 mos ago

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17 freelancers are bidding on average $251 USD for this job
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Hello, my name is Valerii and I am a seasoned blockchain developer with more than 7 years of experience. I understand that you are looking for someone to develop a smart contract using Solidity that will let userA send a payment, hold it until userB confirms the payment and userA confirms he received the file too. Then the payment will go to userB and part of it (our fees) will go to our account. I believe I am the perfect person for this project! With my strong knowledge and rich experience in smart contract development (including Ethereum, Polygon, Binance Smart Chain), I am confident that I can provide exactly what you are looking for. If you take a look at my portfolio you'll see that I have a lot of experience working on a variety of different blockchain projects - from connecting wallets such as Metamask to pre-sales/whitelists to staking I have got you covered. Additionally I have lots of experience breeding/adapting tokens as well as minting/uniswapping/swapping tokens.
$140 USD in 7 days
4.9 (4 reviews)
3.5
3.5
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Hey there! My name is Ranjith Jupaka and I am an enthusiastic full-stack blockchain developer with more than one year of work experience. I have worked on real life industrial projects. I believe I am the perfect person for this job because of my extensive experience in developing secure smart contracts using Solidity. I also have experience in deploying contracts to binance, polygon and ethereum. Let's discuss more over chat Ranjith jupaka
$180 USD in 7 days
5.0 (1 review)
2.2
2.2
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Hello there! My name is Jan Dexter, and I am an experienced professional Full-stack developer working from last 6 years in the web development and App development. I have worked on many different types of projects, including smart contracts using Solidity. I understand that you are looking for someone to create a smart contract that will let userA send a payment, hold it until userB confirms the payment, then release it once userA confirms he has received the file too. Once all three parties have confirmed receipt of payment, the payment will go to userB and part of it (our fees) will go to our account. I believe I would be the best fit for this project because of my extensive experience with Solidity and other aspects of smart contract development that would be necessary for your project to run successfully. My goal is to provide quality results within an affordable timeframe so that you get results fast while still getting the type of results you expect from a professional website.
$140 USD in 7 days
0.0 (0 reviews)
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hi, there ! I understood what you need and I m sure I can handle your project perfectly. As an experienced solidity programming developer, I m very familiar with smart contract development and deployment on Ethereum , BSC etc for payment method by using solidity. Please give me ping. Best Regards
$140 USD in 7 days
0.0 (0 reviews)
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Hello there! My name is Mohamed Ansar I believe I am the perfect person for this project! From my extensive experience in Solidity and smart contracts I am confident that I can deliver a product that meets or exceeds your expectations. With my commitment to excellence and dedication to working full-time on projects I'm sure we can get this done quickly and effectively. Please don't hesitate to contact me if you're interested in working together! Best Regards.
$140 USD in 7 days
0.0 (0 reviews)
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Hello. I have read your job post very carefully and I am interested in your project. I have many experiences and strong skills in Blockchain and NFT, Cryptocurrency. So I can use Solidity and Web3JS, React to complete your project. We can discuss the project in chat more detail. If you hire me, I will do my best for you. Thanks.
$50 USD in 1 day
0.0 (0 reviews)
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I have many years of experience in blockchain projects based on Solidity and Haskell, I have successfully written several projects.
$75 USD in 3 days
0.0 (0 reviews)
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In response to your outlined project, I have crafted a basic Solidity smart contract that aligns with your specifications. This contract allows UserA to initiate a payment, places it in escrow, and releases it to UserB once both parties confirm the completion of the transaction. Additionally, the contract incorporates a payment request ID to enable concurrent processing for various users. I have a comprehensive understanding of blockchain technology, smart contract development, and the intricacies of Solidity. My goal is to deliver robust and secure solutions that meet the unique needs of your project. I look forward to the opportunity to discuss how my skills and experience can contribute to the success of your project. Thank you for considering my application. Sincerely,
$200 USD in 3 days
0.0 (0 reviews)
0.0
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I am writing to express my interest in the Solidity Smart Contract Developer position for the development of an escrow payment system. With a strong background in Solidity and experience crafting secure and efficient smart contracts, I am well-suited for your project. **Key Offerings:** - **Solidity Expertise:** Proficient in writing smart contracts with a focus on security and efficiency. - **Escrow Systems:** Experienced in creating trustless and secure escrow payment systems. - **Custom Payment Logic:** Adept at implementing complex payment logic, including fee deductions and conditional releases. **Proposed Solution:** I propose developing a Solidity smart contract that enables payment holding, conditional release, fee deduction, and handles multiple transactions using unique payment request IDs. **Collaborative Work Ethic:** Committed to a collaborative and agile approach, ensuring effective communication and adaptability to project needs. **Security and Compliance:** Adhere to best practices and conduct thorough testing to ensure the contract's security and functionality. Thank you for considering my application. I am eager to contribute to your project and welcome the opportunity to discuss how my skills align with your specific requirements.
$140 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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Hello, my name is Net and I am a full stack developer with more than 12 years of experience. I understand you are looking for someone to create a smart contract using Solidity that will let userA send a payment, hold it until userB confirms the payment and userA confirms he has received the file too before making the payment to userB. It should be able to differentiate based on the payment request ID so it can run the contract for different users at the same time. I believe that I am the perfect person for this job as I have the knowledge and skills necessary to create a successful project. My core skills include Solidity which is required for this project, as well as other programming languages such as Python, C++, Go and Java. This makes me well-versed in all aspects of software development, from developing applications to networking and hardware configuration. This makes me an ideal candidate for your needs as I can provide high quality results quickly while also maintaining confidentiality and discretion. I am committed to giving the best result to you - quality work with quick turn around - so please feel free to contact me if you would like more information or would like me to discuss further?
$140 USD in 7 days
0.0 (0 reviews)
0.0
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Hello, I am Diego Carranza founder of Dapponics. We have the expertise needed to develop you smartcontract. Few questions about your project: What currency are you considering for userA - userB payments? How do you want to keep track the different transactions? Do you need a frontend to provide your users an interface to the smarcontract? I look forward to know more about you and your project, please contact me.
$250 USD in 7 days
0.0 (0 reviews)
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Hi I'm Italian too, get in touch and let's discuss this properly
$140 USD in 7 days
0.0 (0 reviews)
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Member since Aug 23, 2019

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