Blockchain jobs

Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting. Hire Blockchain Developers


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    817 jobs found, pricing in PHP

    Write a conversion C++ script to convert the Ethereum Database that has 5.3M Blocks to the new BerkeleyDB structure and run on our Server. You Need to Know 1. The Structure of the Ethereum Database which is in LevelDB 2. Then study the Graphene Blockchain Database which is in BerkeleyDB. The Blockchain Database that you are converting to is open source at: [url removed, login to view] ...

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    I need to set up a project on my local machine. Only set up with debugging skills. No direct development.

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    Since my coding abilities are very limited, I am looking for a professional coder who can teach me how to code a simple tool (an Android app) - to: . Sign *offline* a specific bitcoin raw transaction; . Generate the QR code of the resulting signed raw transaction. I can pay this professional coder on a per hour basis, and we can remotely work together via Skype and/or Teamviewer, and/or...

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    The project involves building a blockchain application in a supply chain context. We will need to develop a private network with buyers and suppliers and deploy a smart contract that specifies the workflow. Do send a message for more details

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    Integrate receive payments blockchain api in an already built cryptocurrency website.

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    Create function to multi vendor classifieds listings sellers website. Looking to add cryptocurrency payment system. Looking for user to have generated 2 or 3 supported cryptocurrency wallet addresses To load balance and use balance to purchase by semdimg to other user within the website. Need to ceate function to only release payment once confirmation of item has been received and approved. Or ...

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    Do you have experience in Blockchain and Golang skills. I need you to complete some task for me.

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    ICO Advisor Opening 5 days left

    Advisor opening for expert blockchain advisors to join an ANONYMOUS BANKING BLOCKCHAIN TEAM that plan to conduct ICO within 60 days. We are incorporated in tax-free haven, Belize. Advisors are needed for; 1) ICO Marketing OR 2) Blockchain Legal & Government Regulatory This is a success milestone payment project. Upon closing of ICO, you be paid USD 20,000 and 0.5% of the fund you h...

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    Ethereum business idea needed 5 days left

    Hi! Have you been working on Ethereum and or blockchain related projects? I would love to here what we can do together and how we can build a startup. I will be able to fund the project and bring my executive business development experience to the table. Kind Regards, Ndroi

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    Need a community manager for a number of blockchain projects.. Ideal candidate understands that blockchain is more then just money.. We have land registry, supply chain manager, kiosks looking for someone to engage community and explain projects.

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    We are looking for a blockchain expert to write smart contract. You might be required to travel abroad for 1 month. For more details, let's discuss over chat. The salary is competitive and negotiable

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    My team and I have created a token. We have done airdrops, working on a ICO.. Now, we want the token to have a blockchain, a explorer. We have the coin as a token right now. We would like to make it a coin, and or have a blockchain created for it. I really don't have much experience with creating those, just creating and deploying ethereum contracts. We also want a wallet for the token c...

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    Crypto Gateway 5 days left

    Hi, We need a platform where you could exchange a single certain currency into Waves tokens. This is what the platform should look like: - a homepage (we already have this, we have a web designer in our team) where there should be a live graph of the Waves token value (taken through an API that we need integrated) - a user account where the user will be verified through a document upload...

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    The code is ready, all I need you is to deploy it which does not take more than 30 mins.

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    need blockcypher explorer long term position

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    This is a simple Proof of Concept, the prototype needs to have a basic store of medical info, including name, age,tests, vaccinations,radio .... No preference on this is built, can be on ethereum or hyperledger . The scenario should have the ability to have user A store text and have doctors view and edit this. Can provide more details on use case.

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    Hi Folks, There is urgent need of full stack developer having expertise with cryptocurrency projects can write backed in Node js, and front end in React Js or Angular JS..! More details will discuss privately..

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    smart contract Audit 4 days left

    We are looking for someone to be part of a panel to audit a smart contract for crowd sale and token erc20 contract

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    I would like to create a Dating Android application that will allow users to : 1. Create accounts 2. Update their profile (Pictures, Gender, Race, Location) 3. Pay using bitcoins or ethereum to be able to search for other members. Each member will pay a 3-month subscription of $10. Dont worry about the contest prize, I will pay you $200 when i accept your contest.

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    Simple ETH based login system 4 days left

    Hey guys, To be honest this is probably something that with a little patience I could work out myself, I have basic PHP knowledge and a lot of blockchain knowledge, but I'm not sure how to put it all together to meet the specs that I need! So here is exactly what I need, no surprises or hidden work: - A user lands on a webpage, and is shown a unique ETH address, and a payment amount ...

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