Event Board
ABNiCO Academy offers All Courses 100% LIVE and Instructor Based

Golang Freelance Jobs in Frankfurt, Hesse, Germany in October 2023

Our community is the most energizing community for developers in the world. Customers receive a bonus in TIME tokens every time they make a payment to a Freelancer. This acts as an incentive for Customers to continue using LaborX for all their hiring needs. The TIME they receive can be held, accruing value over time, or alternatively can be used to pay Freelancers. Looking for blockchain expert who can create a messenger with web3 auth and blockchain messaging.

freelance blockchain developers

A transaction is signed using the private key of a sender and contains the address of the receiver. Then after broadcasting, everyone can verify the sender using their public key, which is available through the network. Their support gave rise to solutions like Hyperledger, R3 Corda, and Quorum, an enterprise-focused version of Ethereum started by J.P.

I will design a professional logo for your business or Token

You would be responsible to fork from existing contracts (eg Aave lending pool) and supporting the design process. You will be implementing periphery/factory contracts and dealing with unit testing, and stubs. In many cases, you won’t need to implement an entirely new blockchain solution from scratch. That is, you have specific business requirements that you want to fit into an existing blockchain. Now that you have an overview of blockchain technology, here are some questions every blockchain application developer should be able to answer clearly in an interview.

freelance blockchain developers

But the process of verification of this work is easy and fast, so that everyone can do it in a very short period. This kind of consensus is the agreement among a distributed system’s nodes about the state of the system. It is a difficult computer science problem without a general solution, having been solved only for specific use cases, like bitcoin.

On-Demand Talent

A significant thing to remember is the fact that every transaction (especially in public chains) can take some time before users can see the result. The developer should be skilled at having the app reflect this fact smoothly in its UI/UX, so that the user understands that she/he needs to wait a specific period. This role can be critical in public networks, where there is no way to remove an invalid contact from the network without a hard fork. There are many known security issues, and these can sometimes cause financial loss.

freelance blockchain developers

He gained professional experience in blockchain technology while working on large projects such as Golem. He also has experience in building startups and designing products, as he is a co-founder of DoxyChain, a blockchain-based document management system. When someone wants to send information through Blockchain, they start the process by creating a block.

Looking for Freelancers with a specific skill?

Blockchain Development can also be undertaken by Cryptocurrency Developers. You can find skilled Cryptocurrency Developers for hire on top freelance site like Guru. It’s important that their solutions can be implemented even in immutable (public) environments. The level of modularization should be high, and the connections between smart contracts should be able to change dynamically. For example, the address of a specific contract should be non-fixed, so if a problem occurs, the developer can just point this address to a new address with a single transaction.

freelance blockchain developers

The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else.

Popular Skills

You can find projects for other skills right below or visit our jobs page. At Toptal, we give you the flexibility to work on as many projects and with as many clients as you want, as long as you’re still able to deliver quality work. We give you the freedom to increase or decrease the amount of work at any point. We believe in living a life of freedom that allows you to spend more time getting energized by your passions. We’ve fostered a unique, active lifestyle and culture around this idea that continues to attract thousands of developers to apply every day.

  • Logan is a developer with expertise in the blockchain space.
  • We use cryptography to verify the sender/creator of a specific transaction.
  • With Toptal, you set your own hours, and as long as you have a laptop and some wifi, you’ll enjoy the flexibility to work remotely wherever, and on your own terms.
  • He’s launched multiple Ethereum Mainnet contracts, assisted with over 20 blockchain patent applications, created an NFT, and delivered MVPs.
  • Toptal makes finding a candidate extremely easy and gives you peace-of-mind that they have the skills to deliver.

While I do not have a preferred API for integration, I am open to suggestions. The developer should be knowledgeable about different API options and be able to make recommendations based on the project requirements. Overall, I am seeking a developer who can create a secure and user-friendly wallet for the blockchain platform, with the ability to integrate with an appropriate API. Currently only applicable for TON & TRON, but also flexible for more.

JS React developer to build Webapp

In many practical solutions, this block is itself hardcoded in software. A blockchain is a distributed data structure, in the form of growing list of records—although it can also be represented as a tree—where every node is connected with another freelance blockchain developers by cryptography. In the early 2000s, Satoshi Nakamoto wanted to create a currency that could be signed without any central authority. One issue to solve was how to decide if a transaction happened and in which order it occured in the timeline.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting. The rate that you set is the rate that you will receive for every engagement with a client. With Toptal, you set your own hours, and as long as you have a laptop and some wifi, you’ll enjoy the flexibility to work remotely wherever, and on your own terms.


Being a part of the Toptal community has rewarded me with engagements that match my skills and expertise. You don’t need to bid on projects in a race to the bottom. Instead, just apply to job descriptions that meet your criteria. You would be responsible for extending MVP smart contracts and testing them.