Solidity Jobs

34 Jobs found
Popular Categories:
Sort by
Blockchain Developer

Job Description:
Are you passionate about blockchain technology and want to contribute to the future of this technological revolution? We are looking for a talented blockchain developer to join our innovative team. We believe that our project has enormous potential to change the way people interact with cryptocurrency and we need a talented blockchain developer to help us achieve our ambitious goals.
⦁ Design and develop innovative smart contracts for our blockchain applications.
⦁ Integrate smart contracts with decentralized applications and other systems to provide a seamless user experience.
⦁ Evaluate the security of the code and ensure that solutions are resistant to potential attacks.
⦁ Evaluate new blockchain technologies to ensure that projects are up to date with the latest developments in the field.
⦁ In-depth knowledge of Solidity and/or Vyper.
⦁ Experience in designing and developing smart contracts.
⦁ Passion for blockchain technology and cryptocurrency.
⦁ Ability to work independently and manage multiple projects at the same time.
⦁ The compensation for this position will be in tokens of our company.
⦁ You will have the opportunity to work on a revolutionary project with enormous potential for growth and success.
If you are ready to take on the challenge of changing the world of cryptocurrency, please send your CV to [contact email address].
Note: Our company is about to launch the pre-seed sale and we will offer token-based compensation for employees who believe in our project and are willing to take risks for a potentially high return on your time's investment. We are aware that this job offer is not for everyone, but if you are a passionate and ambitious blockchain developer, we would love to hear from you.

Subgraph Expert

Hello everyone!
I am looking for subgraph expert.
If you have rich experiences in subgraph to check and get data from all blocks of special chain, please bid.

ERC721,1155 Smart contract developer is needed

We need a smart contract developer to develop a contract
- Contract should be Upgradeable
- Allows multiple NFT's (ERC1155) to be locked against another NFT (ERC721).
- When locking the ERC1155 it should have a vesting period (that can be set)
- When it's gone past the vesting period who ever owns the NFT (ERC721) is allowed to claim that 1155 token and have it come back to their wallet.
- Contract should support as well (for the owner of the ERC721) 
We need to develop a engineer urgently.

Blockchain Developer

need blockchain engineer who can work with me for several months.
you can receive the payment after finish work.
because I am a developer as well.

Tech Lead Frontend

Looking for Tech Lead Frontend (React + web3) to work on projects such as DEX, Bridge 
About us:
Hawex Group Ltd is a fintech company based in the UK. We are building a dynamically developing ecosystem of financial and blockchain products. We are free from bureaucracy and separate business from the tedious routine.
We specialize in mobile banking and wallets, consulting of fintech and blockchain projects, CeFI and DeFi payment solutions, creating smart contracts, exchange and p2p solutions, etc.
What we expect:
— Experience with web3 projects
— Understanding the essence of system analysis
— The ability to explain the architecture of the project in the language of non—technical specialists and consistently describe the operation of the application at the code level
— Strong knowledge of ReactJS, TypeScript
— Ability to understand legacy code
— Development, maintenance, optimization of architecture and technical documentation of products
— Conducting Code Review
— Team management during the development of the front part of blockchain projects: DEX, Bridge, Collateral tokens, DAO
— Break down complex technical tasks into simple steps
— Understand other developers' code, make refactoring decisions and justify them
— Solve complex technical problems independently
— Confident knowledge of the Russian language 
What we offer:
— Remote work format 
— 36 paid days off per year
— Corporate training — courses, trainings, meetups and conferences
— Developed corporate culture — we go in for sports together, skydive, arrange the best corporate parties, sort waste for recycling, read books, watch good movies, solve complex problems and strive to make this world a better place
— A team of experienced, motivated, passionate colleagues
— Career growth — the team is constantly growing. Depending on the contribution, each employee can qualify for an increase in income, new functionality and additional tasks. We take care of our employees
— Cool web3 projects with clients all over the world

Fullstack developers for a solidity-based protocol

For an upcoming dApp, we are looking for contract-based developers to assist with accelerating our roadmap.
This includes:
web3.js integrations
smart contract auditing
If you have previously worked on a dApp in production (on-chain) - feel free to apply.
Please share your github when DMing.

Development of Dex like Pancakeswap

Looking for full stack Web3 & DeFi developer who has experience in forking a clone of Pancakeswap V2 and Uniswap V3.
The project is to create a typical clone of Pancakeswap with all functions including the lottery and betting games.
The right candidate must have successfully done similar projects and has all the codes and smart contracts ready for customization.
The job includes everything in the frontend and backend and admin panel.
You are kindly requested to to answer the following questions when submitting your proposal:
Do you have successful competed DeFi projects like Uniswap or Pancakeswap? Kindly provide working links.
Do you have any web3, blockchain and DeFi projects of your own? Kindly provide working links.
How long do you need to complete the job?
Do you have all the resources and skills to complete the project successfully?

looking for Sr. Blockchain Developer

We want to allow the users can buy our token with fiat. 
so users can buy our token with visa and mastercard... 
if you can do it, plz apply this.

Solidity unit tests to reach 100% coverage

Complete the smart contracts unit tests to reach 100% coverage and 95%+ branch coverage. (requires on erc20 are not required to cover)
Current coverage is around 85% and 60% respectively
Experience required:
solidity, hardhat, waffle, evm
1. 5 days deadline from hiring date
2. reach 100% coverage and 95%+ branch coverage
3. create a PR with your code
4. daily progress reports via telegram or laborx chat
5. daily commits to the PR 

Community Technical Support Engineer

Job description
1. Study and comprehend the architecture of internal software system, information of peripheral products, and master the entire TRC ecosystem.
2. Maintain communityand provide technical support; assist developers to carry out technology integration; facilitate partners to launch products in a timely manner.
3. Handle technical issues occurred during and after technology integrationto ensure the normal flow of operation. 
4. Assist the internal team to collect and organize requests, and convey the sorted feedback to technical and product teams; thereby promoting product optimization and update.
Job requirements
- In-depth knowledge of Tron, Ethereum and its protocols.
- Well familiar with blockchain structure, the use of APIs, and the analysis and locating of error messages in transactions. 
- Skilled in using mainstream Defi (Dex, Lending, Stable coin, Swap, etc.); familiar with mainstream architectures, principles, advantages and disadvantages; capable of analyzing and spotting the cause of common transaction failures in Defi.
Nice-to-have qualifications
- Previous experience in community management such as Discord, Telegram or Discourse forum is preferred.
- Experience in drafting documents or technical blogs is preferred.
- Computer Science or IT related graduates preferred.
- 5+ years of experience in in an information engineering related field with at least 1 year of development or technical support experience preferred.
- Good command of English in terms of listening, speaking, reading and writing skills are required, preferably with overseas study experience or TOEIC score of 800 or above.
- Open-minded, strong sense of responsibility, good presentation and communication skills, learning ability and logic ability.
- Familiar with developer community operation mechanism and actively participate in various developer community activities.
- Highly enthusiastic about the blockchain industry.

Staking website

I would like to develop a staking website where user can connect with Metamask, have a dashboard where he can see daily rewards .
I want do individualy change the % of the rewards per client depending on the profit I make.
So basacaly I invest the BNB in my project and reward the client with a percentage I make. The client can choose staking time (1 month, 3 Month and 6 Month)
how much would a project like this cost about? nothing fancy...the only individual programming is, that I as an admin can chnage daily the % of the reward. kind regards Mario

dexcentralize project base on smart contract UI design

Feature Requirements A decentralized exchange on any one of Ethereum Testnets (i.e., Goerli, Ropsten, Rinkby, or Kovan) that supports the following features: • For Asset Issuer: ▫ issue new asset tokens (Only use ERC20 token standard) • For Users: ▫ Submit buy and sell orders (there are many types of order in finance world, for simplicity, try to support limit order first. If time permits, adding supports for other types of order will be bonus points) ▫ Matched orders in the order marketplace will be executed, please noted that an order can be partially fulfilled (e.g., Alice want to sell 10 TokenA for 5 TokenB, whereas Bob only wants to sell 1 TokenB for 2 TokenA, then 20% of Alice’s order will be fulfilled, 100% of Bob’s order will be fully fulfilled.... The smart contract is already built and we just want to add a buying and selling function only