Find Freelance Javascript Jobs

Check out 40 posted Javascript Jobs. At LaborX you have a great option to choose a freelance job for Javascript Apply for a job now and get paid in cryptocurrency.
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React Developer

I would love to find someone we can work together to finish a project for a client.A couple of small UI/UX fixes.He should have good UI/UX skills and easy to work with.Thanks.

Swap sniper bot for Solana (Raydium)

The bot must have an easy interface, it only needs to change the secret key from the wallet, the token address and already the selling thresholds.
Functions:
- To sell the token that I indicate automatically, when the price of the token reaches the price indicated by me
- To sell the token that automatically indicates it, when the sum of the coins they own reaches 5 Solana for example. (total amount can be selected by me)
- Slippage and transaction fees can be adjusted so that transactions are processed first.
I need this robot more to sell the tokens I own after buying, I buy them manually but I need a robot that will sell them automatically at the price selected by me.
In case the transaction failed but the selling price exceeds the price that I indicated, it will automatically try to sell once more

I need a senior Blockchain & React Developer

We are currently seeking a highly skilled and experienced Senior Blockchain & React Developer to join our team. The ideal candidate will have a strong background in Blockchain, Crypto, web3.js, Javascript, and Dapps development. As a Senior Developer, you will be responsible for designing, developing, and implementing secure and efficient Blockchain solutions using React and other relevant technologies. You will work closely with our cross-functional teams to gather requirements and deliver high-quality products.
Responsibilities:
- Collaborate with cross-functional teams to gather and define requirements for Blockchain projects.
- Design and develop robust and secure Blockchain solutions using React and other relevant frameworks.
- Write clean, efficient, and maintainable code.
- Conduct code reviews and provide constructive feedback to team members.
- Optimize the performance and scalability of existing Blockchain systems.
- Troubleshoot and resolve technical issues in a timely manner.
- Stay up-to-date with the latest industry trends and technologies related to Blockchain and React development.
- Mentor junior developers and provide technical guidance and support.
Requirements:
- Bachelor's degree or equivalent experience in Computer Science, Information Technology, or a related field.
- Proven experience working as a Senior Blockchain & React Developer.
- Strong knowledge of Blockchain, Crypto, web3.js, Javascript, and Dapps development.
- Experience with React and other relevant frontend technologies.
- Solid understanding of smart contracts and decentralized applications (Dapps).
- Familiarity with Blockchain development frameworks (e.g., Ethereum, Hyperledger).
- Proficient in using version control systems (e.g., Git).
- Excellent problem-solving and critical thinking skills.
- Strong collaboration and communication skills.
Preferred:
- Experience working in Agile development environments.
- Familiarity with DevOps practices.
- Knowledge of other Blockchain platforms and protocols.
- Contribution to open-source Blockchain projects is a plus.
We offer a competitive salary package and a challenging work environment where you will have the opportunity to make a significant impact. If you are passionate about Blockchain technology and have the required skills, we would love to hear from you. Apply now!

Mailer with alias

I'm looking for create an application in order to send mail with alias (an emkei.cz like but that integrate also integrate my mailobox)that I can connect my own domain name. the important is taht I could pass email with good reputation by using DKIM and SPF record. further I'll need that I could add a catch all email.

deploy this telegram bot on Eth mainnet and some l2

The bot will be deployed on etherum but the product will be available on L2s like scroll, linear and base.

fork a dapp and deploy on Base

We have a dapp fork from Polygon, it needs to be forked on Base and integrated to the backend.

Fork indexer and onepage frontend using react, tailwind

In direct. Using react, ethers, axios, tailwind, wagmi (https://wagmi.sh/) and rainbowkit (https://www.rainbowkit.com/)

Looking for React js or Laravel developer

I am looking for web developer who has 4+ years expereince.
https://wakandasun.com/
This project is made using wordpress.
now I am going to update it with React, Next or Laravel.

Building a Custodial crypto wallet

We are building a non custodial crypto wallet using account abstraction. Since AA allows for transaction batching we are also building a complementary marketplace for devs to deploy their strategies (1click automations) so that a user doesnt have to leave the wallet. Example Yearn Strategies and Donkey finance.
In addition to the marketplace web app, there will be a GitHub repository containing a base strategy with hooks (like the hooks _beforeTransfer, _afterTransfer), allowing developers to create their own customized flows.
1 cent base fee on all transactions + 20% murkup on gas. this fee is split 50/50 with the deployer of the automation.
You will be building a number of base defi automations (batched transactions) + design and develop an onchain strategy factory for strategy deployment. Creation of all the necessary documentation for other developers will have to be worked on in parallel (wrappers, building blocks for strategy creation, helpers, protocol integration handlers, token handling)
Once you grasp the idea i would like to hear what would be your approach to designing and developing the onchain strategy factory.
So please write a proposal with your detailed approach. 
I will continue discussion with well written proposal candidate.
Regards.

WooCommerce expert developer to develop an affiliate plugin

I'm looking for a WooCommerce expert developer to create an affiliate plugin. The plugin requirements is attached.
Please go through the requirements and let me know if you have any questions.
Thanks!

Build Complex telegram bot

We're working on an exciting Telegram bot for our crypto community. The bot will offer collaborative investment opportunities, allowing community members to pool funds together and invest in specific tokens. The primary requirements for this project include proficiency in Telegram bot development and integration. Additionally, experience with smart contracts and the Ethereum blockchain is essential, as the bot will handle secure fund management and implement voting mechanisms. As we're keen on maintaining confidentiality, we'll share more specific project details with you once we identify the right fit. To help us better understand your expertise, could you please provide examples of past work related to Telegram bot development and blockchain technologies? Additionally, we'd love to hear your thoughts and vision for this innovative Telegram bot. If you believe you have the skills and experience required to take on this exciting challenge, we'd be thrilled to discuss further details and collaborate on this project together!

Create a Beefy fork

I need a dev web3 front end developer to create a beefy fork. Work will be to add new network on the fork and implement the pool.