Build a wrapper for interacting with EVM-based DEXes

€750-1500 EUR

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hơn 1 năm trước

€750-1500 EUR

Thanh toán khi bàn giao

In this project you will create an execution wrapper for decentralized exchanges. You will be using web3 and Python (please suggest a different approach to increase execution time) Your task is to create a wrapper to interact with DEXes (possibility to buy, sell, provide liquidity and remove liquidity) It should include any EVM based chain - iE Ethereum, Binance Smart Chain, Avalanche, Tron, etc. Also you should include as many exchanges as possible. Some DEXes are copy pastes of Uniswap - all of them should be integrated. Exchanges to be integrated: Ethereum: Uniswap, Sushiswap, Curve, Balancer, Dodo Binance Smart Chain: Biswap, Dodo, Pancakeswap Polygon: Quickswap Avalanche: Pangolin, TraderJoe, OopenOcean Optimsm: Perpetual Protocol Harmony: Defi Kingdoms, Defira there should be 3 methods: 1) place_order(chain, dex, market, quantity, buysell, ...) 2) add_liquidity(chain, dex, market, quantity, ...) 3) remove_liquidity(chain, dex, market, quantity, ...) Also integrate dydx and apollox to open and close long or short positions via market as well as limit orders on at least Ethereum and Binance Smart Chain. there should be 1 method: 1) place_futures_order(chain, dex, market, quantity, order_type, buysell, ...) Take care of error handling in the code and provide unit tests with 100% code coverage. Use ETHGaseStation API to get the gas costs for the trade. Please provide me with some examples of your previous work in this field, your idea on how you would approach the project and which DEXes you would suggest to integrate. Good communication skills are a must. You will NOT be provided with funds or private keys to wallets - use your own wallets and testnets to test your code.

Python

Software Architecture

Web3.js

Cryptocurrency

Mã dự án: 35239751

Về dự án

56 đề xuất

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56 freelancer chào giá trung bình €2.212 EUR cho công việc này

@leadconcept

Good day, I have read initial project details & understood the scope of this project. I don't see any technical hurdles or issues delivering this project but my main concern is your selected budget range on Freelancer website, which is very low as compare to the scope of work, so would you be flexible in your budget? If not, then no problem and I wish you good luck but if you are flexible, then please click on the chat button to discuss further. Just so you know, I have 50+ Web/Mobile App Developers in office, UI/UX Designers team, QA developers and some other staff, so you will be working with an experienced & professionals having strong communication & prompt response. Please ignore the bid amount for now. Look forward to hearing from you. Regards, Yasir LEADconcept

€1.500 EUR trong 30 ngày

5,0

(50 nhận xét)

8,6

@liveexperts123

Hi there,I'm biddin on your project "Build a wrapper for interacting with EVM-based DEXes" I have read your project description and i'm an expert in Python and machine learning therefore i can do this project for you perfectly.I still have a few questions. please leave a message on my chat so we can discuss the budget and deadline of the project. Thanks. .. .

€1.500 EUR trong 6 ngày

4,8

(90 nhận xét)

7,7

@umg536

Hi there, I'm bidding on your project "Build a wrapper for interacting with EVM-based DEXes" Being an expert in Python and matlab programming I can do this project for you. please leave a message on my chat so we can discuss the budget and deadline of the project. Also, have a look at my profile for my reviews and portfolios. Thanks Note: This is not an automated bid and i'm ready to discuss your project right now. .. .

€1.500 EUR trong 4 ngày

5,0

(42 nhận xét)

7,3

@sapnathakur14

Hello, Warm Greetings! I am pretty sure I can produce high-quality and perfect results for your project. By using Python, I used to make AI engines, BOT, Web Scraping Tools, and so on. PHP, Python are my major, so you will be satisfied. I am a very highly skilled web developer with more than 5 years of rich experience in such as Laravel, CodeIgniter, Python, Django, etc So more specifically my skills are ... Web Development + Backend: Python Django, Node.js, Laravel, MySQL, MongoDB + FrontEnd: React, Angular, Vue. I hope you share with me more details about your project. Waiting for your reply. Thank you and Good day.

€1.500 EUR trong 20 ngày

4,9

(25 nhận xét)

6,6

@ernestpapyan

Dear client Thanks for your attention. I have a rich experience in development with blockcahin. exactly, I built many bots including prediction, betting and shopping bots with python before. I can help you and satisfy you perfectly. Looking foward to heraing from you soon.

€1.500 EUR trong 10 ngày

5,0

(12 nhận xét)

5,6

@sharmin283

Hi, i m very interested for this kind of job and i am expert blockchain developer with python skills and i can build the wrapper, i know eth, bsc EVM based chain very well, , just knock me via chat, Thanks Rashedul

€1.400 EUR trong 10 ngày

5,0

(17 nhận xét)

5,2

@oleksandrfursov2

Hi. Thank you for posting your job. I am a Python expert with over 9 years of experience with Python-based frameworks and libraries such as Django, Flask, and Falcon, as well as Selenium, Scrapy, and BeautifulSoup. So I can assure you that I will complete the project on time and with a perfect result. Please let me know if you're interested. Thanks and Regards.

€1.000 EUR trong 5 ngày

4,9

(10 nhận xét)

5,0

@pungairi

I've worked in lots of blockchain project such as token creation, minting, marketplace, DEX etc Solidity is my best skill for ERC20, ERC721 with BSC, Ethereum, Avax, Polygon etc. I am expert contract deploy, verify, presale, ICO, Marketing. And I can integrate contract I've made and site (react , vue) with web3 API on desktop, mobile etc that's for minting, Dex, Marketplace. I can make sure I am expert in those fields. I hope to get your kind msg to work on your project. My Regard.

€750 EUR trong 7 ngày

5,0

(7 nhận xét)

4,9

@mitchellking

Hello, client! I've just checked your description deeply and would like to have a chat about it. Having rich experience of blockchain developments, sure I'm the one you are looking for. I'm ready for your project and will try my best to make it perfect. Looking forward to working with you... Thanks!

€1.500 EUR trong 15 ngày

5,0

(5 nhận xét)

4,5

@freelancedev112

Greetings, Thomas P, We can integrate any kind of DEXes as you want EVM based chains, and I will develop node.js backend endpoint per dex. After calling endpoint, you will be able to buy, sell, etc. I am ready to become partner with you. Best Regards

€1.500 EUR trong 15 ngày

5,0

(7 nhận xét)

4,6

@mkastukevich

⭐⭐⭐It's me what you're looking for.⭐⭐⭐ Hi, there. Thank you for your job posting here. As you can see on my profile, I have rich experiences in crypto-related projects including trading platform as well. Especially I have expertise in all functions of trading platform, such as multi-user system, deposit & with drawal functions for cryptocurrencies,building bot, market page with TradingView charting, matching engine for ordering, KYC verification function, etc. I have checked your project description thoroughly and I think that I can help you to complete this project fully 100% sure to satisfy your requirement. So please don't hesitate to contact me and share more details about your project specifications. Everything is negotiable. Best regards.

€2.000 EUR trong 7 ngày

4,8

(2 nhận xét)

4,0

@valeevalex

Hello I want to prefer American like me. I checked your details and I can finish this job in a week as I am a full-stack web developer. If you give me the assignment, I will satisfy you with good results. Please do share more details via chat for discussion. Thanks

€1.200 EUR trong 7 ngày

5,0

(3 nhận xét)

3,9

@cccaliforniacash

Hi, there. As a senior Full Stack Developer and Blockchain expert, I have wealth experiences with Web3 and Python over the last 10 years. Also, I have worked a lot with Ethereum, NFT and Smart Contract before. So, I can build a wrapper for interacting with EVM-based DEXes perfectly. I will do my best to provide the results you are looking for. I can start the work right away. Looking forward to working with you. Thanks. James.

€1.200 EUR trong 10 ngày

5,0

(2 nhận xét)

3,6

@RyuMaster

Hi, Client! I have read your description carefully. As you can read via my profile, I have rich experience in defi project development. I developed many projects including decentralized exchange script & lp token staking, lending protocol, etc. So I can implement your idea with my experience and skills on time. I want to discuss about your details via chat with you Kind Regard

€1.500 EUR trong 10 ngày

4,3

(4 nhận xét)

4,0

@BenjaminEmsallem

Hello dear. How are you doing? I have read your job description carefully and it's very interesting to me. I have been working on various blockchain projects for over 5 years and now I have rich experiences with it. I made smart contracts and deployed them to testnet and mainnet and also build some dApps using them. From my past work, I think I can do your job sufficiently. Looking forward to hearing from you. Thank you.

€1.125 EUR trong 7 ngày

5,0

(1 nhận xét)

3,2

@oleksandrmatvei4

Hi, there. I have finished the similar project as you post 2 weeks ago. I read your requirements carefully and understood very well about the project scope and start working accordingly in stages. I am having more than 9+ years of experience in programming and I believe that I can start working step by step and achieve the project goal in short time frame. I look forward to hear from you soon. Best Regards.

€1.125 EUR trong 7 ngày

5,0

(3 nhận xét)

3,0

@stevst

Hi. How are you? As you are looking for a Smart contract developer I am glad to tell you that I am a professional programmer with 6 years of experience in smart contract development with solidity. As a highly skilled smart contract developer, I can help you perfectly. I am very confident with my skills and I'd like to help your business by doing my best.I think this project is for me and I can finish it in a short time with a quality result. I always believe to make long business relation to client and give best services. I always analyse the requirements and then provide the work in provided timeline and deliver the quality work. My clients have never been frustrated with my work and I hope to make you one of them. Please contact me for more discussion so we can start the project right now. My Main skills - Blockchain: Solidity,Solana Smart Contract, Defi, Dapp, NFT - Front-end: React, Vue, Angular, HTML, CSS, Javascript Thanks and Best Regards.

€1.500 EUR trong 20 ngày

5,0

(4 nhận xét)

3,0

@marinafokina9696

★ Hi, there ★ This is Marina, High-level Website developer. Client's satisfaction is always my first concern. Your satisfaction is my goal. I can do your project nicely. If you work with me, you can see wonderful great project results. I highly value quality over quantity and I put big effort to create a truly qualified product. This had been an important factor which made my previous projects successful. You will know about my skills through your wonderful result. I love pixel-perfectness, responsiveness and enjoy writing tests. I have over 7+ years of experience in PHP, Laravel, joomla, WordPress, CodeIgniter, Angular JS, React.JS, NodeJS, Vue.JS, JavaScript, Python, MySQL, MongoDB, jQuery/Website Design, Graphic Design , HTML5/CSS/JavaScript, Ajax, C# programming, APIs, MVC programming etc. I have good verbal and written English and I always try the best to communicate more clearly and more frequently. High performance, Awesome UI, bug free, all time communication are all promised. Please call me anytime to click chat. Kinds Regards Marina

€1.125 EUR trong 7 ngày

5,0

(3 nhận xét)

2,7

@Work12345x

I can do this for you. Please view my past submitted work in my portfolio's Portfolio Items section.

€1.125,01 EUR trong 14 ngày

4,5

(9 nhận xét)

2,7

@jacobkwan1

✵Whatever relevant to Python✵ ⭐6 yrs experience (More friendly: ✵Django✵ and ✵Selenium✵). ⭐Have 5 yrs experience as a ✵Web scraper✵. ⭐Any time zone available. ⭐Nice written or spoken English communication. ⭐Special talent: excellent aesthetic inspiration. Best wishes

€1.125 EUR trong 7 ngày