Best Back End Developer freelancers for Hire

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We found 942 Back End Developer Freelancers for Hire. Post a job for free and hire a freelancer with the skills and reputation to get your task completed.

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George Edward

Fullstack Software Developer 
Average review
22 reviews
Reputation 
402
28 jobs completed

Skills

About me

I'm a professional software developer in Blockchain/Web/Mobile/Desktop development and an exceptional designer proficient in design across multiple platforms including websites, iOS applications, Android applications, web apps, and desktop apps. Skills: - HTML/HTML5/CSS/CSS3/JavaScript/SASS/LESS/jQuery - PHP/Python/Ruby/Laravel/MySQL/Node.js/AngularJS/AJAX - Photoshop/Illustrator - Java/C++/C#/C/.NET/GO - Swift/Android SDK - React/Ionic Portfolio: - https://ninjapromo.io - https://www.divrsionarcade.com - https://forsage.io - https://au.mbt.com - http://npw.live - https://p2pb2b.io - https://www.cryptorocket.com - https://playnumbersgame.com - https://www.anonymixx.com - https://blender.io - https://livetrades.com -https://coinverify.com - https://vaquitatoken.net Let's discuss. Thank you. Email: senior.coder007@gmail.com Jabber: cddev2018@jabber.calyxinstitute.org Telegram: @SeniorCoder Discord: seniorcoder#2701 Skype: live:concept_developer

Rate

70 USD/hour
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Bronze client

Stefan Ivanovic

Full stack Web and Blockchain Developer 
Average review
14 reviews
Reputation 
306
14 jobs completed

Skills

About me

Web developer focussed on Blockchain and Crypto-related projects, Crypto Gambling and Betting platforms, Trading Platforms and Exchanges, crypto lending and payment solutions. Last 5 years I have worked on several successful DeFi projects. Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Multichain Web and Mobile Wallet ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ DeFi development: Uniswap, Compound, Mooniswap, Sushi Swap, WBTC, Binance Launchpool, NFT, BakerySwap, Pancake Swap. Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ JavaScript/ Typescript, React.js, Node.js

Rate

50 USD/hour
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Kaishi Yoshinari

Full stack Web and Blockchain Developer USA, Austin
Average review
9 reviews
Reputation 
218
10 jobs completed

Skills

About me

Web developer focussed on Blockchain and Crypto-related projects, Crypto Gambling and Betting platforms, Trading Platforms and Exchanges, crypto lending and payment solutions. Last 5 years I have worked on several successful DeFi projects. Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Multichain Web and Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ NFT ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ DeFi development: Uniswap, Compound, Mooniswap, Sushi Swap, WBTC, Binance Launchpool, NFT, BakerySwap, Pancake Swap. Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ JavaScript/ Typescript, React.js, Node.js

Rate

50 USD/hour
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Bronze client

Zoran Mitrović

senior developer 
Average review
10 reviews
Reputation 
198
10 jobs completed

Skills

About me

Blockchain and Full Stack developer Greetings! Thank you for visiting my profile! As a senior Blockchain and Full Stack developer, I have good experience in these fields for over 7 years. I will delivery perfect result on time. ✔ Blockchain stack Solidity, Truffle, OpenZeppelin, Hardhat, Remix, Web3 ✔ Platfoms Ethereum, Binance Smart Chain (BSC), Polygon (Matic), Fantom, and etc ✔ Smart Contract Development BEP20, ERC20, TRC20, ERC777, ERC223, ERC721, ERC1155 ✔ DeFi Clone Pankcakeswap, Sushiswap, Pantherswap, Moonswap, Quickswap and more ✔ DEX and Centralized Crypto Exchange ✔ Yield Farming & Liquidity Mining Protocols ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ ICO, STO, Blockchain Copyrighting and Whitepapers ✔ Impermanent loss, governance tokens, deflation token ✔ React, Vue, TypeScript, JavaScript, Bootstrap ✔ PHP, Node, Django, Flask, Restful API, Python ✔ MySQL, Sqlite, MongoDB, PostgreSQL

Rate

80 USD/hour
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Bozo Yasuo

bachelor of computer engineering 
Average review
6 reviews
Reputation 
153
7 jobs completed

Skills

About me

Hi, All. How are you? This is Bozo Yasuo living in Japan, BC developer with 6+ years of expirience. I've github 70+ private repos regarding BlockChain dev such as fastswap, croxswap, formation project... If you want, I will share my repos via interview. My working style: - Dedicated effort with full-time - Always can work in your time zone. - Comply with the deadline. - Perfect satisfaction with your project. - Best result with high quality and high speed. I am a strategic engineer with a strong interest in the Cryptocurrency Ecosystem. As a talented crypto dev, I am able to work with your team in long-term. Thx.

Rate

40 USD/hour
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Jemen Ri

smart contract,dapp developer with solidity,Rust,react, 
Average review
5 reviews
Reputation 
124
5 jobs completed

Skills

About me

I am a Blockchain and Full stack developer. When I work on a project, I strive for excellence and 100% client satisfaction. Having an idea is easy, but being able to turn that idea into a reality is the tougher challenge. You have the idea ready, as well as detailed spec and graphics and etc, but the final missing piece of your app is to bring all of these together with programming. That missing piece is my specialty. With your design requirements and idea, I write the code to combine it all into a fully functioning. Blockchain ✔ Ethereum DApps development - smart contract, web3, metamask integration ✔ DeFi development: forking Uniswap, Pancake Swap, Sushi Swap ✔ Build and Deploy a Solana Smart Contract ✔ DEX and Centralized Crypto Exchange ✔ Web/Mobile Wallet ✔ Custom dApps ✔ ICO, STO, Blockchain Copyrighting and Whitepapers Full Stack ✔️ React, React-Redux, React Router, Redux-Saga, Next.js… ✔️Vue, Vuex, Boostrap Vue.. ✔️Django,Laravel,Node js

Rate

50 USD/hour
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DREY ABBEY

A developer and a digital marketer 
Average review
4 reviews
Reputation 
102
6 jobs completed

Skills

About me

Hi my name is Drey abbey I have vast Year of experience in development and also digital marketing my goal is to meet your expectation solve whatsoever problems you may have on development and also digital marketing

Rate

5 USD/hour
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Isreal U

Full Stack Developer and Writer 
Average review
5 reviews
Reputation 
100
6 jobs completed

Skills

About me

Full stack web3 developer experienced in Ethereum, Solidity, Cairo, Web3.js, etc. Can build you crosschain web applications such as Flash Bot, NFT minting website/marketplace, DEX like UniSwap, PancakeSwap, DAO, your own token/coin (ER-20, ERC-721, or ERC-1155) on Ethereum, BSC, Polygon, Solana, etc. Smart contract monitoring and auditing. I'm super excited, can't waiting to hear about your custom web3 project?

Rate

30 USD/hour
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kelvin fundi

Software Developer 
Average review
2 reviews
Reputation 
52
2 jobs completed

Skills

About me

I am a senior full-stack developer with 5+ years of experience. I have helped clients to empower their innovative ideas by building optimal software solutions to meet their business needs. I help individuals, startups, and enterprise customers to fulfill their technical exigencies by developing web applications. As a full-stack web developer, I am skilled in HTML5, CSS, Bootstrap, JavaScript, PHP, Ruby and Rails, Laravel, Vue and React. I can also create WordPress websites by designing custom WordPress themes.Database : SQL, MySQL, MongoDB, DynamoDB, Firebase, PostgreSQL. Teamwork with Git(GitHub, Jira, Bitbucket), Slack, and Trello This set of skills enables me to cover a wide range of projects. Whether you are on a budget or you simply want the latest technologies to be used in your project, I believe we can find a solution that is tailored to your need.

Rate

15 USD/hour
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Lev Wang

Hong Kong, Hong Kong
Average review
1 review
Reputation 
51
1 job completed

Skills

About me

Hello, welcome to visit my profile! I am an experienced Web Developer adept in all stages of advanced web development and a super Blockchain/Web3JS, Solidity expert equipped with a diverse and promising skill-set. Blockchain Experiences: ⭐ Developing Smart Contract using Solidity/Rust ⭐ Presale, ICO/IDO sites ⭐ NFT projects(minting, staking, marketplace and p2e game) ⭐ Defi and DEX(uniswap/pancakeswap fork) ⭐ OlmpusDAO fork ⭐ Crypto Play to Earn game, Breeding and Fight game ⭐ Auto trading Bot / Snipping Bot(Front-run, Arbitrage) Web Experiences: ⭐ Node JS, Nest JS, React JS, Next JS, Vue JS ⭐ PHP, Laravel, Wordpress, Shopify ⭐ MySQL, MongoDB ⭐ HTML, CSS, UX/UI I would like to get a good friendship throughout honest and hard working. If you have urgently problems, contact me please. Thanks.

Rate

50 USD/hour
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Best_ Companyy

DESIGNER/DEVELOPER 
Average review
1 review
Reputation 
50
2 jobs completed

Skills

About me

We are the team of GRAPHI DESIGNER AND DEVELOPER and we have different years of experienced in programming and designing Aspect, And we can handle different type of work such as: NFT MINT WEBSITE, 3D NFT ART COLLECTION, CHARACTER MODELLING, 2D NFT ART COLLECTION, PANCAKE SWAP, and many more and we can use different format/programming language to develop your project and NFTS such as: crystal, JavaScript, c++, java, blender, Maya, Autodesk, UI,UX, Daz_studio and so on depends on your features for each project. kindly inbox us now lets discuss more details about your project. THANKS

Rate

250 USD/hour
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Phenomenon Studio

UI/UX Design & Development Services 
Average review
2 reviews
Reputation 
47
2 jobs completed

Skills

About me

Full-service studio for startups and established companies. Our main areas of activity: ● Web and mobile applications design ● Websites design ● 2D/3D Illustrations ● Logo & Branding ● Development I welcome you to look at our studio's portfolio:
 Dribbble: https://dribbble.com/phenomenonstudio 
Behance: https://www.behance.net/phenomenon-studio

Rate

50 USD/hour
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Nadzim Malik

Full stack developer 
Average review
1 review
Reputation 
44
1 job completed

Skills

About me

I have rich experience in Blockchain development at the level you need.As a blockchain expert, I have deep knowledge about crypto/multi currency.I have created many Dapps and wallet apps adaptable for web and android.I can also Fork uniswap, pancakeswap, Dex and Defi.I am available anytime you need, and will provide my service immediately you ask. Please don't hesitate to contact me if you need my service. Thank you.

Rate

50 USD/hour
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David C.

Full Stack Game Developer 
Average review
0 reviews
Reputation 
38
2 jobs completed

Skills

About me

With more than 15 years experience in game and IT development, we are ready to give your businesses high quality IT Services, Blockchain games, games and software developed with advanced and latest technologies. We are looking for and capable of professional projects below: - 2D & 3D game design and development (Unity) - Blockchain game design and development (Unity) - Smart Contracts development (Solidity) - Mobile Applications (Android studio / Flutter / React native) - Database Design - Server Clustering - back-end development (golang / python / C# ASP.net core / node js / Laravel) - front-end development (HTML / HTML5 / CSS / CSS3 / Sass /Bootstrap / React / Web3 / Angular / Vue / Flutter Web / WordPress) email: wdstudiomarket@gmail.com

Rate

50 USD/hour
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John Peterson

Website Designer SEO expert 
Average review
1 review
Reputation 
38
1 job completed

Skills

About me

People get most of their information online. So, businesses must have modern-looking websites to remain relevant, and many turn to talented web designers.I am a web designers, can create pages that stand out and astonish users. Code the backend of the pages to help them load faster and meet any web application needs. I am also a SEO (Search engine optimization) specialists that can improve website visibility in Google and other search engines. A SEO freelancers who can increase the number of organic visitors to their blog or business website.

Rate

20 USD/hour
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