Best Back End freelancers for Hire

574 users found

We found 574 Back End Freelancers for Hire. Post a job for free and hire a freelancer with the skills and reputation to get your task completed.

Work and hire for crypto

Use LaborX to extend your opportunities as a freelancer or to source talent from a global marketplace. Secured by blockchain, powered smart contracts.

Avatar

George Edward

Fullstack Software Developer Canada, Ontario
Average review
22 reviews
Reputation 
392
27 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
Go to profile
Avatar

Stefan Ivanovic

Full stack Web and Blockchain Developer Serbia, Beograde
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
Go to profile
Avatar

Zoran Mitrović

senior developer Serbia, Belgrade
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
Go to profile
Avatar

Milos Radivojevic

Full stack Web and Blockchain Developer Serbia, Bolgrade
Average review
8 reviews
Reputation 
198
9 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
Go to profile
Avatar

Jones

smart contract,dapp developer with solidity,Rust,react, Finland, Helsinky
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
Go to profile
Avatar

Isreal U

Full Stack Developer and Writer United Kingdom, London
Average review
5 reviews
Reputation 
120
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
Go to profile
Avatar

DREY ABBEY

A developer and a digital marketer Nigeria, Lagos
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
Go to profile
Avatar

Phenomenon Studio

UI/UX Design & Development Services Ukraine
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
Go to profile
Avatar

Nadzim Malik

Full stack developer Ukraine, Kyiv
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
Go to profile
Avatar

Bozo Yasuo

bachelor of computer engineering Japan, Tokyo
Average review
1 review
Reputation 
43
1 job 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
Go to profile
Avatar

David Jin

Blockchain and Full stack developer China, Shenyang
Average review
0 reviews
Reputation 
37
0 jobs completed

Skills

About me

I am a senior blockchain and full stack developer. I have 7+ years experience in development mobile apps and websites and 2 years experience in blockchain part. My development goal is 100% satisfaction of clients. Promise, I will deliver you my best result and make you happy. These are my major fields. Enjoy watching. :) -MERN, MEAN, MEVN, AWS, Azure, GIT, Bitbucket -Laravel, Codeigniter -Django, Python, GraphQL, REST api - Mongo, Mysql, Firebase - React Native, Flutter, Swift, .NET, ASP.NET, Xamarin. - Joomla, Wordpress, Drupal, Shopify, Magento - Blockchain, Bitcoin, solidity, Ethereum, NFT, Defi, Wallet. - Data Scraping, Data Processing, AI. - Trading, Marketing, Ecommerce, Affilate - nSEO stuffs, Optimize Site Also, I have services for you. 1.10 hrs / 7 days working 2.Communicate Everyday 3.Time set to your local 4.1 month tech support after complete 5.On time delivery I really hope to see you. Sincerely, David.

Rate

40 USD/hour
Go to profile
Avatar

David C.

Full Stack Game Developer Denmark, Copenhagen
Average review
0 reviews
Reputation 
36
2 jobs completed

Skills

About me

With more than 13 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
Go to profile
Avatar

Luqman Abdulafeez

Full stack developer and crypto expert Nigeria, Abuja
Average review
0 reviews
Reputation 
33
0 jobs completed

Skills

About me

My name is Luqman, and I am a computer science graduate with Gold Medal. As soon as I finished my degree, I started earning certifications in trending technologies. One might say that I am mostly experienced in industrial implementation of software solutions, but that is just not it. I am also an active researcher in computer science, with specific interest in Blockchain and Distributed Computing. My key expertise include (but will never be limited to): - Developing full stack Blockchain Solutions: Including the core network setup, architecture design, business logic implementation, all the way up to front end and application designs. - Developing full stack Mobile and Web Applications: I have experience in trending stacks such as MERN, but will never stop my learning here. I am updating myself with other stacks and if work comes in, I think you can count on my skills.

Rate

50 USD/hour
Go to profile
Avatar

kelvin fundi

Software Developer Kenya, Nairobi
Average review
1 review
Reputation 
32
1 job 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
Go to profile
Avatar

Wilson Dzamefe

MCITP Ghana, Accra
Average review
0 reviews
Reputation 
31
0 jobs completed

Skills

About me

Hi there! I'm Wilson Dzamefe, a Web developer, Microsoft Certified I.T Professional, and business owner. I started my freelance career back in 2012 and has since developed tons of attractive, functional, and SEO friendly websites for my valued customers across the globe. With my intense knowledge of HTML,PHP, Java, Python and CMS such as Wordpress and Shopify, my clients are assured of a great job. My main aim is to impress you and deliver beyond your expectation. Am an honest and enthusiastic personality who delivers my projects on time. It will be a great pleasure to work with you!

Rate

30 USD/hour
Go to profile
  1. 1
  2. 2
  3. ...
  4. 29
  5. Next