Find Freelance Back End Developer Jobs

Check out 49 posted Back End Developer Jobs. At LaborX you have a great option to choose a freelance job for Back End Developer Apply for a job now and get paid in cryptocurrency.
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(New) Add funtions to an app progressively

Note: Due to a platform error, this job had to be republished, please reapply. I need to add functions to a mobile application📱 that I have hosted in Google's IDE "Project IDX" using Dart language...

Web3 Software Engineer Intern

Location: Singapore, Hybrid Type: Internship Responsibilities - Assist backend engineers in developing and maintaining backend infrastructure for Web3 applications. - Learn and support the integration of blockchain protocols, APIs, and decentralized storage solutions. - Work...

Senior Full Stack Programmer- Laravel

Senior Full Stack Programmer having extensive experience in Laravel component development. Looking for programmers who are experts in Laravel and full stack development. We have an already running application built on codeigniter,that needs to be...

Venture Scout

About Iron Key Capital: Iron Key Capital is an investment firm specializing in liquid and venture opportunities in the crypto space. We invest in pre-seed and seed-stage Web3 startups focused on enterprise adoption of utility-driven...

PI COIN NEEDED

Hello innovative individual pi coin is needed send me a message now 3000 pi is needed

Freelancing website design

I want a freelancing website with the features of Fiverr or Upwork and a deposit and withdrawal system in digital currency like the laborx website. Warning:  Please note that submitting AI-generated proposals instead of personal...

BTC mining cloud app

Hi  I want create app with f2pool or viabtc with admin panelfor cloud mining I want to have a similar program that when the user registers and chooses her miner, the income and other parameters...

Senior Blockchain Developer & Backend Developer

About the job NOTE: 100% REMOTE, Monday-Friday 8:30AM – 4:30PM work in EST timezone. TYPE: Full-time SKILLS: 5-10+ years Senior Blockchain Developer, Solidity,Web3, Smart Contract, Node.js, JavaScript, MongoDB, Hardhat, Truffle, Agile/Scrum, Jira, CI/CD pipelines, AWS,...

Script Setup on CentOS 7 MORALIS integration

I'm seeking an experienced sysadmin and developer to assist with my CentOS 7 VPS server. The task involves installing a PHP 8, Laravel framework script and its corresponding database, configuring an existing admin panel, setting...

Build a Platform That Honors Satoshi's Legacy

I’m looking for a web developer with the creativity and vision to bring Satoshi v. Goliath, a historical religious thriller inspired by Bitcoin’s mysterious founder, Satoshi Nakamoto, to life online. This isn’t just about selling a book—it’s about creating...

Fix Tonconnect error

My react app has issues connecting to TonConnect, it keeps showing this error when call wallet function.

webproxy

hello I want to open a site completely and without any item from the site failing and at high speed through a web proxy. It must be with a web proxy And I checked all...