Search Results for: Blockchain

I own an art gallery and am looking to easily accept crypto currency from our clients. I've looked at various platforms and essentially just need someone to meet on face time / google hang out /etc for 30 min to an hour and tell me what I need to do as the terminology is a bit difficult and I am new to most things crypto apart from general understanding of blockchain and the big tokens. This could...

Job Type: Fixed price

Crypto Wallet Development Blockchain Cryptocurrency Crypto Asset

Build a main app (API) for companies and a light app (truthlayer.io/light)—checks videos, tokens, assets, votes, anything using AI (e.g., Hybrid Mamba-Diffusion) + blockchain (e.g., Sui). Add badge, link checker, ‘why’ message, mobile-friendly, score list, report button, secret voting + totals. $3,390 fixed—21 days—NDA required—code provided. Upwork only—no off-platform.

Job Type: Fixed price

Web Development API Development AI App Development JavaScript Python Blockchain AI Classifier

We are seeking a highly skilled full-stack web developer with extensive experience in blockchain technology and modern web development practices. The ideal candidate will assist us in building a sophisticated website that integrates blockchain functionalities. You should be comfortable with both front-end and back-end development and have a strong grasp of the latest frameworks and technologies. I...

Job Type: Hourly: $75.00 - $150.00

Node.js React PostgreSQL TypeScript Docker Blockchain Web3 Web Development

I’m launching a crypto payment gateway service called Cryptrac that allows online and physical businesses to accept crypto payments through a branded, white-label interface. I need a skilled full-stack developer (or small team) to build the first version of the platform using the NOWPayments API, specifically the create-payment endpoint. Platform Requirements: Frontend • Merchant-facing dashboard ...

Job Type: Fixed price

React Node.js Web Development JavaScript Full-Stack Development API Integration Blockchain Cryptocurrency

I am looking for an experienced blockchain developer with expertise in Decentralized Finance (DeFi) platforms. The ideal candidate should have a strong background in Ethereum, smart contract development, and DeFi protocols. Responsibilities: Design and develop DeFi protocols and smart contracts on Ethereum. Implement features such as decentralized lending, borrowing, staking, and yield farming. In...

Job Type: Hourly: $70.00 - $85.00

Blockchain Blockchain Architecture Bitcoin Ethereum Smart Contract Blockchain Development

Company Overview: QuarryChain is an innovative blockchain network designed to revolutionize how developers create and deploy smart contracts and decentralized applications (Dapps). Our platform offers an ecosystem of tools that empower users to freely own and store data at high speed, low cost, and with minimal environmental impact. QuarryChain enhances decentralization and governance, addressing ...

Job Type: Hourly: $20.00 - $100.00

Python AI Development C++ Java JavaScript Blockchain Blockchain Architecture Cryptocurrency Tech & IT Product Management

Hey, We're starting a crypto coin marketing initiative. We need a platform to collect, process, and analyze data on all types of cryptocurrencies. We have experts in crypto coin marketing with great ideas, but we're lacking developers. We're looking for a developer who can turn our vision into a project. Then we would like to brainstorm with you about this idea. If you think you can handle this, w...

Job Type: Hourly: $50.00 - $75.00

Python Blockchain Platform Blockchain JavaScript Blockchain Architecture Bitcoin Blockchain Development Web Development

Job Description: We’re ChainRecorder — a blockchain data recording and consulting platform focused on secure, compliant, and verifiable digital records. We’re approaching our go-to-market launch and are looking for a highly experienced Python developer to jump in short-term, clean up and optimize our backend codebase, and help us hit key milestones. Think of this as a “sprint” engagement: fix thin...

Job Type: Hourly: $70.00 - $185.00

Python API PostgreSQL

We’re an IT & Software Development agency working with high-profile clients and exciting projects across web, mobile, and AI-driven platforms. We’re looking for a highly skilled, reliable, and communicative professional to join us in a long-term, part-time role — with serious earning potential.

Job Type: Hourly: $100.00 - $200.00

Contractor Tier: Hourly: $100.00 - $200.00

Web Development Mobile App Development UI/UX Prototyping Desktop Application AI App Development Blockchain Development

We are seeking a best-in-class and AI-powered marketing Go-To-Market Engineer who specializes in building blockchain-based platform communities. We are in the process of launching a years-in-the-making game. This game involves both traditional crypto tokens and real-world assets, a game-of-skill prediction component, and risk analysis in a compliant fashion to make international secondary market o...

Job Type: Hourly: $50.00 - $125.00

Marketing Strategy Blockchain