Blockchain Jobs

I need a self-contained plugin for Trust Wallet that adds full USDT support on both iOS and Android. The core features are straightforward: users must be able to send and receive USDT seamlessly, view an accurate transaction history (confirmations, timestamps, hash links), and enjoy the same security and usability they already have in the main Trust Wallet experience—no feature regressions. You’ll be working with the official Trust Wallet Core libraries, USDT ERC-20 contracts, and the mobile SDKs for iOS (Swift) and Android (Kotlin/Java). Clean integration is essential: the new module should slot into the existing wallet architecture so that balances refresh alongside other assets, push-notification logic keeps working, and any future wallet updates will not break the plugin. ...

I'm seeking an experienced developer to create a Web3 strategy game accessible via web browser and integrated with the Solana blockchain. Key Requirements: - Develop a strategy game on Web3 - Deployable on web browsers - Integration with Solana blockchain Ideal Skills & Experience: - Proficiency in blockchain development, especially Solana - Experience in game development, particularly strategy games - Knowledge of smart contracts and Web3 technologies - Strong UI/UX design skills for a seamless gaming experience - Ability to deliver within budget and on time

I am building out the core of a new product on the Solana blockchain and need a seasoned engineer to write, test, and deploy custom smart contracts. Your job is to translate a set of functional requirements into secure, efficient on-chain programs, then walk me through deployment and version control so I can maintain the codebase moving forward. The role is 100 % Solana focused, so I expect fluency with Rust, Anchor, the Solana CLI, and standard auditing tools. If you also enjoy crafting full dApps or connecting on-chain logic to existing back-end services, that will be useful down the line, but for this phase the deliverable is solely the smart contract layer. Deliverables – Well-documented Rust/Anchor smart contracts that satisfy the functional spec – Local and test-net d...

URGENT: Payment will be done later with a separate contract to make the payment after the job is done due to a funding problem and will be paid through this platform, the freelancers you will hire will be paid in crypto. We need a TA Generalist with main talent for acquisition, you need to identify who we need and also why by spotting the best talent for a Memecoin Project Web3 project. We wanna be successful I would consider 10m market cap a success if not higher, we need to launch to market in the shortest time possible. You should have knowledge DeFi ecosystem and HR tools like LinkedIn Recruiter.

Project Title Senior Android + Blockchain Developer Needed to Complete Multi-Chain Crypto Wallet (NEXA BULL) with MLM Integration Project Overview We are developing a multi-chain Android crypto wallet application named "NEXA BULL". The initial Android project structure and basic functionality are already developed, but several features still require completion, optimization, and full integration. We are looking for a highly experienced Android + Blockchain developer to complete the wallet and integrate it with our MLM website backend system. The wallet should function similarly to leading crypto wallets such as SafePal Wallet, Trust Wallet, and MetaMask, supporting multiple networks, tokens, live prices, and secure wallet management. Current Project Status The Android app has alr...

I have a bep20 token and require 2 options that both need to be included in the smart contract so users have 2 options to claim tokens: 1) Simple smart contract function on bsc where users send bnb to the contract address and receive project tokens in exchange. 2) Need users to interact with the smart contract by using a web3 function as simple as possible and get a set amount of tokens per claim and I need in this contract to take a small fee on top of gas that is to be deducted when user calls contract to claim tokens. This small fee will be sent to admin wallet for each transaction but this will not include gas (small fee will land in admins wallet each tx). I need for this all to be 1 transaction for the user so they call the contract from my website and metamask,...

I want to open a new trading account and get it ready for live use, but I’d prefer someone on the ground in Bangladesh to guide me step-by-step. The immediate task is straightforward: create the account in my name and make sure it is fully operational. Because I already trade on Binance, we can speak the same crypto language—USDT transfers, basic blockchain concepts, and exchange workflows won’t need explaining. Here’s what I expect from you: • Walk me through the sign-up flow in real time (video call or screen-share is fine). • Complete KYC and regional verification smoothly, using best practices you’ve tested yourself. • Leave me with clear, written next steps for deposits, withdrawals, and any Bangladesh-specific compliance tips. You must b...

I want to open a new trading account and get it ready for live use, but I’d prefer someone on the ground in Bangladesh to guide me step-by-step. The immediate task is straightforward: create the account in my name and make sure it is fully operational. Because I already trade on Binance, we can speak the same crypto language—USDT transfers, basic blockchain concepts, and exchange workflows won’t need explaining. Here’s what I expect from you: • Walk me through the sign-up flow in real time (video call or screen-share is fine). • Complete KYC and regional verification smoothly, using best practices you’ve tested yourself. • Enable all basic security layers—email/SMS confirmation and, if time allows, Google Authenticator 2FA—s...

I'm building Xrealy Ledger (XRY), a decentralized settlement infrastructure for financial institutions. I need expert assistance in three key areas: WASM-Based Programmability: - Smart contract deployment - Custom transaction processing - Integration with external APIs Regulatory-Native Privacy Enhancements: - Data encryption - User anonymity - Compliance with regulations Setting Up Decentralized Settlement Infrastructure Ideal skills and experience: - Proficiency in WASM and smart contract development - Strong background in cryptography and privacy protocols - Experience with decentralized finance (DeFi) infrastructures - Knowledge of regulatory compliance in the financial sector Looking for a developer who can work on all three aspects effectively. Dear ...

I want to open a new trading account and get it ready for live use, but I’d prefer someone on the ground in Bangladesh to guide me step-by-step. The immediate task is straightforward: create the account in my name and make sure it is fully operational. Because I already trade on Binance, we can speak the same crypto language—USDT transfers, basic blockchain concepts, and exchange workflows won’t need explaining. Here’s what I expect from you: • Walk me through the sign-up flow in real time (video call or screen-share is fine). • Complete KYC and regional verification smoothly, using best practices you’ve tested yourself. • Enable all basic security layers—email/SMS confirmation and, if time allows, Google Authenticator 2FA—s...

Freelancer Needed – Advanced On-Chain Gambling Protocol with Liquidity Pool, Fully Operational Arbitrage Engine, Railway Backend Compatibility, and Optional Complete Automation I am seeking a highly experienced blockchain developer to finalize, secure, and deploy my on-chain Gambling system. The project already has a working base structure (Telegram bot + smart contract framework), but it must now be transformed into a fully operational, production-ready decentralized protocol with sustainable liquidity mechanics, integrated arbitrage logic, and a backend fully compatible with Railway. This is not a basic betting application. The objective is to build a mathematically sound, automated, liquidity-backed on-chain betting system that functions independently and does not require manual...

Project: "The Oracle Agent" – Elite AI Arbitrage Bot (Polygon Mainnet) 1. Executive Summary I am seeking a world-class Full-Stack Web3 & AI Engineer to build "The Oracle Agent". This is a high-performance, astonishingly designed Telegram AI Bot that identifies and executes on-chain arbitrage on Polymarket Liquidity Pools. It features a "from-nothing" wallet system, 1ms fail-safe simulations, and a cinematic interface that transforms complex DeFi math into a luxury user experience. 2. The Visuals: "An Astonishing Experience" The bot must be visually stunning and move away from standard "wall of text" bot outputs. * Cinematic UI: Use high-end Telegram formatting with custom headers, horizontal dividers (───), and consistent iconogr...

Project: "The Oracle Agent" – Elite AI Arbitrage Bot (Polygon Mainnet) 1. Executive Summary I am seeking a world-class Full-Stack Web3 & AI Engineer to build "The Oracle Agent". This is a high-performance, astonishingly designed Telegram AI Bot that identifies and executes on-chain arbitrage on Polymarket Liquidity Pools. It features a "from-nothing" wallet system, 1ms fail-safe simulations, and a cinematic interface that transforms complex DeFi math into a luxury user experience. 2. The Visuals: "An Astonishing Experience" The bot must be visually stunning and move away from standard "wall of text" bot outputs. * Cinematic UI: Use high-end Telegram formatting with custom headers, horizontal dividers (───), and consistent iconogr...

We are looking to acquire or license an already developed crypto analytics or smart wallet tracking SaaS platform related to blockchain data analysis / EXPERT OR SENIOR DEVELOPERS ONLY. The objective is to accelerate the launch of a new crypto intelligence platform by working with developers or teams who already have a working product or prototype that can be adapted and expanded. At this stage, we are not looking to build a project from scratch. Instead, we want to review existing crypto platforms, dashboards, or SaaS tools that can be customized and further developed. ________________________________________ Platforms We Are Interested In We are open to reviewing solutions such as: • Crypto wallet tracking tools • On-chain analytics dashboards • Smart money tracking platfo...

I need a full-featured crypto casino built from the ground up with a modern and sleek interface. The core of the platform must include slot machines, poker and blackjack that run smoothly on desktop and mobile, with provably-fair logic and real-time game analytics. All monetary flows should be on-chain. Players must be able to deposit, wager and withdraw in Bitcoin, Ethereum and Litecoin, with automatic rate conversion and transparent transaction histories. A secure wallet system, KYC hooks and anti-fraud measures have to be in place from day one. The UI should feel crisp, animated and intuitive—think dark mode by default, lightweight micro-interactions and fast page transitions, all responsive down to phone portrait. I will provide brand colours and typography; you handle Figma de...

The task is to design and execute a U.S.–focused campaign that grows the active user base for our company token. Success hinges on clear, trackable traction among American holders and community members, so every tactic must be data-driven and fully compliant with U.S. regulations. Primary objective • Rapidly grow our user base in the United States. Core channels • Social media, with Twitter as the main stage. • Strategic influencer partnerships that reach crypto-savvy audiences. Scope of work First, craft a concise positioning statement that resonates with U.S. retail investors and builders. From there, build a content calendar for Twitter—threads, spaces, memes, and short-form video teasers—supported by coordinated influencer drops. Curated give...

Scheduling meetings and taking care of Travel arrangements. Stay with me during employment, assisting me with day-to-day activities Attending calls and messages, travelling to conferences in India with me Composing Emails and taking follow-ups This is purely an offline job, please don't apply if you can't relocate to Bicholim, Goa After 2 months of training, all the works can be done on the freelancer platform, can be worked in remote Chance to learn from Blockchain, Big data startup company

**Project Title:** Build – Direct INR to USDT Buy & Sell App (India) **Project Overview:** We are building a compliant India-based crypto platform where users can directly buy and sell USDT with the company (not P2P). The company will maintain its own USDT liquidity and handle transactions directly. This is not a trading exchange. This is a direct buy/sell platform for USDT only. --- **App Working – User Side** 1. User downloads the app. 2. User signs up with mobile number and completes full KYC. 3. After KYC approval, user can access Buy and Sell section. --- **BUY USDT Flow:** 1. User enters amount in INR. 2. App shows: * Live USDT rate * Fees (if any) * Final USDT amount user will receive 3. User proceeds to payment. 4. User pays INR using integrated pa...

Je cherche un formateur capable de m’accompagner pas à pas dans l’univers des crypto-monnaies. Mon objectif est clair : comprendre les bases indispensables et mettre en place une stratégie réaliste qui me permette de viser au moins 1 000 $ de revenus mensuels. Contexte • Domaine choisi : investissement financier, orientation crypto-monnaies. • Niveau actuel : débutant complet, aucune expérience pratique. Ce dont j’ai besoin 1. Programme structuré couvrant les notions essentielles : portefeuille, échanges, sécurité, analyse fondamentale et technique simplifiée. 2. Sessions interactives (appel vidéo ou chat) pour poser mes questions en direct. 3. Étapes d’action...