Blockchain jobs

I’m planning to launch a new blockchain-based product and I need an experienced developer who can guide me from concept to main-net deployment. At this stage I’m flexible about the exact stack—Ethereum, Binance Smart Chain, Solana or another network—so I value someone who can weigh the trade-offs and recommend the best fit for scalability, fees, security, and time-to-market. The broad vision includes designing the core smart contracts, creating a native token, integrating a secure wallet flow, and building out any web or mobile front-end required for users to interact with the chain. I also want clear documentation and the test coverage needed for a smooth audit. Deliverables I’d like to see: • Technical roadmap outlining the chosen architecture,...

...Telegram Ads Seamless wallet & bot integration Global reach without app store restrictions This significantly reduces friction compared to web or native apps. Suggested Tech Architecture Frontend Telegram Mini App (WebApp API) React / WalletConnect / Telegram Wallet SDK Backend Node.js / Java Spring Boot REST + WebSocket for live trades Redis for trade state management Blockchain Layer EVM chain (Polygon / BSC / Arbitrum) Solidity-based escrow contracts Upgradeable contract pattern Compliance & KYC Third-party KYC provider Encrypted user identity storage Region-based compliance rules...

I am looking for a developer who can develop portable USDT Flashing Software in main network website , the requirements are mentioned below, 1) The software can perform flash of the USDT, as well as the flashed USDT should be transferable from/to unlimited wallets with blockchain confirmations is appreciated. since it is flash btc it must be visible in BTC wallet address for 200 days. There will be no transaction fee while sending from "flash s/w" to "btc wallet" as it will be no confirmations. There will be no limitation for daily transfer for usdt It can’t be tracked as fake transaction. should take normal time to send btc one wallet to another wallet in normal internet connection. 2) These usdt will disappear after 200 days. (negotiable) Note:- Flas...

...Cloud and DevOps AWS, Azure, or Google Cloud Platform Docker and Kubernetes CI/CD pipelines and deployment practices Data and Systems SQL or NoSQL databases (PostgreSQL, MySQL, MongoDB, Redis) Data processing and scalable system design experience Security and Best Practices OAuth, JWT, RBAC authentication systems Secure API development and production standards Optional (Nice to Have) Blockchain or emerging technology experience Expectations Strong real-world development experience Good English communication skills Ability to confidently discuss technical topics Self-motivated and responsible working style Commitment to delivering quality work What We Offer Opportunity to work on international projects Long-term collaboration opportunities Remote and flexible ...

Position: Freelance Smart Contract / Blockchain Engineer Type: Contract / Freelance Location: 100% Remote Workload: Part-time or task-based Compensation: $60–$100/hour (or fixed-price per task) About the Project We are working on DeFi smart contract components, including token implementations and protocol-level logic. Our focus is security, clarity, and real-world usability — not hype. We are building a long-term freelancer pool and looking for engineers who can deliver clean, well-structured Solidity code independently. What You’ll Do Design and implement secure smart contracts using Solidity Work with EVM-compatible chains Review and improve existing smart contract code Follow best practices for documentation, testing, and security Collaborate asynchrono...

I need a web-based crypto cricket fantasy game. The game should include: - Player selection and management - Live scoring updates - Crypto wallet integration Ideal skills and experience: - Game development experience, especially in fantasy sports - Strong knowledge of cryptocurrency and blockchain technology - Proficient in web development - Experience with real-time data integration for live updates Please provide detailed project proposals.

...Extraction: Using tools like ExifTool, the system must extract and cross-reference: o GPS/Time Sync: Compare image lighting/shadows with the stated GPS location and time of day. GPS data should match seller’s declared location where the photos/videos were taken. o Device Fingerprinting: Identify the specific camera model and detect if the file was saved via editing software (Photoshop/Lightroom). • Blockchain Notarization: Upon upload, the file’s "Hash Value" (SHA-256) is recorded on a private ledger. This creates an unchangeable record of the file's state at the moment of upload, preventing future tampering. C. Infringement & Provenance Checking • Reverse Search: Automated "Search-by-Image" (Google Vision / TinEye) to ensure the...

I’m searching for production-ready AI agents I can roll out across several verticals—specifically Healthcare, Real Estate, E-commerce, Blockchain, Crypto, and Social Media. Each solution must already be live somewhere so I can see it operating in real time before we move forward. The core requirements are straightforward: the agent needs to run in a browser, accept its own knowledge base or document set for context, and ship with source code plus clear documentation. I’m also expecting help getting the code stood up in a SaaS or on-prem environment. I’m flexible on architecture; whether you built it around OpenAI, Claude, Llama, FastAPI, Node.js, Pinecone, FAISS, or Weaviate doesn’t matter as long as it performs reliably at scale. To keep things simpl...

I’m searching for production-ready AI agents I can roll out across several verticals—specifically Healthcare, Real Estate, E-commerce, Blockchain, Crypto, and Social Media. Each solution must already be live somewhere so I can see it operating in real time before we move forward. The core requirements are straightforward: the agent needs to run in a browser, accept its own knowledge base or document set for context, and ship with source code plus clear documentation. I’m also expecting help getting the code stood up in a SaaS or on-prem environment. I’m flexible on architecture; whether you built it around OpenAI, Claude, Llama, FastAPI, Node.js, Pinecone, FAISS, or Weaviate doesn’t matter as long as it performs reliably at scale. To keep things simpl...

Position: Freelance Smart Contract / Blockchain Engineer Type: Contract / Freelance Location: 100% Remote Workload: Part-time or task-based Compensation: $60–$100/hour (or fixed-price per task) About the Project We are working on DeFi smart contract components, including token implementations and protocol-level logic. Our focus is security, clarity, and real-world usability — not hype. We are building a long-term freelancer pool and looking for engineers who can deliver clean, well-structured Solidity code independently. What You’ll Do Design and implement secure smart contracts using Solidity Work with EVM-compatible chains Review and improve existing smart contract code Follow best practices for documentation, testing, and security Collaborate asynchrono...

...on-site crypto wallet. Each customer will see a running balance and a full transaction history inside their account dashboard. Core build • Gateway visible at checkout, labelled clearly for card payments that top-up the wallet before completing the order. • Wallet type: crypto-based. You are free to recommend the best open-source or third-party API for key generation, secure storage, and blockchain interaction. • Features required inside the wallet: real-time balance tracking and searchable transaction history. • Admin settings to enable/disable the gateway, set minimum/maximum top-up amounts, and view aggregate wallet balances. • Clean WordPress-style code, no core file edits, fully translatable, and compatible with the current WooCommerce ver...

I am launching a fully-independent blockchain network and need an experienced developer who can take the project from white-paper to mainnet. The chain will run on a Proof of Work consensus, operate inside a closed environment (no external chain bridges), and issue a fiat-collateralized stablecoin that functions much like USDT but lives natively on this new ledger. Beyond the core protocol, I will also require built-in wallet support and a smart-contract layer so third-party developers can deploy dApps once the network is live. Security is paramount; every component—from key management to consensus—must be hardened against common attack vectors and accompanied by clear documentation. Key deliverables • PoW node software and full network setup (testnet + mainnet)...

We are looking for an experienced and reliable lead generation specialist with a strong understanding of the cryptocurrency and blockchain space. Your primary responsibility will be sourcing high-quality, targeted crypto leads based on defined criteria. This may include (but is not limited to): • Identifying potential investors, traders, or crypto-interested users • Sourcing business leads within the blockchain / Web3 ecosystem • Collecting accurate contact details and relevant data • Ensuring leads are verified and up-to-date Requirements: • Proven experience in lead generation (preferably in crypto / blockchain niche) • Strong research skills and attention to detail • Ability to deliver accurate, high-quality data • F...

...concise report that can stand up to court scrutiny. Chain-analysis platforms such as Chainalysis, Elliptic, CipherTrace or open-source equivalents are all acceptable as long as the methodology is transparent and replicable. Deliverables: • A forensic report summarising each wallet, the associated balances (in native units and GBP), and the total aggregated holding • An appendix detailing the blockchain look-ups or block explorer links for every address checked • A brief methodology section covering data sources, time stamps and any attribution techniques used Acceptance criteria: the balances must reconcile to the latest block at the time of submission, the report must be understandable to non-technical legal professionals, and every figure must be veri...

...workforce) * Corporate governance and compliance frameworks * Cross-border transaction structuring * Data privacy and GDPR compliance (e-commerce operations) * Platform and marketplace regulatory compliance Strategic Advisory: * Business expansion legal strategy * E-commerce regulatory landscape (multi-jurisdiction) * Technology and SaaS legal infrastructure * Emerging technology regulations (AI, blockchain/Web3) REQUIRED QUALIFICATIONS: * 7+ years of broad commercial law experience, ideally in-house or as external counsel * Demonstrated expertise in debt collection and enforcement (particularly US) * Proven track record in contract law, intellectual property, and tax matters * E-commerce and/or technology sector experience essential * Multi-jurisdictional practice experience...

I want to demonstrate provable data consistency across a geographically distributed Hyperledger Fabric network by persisting the blockchain ledger in CockroachDB instead of the default back-end. The work centres on two Fabric layers: chaincode and the ledger itself. Chaincode reads and writes must be routed so that every block committed by a peer is durably stored in CockroachDB, and peers must replay that data with no divergence even under node failure or network partitions. The scope includes mapping Fabric’s block and state data structures to a CockroachDB schema, wiring the peer so that commit and endorsement steps call the database seamlessly, and validating the design with a small multi-region testnet. CockroachDB will act strictly as the ledger store; MSP and other ser...

I am developing an end-to-end platform that pulls live claim-related data from Revit models, runs it through a FIDIC rules engine, and then immutably stores and certifies every step on Hyperledger Fabric. The objective is clear: the moment a potential claim is flagged in the BIM environment, it should be automatically registered, classified, validated against the relevant FIDIC clauses, and published to an auditable ledger—with a web dashboard showing the entire trail in real time. Scope of work • BIM connector: a service that extracts the necessary objects, properties, and metadata directly from Revit (IFC compatibility is a plus) and hands them to the API. • Integration backend (API): a lightweight, well-documented REST/GraphQL layer focused on automated workflows&md...

I’m putting together a proof-of-concept and need a single-page web app, built in React, that mimics the look and feel of Dexscreener but runs...project structure and a short README covering setup, bot webhook configuration and any environment variables. Deliverables 1. Source code for the React front-end and server/relay service. 2. Telegram bot webhook endpoint ready to accept price and market-cap updates. 3. Instructions to run locally and deploy to a standard VPS or Vercel/Netlify-style host. This is a sandbox—no actual blockchain hooks—so feel free to keep the architecture lean. If you’ve built trading dashboards or real-time charting tools before, this should be straightforward. Let me know your estimated turnaround and any questions you have a...

...Web3 idea ready to move from concept to code and I’m seeking an experienced blockchain developer to guide and build the entire solution with me. Because the project is still early-stage, I’m open on the specific chain, tech stack, and even the exact feature set—we’ll define those details together during an initial discovery call. What I do know is that the end product will rely on smart contracts, a dApp front end, and secure wallet interaction, so familiarity with Solidity or similar contract languages, , and modern front-end frameworks is essential. Here’s how I’d like to structure our collaboration: – First, a short technical workshop where you assess my concept, recommend an appropriate blockchain (Ethereum, BSC, Polkadot,...

I need a complete, student-facing web application that lets users prove the authenticity of their academic certificates through blockchain hashing. The flow is straightforward: a student signs up, uploads a certificate, and immediately receives an on-chain validation record that anyone can later cross-check online. I have half work done and pages are created Core functionality • Secure user registration and login with email or social auth • Certificate upload, automatic hashing, and immutably storing the hash on a blockchain network (Ethereum or any suitable L2 you recommend) • Instant on-screen validation result plus a shareable verification link • Admin dashboard where I can review submissions, view analytics, and revoke or re-issue hashes whe...

...Client invites Contractor (mock), Contractor invites Subcontractor; mock doc upload (insurance/certificates), auto-checks (expiry/risk score: green/amber/red). Client approval workflow. Project Workflow: Employer dashboard—approve partner/worker, view supply chain compliance (status bubbles up: Subcontractor > Contractor > Client), issue worker badge. Audit/Consent: SHA-256 logs (simulating blockchain), simple approve/share. Tech Stack: React Native (mobile app + responsive web dashboard). Backend: Node.js/Express + mocks, SQLite DB. Auth: JWT. QR for badges/PQQ. Deliverables: Functional React Native prototype (app + web). GitHub repo (full source) + free hosted demo (Heroku/Netlify/Vercel). README w/ setup guide, API mocks list. Timeline & Milestones (AGI...

I need a complete, student-facing web application that lets users prove the authenticity of their academic certificates through blockchain hashing. The flow is straightforward: a student signs up, uploads a certificate, and immediately receives an on-chain validation record that anyone can later cross-check online. I have half work done and pages are created Core functionality • Secure user registration and login with email or social auth • Certificate upload, automatic hashing, and immutably storing the hash on a blockchain network (Ethereum or any suitable L2 you recommend) • Instant on-screen validation result plus a shareable verification link • Admin dashboard where I can review submissions, view analytics, and revoke or re-issue hashes whe...

Hi, I’m building a blockchain/Web3 project and I’m looking for a skilled blockchain developer who can help design and build the project using blockchain technology and Web3. I’d love to connect and explore a potential collaboration. Please let me know if you’re interested.

I am building a service that must accept one-time customer payments directly on a public blockchain. My preferred rail is Ethereum, so the core of the job is a production-ready smart-contract–plus–API stack that lets me generate unique payment addresses, confirm the transfer, and surface the confirmation back to my app in real time. Here’s what I need the finished package to do: • Solidity smart contract deployed on Ethereum mainnet (initially Kovan/Goerli for testing) that logs each payment, enforces one-time use, and emits an event my backend can listen to. • Lightweight Web3 interface or RESTful webhook that notifies my server once a transaction reaches a configurable confirmation depth. • Simple front-end snippet (HTML/JS) that shows the cli...

I need Google Analytics 4 to register every meaningful moment a visitor interacts with our Ethereum-based wallet integration. The scope covers: • Wallet connections – I want separate events when a user connects successfully and when the attempt fails. • Transaction completions – log both payment-success and payment-failed states. • General wallet errors – surface any other connectivity issues as a distinct event so they do not disappear inside generic JavaScript error noise. You may hook into the existing Web3 provider ( is already on the page) or propose an alternative, but the final data must enter GA4 cleanly, ideally through Google Tag Manager for easy maintenance. Acceptance criteria – GA4 real-time debug view shows the five new ev...

I need an advanced crypto fl@shing application that works seamlessly across major exchanges—including Binance, Coinbase, Kraken—and can be extended to Kucoin and any other CEX we decide to add later. The core requirement is elegant, reliable t...length, and launch the flash. • Source code with clear inline comments and a brief README explaining environment setup, key modules, and safety precautions. • A short live demonstration (testnet or small-value mainnet) proving spoofed deposits can be traded or withdrawn before disappearing. If you have prior experience defeating exchange detection systems or building stealth layers around blockchain transactions, that will accelerate selection. Let’s discuss the exact approach, chain coverage, and milestone...

...compelling messaging and value propositions that resonate with users. Monitor and report on key performance metrics, analyzing campaign effectiveness and providing actionable recommendations for continuous improvement. Stay updated on the latest trends in digital marketing, user behavior, and blockchain technology to ensure that our strategies are innovative and relevant. Requirements: Minimum of 4 years of experience in growth marketing, digital marketing, or related fields, preferably within the tech or blockchain sectors. Strong analytical skills with a proven track record in leveraging data to drive marketing decisions and optimize campaigns. Proficient in marketing automation tools, analytics platforms (e.g., Google Analytics, HubSpot), and CRM systems. Excellent com...

My goal is to prove that 50 completely separate Indian embassies can collaboratively train a powerful intrusion-detection model without ever sharing raw traffic logs. Each embassy keeps its packets local, trains an IDS in Python, then ships only the updated weights to a permissioned blockchain that averages them and sends back the enhanced parameters. Key points I need turned into code: • Dual-framework training loops: the local agent must be able to switch between PyTorch and TensorFlow so each site runs whichever stack its engineers prefer. • Attack coverage baked into the dataset pipeline: the IDS must correctly classify Malware, Phishing, and DDoS patterns. Synthetic generation for edge cases is fine as long as the final validation shows clear detection rates for al...

Digital Chain of Custody for Forensic Evidence ​Concept: A system for police and legal teams to track digital evidence (logs, har...evidence is often dismissed because the defense claims it was tampered with after seizure. ​The Solution: When evidence is collected, a cryptographic hash (SHA-256) of the file is generated and stored on a Blockchain. Every time the evidence is "checked out" or viewed by an officer, a transaction is recorded. If the file hash changes even by one bit, the Blockchain rejects it. ​Tech Stack: ​Frontend: React.js or Flutter. ​Blockchain: Ethereum (Sepolia Testnet) or Hyperledger Fabric (for private permissioned access). ​Storage: IPFS (InterPlanetary File System) to store the actual large files; Blockchain only stores the hash...

I'm looking for an experienced blockchain developer to create a smart contract on the Binance Smart Chain for a decentralized value proposition (DVP) platform. Essential requirements include: - Automated settlements - Asset transfer Ideal skills and experience: - Proficiency in BSC - Strong smart contract development skills - Experience with automated settlement mechanisms and asset transfer functionalities Please provide relevant past project experience and a timeline for completion.

...integrating AI into the existing frontend/backend rather than building from scratch. Scope of Work (High-Level) Review existing Web3 website architecture Propose suitable AI use cases and technical approach Integrate AI models/APIs with the platform Connect AI features with blockchain data and smart contracts where relevant Ensure performance, security, and maintainability Documentation and basic testing Skills & Experience Required Strong experience with Web3 technologies (smart contracts, wallets, blockchain data) Experience integrating AI/ML models or AI APIs Frontend and backend web development experience Understanding of security and privacy best practices Ability to communicate clearly and suggest improvements Deliverables Fully integrated AI featu...

.../ Buildroot Round displays AMOLED or TFT Physical inputs Rotary encoder / digital crown Hardware buttons Performance & power awareness Frame pacing Partial redraws Sleep / wake behavior If you have not shipped an embedded UI on real hardware, do not apply. DO NOT APPLY IF YOU ARE: A web developer (React, Vue, Angular, etc.) A mobile developer (Flutter, React Native, SwiftUI) A blockchain / Web3 / NFT developer An agency or team Someone who says “I can learn LVGL” We are not interested in generalists. WHAT YOU WILL WORK ON Watch UI architecture LVGL / Qt render loop optimization Crown-driven scrolling & menus Gesture → UI feedback Haptic-synchronized interactions Power-aware UI behavior Always-on display strategies This role dir...

.../ Buildroot Round displays AMOLED or TFT Physical inputs Rotary encoder / digital crown Hardware buttons Performance & power awareness Frame pacing Partial redraws Sleep / wake behavior If you have not shipped an embedded UI on real hardware, do not apply. DO NOT APPLY IF YOU ARE: A web developer (React, Vue, Angular, etc.) A mobile developer (Flutter, React Native, SwiftUI) A blockchain / Web3 / NFT developer An agency or team Someone who says “I can learn LVGL” We are not interested in generalists. WHAT YOU WILL WORK ON Watch UI architecture LVGL / Qt render loop optimization Crown-driven scrolling & menus Gesture → UI feedback Haptic-synchronized interactions Power-aware UI behavior Always-on display strategies This role dir...

I am rolling out a trio of inter-linked prototypes that tackle pressing urban and environmental challenges while showcasing cutting-edge AI, blockchain, and IoT engineering. First, the AI-driven Smart Traffic System must ingest multi-sensor feeds, apply real-time reinforcement learning, and demonstrate measurable gains in a simulation such as SUMO—specifically a double-digit reduction in congestion and wait times across a 20-intersection grid. Second, the Blockchain Voting System needs an end-to-end verifiable ballot flow. I expect audited Solidity or Substrate contracts, mobile-friendly front-end, zero-knowledge vote secrecy, and a testnet demo with at least fifty dummy voters that passes a public audit script. Third, the Solar-Powered Smart Watering System will run...

I need a full-stack solution that turns raw Revit project data into verifiable FIDIC-compliant construction claims, stored immutably on Hyperledger Fabric and surfaced through a clean web dashboard. The workflow I have in mind is straightforward: Revit models (or their IFC/CSV exports) are pushed to a REST API you build in Node.js or Python. Your parser extracts the quantities and events that matter, the rule engine interprets them under the FIDIC Red Book, and the resulting claim package is written to a Fabric network. Every supporting document or 3D fragment is fingerprinted, with the hash anchored on-chain and the file itself held on IPFS or another secure store. The same API must expose three core functions—claim management, user authentication and data analytics—so t...

I need a compact script or small utility that talks to Uniswap o...details The focus is squarely on those two capabilities—both must work end-to-end. I’m looking for clean, well-commented code plus a quick README so I can plug in my keys, run it, and see the price or have the swap execute without extra tweaking. Speed matters: I need the first working version within 24 hours of contract start. When you respond, concentrate on your direct experience building blockchain or Uniswap-style swap tools; a concise note on where you’ve solved the same problems before is all I need to decide quickly. Deliverables • Source code • README / usage notes • Short proof (logs or TX hash) showing one price call and one live swap working on Monad That’s...

...art/finance, lack of African representation in NFTs), 4) The Solution (Nzinga Crypto Warriors collection honoring Queen Nzinga), 5) Market Opportunity (NFT market size, African art demand, crypto adoption), 6) Product Overview (collection details, 10k supply, rarity tiers, artistic vision), 7) Historical Significance (Queen Nzinga Mbande 1583-1663 legacy), 8) Unique Value Proposition (African history + blockchain + cyberpunk aesthetics), 9) Roadmap (4 phases: Genesis, Expansion, Metaverse, Legacy), 10) Tokenomics ($NZINGA utility token overview preview), 11) Revenue Model (primary sales, royalties, merchandise, licensing), 12) Go-to-Market Strategy (whitelist, influencers, partnerships), 13) Team & Advisors, 14) Competitive Analysis (vs other NFT projects), 15) Traction &...

...verification, company verification). • OTP with Virtual Keyboard – OTP entry via virtual keyboard for at least two high-risk actions (password reset, resume download, account deletion). • Secure Logging and Audit – Log all critical actions (authentication, job posting changes, application status updates, admin moderation). – Logs must be tamper-evident using hash chaining or a private blockchain. • Defenses Against Attacks – Protection against SQL injection, XSS, CSRF, session fixation, and session hijacking. Data Storage Compliance – Passwords must be hashed and salted (bcrypt or Argon2). – Plaintext passwords must never be stored. – Sensitive documents must be encrypted with strict access control. • Sca...

...verification, company verification). • OTP with Virtual Keyboard – OTP entry via virtual keyboard for at least two high-risk actions (password reset, resume download, account deletion). • Secure Logging and Audit – Log all critical actions (authentication, job posting changes, application status updates, admin moderation). – Logs must be tamper-evident using hash chaining or a private blockchain. • Defenses Against Attacks – Protection against SQL injection, XSS, CSRF, session fixation, and session hijacking. Data Storage Compliance – Passwords must be hashed and salted (bcrypt or Argon2). – Plaintext passwords must never be stored. – Sensitive documents must be encrypted with strict access control. • Sca...

...verification, company verification). • OTP with Virtual Keyboard – OTP entry via virtual keyboard for at least two high-risk actions (password reset, resume download, account deletion). • Secure Logging and Audit – Log all critical actions (authentication, job posting changes, application status updates, admin moderation). – Logs must be tamper-evident using hash chaining or a private blockchain. • Defenses Against Attacks – Protection against SQL injection, XSS, CSRF, session fixation, and session hijacking. Data Storage Compliance – Passwords must be hashed and salted (bcrypt or Argon2). – Plaintext passwords must never be stored. – Sensitive documents must be encrypted with strict access control. • Sca...

...FinTech / Blockchain / Supply Chain / Agriculture Finance Topic (Fixed): Role of Blockchain Technology in Improving Transparency, Efficiency, and Financial Access in Agriculture Supply Chain Financing Project Requirements: • Minimum 15,000 words • Well-structured academic project • Includes: • Introduction & background • Literature review • Research methodology (mixed method) • Analysis & discussion • Conceptual framework/model • Findings & recommendations • Conclusion • Proper citations & references (APA/Harvard) • Plagiarism-free (Turnitin <10%) • MBA-level quality (IIM/Executive MBA standard) Timeline: 3 days (strict deadline) Freelancer Profile Required: • Experie...

...**3. Overall Technical Scope** ### **3.1 Mandatory Architecture Requirements** Bidders must propose a production-grade architecture covering: * Backend: Microservices architecture (Java / Go / Node.js acceptable; rationale required) * Frontend: Web (React or Vue); Mobile optional * Real-time data: WebSocket * Event streaming: Kafka or equivalent * Databases: MySQL / PostgreSQL + Redis * Blockchain: EVM-compatible (NFTs, tokens, on-chain events) * Security: RBAC, audit logs, AML integration * Deployment: Docker-based CI/CD --- ## **4. Functional Scope (Core Modules)** ### **4.1 Core Trading System** * Spot trading * Basic derivatives / futures * Real-time order book, trades, and K-line charts --- ### **4.2 NST Behavior Mining & Quest System** * Full behavior tracki...

...can create and quickly grow) a crypto-focused Twitter account with a real, engaged following. The core task is product promotion: craft and publish a short series of tweets, threads, or spaces announcements that highlight my coin’s value proposition, build excitement, and drive traffic to our website and Telegram channel. Your audience should be demonstrably interested in trading, DeFi, or blockchain news—no generic tech crowd, please. What I need from you • A Twitter handle with a proven or rapidly provable crypto-investor follower base • A clear promotional plan: post formats, frequency, key hashtags, and timing • Live links/screenshots to verify engagement (likes, retweets, comments, impressions) during the campaign • A brief perform...

...the platform itself acts as an on-chain escrow using the Solana blockchain. The project is partially completed. Your responsibility will be to finish the remaining features, integrate and secure Solana smart contracts, make the application platform-independent, and deploy it to production. Scope of work includes completing pending frontend and backend features, integrating Solana escrow smart contracts using Anchor, wallet integration with Phantom or Solflare, ensuring cross-browser and responsive behavior, fixing bugs, optimizing performance, deploying both smart contracts and the application, and providing basic deployment documentation. Tech stack used in the project includes (full stack), Solana blockchain, Anchor framework, PostgreSQL or MongoDB, and Tailwind CSS...

An 800-word article is needed that dives straight into the future developments of Electronic Health Records (EHR) within the wider healthcare IT landscape. The piece should zero in on the forward-looking trends—AI-powered decision support, FHIR-driven interoperability, patient-facing mobile access, blockchain-backed security, voice recognition, and any other cutting-edge innovations changing how clinicians and patients interact with health data. Write with an informed yet approachable tone so healthcare executives, IT managers, and clinical leaders can grasp both the technical and strategic angles. Natural integration of keywords such as electronic health records, healthcare IT, future EHR systems, interoperability, and AI in healthcare is important, but please keep the flo...

I need an advanced crypto flashing application that works seamlessly across major exchanges—including Binance, Coinbase, Kraken—and can be extended to Kucoin and any other CEX we decide to add later. The core requirement is elegant, reliable t...length, and launch the flash. • Source code with clear inline comments and a brief README explaining environment setup, key modules, and safety precautions. • A short live demonstration (testnet or small-value mainnet) proving spoofed deposits can be traded or withdrawn before disappearing. If you have prior experience defeating exchange detection systems or building stealth layers around blockchain transactions, that will accelerate selection. Let’s discuss the exact approach, chain coverage, and milestone...

I’m gearing up to launch a full-fledged DApp on Binance Smart Chain and I’d like an experienced blockchain developer to bring it to life. The core of the job is end-to-end DApp development—from writing and testing the smart contracts to connecting them with a clean, responsive front end and deploying everything onto BSC mainnet. Here’s the flow I have in mind: • Architect smart contracts that match the project logic and security best practices. • Build or integrate a Web3-enabled interface (React, Vue, or similar) so users can interact seamlessly. • Handle testnet deployment, iterative QA, and finally mainnet release, including clear documentation so I can maintain the codebase after hand-off. I’m open to your technical prefer...

...where every new order receives its own self-custody Ethereum deposit address. I need a small service that can: • Derive a fresh address from a master wallet (BIP-32/44 HD path preferred) each time my store’s API creates an order. • Secure those addresses behind multi-signature authentication so funds can only be moved with the required M-of-N signatures I specify. • Listen to the Ethereum blockchain in real time, detect incoming payments to any of the generated addresses, confirm once they reach my chosen block depth, and push a webhook or callback so my application can mark the order as paid. You’re free to use tools like , , or a light-client implementation in Node or Go; just keep everything non-custodial and under my full key control. Deliv...

I run a Shopify-based e-commerce store and I’m ready to start accepting Tether (USDT) at checkout. I need a developer who can build and install a fully functional USDT payment gateway that plugs seamlessly into my existing Shopify setup, routes the customer to a blockchain payment page, detects on-chain confirmation, then updates the order status inside Shopify in real time. The solution must • sit alongside my current card and PayPal options without disrupting them, • generate a unique wallet address or payment reference per order, • listen for the confirmation callback and mark the order as Paid automatically, • display clear success/failure messages to the shopper. I’m open to whichever network (ERC-20, TRC-20, etc.) you feel is most reli...

...process the same material—extract keywords, generate a concise summary, possibly produce embeddings—and write those insights back into the token’s metadata or a linked JSON file. Think Solidity (ERC-721 or ERC-1155 with OpenZeppelin), IPFS or Arweave for storage, plus a Python or Node script that calls GPT-4 / Llama via LangChain or similar. This person must also be familiar with setting up a blockchain and wallets. Specifically using AWS to start, but flexible on learing. Deliverables • Hyperledger smart contract with ownership, transferability, and royalty logic ready for main-net deployment • Data ingestion script that uploads assets, builds metadata, and calls the contract’s mint() function • LLM integration code that analyses e...