Blockchain jobs

I need a senior blockchain engineer to build and ship a full-featured P2P exchange and non-custodial wallet using React Native for iOS and Android. Users will register with phone or email, confirm through OTP, then receive JWT-secured sessions. Inside the app they must be able to hold and move BTC, ETH and USDT across TRC20, ERC20 and BEP20 networks, with private keys remaining on the device. The trading engine has to support P2P buy/sell with an escrow smart contract and limit orders for direct matching. Fiat on-ramp payments will begin with UPI and standard bank transfer; the flow must release crypto automatically once escrow conditions are met. An admin console will let me review KYC/AML submissions, manage disputes and view transaction logs in real time. Security is critical: ...

Job Summary: We are seeking a detailed-oriented Crypto Accountant Digital Funds Ma...Technology Implementation: - Utilize specialized crypto accounting tools and traditional ERP systems. Required Qualification and Skills: Education: - Bachelors Degree in Accounting, Finance or a related field. Experience: - 1-3 years+ of professional accounting experience. - With at least 1 year focused on cryptocurrency or digital assets. Crypto Knowledge: - Strong understanding of blockchain technology, wallet management, and crypto transaction types. Analytical Skills: - Excellent analytical and problem-solving abilities to handle large datasets. Compliance Awareness: - CPA or candidate for CPA certification. - Experience with specific crypto accounting software. Must reside in ...

I’m expanding our business development reach and would like to team up with proactive partners who can bring in qualified B2B leads for our technology solutions anywhere in the world. You can tap any region-North America, Europe, Asia, UAE or emerging markets-as long as the prospects operate within the tech space (Software, Web Development, SaaS, IT services, cloud, cybersecurity, Blockchain, Mobile App Development etc.). Here’s the core of what I need from you: a detailed project proposal that outlines how you plan to source, qualify, and deliver the leads. Specify channels, projected volumes, sample qualification criteria, and how you will report progress. Feel free to include metrics you’ve achieved on past campaigns if that strengthens your case, but the propo...

I need a blockchain developer to build a complete crypto payment infrastructure for an existing Node.js and Express web application. The system needs to generate unique HD wallet deposit addresses for each user using BIP44 derivation for Bitcoin, Ethereum, Litecoin, and Solana. When a user deposits crypto to their unique address the system must detect the transaction, verify it on-chain, credit the user's USD balance in the database, and immediately sweep the crypto to the owner's personal wallet. The system must handle ERC20 token deposits for USDT and USDC on Ethereum addresses, detect blockchain reorgs, handle Bitcoin RBF transactions, and include a gas top up bot for Ethereum sweeps. All balance updates must use atomic PostgreSQL transactions with row level lock...

...mock data with real smart contract and backend-connected data flows Implement wallet connection, wallet state handling, and transaction flows Build a hooks/data layer that abstracts contract calls and backend reads Integrate frontend flows with smart contracts and contract interfaces Design and implement a lightweight backend for off-chain features Build and manage a centralized database for non-blockchain data Implement user preferences, labels, notifications, and reminder features Set up email reminder infrastructure and supporting backend logic Handle indexing and efficient data retrieval for dashboard views Deploy and maintain the application on self-hosted infrastructure Document the stack for handover, maintenance, and future development Work closely with the smart contract...

...a next-generation global education and certification ecosystem and are looking for strategic partners, agencies, and education consultants to collaborate with us on a revenue-sharing basis. Our platform offers modular, credit-based learning programs, including: * Micro-certifications (short-term, skill-based) * Stackable diplomas and advanced diplomas * Credit-accelerated degree pathways * Blockchain-verified certificates and transcripts This is not a traditional franchise model. Instead, we work with Authorized Learning & Admission Partners who help us expand globally by onboarding students and organizations. What We Offer: * High-demand, globally relevant programs (AI, business, healthcare, legal basics, etc.) * Flexible learning pathways (students can progress at thei...

...system calls the endpoint with the deposit details; the service verifies the signature, checks the payload against the schema, watches the blockchain until the transaction has the required confirmations, then triggers an automatic transfer to the chosen account. Both domestic (ACH, SEPA, etc.) and international (SWIFT) payouts must be handled seamlessly by the same codebase. Key points to cover • ERC-20 listener that works on the Ethereum mainnet and testnets. • Stateless REST interface with API-key headers; keys must be easily rotated. • Strict JSON Schema enforcement for every request and response. • Wallet-side security anchored in the blockchain plus the API-key layer on the server. • Integration with a reliable ETH payment gateway...

BUDGET $150 CAD, OUTSOURCING, SEE CODE ATTACHED I’m looking for an experienced blockchain developer to review, debug, and fully fix an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets. Project Context This system is designed to interact with instant-resolution betting markets and prediction markets, where outcomes resolve in seconds. The strategy focuses on arbitrage opportunities where pricing inefficiencies allow for risk-minimized profit when executed correctly and atomically. Important: The current system is not functioning correctly, and part of this job is to identify why (especially flash loans failing) and ensure everything works end-to-end ...

BUDGET; 150 CAD, OUTSOURCING, SEE CODE ATTACHED I’m looking for an experienced blockchain developer to review, debug, and fully fix an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets. Project Context This system is designed to interact with instant-resolution betting markets and prediction markets, where outcomes resolve in seconds. The strategy focuses on arbitrage opportunities where pricing inefficiencies allow for risk-minimized profit when executed correctly and atomically. Important: The current system is not functioning correctly, and part of this job is to identify why (especially flash loans failing) and ensure everything works end-to-end ...

BUDGET; 150 CAD; OUTSOURCING; SEE CODE ATTACHED I’m looking for an experienced blockchain developer to review, debug, and fully fix an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets. Project Context This system is designed to interact with instant-resolution betting markets and prediction markets, where outcomes resolve in seconds. The strategy focuses on arbitrage opportunities where pricing inefficiencies allow for risk-minimized profit when executed correctly and atomically. ⚠️ Important: The current system is not functioning correctly, and part of this job is to identify why (especially flash loans failing) and ensure everything works end-to-en...

Project that includes database design, MS Access queries, Excel analytics, and Power BI visualizations. Scope: Database Design (No software) Design 5 relational tables (customers, sales, pr...customer Employee email username generator Monthly sales Highest average sales customer Employee commission (3.5%) Provide screenshots of results Excel Analytics Use provided dataset Calculate Altman Z-score (5 ratios) Create histogram (distress / grey / safe) Provide screenshots Power BI Create: Stacked column chart Pie chart Line chart (monthly trend) Provide screenshots Short theory answers Blockchain in accounting (150 words) AI impact (100 words) Generative AI task + evaluation Deliverables: Final Word document with all screenshots and answers PDF version Editable files (Access, Excel,...

I'm looking for a crypto influencer or YouTuber to create a dedicated promotional video for my Crypto meme project. Requirements: - Established crypto influencer with a substantial following - Experience in creating eng...crypto influencer or YouTuber to create a dedicated promotional video for my Crypto meme project. Requirements: - Established crypto influencer with a substantial following - Experience in creating engaging and informative dedicated videos - Ability to articulate project benefits clearly - High production quality is a plus Ideal Skills and Experience: - Strong background in cryptocurrency and blockchain - Prior experience with promotional content - Good video editing skills - Engaging on-camera presence Please provide samples of previous work and audienc...

...figures • Refine and optimize patent claims (primary focus) • Strengthen Section 101 eligibility (software/blockchain positioning) • Align and finalize specification (minor adjustments only) • Prepare all required filing documents (ADS, abstract, declarations, etc.) • File the application with the USPTO under Track One prioritized examination Invention: Blockchain-based access control system integrated with EV infrastructure, IoT devices, and smart contract authorization. Requirements (MANDATORY): • Direct experience with US patent drafting and USPTO filings • Strong understanding of patent claim structure and Section 101 issues • Experience with software/blockchain / IoT-related patents • Ability to w...

I'm seeking an experienced blockchain developer to help me develop a new public cryptocurrency using the Proof of Work (PoW) consensus mechanism. Key Requirements: - Design and implement a secure, scalable, and efficient PoW blockchain. - Develop the cryptocurrency's protocol and consensus rules. - Create necessary documentation and user guides. - Ensure robust security measures to prevent attacks. - Ideally, candidates should have: - Proven experience in blockchain development, particularly with PoW. - Strong understanding of cryptocurrency protocols. - Familiarity with cryptography and security practices. - Ability to deliver within budget constraints. Looking forward to your proposals! I want the cryptocurrency based on dtuff i traded for the f...

SEE CODE ATTACHED; I’m looking for an experienced blockchain developer to review, debug, and fully optimize an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets. --- ### **Project Context** This system is designed to interact with **instant-resolution betting markets** and **prediction markets**, where outcomes resolve in seconds. The strategy focuses on **arbitrage opportunities** where pricing inefficiencies allow for risk-minimized profit when executed correctly and atomically. --- ### **Scope of Work** * Review the entire codebase for bugs, vulnerabilities, and inefficiencies * Ensure all core features function correctly, especially: * Flash ...

VIEW CODE ATTACHED FOR MORE DETAILS: I’m looking for an experienced blockchain developer to review, debug, and fully optimize an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets. --- ### **Project Context** This system is designed to interact with **instant-resolution betting markets** and **prediction markets**, where outcomes resolve in seconds. The strategy focuses on **arbitrage opportunities** where pricing inefficiencies allow for risk-minimized profit when executed correctly and atomically. --- ### **Scope of Work** * Review the entire codebase for bugs, vulnerabilities, and inefficiencies * Ensure all core features function correctly, espec...

I’m looking for an experienced blockchain developer to review, debug, and fully optimize an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets. Project Context This system is designed to interact with instant-resolution betting markets and prediction markets, where outcomes resolve in seconds. Execution speed, atomicity, and reliability are critical. Target use cases include: In-play “instant” sports markets (e.g., next point, next play outcomes) Flash betting markets (micro-events resolving within seconds) Prediction market “resolution sniping” opportunities Scope of Work Review the entire codebase for bugs, vulnerabilities, ...

...unique LTC wallet addresses per transaction (via APIs like Tatum, BlockCypher, or Blockchair) Monitor blockchain for incoming LTC payments Automatically detect confirmations (configurable, e.g., 2–6 confirmations) Hold funds securely until both parties confirm trade completion Release funds to the seller/buyer wallet upon approval Ability to refund funds if trade is canceled API Integration: Tatum / BlockCypher / Blockchair (any one or combination) Use API for wallet generation, transaction tracking, and broadcasting Technical Requirements: Strong experience in JavaScript (Node.js preferred) Experience working with crypto APIs (Tatum, BlockCypher, Blockchair, etc.) Understanding of Litecoin blockchain, transactions, and confirmations Secure handling of private keys a...

...figures • Refine and optimize patent claims (primary focus) • Strengthen Section 101 eligibility (software/blockchain positioning) • Align and finalize specification (minor adjustments only) • Prepare all required filing documents (ADS, abstract, declarations, etc.) • File the application with the USPTO under Track One prioritized examination Invention: Blockchain-based access control system integrated with EV infrastructure, IoT devices, and smart contract authorization. Requirements (MANDATORY): • Direct experience with US patent drafting and USPTO filings • Strong understanding of patent claim structure and Section 101 issues • Experience with software / blockchain / IoT-related patents • Ability to...

I am building a blockchain analytics platform and looking for a creative UI/UX designer for it. 3 pages are already done on figma and Ill share it for you to go ahead. The page for the milestone is "Token Insights" and I put the details on notion which Ill share with you. Budget: $60 Timeline: 3 days If this works well we will go ahead to the next pages. Looking for a long term contributor.

...whole idea depends on data quality 5. UX / Product Designer Role: Design how discussions happen Structure: arguments voting discourse flow This is CRITICAL for you If this fails: your system becomes chaos Advanced / optional (but powerful) 6. NLP / Research Engineer Role: Work on: semantic clustering trend detection discourse analysis Makes your system “smart”, not just functional 7. Blockchain Developer (LATER, not now) Role: Implement: authentication decentralization logic Skills: Solidity Web3 Only hire AFTER prototype works 8. DevOps Engineer Role: Deployment Scaling servers CI/CD pipelines Needed when users grow 9. Cybersecurity Specialist (important for your concept) Role: Secure: user data system access potential attacks Especially impor...

I’m assembling a small, highly experienced team—people who have been building on blockchain for a decade or more—to take a new idea from concept to main-net-ready release. Because the core business model is still under wraps, I haven’t locked us into a single stack; if you have a deep track record with Ethereum, Hyperledger, Corda, or a comparable protocol and can prove it with code that’s running in production today, I want to talk. What I need from you • Strategic input during architecture and token-economic design • Clean, well-audited smart-contract or chaincode development (language and framework of your choice) • End-to-end deployment, testing, and security hardening • Clear documentation so future contributors can p...

...understanding of translation and digital marketing principles. The ability to manage deadlines and communicate effectively in a remote work environment is essential. This position is best suited for individuals in the early stages of their professional careers (approximately ages 22–30) who are seeking practical experience and long-term collaboration opportunities. Experience in technology, blockchain, or finance-related content is considered an advantage but is not required. This is a remote freelance role with the potential for ongoing engagement based on performance....

...fintech effort centred on digital assets—and I’m opening new, fully-remote, part-time positions for talented people who can strengthen our tech and marketing capabilities. What I need You may come from a pure tech background, a pure marketing background, or a blend of both; what matters is your ability to add value quickly. On the tech side, skills in software development, data science or blockchain engineering are all welcome. On the marketing side, I’m eager to see creative thinkers who can push digital-asset adoption. Every part-timer will help with hands-on product testing and the promotional work that follows, ensuring each release is rock-solid and gains traction fast. Why join • Work from anywhere—set your own hours • Contribute to...

Astrology Platform Development Document (Website + Mobile App – Full Technical & Functional Specification) ______________________________...Model • Per-minute consultation charges • Commission from astrologers • Paid reports • Ads & promotions ________________________________________ 18. Key Success Factors • Fast matching with astrologers • Accurate AI predictions • Seamless payment system • Strong mobile UX ________________________________________ 20. Future Enhancements • AR-based palm scanning • Voice-based astrology assistant • Blockchain-based horoscope records ________________________________________ Final Notes This platform must prioritize: • Scalability • Real-time performance • AI accuracy...

I want to launch a fully automated store inside Telegram where customers can browse my digital products, select what they want, pay with crypto, and receive their order instantly—no human intervention on my side. Core flow • Users start the bot, see the catalog, tap an item, confirm the price, and are presented with a wallet address or QR code. • Once the blockchain confirms payment, the bot releases the download link or license key and logs the sale. • An automatic message thanks them and shows their order number for support. Management tools I need • A simple owner dashboard (chat commands or basic web panel) so I can add / edit / remove products, set prices, and view orders. • Real-time status updates: pending, paid, fulfilled. &bu...

...governance ontop of retrainer plus paid hrs in zoommeeting option available for long term earnings. I need an experienced technical partner who can help me put order, speed and airtight security into a large-scale project that spans a full blockchain ecosystem—core chain, apps, games, smart-integrated services—plus an internal research arm and a robust training program. Right now my overriding priority is organisation: I want development to flow smoothly from idea to deployment without the usual bottlenecks. The very first area to tackle is the blockchain layer itself. We will anchor everything around a rock-solid implementation that supports smart contracts out of the box, then expand to companion apps and gaming modules. Security must exceed traditional b...

I’m putting together a lightweight, consortium-based blockchain layer to decentralize the control plane of a software-defined vehicular ad-hoc network (VANET) for ddos attack. The architecture must place enhanced security front and center—specifically, it has to guarantee data integrity, robust authentication and strong privacy protection for every message that moves between vehicles, roadside units and cloud edges. Because we are working with a consortium blockchain, I expect permissioned membership management, rapid consensus and low latency that fits the tight timing windows of vehicular communication. Open public chains are off the table; the solution has to remain controllable by a defined set of stakeholders such as OEMs, infrastructure operators and munici...

I need help to recover Bitcoin that went missing after a series of...Transaction IDs and all associated details so you can trace what happened on-chain, pinpoint where the funds are currently held, and propose a lawful path to retrieve them. If additional information—such as wallet addresses, mempool screenshots, or further blockchain explorer links—will speed up your investigation, let me know and I will provide it promptly. Please have a proven background in Bitcoin wallet recovery, blockchain forensics, cryptography, or similar disciplines. Familiarity with tools like Bitcoin Core, Electrum, and leading blockchain explorers will be essential. Let me know your approach, estimated timeline, and any specific data you’ll need up front so we can move q...

...Trust. Core Features: Wallet creation (secure generation of seed phrase / mnemonic) Wallet import (restore using seed phrase) Display wallet address and QR code Display on-chain balance (Ethereum network initially) Send and receive transactions Transaction history Technical Requirements: Must use for wallet generation, signing, and transaction handling Use Infura or Alchemy for blockchain RPC connectivity Non-custodial architecture (private keys generated and stored locally on device only) Secure storage implementation: iOS: Keychain Android: Keystore Private keys and seed phrases must never be stored in plain text Seed phrase must be displayed once during wallet creation with appropriate user confirmation Platform Requirements: Mobile application only: iOS (via Xcode) And...

I'm looking for an experienced blockchain developer to create a meme coin on the Ethereum platform. The primary goal of this coin is community building. Key features: - Staking capabilities - Governance voting - Token burns Ideal skills and experience: - Strong knowledge of Ethereum and smart contract development - Experience in creating tokens with staking and governance features - Familiarity with tokenomics and implementing token burn mechanisms Please provide examples of similar projects you have completed.

Project Title: Professional Customization of a Task Management System with USDT-TRC20 Integration ​Project Description: ​I am looking for an expert PHP/Full-Stack developer, specifically experienced with the ThinkPHP or Laravel frameworks, to customize and deploy a ready-made "Order Grabbing/Task Management" script. The project requirements include: ​Membershi...withdrawal processing for user-provided wallet addresses. ​Frontend Enhancements: Add floating/sticky buttons on the home page for direct "WhatsApp" and "Telegram" customer service redirection. ​Deployment: Full installation on a bulletproof offshore VPS, domain mapping, and ensuring the system is optimized for high traffic. ​Skills Required: PHP, ThinkPHP, MySQL, JavaScript (Vue.js preferred for H5), ...

I'm seeking a skilled developer to create a server application on Linux that enables the two-way conversion of M0 and M1 funds to USDT. The application will process .FIN files automatically through an API. Key requirements include: - Linux compatibility - Two-way conversion functionality only - API integration for .FIN file retrieval Ideal skills and experience: - Proficiency in... The application will process .FIN files automatically through an API. Key requirements include: - Linux compatibility - Two-way conversion functionality only - API integration for .FIN file retrieval Ideal skills and experience: - Proficiency in server application development - Experience with financial data processing - Strong API integration skills - Familiarity with cryptocurrency and blockchain...

We need an e...UI/UX design sense • Experience with fintech or marketplace platforms preferred • Ability to troubleshoot AI-generated code and course-correct efficiently • Knowledge of supporting tools: Supabase, Vercel/Netlify, Clerk/Auth Deliverables: • Two complete, functional user flows (not mockups) • Polished, credible UI that looks professional to early users • Simulated tokenization logic (no live blockchain required) • User authentication and simulated KYC verification • Portfolio dashboard and basic secondary market interface • Live deployment at shareable URL • Clean codebase handover for future iterations Timeline: 1-2 weeks for demo-ready prototype This is an early-stage concept validation project where speed and visu...

Solana Copy Trading Platform Development I want to create a web platform similar to Mirrorlink, focusing on a clean, modern copy trading dashboard using Solana. The main goal is to enable users to connect their Solana wallet to automatically copy trades from selected leader wallets, Telegram channels or successful traders. Scope of work - Develop frontend with a dark mod...featuring active copies, real-time PNL, trade log, and portfolio overview. - Ensure responsive design for mobile compatibility. References - Similar platform: Additional information The frontend should closely resemble Mirrorlink in terms of look and feel, with a focus on clean and modern design. Developer expertise Front-end development, Backend, Integrating wallets, Blockchain development, APIs.

I’m ready to turn a set of bite-sized educational topics into eye-catching, AI-driven animations that feel native to TikTok, Reels, and YouTube Shorts. The mission is simple: make complex ideas instantly understandable and irresistibly shareable. Here’s what I already have in place: • Clear lesson outlines for each short (most revolve around blockchain fundamentals and crypto-trading concepts). • Sample reference clips that capture the pacing and tone I’m after. • Access to RunwayML, Midjourney, and a few subscription-based sound-effect libraries, should you need them. What I need from you: • End-to-end animation and post-production for each 30–60 second short, delivered in 9:16 and 16:9 formats. • Seamless integration of typo...

I'm in the early stages of developing a memecoin project and need help with concept development and securing funding. ...in the early stages of developing a memecoin project and need help with concept development and securing funding. Key tasks include: - Developing a unique and engaging memecoin concept - Designing a sustainable and attractive tokenomics model - Securing funding through non-equity means (investors, crowdfunding, grants) Ideal skills and experience: - Strong background in cryptocurrency and blockchain - Experience in tokenomics and smart contract development - Proven track record in securing funding for crypto projects - Creative thinker with a passion for memecoins I need someone who can help me shape my idea and connect me with the necessary funds to br...

At , we have been dedicated to crafting innovative digital solutions since 1998, leveraging cutting-edge technologies like AI and Blockchain to drive success for our clients across the United States. As we continue to expand our services and enhance our offerings, we find ourselves needing support in managing our increasing customer interactions efficiently within the U.S. market. Our goal is to implement effective business process outsourcing (BPO) projects, particularly focusing on top-notch call center services that can help us maintain our high standards of customer satisfaction for clients throughout the United States. We believe that by partnering with the right U.S.-based service provider, we can not only streamline our operations but also elevate our client experience to

I’m expanding our engineering team at LaRevela, the Web3 identity and visitor-intelligence platform for eCommerce, and I need a skilled technical recruiter who is already on the ground in China. Your mission is to identify and secure a mid-level Full-Stack Blockchain Developer who excels at full-stack development and seamless Web3 integration. What the ideal hire must bring: solid, hands-on JavaScript, Python, and Solidity experience, plus a track record of shipping blockchain-enabled products that actually reach users. You’ll handle the entire funnel—sourcing across local and remote talent pools, screening for technical depth, coordinating interviews, and guiding compensation conversations in line with our global structure. Deliverables I expect from you:...

...effects (optional) TECHNICAL PREFERENCES Open to suggestions, but please specify your approach. Preferred: • Tauri (preferred – lightweight) • Electron (acceptable if properly optimised) • Native C++ / C# (premium option) Avoid heavy game engines (Unity/Unreal) unless strongly justified. SCOPE LIMITATIONS • No cloud services or backend • No AI/LLM integration • No login/account system • No blockchain or token integration in this phase • Must remain a lightweight desktop companion application DELIVERABLES • Working Windows desktop application • macOS version (if included) • Clean, well-structured and commented source code • Steam-ready build package • README including: o architecture overview o animation ...

...in-depth research on a selected technology topic, a formal written report (10–15 pages), and a PowerPoint presentation to be delivered on the submission date. Topic The freelancer will research and write about one of the following topics IN Saudi Arabia (to be agreed upon): • Data Mining & Big Data • E-Government • E-Business & E-Commerce • Intranet & Extranet • Collaboration & Social Business • Blockchain Technologies (Cryptocurrencies, Distributed Ledgers, etc.) • Cybersecurity • Mobile and Cloud Computing • Fintech (Proptech, Insurtech, Regtech, etc.) Deliverables 1. Written Report (10–15 Pages) The report must follow the structure below: • Title Page – Project title, student name(s), computer...

...hands-on experience working with blockchain projects. You'll be helping build and deploy smart contracts, making sure everything is secure, efficient, and works smoothly. Ideally, you're comfortable working with Solidity and have experience with tools like Hardhat or Truffle, along with Web3 libraries. It's important that you understand how blockchain systems work and can spot potential security issues before they become problems. I'm looking for someone who's reliable, communicates well, and can take ownership of their work. If you've worked on DeFi, NFTs, or similar projects before, that's a big plus, feel free to share anything you've built. If this sounds like you, I'd love to connect and hear more about your experience. ...

I’m looking for an experienced blockchain developer to build a smart contract for a decentralized finance (DeFi) application. The platform will focus on staking and reward distribution. The main objective is to create a secure, efficient, and scalable contract that allows users to stake tokens and earn rewards over time. Key responsibilities include developing staking mechanisms, implementing reward calculations, and optimizing the contract for low gas usage. You will also handle testing, debugging, and deployment. The ideal candidate should have strong experience in smart contract development (such as Solidity) and a good understanding of DeFi staking models. Knowledge of blockchain security best practices is essential. Bonus skills include experience with Layer 2 ...

I need an experienced developer to create a smart contract on the Solana blockchain for token creation. Requirements: - Proficiency in Solana and smart contract development - Experience with token creation - Strong understanding of blockchain technology Ideal Skills: - Expertise in Rust or C (Solana programming languages) - Previous projects on Solana - Problem-solving and debugging skills Also to add in tax free and return coin to wallett Please provide examples of previous work and relevant experience.

...approve or reject any pending deposit/withdraw request, modify wallet addresses if needed, and trigger manual payouts. Every sensitive key or credential has to stay on my servers; the entire source code, scripts, database schema and deployment notes must be delivered so I retain 100 % ownership and control. Tech expectations • Backend: .NET 6+ (MVC or minimal APIs) with Entity Framework • Blockchain layer: Web3 libraries for BEP20 (e.g., Nethereum) • Database: MSSQL or PostgreSQL—your call, but include migrations • Front-end: Razor pages or React + ASP.NET Core, responsive on mobile Acceptance criteria 1. User registration and sponsor linking proven on a testnet. 2. Deposit, withdraw and transfer functions succeed on-chain and reflect in ...

...approve or reject any pending deposit/withdraw request, modify wallet addresses if needed, and trigger manual payouts. Every sensitive key or credential has to stay on my servers; the entire source code, scripts, database schema and deployment notes must be delivered so I retain 100 % ownership and control. Tech expectations • Backend: .NET 6+ (MVC or minimal APIs) with Entity Framework • Blockchain layer: Web3 libraries for BEP20 (e.g., Nethereum) • Database: MSSQL or PostgreSQL—your call, but include migrations • Front-end: Razor pages or React + ASP.NET Core, responsive on mobile Acceptance criteria 1. User registration and sponsor linking proven on a testnet. 2. Deposit, withdraw and transfer functions succeed on-chain and reflect in ...

I'm seeking a skilled blockchain developer to assist in the development of a utility governance token project on the Polygon network. The project is currently in the development phase and requires expertise in the following areas: Smart Contract Coding: Develop robust and secure smart contracts for the token. Token Distribution Mechanism: Design and implement a fair and efficient token distribution mechanism. Security Audit: Conduct a comprehensive security audit to identify and mitigate potential vulnerabilities. Ideal Skills and Experience: - Proficiency in Solidity and experience with the Polygon network - Strong background in blockchain security and smart contract audits - Experience in designing tokenomics and distribution models Your expertise will be crucial ...

I'm seeking a skilled blockchain developer to assist in the development of a utility governance token project on the Polygon network. The project is currently in the development phase and requires expertise in the following areas: Smart Contract Coding: Develop robust and secure smart contracts for the token. Token Distribution Mechanism: Design and implement a fair and efficient token distribution mechanism. Security Audit: Conduct a comprehensive security audit to identify and mitigate potential vulnerabilities. Ideal Skills and Experience: - Proficiency in Solidity and experience with the Polygon network - Strong background in blockchain security and smart contract audits - Experience in designing tokenomics and distribution models Your expertise will be crucial ...

I'm looking for an experienced blockchain developer to create a smart contract for a DeFi application. The DApp will focus on staking and yield farming. Key Requirements: - Develop a secure and efficient smart contract - Implement staking and yield farming features - Ensure scalability and security Ideal Skills: - Expertise in smart contract development - Experience with DeFi protocols - Strong knowledge of blockchain security practices Please provide examples of previous work and relevant qualifications.

...monthly retainer): • Backlink acquisition: 15–30+ high-quality, dofollow, relevant editorial links per month (guest posts, niche edits, expert roundups, HARO/PR opportunities, broken link building). • Profile creation: Strategic creation of high-authority web 2.0 profiles, business directories, social signals, and relevant platform listings (focus on crypto/blockchain/fintech sites). • All links must come from relevant niches (crypto, blockchain, DeFi, algorithmic trading, fintech, trading software, finance). Minimum DA/DR 40+ preferred; no low-quality directories or spam. • Full transparency: Provide Ahrefs/Semrush/Majestic reports before and after each batch. • Strict white-hat only – no PBNs, no link farms, no black-hat tactics ...