Solidity jobs

...custom approach if you believe a tweak would be safer or more gas-efficient). • Every critical action needs event logging so the front-end can surface real-time status updates to users. • Multi-signature approval must gate high-value actions such as owner transfers or contract upgrades. A simple n-of-m schema is fine as long as signers can be updated securely. • Code should be written in Solidity, cleanly commented, and optimised for low gas fees. • Please deliver deployment scripts, a brief README, and unit tests (Hardhat or Truffle preferred) so I can replicate the results on testnet before going live. • Final step: verify the contract on BSCScan and supply the verification link. If you have prior examples of audited or publicly deployed BSC ...

I need a complete, production-ready Solidity script that mints a fully transferable Flash USDT token on BOTH Ethereum (ERC-20) and Tron (TRC-20). The contracts must deploy cleanly through Remix (for Ethereum) and the equivalent Tron IDE or Tron-Web flow, run for at least two to three months before self-destructing or freezing, and produce 100 % confirmed transactions that reach any standard wallet or major exchange without flagging. Core expectations • One Solidity file per chain, clearly commented, that compiles under the latest stable compiler versions. • Functions for minting, burning, and standard ERC-20/TRC-20 transfers. • Built-in logic that preserves liquidity long enough for a 2–3 month lifecycle, after which tokens become inert. • G...

I need an experienced blockchain developer to create a new cryptocurrency. Key Requirements: - Develop a secure and scalable cryptocurrency - Expertise in blockchain techno...blockchain developer to create a new cryptocurrency. Key Requirements: - Develop a secure and scalable cryptocurrency - Expertise in blockchain technology and cryptocurrency protocols - Knowledge of tokenomics and market trends - Experience with smart contracts and blockchain integration - Ability to provide ongoing support and updates Ideal Skills: - Proficiency in programming languages like Solidity, Python, or JavaScript - Strong understanding of cryptography and decentralized networks - Previous experience in launching successful cryptocurrencies Please provide examples of past work and relevant quali...

...dot, name, role, status text, current task - Status bar: Status text left, agent count right - Theme system: Full dark (#1a1a2e) and light (#f5f5f5) themes with 20+ color tokens, recursive widget theming - SimBackend: 6 agents with roles (diagnostic, repair, build, review, test, optimize), intent detection routing user input to agents, language detection (Python/Rust/Go/JS/Java/Solidity/C++), integration with LanguageEngine, CompressionEngine, HardwareEngine - Wallet: Connect dialog with 0x address validation, Arbitrum One network, 25.0 voucher balance on connect - Settings: Read-only info dialog - Headless test mode: 45+ tests runnable with --test flag SCOPE OF WORK — What needs finishing ───────────────────────────────────── The developer...

I need a complete, production-ready mobile application (iOS and Android) that lets users hold Rupiah-based crypto assets, send and receive them...executes and settles on-chain, returning final TxID • Merchant POS screen that generates dynamic invoices (QR / NFC) and records payment status in real time • Clean, commented source code plus build instructions • API or SDK documentation for any server-side components and a brief security report outlining the measures implemented If you already have experience with custodial-optional wallets, Solidity/BEP-20 bridges, or retail crypto POS systems, that will save us both time. Please outline the stack you intend to use, reference at least one live wallet you have shipped, and give me a realistic timeline from kickoff t...

I’m ready to give a distinctive visual identity and need a modern logo built around bold, vibrant colours. The mark should include a specific icon that instantly conveys the idea of a “permanent brand wall” (think solidity, reliability and a touch of creativity). What I need from you: • A concept phase with several icon sketches that explore this theme. • Finalised full-colour logo locked in vector format (AI, SVG, EPS) plus high-res PNG/JPG. • A black-and-white version, a favicon crop and the editable source files so I can scale or tweak the artwork later. I’ll give timely feedback on each iteration and approve the direction before you polish the final artwork. If you can balance modern aesthetics with eye-catching vibrancy, let&r...

Senior Solidity/DeFi Engineer Needed — Autonomous ETH/USDC Flash-Loan Arbitrage Bot Looking for an experienced Solidity/DeFi developer to build an autonomous ETH/USDC flash-loan arbitrage bot using protocols such as Aave and Uniswap. Requirements: * Solidity + Python/Node.js * Flash loans and DEX arbitrage * Atomic transactions * MEV/slippage protection * Gas optimization * Ethereum mainnet infrastructure * Web dashboard for monitoring P/L and transactions * Strong smart-contract security experience The system should identify legitimate price inefficiencies, simulate trades, execute profitable opportunities, and automatically repay flash loans. Important: Security-focused project. No unauthorized exploitation, oracle manipulation, protocol bypasses, or theft...

I need an experienced AI coding agent specialist and Web3 developer to complete an existing multi-chain DEX arbitrage bot. The project is already partially built. I have existing Node.js/JavaScript code, Solidity smart contracts, flash-loan logic, scanners, a detailed technical architecture, research, and GitHub repositories that can be used as references. The system will monitor multiple DEXs across EVM chains, maintain local pool state, detect and simulate price movements, identify profitable same-chain arbitrage opportunities, calculate optimal trade size and net profit after all costs, use flash loans where appropriate, and execute trades through smart contracts with profit protection. The system also needs shadow mode, automated testing, latency/performance tracking, opportu...

...integrations. The token should be deployed on a suitable blockchain such as BNB Chain, Ethereum or another recommended EVM chain. The developer should handle smart-contract development, frontend integration, testing on testnet, bug fixing and final mainnet deployment. The website must be responsive and optimized for desktop and mobile. We are looking for someone who has practical experience with Solidity, React/, , MetaMask/WalletConnect and smart-contract deployment. Deliverables Token + Smart Contract Web3 Website Tokenomics Whitepaper Wallet Connect Basic User Dashboard Blockchain Integration Testnet Testing Mainnet Deployment Complete Source Code Basic Documentation Please share your previous Web3/Token projects, estimated timeline, and fixed price in your proposal

Solidity / Blockchain Developer Needed – $500 Budget I’m looking for an experienced Solidity or blockchain developer to help identify a genuine bug or improvement in an established open-source project. Please submit your proposal using the exact format below, as I need to review it for an open-source project opportunity. 1. Repository * GitHub repository link: * Project name: * Relevant issue, PR, or code link: 2. Proposed Change * What specific bug or problem did you identify? * Why does it matter? * What is your proposed fix? 3. Blockers (2–4) For each blocker, explain: * What could go wrong? * How would you test it? Provide a specific test or command. 4. Offline Build * Can the repository build and run its tests at a pinned commit without netwo...

Solidity / Blockchain Developer Needed – $500 Budget I’m looking for an experienced Solidity or blockchain developer to help identify a genuine bug or improvement in an established open-source project. Please submit your proposal using the exact format below, as I need to review it for an open-source project opportunity. 1. Repository * GitHub repository link: * Project name: * Relevant issue, PR, or code link: 2. Proposed Change * What specific bug or problem did you identify? * Why does it matter? * What is your proposed fix? 3. Blockers (2–4) For each blocker, explain: * What could go wrong? * How would you test it? Provide a specific test or command. 4. Offline Build * Can the repository build and run its tests at a pinned commit without netwo...

...disable mint/burn or staking if I later decide to go “transfer-only.” I’m still undecided about whether I’ll deploy it myself or have you push it on-chain, so include a short, step-by-step Remix deployment guide and flag any additional tools I might need (TronLink, TronGrid, etc.). No front-end is necessary; everything will be verified directly from the contract functions. Deliverables • Solidity source file(s) compatible with Remix • Inline comments explaining key sections • Quick README covering: compiler version, library imports (e.g., OpenZeppelin), and deployment/verification steps • Demo addresses or test-net evidence showing transfer, mint, burn, and staking all executing successfully I’ll test by compiling in...

I’m refreshing Cairnline Advisory Ltd. with a clean, contemporary mark that feels corporate rather than recreational. The logo must centre on a subtle cairn-inspired symbol—think balanced, abstract forms that hint at judgment, navigation and resilience—without drifting into obvious “outdoor adventure” territory. Above all, the look should project credibility and solidity. Typography needs to stay in the modern sans-serif family; Avenir, Montserrat, Source Sans or Inter all fit the brief. Please keep the company name locked up with the symbol; no taglines or extra graphics. Muted, professional colourways (cool greys, restrained earth tones, or similar) will keep the palette calm and authoritative. Deliverables • Primary logo lock-up (symbol + &...

...product and want an experienced developer to take the technical lead from architecture through deployment. The overall concept is clear, yet the exact chain, framework, and contract structure are still open for discussion—your expertise will help drive those choices. Scope • Translate the product idea into a technical roadmap and milestone plan • Design and build production-ready smart contracts (Solidity or comparable language) • Connect the contracts to a lightweight dApp front-end and back-end API • Set up reliable test, audit, and deployment pipelines so everything can launch to mainnet without surprises Acceptance Criteria • All contracts compile, pass unit and integration tests, and achieve ≥90 % coverage • Code is verified o...

...frontend demo, or mock blockchain**. I am looking for a technically serious blockchain infrastructure that can eventually support real users, developers, applications, payments and an expanding validator ecosystem. Please read the complete requirements before applying. ### 1. Layer-1 Blockchain I need an independent Layer-1 blockchain with: * Native coin: **SHZ** * EVM-compatible architecture * Solidity smart-contract compatibility * Fast block production * Fast/deterministic finality * Low and predictable transaction fees * High throughput with independently verifiable benchmarks * Reliable RPC infrastructure * Full nodes * Validator infrastructure * Staking and delegation * Validator monitoring * Network monitoring and alerts * Backup and disaster recovery * Secure protocol...

...functions I must have • Token creation & on-chain management: One-click deploy, adjust supply, pause/restore, and burn. • Wallet integration: seamless send/receive in MetaMask, Trust Wallet, Coinbase Wallet, and Binance Wallet without extra configuration. • Transaction tracking: real-time status, confirmations, and expiry countdown visible in the UI. Technical freedom is yours—Solidity (or Tron’s Solidity-like variant), JavaScript/TypeScript, Python, Node.js or any stack you prefer—so long as you deliver an executable for Windows plus a secure web portal that I can host privately. API keys, RPC endpoints, and TRON node details will be provided once we agree on the flow. Acceptance criteria 1. I can deploy a flash token to the ...

...generation) and expect you to orchestrate these agents rather than rely on traditional manual loops. Formal verification, differential fuzzing and static-analysis gates need to run automatically on every commit. What you will hand over 1. A modular routing engine that detects the cheapest path across Base, Solana and Sui in real time and executes atomically. 2. Smart-contract libraries (Move & Solidity) formally verified, with proofs or audit artefacts. 3. A biometric onboarding micro-service that speaks WebAuthn and mints ERC-4337 accounts on demand. 4. CEN/XFS middleware service bridging hardware events to the routing engine. 5. CI/CD pipeline scripts plus IaC for rapid redeploy to our Kubernetes cluster. 6. Complete test coverage: unit, integration, property-b...

Someine that can create or generate FL Coins USDT with software or online tools to send .. Seasoned crypto software developer with deep expertise in blockchain architecture, smart contract development, DeFi protocols, and secure...that can create or generate FL Coins USDT with software or online tools to send .. Seasoned crypto software developer with deep expertise in blockchain architecture, smart contract development, DeFi protocols, and secure Web3 infrastructure. Skilled in building scalable decentralized applications (dApps), integrating multi-chain solutions, and developing high-performance backend systems using Solidity, Rust, Go, and TypeScript. Strong focus on security, protocol optimization, and delivering production-ready blockchain solutions for startups and enterprise ...

...comprehensive unit, integration, and edge-case tests. Identify vulnerabilities, logic errors, and potential attack vectors. Prepare contracts and deployment scripts for testnet and production environments. Document technical decisions, contract interfaces, and deployment procedures. Communicate progress, risks, and proposed solutions clearly. Preferred Experience Strong professional experience with Solidity and EVM-compatible networks. Experience developing and testing production-quality smart contracts. Practical knowledge of Foundry, Hardhat, OpenZeppelin, , viem, or similar tools. Experience with attestations, identity systems, soulbound tokens, credentials, reputation systems, or NFTs. Strong understanding of access control, signature verification, replay protection...

Project overview Web development / New project Expected to be completed by Sep 05, 2026 Request details Project Overview I'm looking for an experienced Solidity/Web3 developer who can build a smart contract that integrates with Aave V3 and can receive a flash loan of USDT liquidity. The goal is to have the entire process execute atomically in one blockchain transaction. Required Logic The smart contract should: Initiate/receive a USDT flash loan from Aave V3. Receive the flash-loaned USDT into my smart contract. Transfer the borrowed USDT from the smart contract to another wallet that I control. Allow me to perform my required strategy/work with those funds. Have the necessary logic to return the required principal + Aave flash-loan fee back to the smart contract within th...

...an MVP running on a standard EVM stack—Solidity contracts, a React.js interface, and a small Node/Express backend—but it needs a seasoned full-stack blockchain developer to turn it into a production-ready dApp. What you’ll walk into • An existing GitHub repo with a functional proof-of-concept. • React is baked in (the chosen framework); designs are still coming together, so some screens will arrive progressively. • Solidity contracts compile and deploy, but they still need a proper security pass, gas-cost tuning, and upgradeability considerations. • Only WalletConnect is required for the first release, yet the codebase should remain flexible enough to add MetaMask or Coinbase Wallet later. First milestones • Finalise a...

...route each payment and enrollment request to an admin dashboard where staff can verify KYC details, approve or reject registrations and manage fee settlements • store all critical actions in Solidity smart contracts, fully tested and verified on Etherscan, with events that keep the front-end in sync • give admins rich analytics—total fees collected, outstanding balances, course capacity, student status—through a clean web dashboard Tech stack is your choice so long as the front-end is modern (React, or similar) and speaks to the contracts via or web3.js. I’ll need: 1. Audited Solidity contracts, deployment scripts (Hardhat preferred) and unit tests 2. Responsive UI/UX that covers student, instructor and admin views 3. Clear documen...

...sessions, completing reflection exercises). Only the reward mechanism is required; no on-chain attendance tracking or complex token issuance logic beyond minting and distributing the tokens. Key expectations & deliverables 1. Feature list with brief description of how each item will work. 2. Technical proposal (front-end, back-end, smart-contract stack; common choices might be React, Node, Solidity, or a low-code Web3 platform—tell me what you’d use and why). 3. Timeline broken into milestones. 4. Cost per milestone and total project price. 5. Post-launch hand-off plan including all documentation. Acceptance criteria • Students can register, log in, and book sessions end-to-end. • Smart contract deploys on a public testnet and issues rewa...

...understanding of Bitcoin, cryptocurrency and mining * Knowledge of PoW and PoS * Understanding of Smart Contracts * Familiarity with Hyperledger * Understanding of IPFS and NFTs * Ability to explain technical concepts clearly to undergraduate students * Good classroom communication and presentation skills * Prior academic or corporate training experience is preferred Experience with **Ethereum, Solidity, Hyperledger Fabric, Web3 or blockchain-based applications** will be an advantage. ### Student Activities The trainer will also guide students through curriculum-related activities such as: * Case study on blockchain mining, cryptocurrency and mining pools * Discussion on blockchain integrity * Student presentation on blockchain applications and digital asset management ### P...

...a complete blockchain-powered backend whose main role is to run and interact with smart contracts. Your task is to design, code, test, and deploy those contracts and then expose their functions through a clean API that my front-end team can consume. The choice of chain and contract language is open; whether you prefer Ethereum, Hyperledger, or Binance Smart Chain, and whether you work best in Solidity, Rust, or Vyper, I am happy to follow your technical lead as long as the solution is secure and maintainable. Security, gas or resource efficiency, and clear documentation matter most to me. The API should support standard CRUD-style interactions with contract state and include basic authentication so we can drop it straight into our staging environment. Deliverables • Full...

...config | MODULE 4: Alt-UTXO Adapters| Built | Configure RPC endpoints | MODULE 5: EVM PoW Deploy | Built | Deploy to ETHW / Syscoin testnets | MODULE 6: Monero Adapter| Built | Connect to `monero-wallet-rpc` | MODULE 7: Beldex Adapter | Built | Connect to `beldexd` | MODULE 8: Frontend Bridge| Built | Inject into HTML UI & test | Detailed Scope of Work (The 8 Modules) MODULE 1: Subsidy Pool (Solidity) Needs deployment via Hardhat/Foundry and integration testing with the relayer reimbursement logic. MODULE 2 Job 2: UTXO Harness (Rust) Needs live Testnet execution. Must handle real faucet funding, broadcast actual P2WSH HTLC locks, and execute preimage claims on BTC/LTC Testnet. MODULE 3: Relayer Daemon (Rust) Needs environment configuration, live Chain 210 event monitori...

...TRON code-base and CLONE it into a clean, standalone network that runs on just three validator nodes, using Delegated Proof of Stake (DPoS) as its consensus. The goal is to have a lightweight but fully functional chain that preserves TRON’s performance advantages while letting me control every aspect of the environment. Key capabilities I want built in from day one are smart-contract execution (Solidity-compatible), on-chain token creation/management, and a governance layer so stakeholders can vote on upgrades or parameter changes. I do not have a rigid block-time requirement; please recommend the most practical interval for a three-node DPoS setup and be ready to justify the choice from a throughput and finality standpoint. I expect the work to cover: • Clone the ...

...liquidity through basic liquidity pools. A clean and responsive frontend DApp is required with wallet connection, token creation, token listings, swapping, liquidity management, and transaction status. The frontend can be built with React or , using Solidity for smart contracts and or viem for Web3 integration. This is an MVP/testnet project, so the focus is on having everything functional, stable, and easy to use rather than building a large production-level platform. The developer should have solid experience with Solidity, EVM-compatible chains, smart contracts, React/, Web3 integration, and DEX/AMM development. The complete project should be delivered within one week, including deployment, testing, bug fixing, source code, and basic setup documentation. Please s...

...application that works seamlessly across both Solana and EVM chains. Core scope • Wire Codex outputs into a clean, well-structured repository, refining or rewriting code where AI falls short. • Build and connect key DeFi modules—wallet services, decentralized exchange interactions, trading terminals, and launchpad functionality—so they operate reliably on Solana (Rust/Anchor) and on EVM networks (Solidity/Hardhat). • Handle cross-chain logic, RPC endpoints, and security hardening, ensuring transactions, signatures, and token standards behave identically on both ecosystems. • Integrate front-end components (React/, , ) with the contract layer and automate tests and deployments (CI/CD, Foundry, Anchor test suite). I’ll supply: &...

I’m launching a DeFi application on the Ethereum network and need a developer who can take full ownership of the smart-contract layer. The core goal is to design, code, and deploy Solidity contracts that power the protocol’s functionality while keeping security and gas efficiency front of mind. Key expectations • Architect and write production-ready smart contracts for a DeFi application (Solidity on Ethereum). • Create migration/deployment scripts and configure Hardhat or Truffle for local and testnet environments. • Build a concise test suite (Mocha/Chai or similar) covering edge cases, exploits, and upgrade paths. • Optimise gas usage and follow current best practices for re-entrancy guards, overflow checks, and access control (Open...

...identity is verified, the verified KYC data can be reused across multiple banks, reducing duplicate verification, saving time, and lowering operational costs. A credit assessment module analyzes the customer's financial information and credit history to support fair and faster credit allocation. Technologies Used: Frontend: HTML, CSS, JavaScript Backend: Java, Spring Boot Blockchain: Ethereum, Solidity, Web3j Database: MySQL Key Features: Secure and decentralized KYC storage Tamper-proof customer records using blockchain Smart contract-based KYC verification Faster and transparent loan approval process Reduced fraud and duplicate KYC submissions Improved customer trust and data privacy Outcome: This project enhances the security, transparency, and efficiency of banking op...

## Build an Advanced DeFi Flash Loan Arbitrage Bot for BSC I’m looking for an experienced Solidity / DeFi developer to build a high-performance **Flash Loan Arbitrage Bot** for Binance Smart Chain (BSC). I have already completed extensive research and reverse engineering of an existing deployed smart contract to understand its architecture and transaction flow. I also have live on-chain transaction history and contract interactions for reference. The goal is **not** to clone or copy the existing contract, but to develop a **new implementation** with similar trading logic, improved architecture, better gas optimisation, and stronger security. ### Reference repository ### Available references * Decoded contract source for research * Dedaub

...and broadcasting the low-level transactions (RLP encoding, nonce and gas management, offline signing, etc.) that will deploy and interact with the contract. • A bespoke token smart contract – the core logic is outlined but still flexible; I want to be certain the code is solid, secure and optimised before it goes live. Here’s what I’m expecting from our collaboration: 1. Review or write the Solidity for this custom token contract, compile it and demonstrate successful deployment on a public testnet. 2. Produce example raw transactions for key actions (deployment, mint/transfer or any additional functions we agree on). Scripts can be in Hardhat, Foundry, or even pure web3—whichever you’re fastest with. 3. Walk me through each step so I un...

...manufacturing industry, please try the following adjustments: De-clutter the design: The current font feels a bit too much like a law firm or a magazine. Please try removing the serifs and switch to a sans-serif font. Alternatively, keep minimal serifs so the lines look as sharp and clean as a mechanical cut. Add visual weight: The current strokes are a bit thin. Please thicken them to convey a sense of solidity and stability, much like metal parts. Structural integration: The 'H' and 'F' are currently a bit separated. Please try making them share the middle vertical line, or create a geometric connection between the right side of the 'H' and the left side of the 'F'. This would give a sense of 'integrated manufacturing'. Cham...

# Build an Advanced DeFi Flash Loan Arbitrage Bot (BSC) ## Project Overview I'm looking for an experienced Solidity/DeFi developer to build a high-performance **Flash Loan Arbitrage Bot** for Binance Smart Chain (BSC). I have already completed extensive research and reverse engineering of an existing deployed smart contract to understand its architecture and transaction flow. I also have live on-chain transaction history and contract interactions for reference. The objective is **not to clone or copy** an existing contract, but to develop a new implementation with similar trading logic, improved architecture, better gas optimization, and enhanced security. ## Available References I will provide: * Decoded contract source for research * Dedaub analysis * Live deployed con...

... Build and maintain the backend API orchestrator (Express/TypeScript) to manage the 7-stage payment pipeline Write secure, well-tested, and documented code for our core infrastructure Collaborate with the team on architecture decisions and technical roadmap REQUIREMENTS 3+ years of software development experience, with at least 2 years of hands-on blockchain development Deep expertise in Solidity and experience with EVM-compatible chains (Ethereum, Base, Arbitrum, Polygon) Strong proficiency in TypeScript/JavaScript for backend development (Node.js) Experience developing and deploying smart contracts in production environments Understanding of ZKPs (Zero-Knowledge Proofs) and their application in privacy-preserving protocols Experience with cross-chain messaging protocol...

...We need someone who can independently manage the complete recruitment lifecycle—from sourcing top talent to coordinating interviews and helping us hire the right candidates. What You'll Be Hiring For We are actively hiring: • Full Stack Developers • Frontend Developers (React, , Vue.js, Angular) • Backend Developers (Node.js, NestJS, Python, Django, .NET, Java) • Blockchain Developers (Solidity, Ethereum, Polygon, Solana, Web3) • AI & Data Engineers (Preferred) • DevOps Engineers (Preferred) Responsibilities • Manage the complete recruitment process from start to finish. • Create and optimize job postings on Upwork and other relevant platforms. • Source high-quality candidates using LinkedIn, GitHub, Upwork, and other ch...

Technical Co-Founder (Lead Web3 Developer) What You Will Do: Setup PostgreSQL/Node.js backend, DB schema, and Web of Trust invitation logic. Develop and deploy Web3 authentication (MetaMask/WalletConnect) and SBT (Soulbound Token) Citizen IDs. Write, test, and deploy Solidity/EVM smart contracts for our Quadratic Voting and Multi-sig Guardrail systems. Requirements: Strong experience in Full-Stack development (, Node.js, PostgreSQL). Proven experience with Web3 libraries (, viem) and Smart Contracts (Solidity/Foundry). Must be based in Bangladesh for active collaboration. POSITION 2: Lead UI/UX Designer (Figma) What You Will Do: Design a clean, minimalist, and highly professional 2D Web3 Dashboard on Figma. Create logical UI flows for wallet connection, voter portals,...

...for? The entire blueprint, architecture, and structural file for the project are completely ready. Right now, I need a visionary Technical Co-founder / Lead Developer from Bangladesh who can stand shoulder-to-shoulder with me to bring this vision to life through coding and infrastructure. What you should bring to the table: Experience or a deep interest in Web3, Blockchain, Smart Contracts (Solidity/Rust), and DAO architecture. Cybersecurity / Ethical Hacking Skills: Since this is a human-driven economy with real-world monetary value, you must have the capability to design secure systems, prevent vulnerabilities, and mitigate hacking/exploit risks within the game environment. The mindset to build a large-scale platform completely from scratch. Most importantly—the driv...

...What am I looking for? The entire blueprint, architecture, and structural file for the project are completely ready. Right now, I need a visionary Technical Co-founder / Lead Developer who can stand shoulder-to-shoulder with me to bring this vision to life through coding and infrastructure. What you should bring to the table: Experience or a deep interest in Web3, Blockchain, Smart Contracts (Solidity/Rust), and DAO architecture. The mindset to build a large-scale platform completely from scratch. Most importantly—the drive and leadership qualities to turn an entirely new concept into reality. The Setup: Since this is the beginning of a massive dream, we will initially start on a partnership/equity (Equity/Token Share) basis. If you feel you are ready to take on this cha...

...What am I looking for? The entire blueprint, architecture, and structural file for the project are completely ready. Right now, I need a visionary Technical Co-founder / Lead Developer who can stand shoulder-to-shoulder with me to bring this vision to life through coding and infrastructure. What you should bring to the table: Experience or a deep interest in Web3, Blockchain, Smart Contracts (Solidity/Rust), and DAO architecture. The mindset to build a large-scale platform completely from scratch. Most importantly—the drive and leadership qualities to turn an entirely new concept into reality. The Setup: Since this is the beginning of a massive dream, we will initially start on a partnership/equity (Equity/Token Share) basis. If you feel you are ready to take on this challe...

...infrastructure; paid APIs; AI-model usage; paid third-party software; domain names; email services; payment-provider fees; hardware manufacturing; physical IoT devices; robotics equipment; long-term maintenance; post-warranty support. Mandatory Requirements Applicants must demonstrate: proven experience with blockchain projects; experience with smart contracts deployed on mainnet; strong expertise in Solidity; strong expertise in ERC-20; experience with Base or another EVM-compatible blockchain; experience with OpenZeppelin; experience with Safe multisig; smart-contract security knowledge; frontend-development capabilities; backend-development capabilities; database-development capabilities; REST API-development capabilities; DevOps capabilities; AI and automation experience; S...

...TRON code-base and fork it into a clean, standalone network that runs on just three validator nodes, using Delegated Proof of Stake (DPoS) as its consensus. The goal is to have a lightweight but fully functional chain that preserves TRON’s performance advantages while letting me control every aspect of the environment. Key capabilities I want built in from day one are smart-contract execution (Solidity-compatible), on-chain token creation/management, and a governance layer so stakeholders can vote on upgrades or parameter changes. I do not have a rigid block-time requirement; please recommend the most practical interval for a three-node DPoS setup and be ready to justify the choice from a throughput and finality standpoint. I expect the work to cover: • Forking the...

TRC-20 Token Smart Contract Development (TRON) I am looking for an experienced blockchain developer to create and deploy a professional TRC-20 token on the TRON blockchain. Token Details Token Name: Quantra Sy...SunSwap and TronScan verification. Provide the verified source code after deployment. Help verify the contract on TronScan. Assist with creating the QTRA/USDT liquidity pair on SunSwap. Deliverables Smart contract source code. Successful deployment on TRON Mainnet. Contract verification on TronScan. Contract address. Deployment documentation. Basic post-deployment support. Preferred Experience Solidity TRON / TRC-20 TronWeb / TronBox Smart contract auditing SunSwap integration Please include examples of previous TRON token deployments or verified smart contracts you have ...

I need an experienced Solidity engineer to take full ownership of our smart-contract layer—from initial design through main-net deployment. Your day-to-day work will include writing clean, upgradeable contracts, setting up automated test suites, running security checks with tools such as Hardhat, Foundry, Slither or MythX, and fine-tuning gas usage so our users pay as little as possible. You will collaborate directly with our front-end team; once a contract is ready, you’ll expose ABI endpoints, write simple integration docs and jump on a quick call if something breaks in staging. Expect regular code reviews on GitHub, coverage reports in CI, and at least one external audit before we push to production. What I’m looking for • Proven track record of shippin...

Solidity + Full-Stack Dev -- ERC-20 Token Platform on Base ERC-20 token on Base, written audit-ready in Solidity Wallet integration and on-chain settlement Full-stack web app: React/, Node.js, PostgreSQL, AWS Platform modules: finance, identity, data marketplace, collaboration, AI analytics API integration with an existing enterprise system Smart contract audit coordination and mainnet deployment Need devs or small teams who have shipped real token-based products to production. No conceptual pitches. Reply with: Links to deployed projects with on-chain components Your rate or rough estimate for this scope 9-10 hrs daily Availability Looking for long term contract Please describe real rates; if you bid lower and then put your new rates, you will be disqualified.

...middlemen. The attached docx lays out user flows, contract interface, and UI wireframes; you’ll turn that vision into code. Key context • Our creators’ core need is simple: raise funds for their projects. • The first public release will showcase technology-focused campaigns, giving us a clear niche to test traction before we expand. What I need from you 1. Develop and thoroughly test the Solidity contracts exactly as specced, including create-campaign, contribute, refund, and withdrawal logic. 2. Build a lightweight React (or similar) front-end that connects via , shows live funding progress, and lets users launch or back a campaign in one transaction. 3. Deploy to a public testnet, integrate wallet connectors (MetaMask, WalletConnect), and provi...

... asset-backed, or equity) and the underlying chain (Ethereum, Binance Smart Chain, Stellar, or another you recommend). What matters most is that the structure meets relevant securities regulations and is technically sound. Key objectives • Design the token’s economic model and compliance flow so investors receive returns legally and transparently. • Write and audit the smart contract code (Solidity or the language suited to your chosen chain) with features such as transfer restrictions, whitelisting/KYC hooks, dividend or profit-sharing logic, and upgradeability. • Deploy the contract to testnet, run unit tests, and hand over a clear deployment script or walkthrough for mainnet. • Provide concise technical documentation covering contract functions...

...before submission. Key requirements • Real-time price monitoring with sub-second latency (I’m happy to run a dedicated node or use WebSocket endpoints if that helps). • Fully automated trade execution from detection through settlement, no manual clicks. • Dynamic transaction-fee optimisation—use gas price oracles and settle only when the net profit after gas is positive. • Written in Solidity for the on-chain contract and either Hardhat or Foundry for testing; TypeScript/ for the off-chain listener is preferred. • Clear README plus hard-fork mainnet-fork tests showing at least one successful arbitrage cycle. Acceptance criteria 1. Deployable smart contract that requests and repays Aave flash loans in the same transaction. 2. ...

...writing and testing production-grade smart contracts to troubleshooting main-net deployments, building full dApps, and occasionally reviewing other developers’ code for security and gas optimisation. Because our clients come with very different ideas, you should be comfortable jumping between chains such as Ethereum, Binance Smart Chain, or even Polkadot when required, and you’ll likely touch Solidity most days, with Rust or Go popping up on some specialty jobs. If you have strengths in only one of those stacks, that’s fine—we can shape early tasks around your core expertise and then branch out together. Typical week-to-week work might involve: • Designing and unit-testing new smart contracts • Integrating on-chain logic with React or front e...