The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Bitcoin is a revolutionary technology that is changing our world by making it easier to send and receive money, even with minimal infrastructure in place. A Bitcoin Expert is knowledgeable and experienced with the technology, utilizing their knowledge to develop applications, advise on digital transactions or audits, or analyze market data related to blockchain.
Here's some projects that our expert Bitcoin Experts made real:
Using the power of Freelancer.com, clients all over the world have been able to find the best Bitcoin Experts out there, who specialize in helping them reach their objectives. With an extensive range of services available from our talented pool of experts, clients can find what they need from a Bitcoin Expert who fits within their budget.
If you have a project that needs completing but don’t know where to start, why not post it on Freelancer.com and our talented professional Bitcoin Experts will guide you every step along the way? Come join the revolution today and make your project a reality!
From 47,499 reviews, clients rate our Bitcoin Experts 4.9 out of 5 stars.Bitcoin is a revolutionary technology that is changing our world by making it easier to send and receive money, even with minimal infrastructure in place. A Bitcoin Expert is knowledgeable and experienced with the technology, utilizing their knowledge to develop applications, advise on digital transactions or audits, or analyze market data related to blockchain.
Here's some projects that our expert Bitcoin Experts made real:
Using the power of Freelancer.com, clients all over the world have been able to find the best Bitcoin Experts out there, who specialize in helping them reach their objectives. With an extensive range of services available from our talented pool of experts, clients can find what they need from a Bitcoin Expert who fits within their budget.
If you have a project that needs completing but don’t know where to start, why not post it on Freelancer.com and our talented professional Bitcoin Experts will guide you every step along the way? Come join the revolution today and make your project a reality!
From 47,499 reviews, clients rate our Bitcoin Experts 4.9 out of 5 stars.I’m running a small dApp on Ethereum that connects through the library. A recent update introduced smart-contract bugs—functions are reverting and expected events never fire—so the app is effectively stuck. I need a Solidity-savvy developer who can jump in right away, locate the root cause, patch it, and redeploy a clean contract without breaking the existing front-end integration. Key tasks • Audit the current Solidity codebase in my GitHub repo • Isolate the bug and propose the safest fix • Update tests (Hardhat) and prove the fix on a public testnet • Supply the patched contract, migration script, and a concise changelog Turnaround is ASAP. If you can pinpoint and resolve issues quickly, please reach out with your estimated timefram...
Want to buy crypto if anyone have
I’m looking for a seasoned crypto trader to help me build a solid, actionable trading plan for USDT pairs. My focus is on both day trading and swing trading, but I want the backbone of the strategy to be smart, disciplined risk management rather than guesswork or “gut feel.” Here’s what I need: • A clear, step-by-step framework for identifying high-probability setups on the major exchanges I already use (Binance and OKX). • Precise rules for position sizing, stop-loss placement, and profit-taking that keep my maximum drawdown within agreed limits. • Guidance on the technical indicators best suited to short- and medium-term trades—think moving-average crossovers, RSI, or ATR-based stops—plus how to combine them for stronger confirmati...
I want to run my own standalone cryptocurrency payment gateway—no plug-ins or hosted third-party services. The system must let me generate payment requests, monitor them in real time, and confirm settlement across several chains. Supported coins and networks • Bitcoin (BTC) • Ethereum (ETH) • TRON tokens (TRC-20) • SOL (Solana) • TON • Any BEP-20 asset Core features • Real-time transaction tracking with automatic status updates and webhooks • Multi-currency handling that creates unique deposit addresses, detects incoming funds, and normalises confirmations across chains Technical expectations – Clean REST/JSON API so my websites or mobile apps can create a charge, query its status, and receive callbacks. – Sec...
I already run a modest solo-mining rig and now want a clear, data-backed roadmap that squeezes every possible satoshi out of it without torching my power bill. Your job is to analyse my current setup, then deliver a practical optimisation plan that touches on three fronts at once: maximising hash rate, cutting energy waste and, if necessary, swapping or adding the right hardware. After a short video or chat walkthrough of my rig I’d like you to: • Benchmark the existing hash rate, power draw and ROI, using common tools such as cgminer, AwesomeMiner or your preferred monitoring suite. • Recommend firmware tweaks, clock/voltage settings, cooling improvements and any layout changes that will raise hashes-per-watt safely. • Compare current ASIC / GPU options on the m...
I have an already-deployed token contract on Binance Smart Chain and need a thorough audit before moving forward with marketing and listings. Your review should zero in on three key areas: • Security vulnerabilities – identify any re-entrancy, overflow/underflow, access-control, or other exploits that could place funds at risk. • Functionality and performance – verify that every function behaves exactly as intended and runs efficiently within BSC gas constraints. • Compliance with standards – confirm the contract fully adheres to BEP-20/ERC-20 conventions and best practices, including events, return values, and upgrade-safety. Deliverables I’m expecting: 1. A clear, well-structured report outlining each finding, its severity, and a recommen...
This advertisement is specifically for a high-precision Web3 specialist or Smart Contract Deployment Engineer whose mission is to execute the final, live launch of our decentralized yield aggregation platform. Urgent Commission: Mainnet Deployment Engineer – Launch the Hyper-Efficient Alpha Engine We require a highly skilled deployment specialist to commission and monitor the final phase of our proprietary, AI-driven yield capture system. Your singular focus is to connect this engine to Mainnet and guarantee maximum efficiency and live crypto production across all integrated earning pages. This is not a wallet-to-wallet transfer service. This platform is a sophisticated financial engine designed solely to deploy, manage, and earn verifiable crypto on-chain. The Deployment Mandate:...
I’m putting together a small-scale Bitcoin & LTC mining farm built entirely with high end miners nongpu and need targeted help getting the software side running smoothly. The hardware is on hand; what I’m missing is a clean, reliable configuration that lets each unit start hashing right away. Your task is limited to software configuration: • Flash or update the proper firmware for the models I have. • Configure mining software, set optimal pool details, and apply performance-safe overclock settings if appropriate. • Put in place a lightweight monitoring solution so I can track temperature, hash rate, and error logs from one dashboard. A short hand-off guide in plain English should follow, covering any commands, credentials, or maintenance steps so I ...
Hello! I need someone to build this site for me, ideally if you already have experience in this industry. As a reference I can offer already finished leaked source codes. (needs to be integrated with Bitcoin payment gateway, and I don't want to redirect users, I want it to be displayed everything on my site) (I will provide Bootstrap frontend)
Objetivo: posicionar y escalar la adopción de un token digital ya existente, integrándolo dentro de un libro digital interactivo sobre Web3 y complementándolo con un plan de marketing y gobernanza. El proyecto abarca diseño editorial, tokenomics, estrategia de marca, distribución y mantenimiento. 1) Alcance y entregables del proyecto [ ] Informe de posicionamiento estratégico del token [ ] Propuesta de tokenomics actualizada (suministro, distribución, incentivos, vesting) [ ] Estructura editorial del libro digital interactivo (máx. 100 páginas) centrado en Web3 y tu token [ ] Plan de experiencias interactivas en el libro que incorporen el token (staking simulado, votaciones, recompensas) [ ] Estrategia de difusión y ca...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.