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Bitcoin is the world’s first decentralized currency, which means that it a currency that isn’t backed up by any sort of institution, government, or central bank.
Bitcoin consultants can help individuals and businesses incorporate the digital currency into their business and investment plans.
5.7
5.7
97%

Perth, Australia
$50 USD per hour
I provide complete IT services tailored to modern business needs, with a strong focus on Blockchain development, Artificial Intelligence, Machine Learning, Big Data, Web and Mobile app development, E-commerce platforms, and custom software solutions. I specialize in blockchain technologies including DEXs, DApps, NFTs, Web3, smart contracts, and DeFi applications across platforms like Ethereum, BSC, and Polygon. For web and mobile development, I work with Java, Python, PHP, and top JavaScript frameworks such as React.js, Node.js, Angular, and Vue.js—alongside mobile technologies like Flutter and React Native. My e-commerce solutions are built on platforms like WooCommerce, Shopify, and Magento, while my AI and machine learning services leverage tools such as TensorFlow and AWS to create intelligent, data-driven systems. If you're looking for secure blockchain integration, modern web and mobile development, scalable e-commerce systems, or custom AI-driven software, I’m here to help turn your ideas into powerful digital products.

6.4
6.4
97%

Sydenham, Australia
$40 USD per hour
═════════════════════════════════════════════ LEON FRESH / REN Full-Stack Developer + UI/UX Designer · Sydney · 10+ Years Next.js · React · WordPress · AI Web Apps · SaaS · UI/UX ═════════════════════════════════════════════ One hire. Premium design and the engineering to ship it. Most web projects need two people: a designer to create a polished user experience, and a developer to build it properly. I do both. I help businesses, startups, and founders turn ideas into beautiful, fast, production-ready websites and web apps without the usual handoff problems, miscommunication, or doubled cost. I can help you with: ✅ Custom websites and landing pages ✅ Web apps, dashboards, portals, and SaaS products ✅ Next.js, React, JavaScript, HTML5/CSS3, PHP, Python ✅ WordPress design, development, fixes, and customisation ✅ AI tools, GPT/LLM integrations, automation, and Python workflows ✅ UI/UX design in Figma, Adobe XD, Photoshop, Illustrator, and InDesign ✅ Interactive experiences using Unity3D and C# Trusted by: BMW · Maserati · Sony · CeBIT Australia What makes me different: I care about both how your project looks and how it works. You get clean design, clear communication, responsive development, and a final product that feels professional instead of patched together. I also bring a strong creative and strategic background, with 35k+ YouTube subscribers and 18M+ views, giving me a real understanding of attention, content, and user engagement. If you need a developer who can think like a designer, build like an engineer, and communicate clearly from start to finish, I’d be happy to help. Let’s build something polished, functional, and ready to launch.

5.8
5.8
96%

Riverwood, Australia
$25 USD per hour
I am an expert in - AWS including autoscaling, high availability, data transfer - Blockchain infrastructure setup - Moodle hosting, management, administration - Cloud infrastructure - Install and configure Elasticsearch, Kibana, Logstash, Beats, APM - Linux administration (Ubuntu, Redhat, CentOS, SUSE, Kali, Debian, etc.) - Automation using Ansible - MySQL, MySQL Cluster administration, migration, backup/restore - PostgreSQL administration, migration, backup/restore - Cryptography - SSL, certificate, public-key infrastructure, cryptography - Oodo ERP, NextCloud - cPanel, Plesk - Optimise WordPress performance, Joomla, Drupal - Acronis, Splunk, security - FreeRadius (RADIUS) - Ethical hacking And many other stuff in technology. Please reach out to me if you need any help with regard to information technology issues.

6.8
6.8
100%

Geelong, Australia
$50 USD per hour
Thank you for visiting my profile. I am an AI Developer with over ten years of professional experience in software engineering. I began my career as a Full Stack Web and Mobile Engineer, working extensively with technologies such as JavaScript, TypeScript, React, C#, Python, and modern backend and cloud platforms, and I have successfully delivered scalable web and mobile applications across industries including business, education, e-commerce, and enterprise environments. In recent years, my professional focus has shifted fully toward the artificial intelligence field, where I have built strong, hands-on expertise designing and deploying production-ready AI solutions. I specialize in developing AI-powered systems such as intelligent chatbots, AI agents, and virtual assistants using GPT and modern large language models. My experience includes advanced prompt engineering, fine-tuning and training machine learning models, retrieval-augmented generation (RAG), vector databases, embeddings, semantic search, and contextual memory systems. I design and implement end-to-end AI workflows using frameworks such as LangChain, integrating AI capabilities seamlessly into real-world products and business processes. I also develop AI-driven automation systems, including intelligent bots and workflows for platforms such as WhatsApp, Slack, and Telegram, as well as scalable business automation solutions using tools like n8n and Zapier to improve efficiency and customer engagement. My background as a full-stack engineer allows me to build AI solutions that are not only intelligent but also reliable, secure, and scalable. I am highly experienced in deploying AI systems to cloud environments such as AWS, Google Cloud Platform, and Firebase, and in integrating AI services into web and mobile applications. In addition, I work with AI-enhanced Web3 and blockchain solutions, including smart contracts, decentralized applications, AI-assisted trading bots, and automation within Ethereum, EVM-based ecosystems, and Solana. I am committed to delivering high-quality AI solutions with clear communication, timely delivery, and long-term technical support. If you are looking for an AI developer with a strong engineering foundation and proven AI expertise, please feel free to send me a private message to discuss your project.
A Bitcoin expert is a specialist who designs, builds, integrates, audits, or advises on Bitcoin-based systems, wallets, payment flows, and on-chain transactions for businesses and individuals. Hiring a Bitcoin expert gives you direct access to deep knowledge of the Bitcoin protocol, the Lightning Network, wallet architecture, custody practices, and transaction analysis — skills that are difficult to source through generalist developers or finance consultants.
Whether you need to integrate Bitcoin payments into a checkout, build a custodial or non-custodial wallet, run on-chain analytics, or set up a secure cold storage policy, a qualified Bitcoin consultant brings the technical and strategic experience to deliver work that is secure, compliant, and production-ready.
Bitcoin specialists handle a wide spectrum of work that spans engineering, security, and advisory. The deliverables depend on the project scope, but most clients hire a Bitcoin developer or consultant for a defined set of outcomes tied to product launches, payment infrastructure, or security reviews.
A capable Bitcoin consultant works across the full stack of Bitcoin tooling. Look for hands-on experience with the protocols and libraries that match your project scope.
Bitcoin freelancers serve a broad set of industries where digital assets, cross-border payments, or self-custody play a meaningful role. Common use cases include fintech startups building Bitcoin-native products, e-commerce stores adding BTC checkout, remittance platforms reducing settlement costs, gaming and content platforms using Lightning for micropayments, exchanges and custodians needing wallet infrastructure, and family offices or corporate treasuries holding Bitcoin reserves. Law firms, forensic accountants, and compliance teams also retain Bitcoin consultants for transaction tracing, expert testimony, and AML investigations.
Bitcoin work is unforgiving — a small mistake in key handling or transaction signing can lead to permanent loss of funds. Vet candidates carefully against the technical depth and security posture your project requires.
Sample interview questions you can use directly:
Freelancer.com gives you access to a global pool of Bitcoin developers, cryptocurrency consultants, and blockchain engineers across every time zone, so you can match your project to a specialist with the exact protocol, language, and industry experience you need. Profiles on Freelancer.com surface verified work history, client reviews, completion rates, and skill tests, making it straightforward to compare candidates on real evidence rather than marketing claims.
Clients set their own budgets and receive competitive bids, with Milestone Payments protecting funds until agreed deliverables are met. Whether you need a one-off Bitcoin payment integration, an ongoing wallet engineering retainer, or a senior advisor for a treasury rollout, you can post a project on Freelancer.com and start receiving proposals from qualified Bitcoin specialists within hours.
Ready to build, audit, or scale your Bitcoin product?
Hiring a Bitcoin specialist is a structured process that rewards a clear brief and disciplined evaluation. Bitcoin work touches funds, keys, and security-sensitive code, so the way you scope and review candidates directly affects the quality of what gets shipped. The three steps below walk you through posting your project, reviewing bids, and awarding the work on Freelancer.com.
Your project post is the single biggest determinant of bid quality. A precise brief filters out generalists and attracts Bitcoin developers whose experience genuinely matches your scope — whether that's a Lightning integration, a multi-sig treasury setup, or a wallet audit. Head to the
Bids are short proposals, not just price quotes. Read them as evidence of how each Bitcoin freelancer interprets your brief, what approach they propose, and whether their suggested timeline is realistic. Strong proposals for Bitcoin work usually reference specific libraries, name protocol versions, raise sensible questions about key management or fee handling, and link to relevant past projects.
The final decision combines proposal quality with the evidence on each freelancer's profile. Weigh consistency across multiple Bitcoin projects rather than a single impressive case, and pay close attention to written client reviews on similar engagements — wallet builds, Lightning work, or security audits.
A Bitcoin expert focuses specifically on the Bitcoin protocol, Lightning Network, UTXO model, and Bitcoin-native standards such as Taproot and PSBTs. A general blockchain developer often works across smart contract platforms like Ethereum and may not have deep experience with Bitcoin's distinct architecture, scripting limitations, or security model.
Yes. Many clients hire Bitcoin consultants for discrete projects such as integrating a payment gateway, auditing a wallet, setting up multi-sig custody, or producing technical documentation. You can scope the engagement tightly, agree on milestones, and close the project once deliverables are accepted.
Timelines vary with scope. A BTCPay Server installation or basic Bitcoin checkout integration can often be completed in a few days, while a custom non-custodial wallet, Lightning service, or full security audit typically runs several weeks to a few months. Share a detailed brief to get realistic timeline estimates from bidders.
For focused engineering work, security reviews, or advisory engagements, an experienced individual freelancer is usually faster and more cost-effective. Agencies make sense only when you need a coordinated multi-disciplinary team across product, design, engineering, and compliance running in parallel.
Many Bitcoin consultants have practical knowledge of KYC/AML obligations, the Travel Rule, and reporting requirements, and can advise on how technical design choices affect compliance. For binding legal opinions, pair the freelancer with a qualified attorney in your jurisdiction.

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