Hire the best Blockchain Developers in Pennsylvania

Check out Blockchain Developers in Pennsylvania with the skills you need for your next job.
  • $50 hourly
    Cryptocurrency Consulting and Services for Individuals and Businesses by the hour or project. Professional Bookkeeper, Crypto Enthusiast (since 2016) and Blockchain Data Expertise Former IT Professional, Programmer and Crypto Analytica and Audit Expert Experience Supporting variety of portfolio and tax prep services - Koinly and many others Created a range of Crypto related support and customer CSV tools for organizing, and managing large portfolios involving dozens of wallets/addresses, 10's of thousands for transactions, challenging assets and more. Also, created tools for DeFi and NFT's including an analytic/costing tool for NFTs across multiple chains (ETH/MATIC/AVAX/BSC/FTM) and addresses. Quickbooks expertise integrating crypto data for business and personal situations especially common assets like Bitcoin (BTC), Ethereum ((ETH) and stablecoins like USDCoin (USDC), Tether (USDT) and TerraUSD (UST).
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Ethereum
    In-App Support
    Bookkeeping
    PDF Conversion
    Financial Audit
    Financial Analysis
    Expense Reporting
    Cryptocurrency
    Microsoft Excel
    Intuit QuickBooks
    Data Extraction
    Tax Preparation
  • $85 hourly
    Do you need help with development of your business? Do you need help with software development for your business? That's exactly what I do to help my clients with.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Theme Development
    B2B Marketing
    Online Sales Management
    Mobile App Development
    Data Science
    Cold Calling
    Artificial Intelligence
    Software Development
    API Integration
    Web Application
  • $60 hourly
    Highly motivated Fullstack Web3 Developer with a background in Mechanical Engineering Technology Proficient in fullstack development with experience in React, Node.js, Solidity, Rust, Next.js, tailwind, Python, js, java, Ruby, aws, cosmos. Currently pursuing a Bachelor's degree in Mechanical Engineering Technology, bringing a strong understanding of mechanical systems and their operations. Project Experience: Developing a novel HVAC System on Solana. This project demonstrates the ability to: Apply blockchain technology to optimize and automate HVAC maintenance programs. Integrate mechanical engineering principles with fullstack development expertise.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    ExpressJS
    DApps
    Website
    Tailwind CSS
    Tailwind UI
    Next.js
    Smart Contract Development
    Rust
    Node.js
    DApp Development
    Ethereum
    Solana
    Smart Contract
  • $55 hourly
    As a seasoned Full Stack Web and Blockchain Engineer, I bring a wealth of expeirence in developing robust, scalable, and secure applications. My specialization in Ethereum and Solana ecosystems allows me to create sophisticated smart contracts, DApps, and blockchain integrations that are both efficient and user-friendly. 🚀 Services I Offer: 1. Smart Contract Development - Design, development, and deployment of secure and optimized smart contracts on Ethereum and Solana. - Custom token creation (ERC20, ERC721, SPL tokens) and ICO/IDO support. 2. Decentralized Applications (DApps) - Full-stack development of DApps using Web3.js, Ethers.js, and other blockchain frameworks. - Integration of decentralized finance (DeFi) protocols, NFT marketplaces, and more. 3. Blockchain Integration & Consulting - Strategic consulting on blockchain adoption and technology stack selection. - Integration of blockchain solutions with existing systems to enhance transparency and security. 4. Web Development - Full-stack web development with a focus on creating responsive and dynamic user interfaces. - Backend development with Node.js, Django, PHP, Laravel, Ruby on Rails, ensuring robust and scalable server-side applications. 💡 End-to-End Project Managment From concept to deployment, I manage all stages of development, including requirement analysis, system architecture, coding, testing, and maintenance. My commitment to agile methodologies and best practices guarantee timely delivery and high-quality code. 🛠 Technologies & Tools - Blockchain: Ethereum, Solana, Smart Contracts, DApps, Web3.js, Ethers.js, Solidity, Rust - Web Development: JavaScript, TypeScript, Python, PHP, React, Vue, Node.js, Django, Ruby on Rails, RESTful APIs, GraphQL, AWS - Other Skills: Version Control (Git), CI/CD Pipelines, Docker, Kubernetes Whether you're looking to develop a new DApp, integrate blockchain into your existing systems, or create a full-fledged web application, I'm here to help. Let's discuss yoru project and explore how we can achieve your goals. Feel free to reach out to me for a detailed consultation or a proposal discussion.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Smart Contract
    DApp Development
    NFT
    web3.js
    Ethereum
    Solana
    Laravel
    PHP
    Ruby on Rails
    Django
    Python
    Node.js
    React
    Rust
  • $30 hourly
    I'm a Digital Marketer with specific interest in content writing, copywriting and SEO. The skills I've acquired during my studies and in my experience give me the ablity to handle a wide variety of tasks including: - Content Writing - Copywriting - Landing Pages and Product Descriptions - Microcopy, Ad Titles and Descriptions - Blog Posts - Ghostwriting - AI-Assisted Content Creation (Articly.ai, Chatgpt) - PPC Ad Campaign Management - Crypto/NFT articles I offer high-quality service to my clients and always deliver projects on time and respond quickly to feedback. I look forward to hearing from you!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Content Writing
    Pay Per Click Advertising
    Copywriting
    Topic Research
    Blog Writing
    NFT
    Content SEO
    Editing & Proofreading
    Search Engine Optimization
    Website Content
    Article
  • $90 hourly
    Looking to get your MVP up and running in a few days? You can - for FREE - with my turnkey, batteries and source code included fullstack NextJS 14 Typescript web app with fully configured Supabase SSR Auth and Postgres DB, Zod and YUP! data validation, TanStack React Query, role based access control, Tailwind CSS powered ShadcnUI, admin dashboard, AI prompt and model playground geared for OpenAI APIs, music player, light/dark mode toggle and user preference auto discovery and more. Most templates do not include arguably the most difficult and time consuming part of the development process - secure user authentication, data storage and validation, and state management. In many cases it's easier for an engineer to build their own app instead of adding the template's missing pieces. And that's why I created Onyx and included everthing you need to immediately start signing up users and storing data. You can access your free copy at my GitHub code repository found here: github.com/rmourey26/onyx.git If you need adjustments and or additional custom features on top of the free code base or if you need something entirely different, please reach out to me for a chat. For those who download the free template, all I ask in return is that you click the 'star' on the GitHub page. Thanks and best to all! Profile summary is below. ******************************************************* US based, full stack web and software engineer ranked in the top 1% of coders globally with experience building AI, blockchain, and cloud computing apps, DApps and Saas. 15 years of enterprise experience in various analyst and VB/SQL developer capacities Global coder rankings include the top: - 0.6% in CSS and JSON - 0.8% in JavaScript - 2% in NextJs, ReactJS and Nix - 3% in NodeJS - 4% in ExpressJS - 5% in TypeScript & Haskell SEO scores meet or exceed the average of top 100 website in the world Achievements - Created Haskell blockchain ecosystem derived from Cardano and Rust implementation - Built tool to convert any NextJS app to a full stack, enterprise grade AWS Cloudformation with 'set it and forget it' Amplify enabled CI/CD - Dockerized, full stack ChatGPT integrated NextJS Saas - Custom AI text search and analytics vectorized embedding using OpenAI and Supabase - SMART on FHIR apps, FHIR servers - Auth0, Okta, NextAuth, AWS Cognito oauth2 IDP's - E2E Ethereum de-fi project and DApp implementation including upgradable ERC20 & aggregator smart contract deployments and Graph subgraph Miscellaneous: - Named to Marquis Who's Who of America 2023 - 93 credits toward Bachelors of Computer Science - Founded DAO at 0 and led to a peer deemed valuation of $500mn - Author of tech articles, white paper, pitch decks - Treasurer of Cyber Wyoming's Board of Directors - 7 years web and software development - 7 years SQL and VB development enterprise - 7 years enterprise customer tech support, sales, retention - 6 years enterprise healthcare and health insurance in Senior Business Analyst and Business System Analyst - Led 1st team nearly 20 years ago as an Administrative Officer in education loan servicing industry
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Graphic Design
    Cloud Engineering
    Cardano
    Generative AI Prompt Engineering
    Technical SEO
    Supabase
    Auth0
    AWS CloudFormation
    Ethereum
    ChatGPT API Integration
    Rust
    React
    Next.js
    Docker
  • $15 hourly
    I am looking to learn anything possible, and also put by current skills to work. I am a very excellent people person. I am great at typing. Data entry. Blockchain knowledge. Internet knowledgeable. Astrological professional! Expert English skills. Willing to do whatever it takes!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Computer Basics
    Android
    Blockchain, NFT & Cryptocurrency
    Cryptocurrency
    Customer Service
    Cash Flow Analysis
    Problem Resolution
    Keyboarding
    Social Customer Service
    Microsoft Office
    Microsoft Excel
    Computer Skills
    Data Entry
    Typing
  • $30 hourly
    Professional Summary A highly motivated and capable professional cook with a real passion for preparing popular, healthy and nutritious meals. Having a 'hands on' approach to all areas of the kitchen and possessing excellent organisational skills and administrative skills. A quick learner who can effortlessly fit into a existing established environment, and also encourage junior staff to achieve their best when preparing meals. Looking for a immediate start and to join a busy and successful team where I can fulfill my potential and further advance an already successful career. Authorized to work in the US for any employer
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Accounting Basics
    Cryptocurrency
    General Transcription
    Data Entry
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by 5M+ businesses