George Muresan, Developer in Detroit, United States
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George Muresan

Verified Expert  in Engineering

Software Developer

Detroit, United States
Toptal Member Since
September 12, 2017

George has ten years of full-stack engineering experience at companies of different sizes. He has worked at large companies like Amazon and small startups in San Francisco. He has the ability to work on both small and large teams as a leader and a team member. George worked recently with blockchain, crypto, and non-fungible tokens (NFTs).


JavaScript, Ethereum, Blockchain, Web Extensions, Svelte, Go, TypeScript...
Python, Django, React, jQuery, Ethereum, Non-fungible Tokens (NFT), Solidity...
Sidekiq, React, JavaScript, Ruby on Rails (RoR), Axios, Jest...




Preferred Environment

Xcode, IntelliJ IDEA, Git, Vim Text Editor, Unix, Linux, MacOS

The most amazing...

...web app I created was a business tool to define organizational priorities and guides users through the process of allocating resources to different projects.

Work Experience

Senior Web3 Engineer

2022 - PRESENT
  • Implemented core features on an Ethereum wallet built as a Chrome extension in Svelte.
  • Collected events and analyzed user behavior to recommend new features and optimizations to enable the team to meet KPIs in a methodical data-based approach.
  • Integrated back-end and front-end code with external blockchain services such Alchemy, CoinMarketCap, and Loopring.
Technologies: JavaScript, Ethereum, Blockchain, Web Extensions, Svelte, Go, TypeScript, Tailwind CSS, Axios, UI Design, Web3.js, Jest, Kubernetes, Full-stack Development, Node.js, Search Engine Optimization (SEO), Next.js

Lead Full-stack Engineer

2020 - PRESENT
  • Evolved into a core technical leadership position by mentoring younger developers, helping guide product and technical roadmap, and developing key software architecture.
  • Developed an eCommerce experience handling Ethereum and credit card purchases and scaled it to handle 20,000 concurrent users making 10,000 purchases in ten minutes.
  • Architected and led the Greenfield technical implementation of an interactive marketplace browsing experience using Django, React, GraphQL, and Elasticsearch.
  • Wrote and reviewed the Solidity code to support ERC-721 (NFT) token contracts and helped create off-chain infrastructure to monitor and synchronize on-chain events with website and database.
Technologies: Python, Django, React, jQuery, Ethereum, Non-fungible Tokens (NFT), Solidity, TypeScript, Tailwind CSS, Axios, UI Design, Web3.js, Jest, Kubernetes, Full-stack Development, Node.js, Search Engine Optimization (SEO), Next.js

Senior Full-stack Developer

2018 - 2020
  • Worked directly with the Center of Medicaid & Medicaid Services and implemented our Enhanced Direct Enrollment API connection in Rails, allowing HealthSherpa to become the first approved partner to launch EDE.
  • Ingested public data sets to create a searchable Elasticsearch database of doctors in the United States.
  • Actively participated in product analysis and decision making while implementing various features across the stack using Ruby on Rails and React.
Technologies: Sidekiq, React, JavaScript, Ruby on Rails (RoR), Axios, Jest, Full-stack Development, Node.js, Search Engine Optimization (SEO)

Lead Software Engineer

2017 - 2019
Pyramid Consulting International
  • Created a single page application (SPA) using React with a GraphQL back end. The application is a business tool to help organizations with their strategic planning and the resource allocation process.
  • Utilized a GraphQL service called Graphcool as the back end for the React app, after analyzing both Parse and Firebase alternatives.
  • Implemented an authentication system by integrating Auth0 with Graphcool in order to create a secure authentication strategy that is easily extensible to enterprise and social authentication methods.
  • Implemented end-to-end and UI testing using UseTrace. This allows the app to be automatically tested as if a user is interacting with the DOM.
Technologies: Auth0, CSS, HTML, GraphQL, Node.js, React, JavaScript, Jest, Full-stack Development, Search Engine Optimization (SEO)

Chief Technology Officer/Co-founder

2016 - 2017
  • Created an eCommerce platform using the Laravel PHP framework. The eCommerce platform is geared towards businesses and distributors selling their goods at wholesale to retailers and other distributors.
  • Applied and accepted to 500 Startups Batch 18. Learned marketing and sales strategies geared towards startups.
  • Managed a remote team of developers tasked with implementing new features and fixing bugs in the product.
  • Actively involved in sales and marketing at the company. During the 4 months at 500 Startups MRR increased by 250% while active customers increased by 300%.
Technologies: CSS, HTML, JavaScript, Ruby on Rails (RoR), React, Angular, Laravel, PHP, Jest, Full-stack Development

Full-stack Software Engineer

2015 - 2016
  • Implemented new features and fixed bugs on the Ember front-end.
  • Supported the back-end REST API that was built on top of Ruby on Rails, SideKiq, and both MySQL and Cassandra databases.
  • Implemented features on top of REST APIs for the advertising platforms for Adwords, Facebook, LinkedIn, Twitter, and Bing.
Technologies: MySQL, Sidekiq, Cassandra, Ruby on Rails (RoR), JavaScript, Ember.js

Full-stack Software Engineer

2014 - 2015
The Advisory Board Company
  • Supported an enterprise healthcare management application built on top of the Django framework.
  • Created unit tests for areas of the code base with low test coverage in order to bring up the coverage to 85%.
  • Contributed to weekly sprint and daily standup meetings in order to help our team adhere to our Agile process.
  • Collaborated with in house designers to plan and implement user facing features in the most user friendly manner.
Technologies: CSS, HTML, Django, Python

Chief Technology Office/Co-founder

2013 - 2014
Waverly Place Productions
  • Created a mobile application for both iOS and Android that was used for social networking between friends. The app was used to make social plans between friends and friends of friends.
  • Created the back-end service as a REST API using the Django Python framework.
  • Migrated the application back-end to the Parse no-sql solution in order to introduce a solution that scales very easily with little extra work so our small team could focus on improving our application.
  • Led a small development team in the production of an iOS app, an Android app, and a back-end server.
Technologies: Parse, Django, Java, Objective-C, Android, iOS

Real Estate Listing

A web app that I worked on using React and Parse. It is a real estate listing website for individual room rentals.

Allovance Method

I am the lead developer for The Allovance Method. I built the application from scratch using React with a Graphql backend.

The Allovance Method is a business application that guides businesses and organizations in their decision making process. It is used to help you decide and justify how you allocate resources (capital, time, people) by taking you through 5 steps:

1. Strategize - Decide what priorities are important to you and what objectives you want to accomplish
2. Compare - Use pair-wise comparison to weigh the importance of your priorities and objectives to each other
3. Quantify - Create the scales that define the impact of each project on your objectives
4. Score - Create and score your "projects" according to the scales you defined in step 3. An overall project score is calculated for each project.
5. Select - Use data and scores to select a portfolio of projects that maximizes project scores while staying within your budget

I was the first CTO of OrderCircle where we created an eCommerce platform for wholesalers and distributors.

OrderCircle is built with the Laravel PHP framework. We integrate with related services like Shopify and QuickBooks.

We were part of Batch 18 of 500 Startups in San Francisco in 2016.
2009 - 2013

Bachelor of Science Degree in Computer Science

The University of Michigan - Ann Arbor, MI


Node.js, React, Google AdWords, AdWords API, Lodash, Facebook API, LinkedIn API, Twitter API, Underscore.js, Stripe, Web3.js, Sidekiq, jQuery


Auth0, Shell, Sequelize, Vim Text Editor, Git, IntelliJ IDEA, Xcode, NGINX


Redux, Tailwind CSS, Jest, Flux, Express.js, Ember.js, Ruby on Rails (RoR), Django, Laravel, Next.js, Angular, PhoneGap, React Native, Svelte


HTML5, GraphQL, JavaScript, TypeScript, Java, Ruby, Python, PHP 7, SQL, C++, CoffeeScript, CSS, Objective-C, HTML, PHP, Solidity, C#, Go


Redis, NoSQL, MySQL, PostgreSQL, MongoDB, Cassandra, Memcached


Scrum, Responsive Coding, Agile, Object-oriented Programming (OOP), Search Engine Optimization (SEO), Functional Programming, UI Design


Amazon Web Services (AWS), MacOS, iOS, Parse, Linux, AWS Lambda, Unix, Blockchain, Docker, Android, Firebase, Ethereum, Kubernetes


Web Development, Axios, Full-stack Development, Distributed Systems, Cryptocurrency Wallets, Cryptocurrency, Non-fungible Tokens (NFT), Computer Science, Web Extensions, Web App UI, Web Applications

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