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Sr. Blockchain Engineer (Ganache)

Brooklyn - Remote

About ConsenSys

ConsenSys is the leading Ethereum software company. We enable developers, enterprises, and people worldwide to build next-generation applications, launch modern financial infrastructure, and access the decentralized web. Our product suite, composed of Infura, Quorum, Codefi, MetaMask, and Diligence, serves millions of users, supports billions of blockchain-based queries for our clients, and has handled billions of dollars in digital assets. Ethereum is the largest programmable blockchain in the world, leading in business adoption, developer community, and DeFi activity. On this trusted, open source foundation, we are building the digital economy of tomorrow. To explore our products and solutions, visit


About Truffle

We make open-source tools for building blockchain applications. Our tools let users simulate blockchain virtual machines, debug smart contracts step-by-step, manage suites of automated tests, deploy applications to live networks, interface with smart contracts at a high level of abstraction, and much more. We believe that software development tools should offer sensible defaults and never lose sight of human intent amidst low-level details.

About the Role

Your primary work will be to maintain and improve Ganache, our “Ethereum Simulator”. Ganache is a tool that allows developers to start a local blockchain environment to enable easy, fast, and safe Ethereum development.

Ganache is packaged as a JavaScript library, a command-line application, and a Graphical User Interface. It is downloaded more than 400,000 times every month. You can check out the code here:

You’ll share responsibilities with your team to:

  • Ship regular updates to stay up to date with the changing ecosystem
  • Fix bugs and otherwise improve the end-user experience
  • Implement a plug-in architecture to enable the use of user-maintained custom blockchain simulators
  • Design and implement an interface to allow local modifications to the Ethereum Remote Procedure Call interface as well as the low-level Ethereum Virtual Machine
  • Invent new and novel ways to improve the developer experience across our suite of tools and the rest of the Ethereum ecosystem.
  • Implement CI/CD to fully automate our release process
  • Write and maintain our documentation

About You

You’re comfortable with:

  • Spoken and Written Communication
  • Architecting solutions to open-ended problems
  • Writing software and tests; you probably have 4+ years of professional experience

Skills you’ll learn, or improve upon if you’re already knowledgeable:

  • TypeScript and Node.js
  • Writing high-performance JavaScript
  • Data structures and algorithms (stacks, heaps, queues, tries, graphs, etc)
  • Ethereum Virtual Machine
  • Solidity
  • Truffle
  • Managing and interacting with an Open Source developer community

You’ll have these opportunities:

  • Ship software that reaches 100s of thousands of developers
  • Connect with ConsenSys engineers from MetaMask, Infura, Pegasys, Protocol Labs, etc to coordinate and build software to further foster the Ethereum ecosystem
  • Help build the future of economy by creating the tools used in its development
  • Attend and speak at conferences around the world (DevCon, TruffleCon, more!)
  • Be mentored by some of the best minds in Ethereum and Cryptocurrencies
  • Live anywhere with a quality Internet connection
  • Enjoy unlimited vacation and time off


ConsenSys is an equal opportunity employer. We encourage people from all backgrounds to apply. We are committed to ensuring that our technology is made available and accessible to everyone. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law.


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Competitive benefits

We have a comprehensive and competitive benefits package to make sure we’re looking after you and what matters most.


We believe in ownership and want everyone to have a stake in our future success, that’s why you’ll receive equity when you join us.

Recognized in the blockchain and Web3 ecosystem

Working at ConsenSys is a tremendous reference for your career. You’ll join a network of entrepreneurs and technologists that extends across the global crypto ecosystem.

Continuous learning & opportunities

We provide ongoing growth and development through on-the-job learning, and the ConsenSys Advance Program which includes full access to Coursera, bespoke and technical learning programs and ConsenSys Academy our world-class blockchain and Ethereum program.

Unlimited vacation/holidays

We value downtime to recharge and reset, ensuring everyone at ConsenSys has work/life balance. In addition, company-wide we participate in “zero productivity” days to take a break from work, shut down, and sit back and relax.

Flexible working arrangements

With our global workforce we have fine-tuned asynchronous working which means we have a lot of flexibility in the structure of when we work and how we work together.

Remote first

You’ll be joining a team based all over the world. Providing the unique opportunity to work with people from across 6 continents.