Job Description

At Improbable, we believe that the next revolution in entertainment and society will come from massive virtual worlds. They will create new economies and opportunities globally, changing not just how we play, but how we work and relate to each other. That's why we've made it our mission to build the next generation of technologies for online multi-user games and simulations.


At Improbable, you are surrounded by people who want to improve everything and everyone around them, and who compel you to improve yourself. We're motivated by the fulfilment of solving hard problems to achieve something profound and transformative.

Venture Builder

Improbable is a Venture Builder. We are working with leaders to create businesses in AI transformation, the metaverse and web3. We both create businesses from scratch and invest in existing businesses. Our central services teams work with ventures to help them achieve success; including early stage prototyping and initial product development where this role sits.

Your Mission

As a Principal web3 Solidity Engineerat Improbable, you will work with web3 Ventures to help them get to market faster. You will work with their leadership team, to design, prototype and launch initial versions of their dApps. This is a hands-on, strategic role where you will collaborate with executives, working all the way from identifying customer problems to shipping real dApps used in the community.

What You'll Be Doing

Architect, build, launch and maintain dApps - from concept to being used by the community Build on-chain logic in smart contracts, and connect them to web front-ends to be used by crypto natives and novices Work with business leads to define the product roadmap, help set the vision and strategy for the venture, act as a sounding board for venture leadership Working closely with the Somnia Blockchain and providing product feedback to their team of developers

Why You're Made For This

We are seeking an experienced Web3 Engineer with experience on EVM based smart contracts on Solidity, Web3 JS/TS libraries to perform contract interactions with frontend and backend systems as well as experience with creating and interacting with The Graph.

You've shipped multiple production-grade dApps built using Solidity. You have strong hands-on skills with the blockchain development framework Foundry You've shipped webapps built with typescript (preferably react, next.js) and used wagmi hooks for smart contract integrations. You have a deep understanding of blockchain architecture, token standards (ERC-20, ERC-721, ERC-1155) and non-compliant versions of the standard (e.g. USDC) Knowledge of Solidity foundational best practices and most common security vulnerabilities. You thrive when solving complex, ambiguous problems and enjoy working across disciplines to find the best solutions. You are passionate about the web3 community.

Optional skills

In addition to the above the following technical experience is helpful but not essential:

Experience using The Graph protocol to create Subgraphs on smart contracts and/or designing smart contracts for targeting optimal indexability Experience in the DeFi ecosystem; in particular swapping protocols (e.g. UniswapV2 or V3) and/or lending protocols (e.g. AAVE) Awareness of Solidity fuzz testing, Slither and/or Mithril Hardhat testing framework

While we think the above experience could be important, we're keen to hear from people that believe they have valuable experience to bring to the role. If you identify with the team and mission, but not all of our requirements, then please still apply.


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