Blockchain Engineer

Consensys is the leading blockchain and web3 software company founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum. Since 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem.

Through our product suite, including the MetaMask platform, Infura, Linea, Diligence, and our NFT toolkit Phosphor, we have become the trusted collaborator for users, creators, and developers on their path to build and belong in the world they want to see.

Whether building a dapp, an NFT collection, a portfolio, or a better future, the instinct to build is universal. Consensys inspires and champions the builder instinct in everyone by making web3 universally easy to use and develop on.

Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on. 

You’ll get to work on the tools, infrastructure, and apps that scale these platforms to onboard one billion participants and 5 million developers. You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects — challenging you to stay at the top of your game. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies. 

Role Summary

We are seeking a Blockchain Engineer to join our Treasury team, focused on building and maintaining on-chain infrastructure to support liquidity management, cash operations, custody, and risk management. This role will design and implement smart contract solutions, automation pipelines, and integrations with custodial and non-custodial wallets to ensure secure, scalable, and compliant treasury operations.

Key Responsibilities

• Smart Contract Development & Auditing

  • Design, build, and audit smart contracts to automate treasury workflows, including rebalancing, cross-chain swaps, and bridging.

• On-Chain Infrastructure & Automation

  • Build systems to consolidate and monitor balances across EOAs, Safe/MPC wallets, custodians, and DeFi protocols.

  • Automate recurring transactions (e.g., stablecoin conversions, revenue rebalancing) aligned with treasury policy targets.

• Treasury System Integration

  • Integrate on-chain infrastructure with Treasury Management Systems (e.g., Kyriba) for unified reporting across fiat, custodial, and non-custodial accounts.

  • Develop APIs and middleware to ensure seamless interaction between blockchain networks and internal systems.

• Risk & Compliance Support

  • Support risk management with real-time visibility into protocol-level exposures, credit/counterparty risk, and liquidity positions.

• Collaboration

  • Work closely with Treasury, Finance, Security, and Product teams to translate policy and risk requirements into technical solutions.

  • Partner with custodians, auditors, and external vendors (e.g., MPC providers like Fireblocks/FORDEFI) for integration and compliance.

Qualifications & Skills

• Bachelor’s or Master’s in Computer Science, Engineering, or related field.

• 3–5+ years of blockchain development experience (Solidity, Rust, or similar).

• Hands-on experience with smart contract development, auditing, and deployment on Ethereum and/or other major chains.

• Strong knowledge of DeFi protocols, liquidity pools, bridges, and stablecoins.

• Experience with custodial and non-custodial wallet infrastructure (EOA, MPC, multi-sig).

• Proficiency with APIs, Python/TypeScript, and DevOps tooling for automation.

• Understanding of treasury operations, cash management, and financial risk is a plus.

Preferred

• Experience with Treasury Management Systems (TMS) integration.

• Prior work in fintech, digital asset exchanges, or institutional crypto custody.

• Strong security mindset: ability to identify and mitigate smart contract and infrastructure risks.

Impact & Success Metrics

• Reduction of manual treasury transactions and approvals.

• Improved visibility of on-chain balances, flows, and risks.

• Successful automation of revenue rebalancing and cross-chain liquidity management.

• Increased capital efficiency (minimizing idle assets, optimizing protocol usage).

Don't meet all the requirements? Don't sweat it. We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role.

It is a requirement of employment in this position that applicants will be required to submit to background checks including but not limited to employment, education and criminal record checks. Further details will be provided to applicants that successfully meet the criteria for the position as determined by the company in its sole discretion. By submitting an application for employment, you are acknowledging and consenting to this requirement.