Our mission at XMTP is to build an open, crypto-native communication protocol that connects communities, applications, and users. As a protocol engineer at XMTP you'll build mission-critical software that will help us achieve that goal.


As a Protocol Researcher at XMTP you will:

What you will be doing:

  • Research and develop open protocols for secure messaging. Explore spam protection/settlement, data consistency in distributed open and hostile environments, incentivized running of nodes, and more
  • Use a layered protocol approach that is mindful and explicit about what it requires, what it provides, under what threat models, and with what trade-offs.
  • Combine crypto, economics and traditional technologies to create a sustainable distributed and fault-tolerant system.
  • Research and design core functionality.
  • Provide feedback on overall design decisions and participate in code reviews.
  • Deep understanding of libp2p to build application-level protocols.
  • Build incentivized, distributed systems.
  • Interpret and implement solutions based on academic research.

Ideally, you will have:

  • A passion for building blockchain technology and networks
  • Very strong academic or engineering background (PhD-level or equivalent in industry); relevant research experience
  • Experience with Zero Knowledge proofs and related technologies.
  • Experience with low level/strongly typed languages (C/C++/Go/Rust or Java/C#).
  • Experience with Open Source software.
  • Experience designing incentive systems and writing/deploying smart contracts in Ethereum, Solana, or other chains.

(No big deal if you don't meet everything above, we'd still love to hear from you!)

Who we are

We set out to design a modern organization from the start—one that’s global, remote, and asynchronous-by-default.

We think of ourselves as a “grown-up” startup—building a company that’s fair, equitable, and rewarding for everyone to work at, with an emphasis on having fun while building an ambitious project.

Our team has decades of experience in building companies, but we’re looking for more diverse experiences to add to the founding team. Joining XMTP today represents not just an opportunity to play a key role in building an essential part of the next web, but also in establishing the core DNA of the company.

About XMTP, Inc.

XMTP, Inc. was co-founded by Matt Galligan and Shane Mac, and is headquartered on the web. We have an excellent benefits package that includes parental leave, competitive pay, an equipment and home office allowance that refreshes yearly, monthly lifestyle stipend, as well as a personal assistant, and financial advisor. For U.S.-based team members we also provide access to FSA, 401K, and fully paid high quality medical, dental, and vision insurance for you and your family.

We’re backed by some of the best investors in tech and crypto: a16z Crypto Fund, Offline Ventures, Sound Ventures, Distributed Global, Redpoint, IDEO CoLab and many more key ecosystem investors and operators. See the full list here.

XMTP, Inc. is an equal opportunity employer. We value diversity at our company and do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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