Founding Full Stack Engineer

Seal
New York, NY

Why Seal


Seal is building out a P2P prediction protocol where bets are made with friends, not against a faceless house. We offer a fully decentralized, transparent, and user-centric betting experience, one without geographic restrictions, stacked odds, and slow payouts. Started by repeat founders from Y Combinator, Facebook, Brave, and MIT – our mission is to empower users to predict in a fair and competitive environment.

Why you should join

Culture is paramount for us. Our values are:
  • User-obsessed

  • Operate from first principles

  • Data-autonomous (go beyond data-driven)

  • The best ideas win

  • Transparency remains the ultimate disinfectant

  • Be comfortable being uncomfortable

  • Bias for action

The Role

Seal is looking for its founding full stack engineer. We are looking for an experienced engineer to help us build the next generation of tools for exploring and interacting with smart contracts. You will be responsible for designing and implementing systems/protocols that make Ethereum the bedrock of world finance.

Responsibilities

  • Write high quality and well tested code; scrutinize over other team members’ code

  • Architect, build, deploy and maintain the infrastructure underlying Seal’s product offerings

  • Collaborate with the design and product teams to craft first-class user experiences

  • Participate and own product improvement ideas from start to finish

  • Author or contribute to Ethereum Improvement Proposals

Minimum Requirements:

  • Based in the US

  • 2+ yrs of engineering experience at a fast-pace startup

  • Extensive experience shipping significant full stack products all the way to launch

  • Demonstrated proficiency in TypeScript, JavaScript, Solidity, Go, Rust

  • Supremely curious

  • Web3 native

  • Excellent oral and written communication skills


Preferred Qualifications

  • Highly skilled in building with cloud infrastructure, networking, or orchestration with AWS (e.g. Docker, ECS, CDK, DynamoDB)

  • Extensive knowledge on the EVM and general Ethereum infra

  • Experience writing smart contracts

N.B. We welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement.

Benefits

  • Great compensation package (salary + equity)

  • Full health, dental, and vision insurance

  • Generous home-office stipends

  • Unlimited PTO

Posted 2026-02-10

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