Portfolio Jobs

Polychain Capital
Polychain Capital
Create a profile to get alerted when relevant jobs to you are posted by our network.

Senior Solidity Developer

Job Functions:
Software Engineering, IT, Data Science
Employment Types:
Full-time, Part-time, Contractor
75,000 – 150,000 USD per year
Posted on:

Senior Solidity Dev

About Overlay

Overlay is a DeFi protocol that allows users to trade nearly any streaming data - from crypto pairings to sneaker indexes to cultural, political, and social scalar data. The project started as an ambitious idea in 2017 and was brought to life in 2020 after winning a Chainlink-sponsored Hackathon.

We've raised $2M+ in strategic funding from well-known DeFi VCs like Polychain, ParaFi, 1kx, The LAO, and Metacartel Ventures to make Overlay a reality.

Our Team

We’re a tight knit team who values responsibility and autonomy - meaning you’ll take full ownership over smart contract development and have a huge impact on Overlay’s future growth and direction. You’ll be able to collaborate with our advisors and community DAO to shape future version releases of Overlay.

At our core we believe in a strong work-life balance with the ability to continuously ship. We promote a flat organizational structure with full transparency around protocol updates and we value empathetic communicators and teammates. We are both community and team first, so you will interview/chat with all of us to see if it is a good fit on both sides. Also, we love cats and cat gifs 😻

As a Senior Solidity Engineer you will be responsible for architecting and developing Overlay’s core and periphery smart contracts built on the Ethereum chain. You will work alongside frontend and data engineers to maintain and develop Overlay Protocol after launch, as well as ideating for future versions of Overlay. We’re looking for someone who’s comfortable with owning technical decisions around our core contracts.


  • 2+ years of experience as Solidity Engineer, with strong focus around implementing security best practices (huge plus: experience with developing price-manipulation resistant oracles)
  • Strong experience in test-driven development, preferably testing in Brownie or Hardhat
  • Experience deploying production contracts to Ethereum Mainnet
  • Experience with developing and testing contracts on testnets
  • High-level understanding of on-chain oracles/price feeds (ex. Chainlink, Uniswap V2/V3)
  • Strong economics or mathematical background
  • Comfortable working as a remote employee and owning your work
  • Eagerness to collaborate and communicate effectively (both internally and externally)
  • (BONUS:) Experience with Perpetual Swap products on CEXs or DEXs is a big plus

Our Stack

Solidity, Typescript, Python


  • Health, Dental, Vision Insurance fully covered
  • Competitive equity/token options
  • Unlimited Paid-Time Off (PTO)
  • Flexible work schedule (work when you want, where you want)
  • What other benefits are you looking for? Let us know.

Overlay, Inc. is an equal opportunity employer.

Get in touch

👉 community@overlay.market 👉 https://discord.gg/m2U5vSr4gD

See more positions at Overlay
We only use strictly necessary, first-party cookies on this job board. These are cookies that are necessary to deliver this service to you, or are necessary for Polychain Capital to understand how it is being used. Read our Cookie Policy.