
Fullstack Blockchain Developer
Department:Backend Developer
Type:REMOTE
Region:EU
Location:Portugal
Experience:Mid-Senior level
Estimated Salary:€50,000 - €90,000
Skills:
JAVASCRIPTTYPESCRIPTNODE.JSGORUSTPYTHONELIXIRPOSTGRESQLMONGODBNOSQLBLOCKCHAINETHEREUMSOLIDITYHARDHATWEB3.JSETHERS.JSWEB3.PYSTORYBOOKAWS
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Job Description
Posted on: October 21, 2025
Protofire is looking for an enthusiastic Middle/Senior Fullstack Developer who is deeply passionate about the Web3 space. Join our dynamic team engaged in projects with renowned companies such as (ex. Gnosis) Safe, Uniswap, Compound, Moonbeam, Cronos, Harmony, Oasis, Wemade, ImmutableX, Optimism, zkSync, zkScroll, Lido, ETH foundation and over 20 others. How you will make an impact:
- Develop both back-end and front-end web services and products across various blockchains and ecosystems, primarily EVM-compatible, catering to millions of web3 users.
- Gain a comprehensive understanding of the business aspects of projects and enhance them with innovative features and functionalities.
- Engage in effective communication with network/platform owners and the ecosystem community, actively contributing to the broader adoption of web3
- Contribute significantly to the open-source community
What you need to succeed:
- 5+ years of experience in software engineering
- 3+ years of commercial development experience with JS/Typescript, and any (the more the better) of the following: Node.JS, Go, Rust, Python, Elixir (a big plus)
- Proficiency with Postgress, MongoDB and/or nonSQL
- Knowledge about how a blockchain works, preferably Ethereum is a must
- Experience with Solidity
- Experience with some of the following libraries and utils: hardhat, web3.js, ethers.js, web3.py, storybook, etc
- Experience in AWS
- A desire to keep up with blockchain technology trends, readiness to research new, and a real interest in decentralization
Originally posted on LinkedIn
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