Fullstack Blockchain Developer

Sorry, this job was removed at 02:10 a.m. (CST) on Friday, Sep 26, 2025
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Hiring Remotely in Portugal
Remote
Information Technology
The Role
Description

Protofire is looking for an enthusiastic Middle/Senior Fullstack Developer who is deeply passionate about the Web3 space.

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.
  • 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.

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The Company
HQ: Pleasanton, CA
379 Employees
Year Founded: 2001

What We Do

Altoros is a 300+ people strong consultancy that helps Global 2000 organizations with a methodology, training, technology building blocks, and end-to-end solution development. The company turns cloud-native app development, customer analytics, blockchain, and AI into products with a sustainable competitive advantage. HQ: Silicon Valley (Pleasanton, CA). Development centers: US, Argentina, and Belarus. Representative offices: Finland and Norway. Talent: 91.5% of employees are senior- or mid-level engineers. Major customers: Allstate, WMG, Cisco, Autodesk, RightScale, Joyent, Couchbase, etc.

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