React Jobs in Web3

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Job Position Company Posted Location Salary Tags

Chaoslabs

Remote

$144k - $164k

Consensys

Remote

$102k - $160k

Klink Finance

Remote

$87k - $110k

visa

Austin, TX, United States

$72k - $75k

rayassociates1

United Kingdom

$72k - $111k

ethereumcommunityfund

New York, NY, United States

$110k - $148k

tokyotechie

Remote

$90k - $105k

salesboxai

Remote

$63k - $90k

Kraken

United States

$127k - $203k

Alchemy

Remote

$135k - $240k

LI.FI

Remote

$66k - $120k

Solana Foundation

Remote

$91k - $105k

Binance

Taipei, Taiwan

Klink Finance

Remote

$87k - $93k

Consensys

Remote

$138k - $225k

Chaoslabs
$144k - $164k
Remote
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Description

Chaos Labs is the first automated, on-chain economic security system enabling crypto protocols to optimize risk management and capital efficiency while safeguarding user funds. We analyze protocol mechanics and scenario implications using world-class custom EVM simulations to provide actionable insights. Our platform is trusted by leading protocols, including Aave, GMX, dYdX, Venus, Jupiter and others, to manage and secure billions of dollars in assets.

We are seeking a proactive and results-driven Full Stack Engineer to join our AI team. Reporting directly to the Head of Product & AI you will play a critical role in working closely with our CEO and AI team to develop our AI product.


Responsibilities:

  • Design and build fullstack systems for our AI crypto agent.
  • Develop scalable APIs and backend services to support agent workflows.
  • Build high-performance, user-facing interfaces to visualize agent reasoning and surface insights, as well as enable real-time interaction.
  • Collaborate with AI researchers to integrate and productionize agent logic.
  • Connect and manage data pipelines from crypto sources.
  • Implement testing, monitoring, and performance best practices.
  • Stay up to date with LLM frameworks, crypto trends, and fullstack tools.

Requirements


  • 5+ years of fullstack development experience.
  • Strong proficiency in Python (FastAPI), JavaScript/TypeScript, Node.js, and React.
  • Proven experience building scalable APIs and web applications.
  • Solid knowledge of relational and non-relational databases.
  • Hands-on experience with LLMs and frameworks like LangChain or similar.
  • Familiarity with vector databases, RAG pipelines, and async programming.
  • Experience with crypto data and APIs.
  • Comfortable working in fast-paced, self-directed environments.


Preferred Qualifications:

  • Based in NYC with the ability to work from our Brooklyn office 5 days per week.
  • Experience building LLM-based agents in production environments.
  • Familiarity with prompt engineering, tool use orchestration (MCP), and AI agent design.
  • Experience with smart contracts, blockchain protocols, and/or DeFi systems.
  • Experience with embedding pipelines, semantic search, and RAG architectures.
  • Proficiency with profiling tools and performance optimization.
  • Track record of contributing to or thriving in collaborative, high-velocity teams.

Our Perks:

  • Competitive PTO (21 days) + sick days (7) + 8 observed US-company holidays
  • 100% employer-paid health benefit options (Medical, dental & vision insurance) for you and your dependents
  • FSA or HSA (pending on selected health insurance)
  • Thoughtful Parental Leave Policy
  • Corporate wellness programs with OneMedical, Teladoc, Talkspace, EAP
  • Career growth opportunities at a rapidly expanding, global technology company in an emerging field with personalized professional development
  • Pre-tax Commuter Benefits
  • Salary and seniority level commensurate with experience $144,000 - $164,000 USD

What does a React developer in web3 do?

A React developer in the context of web3 is a developer who is using the React JavaScript library to build user interfaces for decentralized applications (dApps) that run on the Ethereum blockchain

These dApps often use smart contracts to facilitate transactions and other interactions on the Ethereum network

Overall, the role of a React developer in web3 involves using your skills in React development to help build cutting-edge decentralized applications that leverage the power of the Ethereum blockchain

As a React developer in web3, some of your responsibilities might include:

  • Integrating the dApp with the Ethereum blockchain. This might involve using tools like web3.js and Ethers.js to connect to the Ethereum network and interact with smart contracts.
  • Building the user interface for a dApp using React. This could involve creating components for the various elements of the dApp, such as buttons, forms, and other input elements.
  • Implementing features that are specific to decentralized applications, such as handling cryptocurrency transactions and displaying data from the blockchain in a user-friendly way.
  • Collaborating with other members of the development team, such as blockchain engineers and designers, to ensure that the dApp functions properly and meets the needs of the end users.