Fuel Labs Tech Stack

Ethereum Layer 2 rollup optimized for high-performance DeFi applications

Software Development Ethereum 51–200 employees Founded 2019 Nonprofit

Fuel Labs builds an Ethereum Layer 2 rollup designed to handle high-throughput DeFi workloads. The tech stack—Sway, Ethereum, Hardhat, Foundry, ethers.js, viem, Alchemy, The Graph—mirrors a production blockchain infrastructure play rather than an application layer. Active projects span exchange infrastructure (o2 exchange, spot trading, market making, decentralized orderbook) and cross-chain integrations, suggesting the company is shifting from core protocol toward monetizable DeFi products. Hiring remains minimal (no roles posted in the last 30 days) but skews senior and product-focused, indicating consolidation around shipping rather than scaling headcount.

Tech Stack 20 technologies

Core StackGraphQL React Next.js Vue TypeScript JavaScript Sway Ethereum Ethereum Virtual Machine MetaMask WalletConnect REST RPC Hardhat Foundry Solidity ethers.js viem Alchemy The Graph

What Fuel Labs Is Building

◆Challenges

Growing trader base
Functional markets
Protocol limitations
Mvp to profitability
High performance requirements
Scaling blockchain applications
Scaling ethereum throughput

▲Active Projects

O2 exchange
Spot trading platform
Market making system
Cross-chain integrations
Decentralized orderbook
High-performance dapp development
High-performance decentralized applications
Cross-chain bridging
Account abstraction
Core defi product development

Hiring Activity

Minimal15 roles · 0 in 30d

Department

Product

Engineering

Seniority

Senior

Manager

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About Fuel Labs

Fuel Labs operates an Ethereum Layer 2 rollup designed to address Ethereum's throughput constraints for DeFi applications. The company frames itself as a "Rollup OS," positioning the infrastructure as a foundation for high-performance decentralized applications rather than a monolithic blockchain. Core challenges include scaling blockchain application performance, managing protocol limitations, and transitioning from early-stage MVP toward revenue-generating products. Active development spans both core infrastructure work (account abstraction, cross-chain bridging) and native DeFi surfaces (trading platforms, market making systems, orderbook implementations). The organization is UK-based with distributed hiring across Europe and Brazil.

HeadquartersEthereum

Company Size51–200 employees

Founded2019

Hiring MarketsGermany, Switzerland, Portugal, France, Greece, Brazil

Frequently Asked Questions

What is Fuel Labs building?

Fuel Labs builds a Layer 2 rollup for Ethereum focused on high-performance DeFi. Active projects include o2 exchange, spot trading platforms, market making systems, decentralized orderbooks, and cross-chain integrations.

What tech stack does Fuel Labs use?

Fuel's stack includes Sway (proprietary language), Ethereum, EVM, MetaMask, WalletConnect, Hardhat, Foundry, Solidity, React, Next.js, TypeScript, ethers.js, viem, Alchemy, and The Graph.

Where does Fuel Labs hire?

Fuel Labs actively hires in Germany, Switzerland, Portugal, France, Greece, and Brazil. Current open roles (15 total) are concentrated in product and engineering with senior and manager-level focus.