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Engineering the systems behind on-chain finance

Protofire is an engineering firm that has designed, built, and operated on-chain infrastructure since 2016, for Web3 protocols, DeFi platforms, and institutions bringing real assets on-chain.

Protocols & networks

Core infrastructure, developer tooling, and long-term maintenance.

DeFi platforms

Smart contracts, oracles, and the backend behind live products.

Institutions & RWA

Real assets and regulated products, brought on-chain.

250+
Projects delivered since 2016
$2B+
In assets secured across 120+ networks
1M+
Developers rely on our open-source dev tools
Trusted by 60+ networks and 95+ protocols

How an engagement runs: tell us what you are building, an engineer reads it, and a written proposal follows one business day after the call. How we work →

Our story

From a small Ethereum team in 2016 to infrastructure for protocols, DeFi platforms, and institutions.

2016

Born as a blockchain spin-off of Altoros, building for early Ethereum projects.

2017

Long-term partnerships begin with Gnosis, Chainlink, Filecoin, and The Graph.

2019

RPC, indexing, Safe multisig, and oracles, delivered through a DAO contribution model.

2022

Major builds for Balancer, API3, and Simplestate.

2023

Grants from the Ethereum Foundation, Optimism, and Aave; open-source dev tooling and Balancer's ve8020 launchpad.

2024

New customers including Aethir and Truflation, and new lending and DeFi product lines.

2026

Doubling down on RWA, TradFi, and institutional on-chain infrastructure.

Selected now

2016

Selected now

2017

Selected now

2019

Selected now

2022

Selected now

2023

Selected now

2024

Selected now

2026

See the conferences, hackathons and rooms we have shown up in since 2016, on the events page →

Long-term partners

The ecosystems we have helped build, and the work behind each.

The Graph logoThe Graph
In the ecosystem since 2019 · 3+ engineers

Built 30+ subgraphs and counting, and run one of the largest indexer nodes in the network.

Filecoin logoFilecoin
Node infrastructure since 2020 · 2+ engineers

12 million daily mainnet requests, 99.58% average yearly API uptime, and 229,258 total unique IPs.

Gnosis ecosystem logoGnosis ecosystem
Contributor since 2018 · 6+ engineers

Contributed to Safe (the multisig for managing digital assets collectively), Gnosis Auction, CowSwap DEX and the Explorer apps, the Conditional Token framework, and Omen, a decentralized prediction market.

Chainlink logoChainlink
Core contributor since 2021 · 4+ engineers

Integration acceptance testing across 7+ networks and 20+ External Adapters that developers use to feed data into their smart contracts, plus tooling to spin up a local Chainlink node with Foundry.

Swarm Markets logoSwarm Markets
Partner since 2020

Compliant multi-asset infrastructure for a regulated environment: KYC, a multi-tier permissioning system, and an on-chain AMM offering Swap, Pool, and OTC trading with self-custody and on-chain transparency.

Large Auditing Company
Since 2019 · 10+ engineers

Delivered 15+ proof-of-reserve and real-time attestation deployments for asset-backed tokens, and spun up and maintain 25 nodes across 11 networks.

Our team

Since 2016, this team has been building the open financial infrastructure that protocols, fintechs, and banks now run on.

4.8 on ClutchVerified client interviews; quality rated 5.0 of 5.Read the reviews →

Apply to build with us

Tell us what you are building; a link helps but is not required. We talk it through on a call, and a written proposal follows within one business day of the call.

Hi, my name's

Luis Medeiros

Protofire 2026. All rights reserved

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