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A solo protocol studio helping teams design, build and launch onchain financial systems.
Protocol architecture, smart contracts, interfaces and infrastructure — from idea to production.
Grant-funded development, ecosystem infrastructure and custom protocol engineering.
Balancer
Tezos
Taiko
Vana
Ecosystem grants, foundation collaboration and custom engineering work — including grant-funded development for Balancer and Tezos, and liquidity-locking infrastructure for Taiko.
Production protocols, ecosystem infrastructure and original Ceno systems — designed, built and operated end to end.
Built and operated a Balancer-based financial protocol across multiple networks, covering smart contracts, pools, governance, incentives, indexing, SDKs, frontends and deployments.
The work also led to grant-funded development for Balancer and Tezos, and custom liquidity-locking infrastructure for Taiko.
Built in collaboration with the Vana Foundation, DataDex provides trading, liquidity and market infrastructure for the Vana blockchain.
The project spans the DEX interface, pool management, routing, network integrations, subgraphs and market analytics.
An original Ceno protocol bringing together tokenized asset discovery, portfolio-style products, market data and multi-source execution.
Supporting ecosystem & protocol work — BALANCER · TEZOS · TAIKO · VANA · REVOLV
Four concrete engagements. Visible pricing, direct ownership and no hidden delivery team.
Turn a protocol idea into a buildable technical design.
Architecture, financial flows, risk analysis and an implementation roadmap.
I design and build onchain financial protocols from specification through launch.
Smart contracts, testing, integrations, interfaces, internal security review, audit support and deployment.
Upgrade, restructure or migrate an existing protocol without treating the surrounding system as an afterthought.
Contracts, permissions, integrations, state, liquidity and deployment handled together.
Ongoing senior technical ownership without adding a full-time protocol lead.
Architecture, reviews, security, roadmap decisions, audits and releases alongside your existing team.
Protocol Build is one scoped engagement around the agreed production destination — not split into separate “MVP” and “production” products.
Ceno performs internal security review and prepares systems for independent audit. Ceno is not an audit firm; third-party auditor fees are separate unless explicitly included in a proposal.
Fractional Protocol Lead is senior technical ownership — not staff augmentation or hourly Solidity development.
A solo studio for onchain finance.
I'm Stephen Horsfall, founder and sole operator of Ceno Studio.
I've been building onchain systems since 2018, working across protocol architecture, smart contracts, governance, incentives, indexing, interfaces and production deployments.
Ceno is deliberately small. When you hire the studio, you work directly with the person designing and building the system.
Architecture, mechanics and risk before implementation.
ARCHITECTURE / RISKContracts, infrastructure and interface developed as one system.
ENGINEERING / INTEGRATIONTesting, internal review and preparation for independent audit.
TESTING / AUDIT PREPDeployment, validation and production handover.
DEPLOYMENT / HANDOVERTell me what you're working on — a new protocol, an upgrade, a migration or fractional leadership. I read every brief personally and reply directly.
