Solidity Development

WAYF is a Solidity Development Agency:
Smart Contracts. Serious Stakes.

Smart contracts that handle real money. Built with the caution that responsibility requires.

Solidity development isn't like other software. Bugs aren't fixed with patches—they're exploited for millions. Deployed code can't be easily changed. The stakes are different, and so is our approach: conservative architecture, comprehensive testing, and an honest assessment of whether a smart contract is even the right solution.

What We Build

Smart contracts for Ethereum and EVM-compatible chains. Token contracts, governance systems, staking mechanisms, escrow logic. The on-chain components that power decentralized applications.

DeFi protocol components. Lending pools, automated market makers, yield strategies, cross-protocol integrations. We understand the composability of DeFi and the risks it introduces.

NFT infrastructure. Minting contracts, marketplace integrations, royalty mechanisms, on-chain metadata. Beyond basic ERC-721—custom logic that serves specific collection requirements.

DAO tooling. Voting mechanisms, treasury management, proposal systems. Governance that actually works, not just governance that looks good in a pitch deck.

Protocol integrations. Connecting your application to existing DeFi protocols, oracles, bridges. Working with the Ethereum ecosystem rather than rebuilding it.

What we build less of: speculative tokens with no utility, contracts designed primarily to extract value from users, or projects where the smart contract is a solution looking for a problem. We're selective. The reputation cost of participating in exploitative projects isn't worth the revenue.

Why Us

Security as Foundation

We've seen what happens when smart contract development is treated like regular web development: exploits, drained treasuries, destroyed protocols. Our approach starts with threat modeling and carries through to comprehensive testing, formal verification where appropriate, and preparation for third-party audits. Security isn't a phase—it's the entire methodology.

Security as Foundation

We've seen what happens when smart contract development is treated like regular web development: exploits, drained treasuries, destroyed protocols. Our approach starts with threat modeling and carries through to comprehensive testing, formal verification where appropriate, and preparation for third-party audits. Security isn't a phase—it's the entire methodology.

Full-Stack Web3

Smart contracts don't exist in isolation. They need frontends that users interact with, backends that index events, infrastructure that monitors transactions. We build complete applications: React frontends using ethers.js or viem, backend services that track on-chain state, deployment pipelines that handle the complexity of multi-chain releases.

Smart contracts don't exist in isolation. They need frontends that users interact with, backends that index events, infrastructure that monitors transactions. We build complete applications: React frontends using ethers.js or viem, backend services that track on-chain state, deployment pipelines that handle the complexity of multi-chain releases.

Full-Stack Web3

Smart contracts don't exist in isolation. They need frontends that users interact with, backends that index events, infrastructure that monitors transactions. We build complete applications: React frontends using ethers.js or viem, backend services that track on-chain state, deployment pipelines that handle the complexity of multi-chain releases.

Honest About the Space

Web3 has real applications and substantial hype. We'll tell you if your use case genuinely benefits from decentralization or if you're adding blockchain complexity for marketing reasons. Some problems need smart contracts. Many don't. We help you figure out which.

Honest About the Space

Web3 has real applications and substantial hype. We'll tell you if your use case genuinely benefits from decentralization or if you're adding blockchain complexity for marketing reasons. Some problems need smart contracts. Many don't. We help you figure out which.

Range of Deployment

We've built for DeFi protocols handling significant TVL and for projects launching their first contract on testnet. Enterprise blockchain requirements—compliance, upgradability, access control—differ from startup experimentation. We understand both contexts.

Range of Deployment

We've built for DeFi protocols handling significant TVL and for projects launching their first contract on testnet. Enterprise blockchain requirements—compliance, upgradability, access control—differ from startup experimentation. We understand both contexts.

How We Work

Solidity projects require more upfront design than typical software. Changing deployed contracts is difficult or impossible. We invest heavily in specification, threat modeling, and architecture before writing production code.

Development follows a deliberate sequence: specification and threat modeling first. Test suites that encode expected behavior. Implementation against those tests. Internal review. Testnet deployment and verification. External audit coordination. Mainnet deployment with monitoring.

When we work with existing protocols, we start with a thorough assessment. Code review, architecture analysis, identification of risks and technical debt. Some protocols need optimization. Some need security improvements. Some need honest conversations about fundamental design choices. We provide clarity on which.

What makes Solidity projects different: the immutability. Traditional software can be patched; smart contracts often can't. Upgradability patterns exist but introduce their own complexity and trust assumptions. We design for the permanence that blockchain implies—or implement upgrade patterns when the tradeoffs make sense.

What stays constant: direct communication about risk. If we see a vulnerability, you hear about it immediately. If a design choice introduces systemic risk, we raise it—even if the timeline implications are uncomfortable.

Technical Approach

Security-First Development

Every contract gets threat modeling before implementation. We identify attack vectors, analyze economic incentives, consider composability risks. Test suites include not just happy paths but adversarial scenarios—reentrancy attempts, front-running, oracle manipulation, governance attacks.

Gas Optimization That Doesn't Sacrifice Clarity

Efficient contracts cost users less. But optimization that makes code unreadable or introduces subtle bugs isn't optimization—it's false economy. We balance efficiency with auditability.

Gas Optimization That Doesn't Sacrifice Clarity

Efficient contracts cost users less. But optimization that makes code unreadable or introduces subtle bugs isn't optimization—it's false economy. We balance efficiency with auditability.

Comprehensive Testing

Unit tests for individual functions. Integration tests for contract interactions. Fuzz testing for edge cases. Fork testing against mainnet state. Formal verification for critical invariants when the protocol justifies the investment. Test coverage isn't a vanity metric—it's confidence in behavior.

Upgrade Patterns Chosen Deliberately

Transparent proxies when upgradability matters and admin trust is acceptable. UUPS when you want upgrade logic in the implementation. Immutable contracts when decentralization matters more than flexibility. The choice depends on your protocol's values and threat model.

Upgrade Patterns Chosen Deliberately

Transparent proxies when upgradability matters and admin trust is acceptable. UUPS when you want upgrade logic in the implementation. Immutable contracts when decentralization matters more than flexibility. The choice depends on your protocol's values and threat model.

Multi-Chain Considerations

EVM equivalence isn't perfect. Gas costs differ, opcodes behave differently, ecosystem integrations vary. We test on target chains, not just mainnet forks, and account for the differences in deployment and monitoring.

Audit Preparation as a Practice

Clean code, comprehensive documentation, clear specification of intended behavior. When the external audit happens, auditors spend time finding real issues, not deciphering what the code was supposed to do.

Audit Preparation as a Practice

Clean code, comprehensive documentation, clear specification of intended behavior. When the external audit happens, auditors spend time finding real issues, not deciphering what the code was supposed to do.

Monitoring and Incident Response

On-chain monitoring for anomalous transactions. Alerting systems that catch exploits early. Runbooks for incident response—pause mechanisms, communication plans, recovery procedures. The security work doesn't end at deployment.

What We See Go Wrong

The most common pattern: treating smart contracts like web applications. Move fast, iterate in production, fix bugs with deploys. This mentality has cost protocols hundreds of millions of dollars. Smart contract development requires a different mindset—closer to aerospace engineering than web development.

We also see protocols skip audits or treat them as checkboxes. An audit from a reputable firm takes weeks, costs significant money, and often reveals issues that require substantial rework. Teams that budget neither the time nor the money end up with false confidence.

Another pattern: excessive complexity. Every line of Solidity is attack surface. Gas optimization that obscures logic, clever patterns that auditors struggle to verify, architecture that's sophisticated beyond what the problem requires. Simple contracts with clear logic are easier to secure. We push for simplicity.

We also see teams misunderstand upgradability. Proxy patterns solve the immutability problem but introduce trust assumptions—whoever controls the upgrade key controls the protocol. For some applications, that tradeoff is fine. For "decentralized" protocols, it undermines the entire value proposition. We help teams think through these implications.

We're not here to criticize how protocols got where they are. Market pressure, limited budgets, and genuine uncertainty all contribute. We assess what exists, identify the risks, and figure out the safest path forward.

Who We Work Well With

Teams building protocols where decentralization matters—not as a buzzword but as a genuine design requirement. Applications where trustlessness, censorship resistance, or permissionless access provide real value.

Also: established protocols that need security improvements, gas optimization, or feature development from engineers who understand the stakes. And traditional companies exploring blockchain for legitimate use cases—supply chain verification, credential systems, settlement layers—where the technology fits the problem.

What all share: understanding that smart contract development is slower and more expensive than traditional development, and accepting that tradeoff because the security requirements justify it.

Who We're Not For

If you want smart contracts developed quickly and cheaply, without the testing and review that security requires, we're not a fit. The cost of doing this work properly is less than the cost of an exploit. Every time.

If your project is designed to extract value from users—whether through economic manipulation, deceptive tokenomics, or pump-and-dump mechanics—we won't participate. The Web3 space has enough bad actors; we don't contribute to the problem.

If you're adding blockchain because it sounds innovative, without a clear answer to "why does this need to be on-chain?"—we'll have that conversation first. Sometimes the answer clarifies a genuine use case. Sometimes it reveals that traditional architecture would serve you better. Either outcome is useful.

Compounding Trust

Founders, CTOs, and Procurement Officers choose WAYF.
Hundreds of 0 → 1 launches · Fortune 500 partnerships · Global public institution contracts

Founders, CTOs, and Procurement Officers choose WAYF. Hundreds of 0 → 1 launches · Fortune 500 partnerships · Global public institution contracts

Client spotlight

Client spotlight

Council of Europe Development Bank

Billions of Euros in capital deployed each year to support social cohesion.

A grid background image

Fortune 500:
Ingersoll Rand

Worldwide manufacturer and distributor of unrivalled compressed air solutions.

A grid background image

Client spotlight

Client spotlight

Council of Europe Development Bank

Billions of Euros in capital deployed each year to support social cohesion.

A grid background image

Fortune 500:
Ingersoll Rand

Worldwide manufacturer and distributor of unrivalled compressed air solutions.

A grid background image

Client spotlight

Client spotlight

Council of Europe Development Bank

Billions of Euros in capital deployed each year to support social cohesion.

A grid background image

Fortune 500: Ingersoll Rand

Worldwide manufacturer and distributor of unrivalled compressed air solutions.

A grid background image

Let's talk

Have a smart contract project—new protocol development, existing contract work, or a question about whether blockchain technology fits your use case?

Let's talk

Have a smart contract project—new protocol development, existing contract work, or a question about whether blockchain technology fits your use case?

Let's talk

Have a smart contract project—new protocol development, existing contract work, or a question about whether blockchain technology fits your use case?