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Secure Solidity smart contract and escrow development for Web3

Secure Solidity smart contract and escrow development for Web3

Web and tech · delivered in 3-14 days

What you receive

PackagePrice (USD)DeliveryIncludes
Basic Smart Contract625.993 daysA single secure contract for straightforward logic such as a basic escrow or token, with clean code, initial testing, testnet deployment and 1 revision
Standard Escrow & Mechanism1875.997 daysA full contract system for escrow or agent-economy mechanisms, gas-optimised, with thorough security testing via Foundry or Hardhat, deployment to Base Sepolia and 3 revisions
Premium Web3 Architecture3125.9914 daysA complete architecture for complex DeFi or agent-economy systems, spanning several linked contracts, in-depth security review, full test coverage, support for frontend integration and 5 revisions

You will need to supply the domain the order relates to and a brief describing your requirements.

PBN.LTD provides Solidity development for teams that need dependable, gas-conscious smart contracts for their Web3 products.

Our focus areas are escrow systems, DeFi protocols and agent-economy mechanisms across Ethereum, Base and other EVM-compatible chains. In this context, an agent economy means autonomous software agents transacting and cooperating on-chain, which calls for solid escrow and incentive logic to keep that cooperation trustworthy.

What is covered

  • Smart contract development using established tooling such as Foundry and Hardhat, written to be clean, secure and efficient on gas
  • Escrow and incentive logic for staking and economic guarantees, so participants have reason to act honestly
  • A security-led approach aimed at reducing risks such as reentrancy issues, protecting user funds
  • Deployment and testing on Base Sepolia and other test networks
  • Coordination with your frontend and data teams so the contracts integrate cleanly

How we work

  1. We clarify your intended mechanism and objectives together
  2. We design the contract structure and logic flow
  3. We write the code and build test suites to confirm it behaves as intended
  4. We deploy to the network you choose, for example Base Sepolia
  5. We hand over the code, documentation and support for connecting it to your frontend

Approach

We treat each contract as an economic foundation, not just a piece of code, drawing on mechanism-design thinking to understand the purpose behind a system as well as its mechanics. Communication stays clear throughout, including on tighter timelines when needed.

Tools and networks

  • Languages: Solidity, JavaScript and TypeScript
  • Frameworks: Foundry, Hardhat, OpenZeppelin
  • Networks: Ethereum, Base and other EVM chains

Whether you run a small startup or an established team, this service can help move a Web3 concept into a working, security-focused product, including turnaround as quick as 3 days for simpler builds.

What happens after you buy

Your order opens its own thread here the moment it is paid, and everything about that order - questions, changes and the final report - happens in it.

Questions people ask

Do you offer refunds if I'm not satisfied with the smart contract?

We follow a clear revision policy: if the delivered contract does not match the agreed specification, we revise it until it does. Because blockchain deployments are permanent, we are unable to offer refunds once a contract has gone live on the mainnet.

What is your turnaround time for urgent projects?

Tighter deadlines can be accommodated depending on the contract's complexity. A basic escrow mechanism can typically be delivered within 3 days, while more involved agent-economy systems generally take 7-14 days. Get in touch before ordering so we can agree the exact timeline.

Do you need my private keys or wallet login details to deploy the contract?

No. We will never ask for your private keys or seed phrases. You can deploy the contract yourself, or we can hand over the compiled code and deployment scripts so you deploy from your own secure wallet. Keeping your assets under your control is central to how we work.

Will this smart contract work on the Base Sepolia network?

Yes. We work across EVM-compatible chains, including Base, Base Sepolia and Ethereum, and we tune the code for gas efficiency on the Base network, together with full instructions for deployment.

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