I have a written specification for a escrow contract (roles, limits, events and upgrade rules are all described). I need it implemented in Solidity with unit and fuzz tests, deployed to Sepolia with a verification script, and explained in comments so my team and the auditors can follow it. No mainnet deployment is part of this job.

The front end and back end teams are blocked until addresses and ABIs exist.

Key Deliverables:

• Scoping, Setup & Test Environment: Reviewing the spec or existing setup, preparing a testnet or staging environment, and agreeing the plan.

• Implementation & Security Review: Completing the main work with tests, then reviewing keys, permissions, rate limits and failure cases.

• Production Rollout & Handover: Approved release to production, verification on explorer or monitoring, and a short runbook for the team.

Requirements:

• Demonstrated experience with Solidity, Foundry, Smart Contract Testing, OpenZeppelin

• Async communication preferred with milestone check-ins.

• Never ask for or accept private keys or seed phrases; work with read-only access, testnets and a multisig or the client's own signers.

• Mainnet deployment or production traffic changes only after we approve the result on testnet or staging.

• Source code and contract addresses must be verifiable by third parties (verified on the block explorer where relevant).

Ready to hire as soon as we review qualified candidates. Please share your approach and availability.

[!NOTE]

Notice: Web3 & Crypto projects on BotDigit cover software, infrastructure and content work only. Freelancers must never ask for private keys or seed phrases, and clients are responsible for the legal and regulatory status of their token, airdrop or service where they operate. Nothing here is investment advice.