Smart Contract Development: What Happens Before Deployment
Deployment is the last ten percent of contract work. Everything that determines whether a system survives contact with mainnet — threat modeling, access design, testing depth — happens before a single transaction is signed.
We begin with threat modeling: who are the attackers, what do they want, and which trust boundaries stand in their way? For a lending market the answers differ completely from a credential registry, so the model is written per system, reviewed by a second engineer, and updated whenever the design changes.
Access control comes next as an explicit matrix — every role, every permission, every function — executed against deployed bytecode on a fork, not just eyeballed in source. Most privilege bugs we catch are in upgrade paths and initializer chains, the parts nobody demos.
Then testing in three layers: unit tests for branch coverage, integration tests running contracts with indexers and frontends on forks, and stateful fuzz suites asserting invariants across thousands of randomized sequences. Fuzzing runs in CI on every change; a failing invariant blocks the merge.
Finally the deployment rehearsal: full deploy to a fork, constructor and proxy verification, permission checks, pause-drill. Only then do we schedule mainnet — with monitoring and pause runbooks live from the first block. Formal third-party audits, arranged through independent partner firms, slot into this sequence wherever your risk profile demands.