The moment depends on the onboarding process and how separation of duties is enforced.
An effective onboarding process is not just about getting new engineers set up. It defines boundaries. It ensures access follows need-to-know rules. And it stops one person from holding unchecked power over code, infrastructure, and deployment. Separation of duties draws clear lines: who writes code, who reviews it, who merges it, who deploys.
Without separation of duties, onboarding leaves holes. A single engineer might create, approve, and ship a change without review. This bypasses safeguards against malicious commits, accidental outages, or compliance violations. Mature teams bake this into onboarding so roles and permissions are set from day one.
A secure onboarding workflow creates structured access. Development environments differ from staging and production. Permissions map to specific responsibilities. Version control systems grant write access to feature branches, but require approved pull requests to merge into main. CI/CD tooling ensures only authorized accounts can trigger deploys.