A number produced without questions should be treated as a red flag rather than good service. A competent team responds with questions first: about integrations. A supplier that quotes without asking anything is pricing a guess, and crypto igaming software development that guess becomes a change request later — at your expense.

Be wary of any distance between the engineers on the sales call and those who eventually appear in the repository. Ask for the names and CVs of the actual team in the agreement, with a provision covering replacement. A vendor that talks only about a pool of resources fixed bid or time and materials never names people is keeping the option to staff you with whoever is free.

Require commit-level visibility from the first week. A partner that shows nothing between demos is inviting you to accept a black box. Regular commits and pull requests tell you who is really on the project far better than any status report. The same applies to the CI pipeline: if nothing runs automatically, quality claims are just talk.

Vague phrasing around code ownership is rarely an oversight. The agreement should state in plain terms that all deliverables become the property of your business as they are paid for. Check also which country's law applies and the payment schedule: a request for most of the money up front with nothing due in return for weeks eliminates your only leverage.

Lastly, examine communication. Ask what overlap the teams will share each day, who handles questions and on what response times. A few hours of overlap is usually enough; no overlap turns every clarification into a twenty-four hour round trip. Careless writing in the proposal rarely improves later.