A quote that comes back within a day should be treated as a red flag rather than good service. A competent team responds with clarifying questions before any number: about who owns the data and what happens on failure. A provider that commits to a figure with no clarification is probably guessing, and the gap resurfaces as a change order — at your expense.
Look out for a gap between the engineers on the sales call and the developers actually assigned. Insist on specific people rather than roles in the statement of work, with wording that requires notice before anyone is swapped. A vendor that talks only about a pool of resources and will not commit to individuals is reserving the option to staff you with whoever is free.
Require the source repository from the first week. A provider that hands over nothing between demos is inviting you to accept a black box. Daily commits reveal who is really on the project far better than any status report. The same applies to the CI pipeline: if nothing runs automatically, assurances about quality remain unverifiable.
Loose phrasing around intellectual property is rarely an oversight. The document should state plainly that the code, designs and documentation become the property of your business upon settlement of the relevant invoice. Check also which country’s law applies and retail ecommerce software development company the payment schedule: a large upfront payment with no milestone tied to it removes the only leverage you have.
Last, pay attention to communication. Ask how many hours there will be with your working day, who is expected to answer questions and within what is langchain and rag time. Four hours of overlap generally works; none at all stretches each small question into a lost day. Sloppy written English software development company in eastern europe the sales phase will not improve under delivery pressure.