A number produced without questions counts as a red flag rather than good service. Any serious team will come back with a list of questions: about users and volumes. A provider that commits to a figure before understanding the scope is guessing, and that guess resurfaces as a change order — and you will pay for it.
Watch for docker web development company a gap between the people you meet and the developers actually assigned. Ask for specific people rather than roles in the contract, with a provision about substitutions. A team that talks only about roles and never names people is keeping its own flexibility at your cost.
Require the source repository from day one. A provider that hands over code only at milestones is inviting you to take delivery on faith. Visible commits show you the actual pace far better than a weekly report. The same applies to the automated test suite: if nothing runs automatically, best python development company assurances about quality remain unverifiable.
Vague contract language around IP is never a formality. The contract must state explicitly that all outputs produced under it transfer to the client as they are paid for. Also check the governing law and the milestone terms: a large upfront payment with no deliverable attached eliminates your only leverage.
Last, examine how they communicate. Ask what overlap the teams will share with your working day, who handles your questions and on what response times. Four hours of overlap is usually enough; zero overlap stretches a five-minute question into a lost day. Sloppy written English in the proposal rarely improves once the work starts.