A number produced without questions is a bad sign. A competent team responds with a list of questions: about integrations. A vendor that quotes without asking anything is custom software development pricing in uk a guess, and the gap becomes a change request later — at your expense.

Be wary of a gap between the people you meet and the developers actually assigned. Request specific people rather than roles in the contract, with wording covering replacement. A provider that only offers roles and refuses to name individuals is keeping its own flexibility at your cost.

Require commit-level visibility from day one. A partner that delivers code audit services only at milestones is inviting you to take delivery on faith. Regular commits and pull requests reveal the actual pace far better than a slide deck. This extends to the build and deployment setup: if there is no pipeline, quality claims are just talk.

Vague phrasing around intellectual property is never an oversight. The agreement must state in plain terms that all outputs produced under it belong to your business upon settlement of the relevant invoice. Check also the jurisdiction and how payments are structured: a large upfront payment with no deliverable attached removes the only leverage you have.

Last, look at how they communicate. Ask how many hours there will be with your timezone, which named person answers questions and on what response times. A few hours of overlap is normally sufficient; none at all turns a five-minute question into a lost day. Careless writing in the sales phase does not improve under delivery pressure.