We built the feature in two days. Making it reliable took two weeks.

Source: Dev.to

Development Timeline

• The feature worked:
  • Button clicked
  • Data saved
  • Response returned
  • Done.

Production Challenges

• Duplicate requests
• Users refreshing mid‑action
• Slow external systems
• Partial failures between workflows

Observations

• Code was working.
• System behavior was not.
• Most development time is not spent building the feature.
• It is spent making sure the feature keeps working when real users, real data, and real systems hit it at the same time.
• This is something we deal with constantly at BrainPack. Building the feature is usually the easy part. Making it reliable inside existing enterprise workflows is the real work.