What happened
SabPaisa engineers Chaitanya Malik and Anupam Kumaria detailed how AI coding tools like Claude Code and Codex reduced fintech infrastructure development timelines. Malik reported SabPaisa's "Exchange" payment routing platform took three weeks to build, a task previously estimated at over a year. He noted his general workflow for complex builds now takes one week, down from a year, by shifting to AI-assisted instruction. Kumaria added AI accelerates prototyping from weeks to hours, enabling teams to conduct 70-80% of feasibility testing independently; AI also aided in recovering corrupted transaction records.
Why it matters
Engineering teams can now deliver solutions significantly faster, fundamentally altering development timelines for platform engineers and founders. This mechanism shifts teams from executing predefined tasks to owning end-to-end solutioning, as features that once took weeks can now be prototyped in hours. The metric of reduced development time, from a year to one week for complex systems, creates a competitive constraint: a 100-person company effectively using AI can outperform a 1,000-person company that is not, highlighting the amplified productivity gains for those adopting AI tools.
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