How Helios 10x users, zero rewrites

A fintech team scaled onboarding from pilot to production on the same codebase we shipped. Helios had product-market fit and a pilot onboarding flow held together by scripts. With a Series A closing, they needed onboarding that could take ten times the volume, pass compliance review, and not slow the team down.

~ The approach

Audit before building. Two weeks mapping the existing flow, the compliance checks, and the failure points, so we fixed what mattered first.

Rebuild the core, keep the product. We replaced the scripts with a typed, tested onboarding service behind the same interface users already knew.

Hand over to the new team. As Helios hired, we paired with their engineers and moved into a Tech Partner role for architecture decisions.

What we shipped

• Onboarding and KYC service

  A typed, tested service that verifies new users in minutes.

• Compliance audit trail

  Every decision logged and exportable for regulators and partners.

• Observability and alerting

  Dashboards and on-call alerts before users notice a problem.

• CI/CD with preview environments

  Every pull request gets its own environment and automated checks.

• Load-tested infrastructure

  Proven at ten times launch volume before the Series A closed.

• Hiring support

  Interview loops and pairing for the first in-house engineers.

The results

10x

Users since launch

99.98%

Onboarding uptime

4 min

Median time to verified

Building something similar? Start a project or read how Cove Studio reached 120 paying teams.