Fintech customer portal

A secure self-serve experience built on a durable API layer and rigorous access controls.

Duration 4 months
Team 4 engineers
Performance API response −50%

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Context & challenge

The conditions that made the engagement necessary.

Customers depended on support for routine tasks, while internal systems were not designed for safe external exposure.

Approach & solution

How delivery was structured and what the platform needed to support.

Solution

We designed a portal experience backed by purpose-built APIs, explicit authorization models, and audit-friendly workflows that mirrored real policy constraints.

Architecture themes

API gateway
OAuth 2.0
Audit trail

Outcome & proof

Published outcomes for this case study — not extrapolated beyond the source notes.

Higher self-serve completion for core journeys
Lower support load on routine requests
Clear audit trail for sensitive actions

60% reduction in routine support tickets

API response −50%

Technology

Stack used for the engagement described here.

React
TypeScript
Go
PostgreSQL
AWS

Portfolio themes that map to this engagement.

Web design
Brand web experience
Visually stunning, user-friendly web experiences tailored to brand and audience — from design systems through production deployment.
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