A Swiss digital credit solutions provider: Legacy credit lifecycle platform fully re-architected and FINMA-compliant audit passed without revision in an 8-week engagement.

The Challenge

The company’s core credit lifecycle platform had been in production for over a decade. What had once been a reliable workhorse had become a liability: maintenance costs were rising, release cycles were slow, and the architecture was increasingly misaligned with modern software security and scalability expectations. In a FINMA-regulated environment, that misalignment is not merely a technical inconvenience it is a compliance risk. FINMA’s standards for outsourced banking technology are exacting. Any system modification must be auditable, traceable, and demonstrably aligned with the latest security benchmarks. Patching the existing architecture incrementally was not viable; the system required a complete redesign. Yet a full rewrite carried its own risk: disrupting continuity of service to dozens of active institutional customers. Beyond the technical problem, there was an organizational dimension. Modernization required aligning multiple internal stakeholders architecture teams, compliance officers, product owners around a shared blueprint that could survive external scrutiny. Reaching that alignment quickly, without losing momentum, was as difficult as the engineering work itself. The stakes were real. Failing to modernize meant falling behind on compliance readiness, increasing operational risk, and forfeiting the ability to scale the platform to meet the demands of a consolidating Swiss credit software market.

The Approach

Gradion engaged with a lean, senior team: one Technical Advisor, one PM/PO, and one AI Engineer. The scope was fixed at 8 weeks. The objective was not to complete the full rewrite but to define the architecture, validate it under external audit, and establish the delivery framework that would carry the client through the full transformation. Gradion worked directly alongside the client’s internal architecture team. Together, the teams identified the core KPIs for the modernized platform and developed a blueprint grounded in industry best practices and aligned with FINMA’s regulatory requirements from the first day. Rather than treating compliance as a downstream checkpoint, it was built into the architecture design itself. The resulting architecture was submitted to an independent security and compliance audit conducted by a Big Four firm. The design passed without requiring revision an outcome that validated both the technical quality of the blueprint and the rigor of the compliance-first methodology applied throughout. Delivery was structured using agile methodologies, with particular emphasis on Kanban and Flow Metrics. This gave the client’s diverse internal stakeholders clear visibility into progress, enabled precise planning, and prevented the coordination failures that typically slow large-scale transformation programs. The approach also ensured that the client’s own team fully owned the blueprint at the conclusion of the engagement a deliberate knowledge transfer rather than a hand-off.