Meet the Client

Paratus is a specialist insurance provider operating at the intersection of renewable energy, infrastructure and complex risk modelling.

The organisation underwrites highly technical assets, including solar farms and emerging energy projects, where financial performance is driven by detailed assumptions, market variables and carefully constructed risk models.

Paratus’ competitive advantage centres on proprietary calculation methodologies. Their protected pricing frameworks, projection engines, and modelling tools underpin business operations and drive differentiation in a competitive market.

As the company grew, leadership determined that Paratus’ digital engagement must fully reflect its technical capabilities. Sonin’s partnership enabled this vision, creating a unified client portal alongside broker and consumer websites and an internal intranet, each tailored for its target audience yet upholding rigorous standards of quality and operational precision.

Key Features

Secure KYC Digital Onboarding

Clients complete structured Know Your Customer forms directly in the portal, eliminating manual documentation and streamlining onboarding.

IRR and Scenario Modelling Tools

Users can model renewable energy investments by adjusting market variables and viewing projected returns in real time. Complex financial assumptions are translated into intuitive visual outputs.

API-Driven Insurance Calculators

Front-end components integrate with proprietary back-end APIs, ensuring accuracy while maintaining strict protection of intellectual property.

Enterprise-Grade Authentication

Robust identity management and secure access controls provide confidence without compromising usability.

Responsive Data Visualisation

Rather than simplifying or removing complex charts on smaller devices, Sonin redesigned their presentation to ensure clarity and usability across desktop and mobile environments.

High-Performance React and Next.js Architecture

The portal achieved Lighthouse benchmark scores of 100 across performance, accessibility, best practices and SEO, a standard rarely reached in data-driven financial platforms.

The Challenge

The engagement spanned a broker website, a consumer website, a client portal, and an intranet. Each had its own requirements, but the portal presented the most significant and interesting design and engineering challenge.

Operating in a new category, Paratus brings a unique product to market, requiring a platform that guides clients from initial discovery through compliance, modelling, and transactions, while still meeting the performance demands of experienced power users.

Paratus maintains full control of its core systems, securing all pricing and risk models within protected APIs. This architecture demonstrates it is possible to deliver digital excellence and IP protection in regulated, high-sensitivity sectors, transforming a perceived constraint into a strategic advantage.

The challenge Sonin took on was to build a front-end experience, clear, responsive and reliable, that integrated seamlessly with those protected systems, without ever exposing the logic that underpins them.

Our Approach

A defining feature of this engagement was the way two technically capable teams worked together across a clearly defined boundary.

Sonin’s developers collaborated closely and transparently with Paratus technical leads, jointly validating integrations and security. This cooperative model offers organisations with sensitive IP a proven approach that delivers best-in-class front-end solutions without exposing critical systems.

The client portal leverages React and Next.js for performance and scalability, supporting future growth. Clear scope and disciplined management ensured consistent alignment, minimising risk and ensuring technical robustness throughout the project.

The Result

Today, the Paratus client portal is the central pillar of the digital ecosystem, enabling secure onboarding, advanced financial modelling, and streamlined client interactions through a unified interface. Automation has replaced disparate manual processes, increasing efficiency and operational visibility.

Alongside the portal, the broker and consumer websites reflect Paratus’ technical credibility and market position, while the intranet supports internal operations with the same quality standards applied throughout.

The platform delivers enhanced operational oversight, an improved client experience, and a scalable launchpad for continued business growth. Ongoing development ensures new workflows and capabilities are adopted seamlessly, extending value without disrupting existing successful operations.

The result is a dependable digital foundation that supports growth, safeguards proprietary logic and strengthens how Paratus engages with its clients, built through close, sustained collaboration between two teams who each brought something the other couldn’t.