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Solid is a San Francisco fintech startup pioneering Banking as a Service (BaaS), enabling businesses to launch white-label banking, debit cards, credit cards, and financial products through a unified platform.
Over a multi-year partnership, we worked alongside the founding team to shape the brand, product, and platform from the ground up—supporting its evolution from an early-stage startup into a scalable fintech ecosystem.
Our mission was to take Solid from 0 to 1, then 1 to 10 — building brand, product, and platform to scale.
by defining Banking as a Service.
through the platform we helped build.
across multiple customers and use cases.
by building foundations to grow with.
Simplified complex business onboarding and account management by organising company details, ownership, banking information, and compliance records into a structured dashboard interface.
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Crafted a bold visual identity with a vibrant colour system, distinctive typography, and accessible branding that established Solid as a modern fintech category leader.
Developed a custom illustration style to communicate complex financial concepts, onboarding journeys, and product capabilities with clarity and personality.
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Designed intuitive banking experiences that enabled businesses to manage accounts, transactions, cards, and payments through a unified mobile interface.
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Simplified complex business onboarding and account management by organising company details, ownership, banking information, and compliance records into a structured dashboard interface.
Simplified complex business onboarding and account management by organising company details, ownership, banking information, and compliance records into a structured dashboard interface.
Crafted a bold visual identity with a vibrant colour system, distinctive typography, and accessible branding that established Solid as a modern fintech category leader.
Crafted a bold visual identity with a vibrant colour system, distinctive typography, and accessible branding that established Solid as a modern fintech category leader.
Developed a custom illustration style to communicate complex financial concepts, onboarding journeys, and product capabilities with clarity and personality.
Developed a custom illustration style to communicate complex financial concepts, onboarding journeys, and product capabilities with clarity and personality.
Designed intuitive banking experiences that enabled businesses to manage accounts, transactions, cards, and payments through a unified mobile interface.
Designed intuitive banking experiences that enabled businesses to manage accounts, transactions, cards, and payments through a unified mobile interface.
For Solid, we built brand and platform from scratch — enabling a new financial category.
established Banking as a Service anew.
$80M raised across the journey.
grew from 0 to 10K customers.
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Mapped the end-to-end Banking as a Service ecosystem, defining customer journeys, platform capabilities, and interactions across the entire financial infrastructure.
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Designed intuitive mobile banking experiences for onboarding, account management, cards, and transactions, making everyday financial tasks simple and accessible.
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Built operational dashboards that enabled businesses to manage users, accounts, cards, transactions, and financial activities from a single interface.
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Created adaptable banking experiences that could be customised for partner brands while maintaining a consistent product foundation.
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Developed high-fidelity prototypes to validate key banking journeys, interactions, and platform behaviour before implementation.
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Designed developer-facing experiences that simplified API integration, accelerating product adoption and partner onboarding.
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Explored multiple interface directions across banking workflows to refine usability, navigation patterns, and interaction models.
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Established a flexible brand identity through logo systems, colour palettes, and visual assets that positioned Solid as a modern fintech platform.
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Defined logo construction, usage guidelines, and descriptor standards to ensure consistent brand application across digital and physical touchpoints.
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Expanded the visual language into reusable patterns, layouts, illustrations, data visualisations, and branded assets for consistent product communication.
Defined the core visual language through typography, colour, imagery, and usage principles to create a cohesive and recognisable brand identity.
Solid’s platform brought together banking, cards, payments, account management, compliance, and business onboarding within a single ecosystem. NetBramha mapped the end-to-end BaaS experience and designed intuitive workflows across mobile, web, operational dashboards, and partner-facing experiences, helping make complex financial infrastructure easier to navigate.
This required balancing the needs of businesses, financial partners, and end users while keeping the underlying experience consistent. Companies looking for a UI/UX design studio in San Francisco can work with NetBramha on similarly complex fintech and enterprise products.
Banking as a Service platforms have to bring together complex financial operations while supporting multiple customers, use cases, and partner brands. For Solid, NetBramha worked across onboarding, account management, cards, transactions, payments, compliance, and business operations to create connected experiences across the platform.
The challenge is making sophisticated financial infrastructure feel simple without hiding the functionality users need. This makes strong fintech UX design particularly important when building products that need to serve businesses and their customers at scale.
Solid needed a product foundation that could support different customers and use cases as its platform expanded. NetBramha created adaptable banking experiences that could be customised for partner brands while maintaining a consistent product foundation, alongside a scalable design system and reusable interface patterns.
This approach helped the product evolve from its early-stage foundations into a broader fintech ecosystem. Businesses building products for multiple markets can also benefit from NetBramha’s approach to design systems that balance consistency with flexibility.
BaaS products need to work not only for businesses and financial users but also for the developers integrating banking capabilities into their own products. As part of the Solid project, NetBramha designed developer-facing experiences that simplified API integration and helped accelerate product adoption and partner onboarding.
Designing these experiences requires an understanding of technical workflows alongside traditional product UX. For technology companies building API-led products, NetBramha’s enterprise UX design approach can help turn complex technical capabilities into clearer, more usable experiences.
Solid’s San Francisco roots and its Banking as a Service platform placed the project within a highly competitive international fintech environment. NetBramha worked across the product, platform, brand, mobile experience, web experience, and design system to help create a scalable financial product ecosystem.
The project demonstrates how NetBramha combines fintech domain understanding with product strategy and UX design for complex digital platforms. This approach is also relevant for businesses looking for a UI/UX design studio in London to build sophisticated financial products for global markets.
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