Svelte & SvelteKit development for WealthTech

Less framework. More product. We build fast, maintainable digital products with Svelte and SvelteKit — combining a simpler development model with strong frontend performance and a product-focused approach.

A Svelte and SvelteKit project open in a code editor

/technology

Why Svelte & SvelteKit

A simpler approach to building modern web applications.

Technology should follow the product. We don’t choose Svelte because it is newer or because it uses fewer lines of code. We choose it when reducing frontend complexity gives the product a meaningful advantage. For the right team and product, simpler architecture means faster iteration, easier maintenance, and fewer unnecessary abstractions between the engineers and the experience they are building.

  • /01

    Less boilerplate

    Less code does not automatically mean better software, but reducing unnecessary complexity can make a codebase easier to understand and maintain.

  • /02

    Fast development

    A straightforward component model lets experienced teams move quickly from ideas to working product experiences.

  • /03

    Strong performance

    Much of Svelte’s work happens at build time, helping applications deliver lightweight and responsive experiences.

  • /04

    Full-stack with SvelteKit

    SvelteKit adds routing, server-side rendering, data loading, forms and server capabilities within one cohesive framework.

/why rooftop

Why WealthTech teams choose Rooftop?

Technology is only part of the equation. We understand the products, workflows and business behind the software.

Generic Svelte agencyRooftop
Learns your business Already understands wealth management
Talks about Svelte Talks about portfolios, advisors & custodians
Learns workflows Starts with industry context
General developers WealthTech-focused engineers
Delivers software Builds products

/why latam

Why U.S. companies build with Uruguay

Senior engineering talent with strong overlap with North American teams.

  • /01

    U.S. time zone overlap

  • /02

    Cultural alignment

  • /03

    English proficiency

  • /04

    Stability

  • /05

    Long-term thinking

  • /06

    Competitive rates

Map connecting Uruguay with San Francisco, New York, Europe, Brazil and Argentina
  • San Francisco UTC-7
  • New York UTC-5
  • Europe UTC+0
  • Brasil UTC-3
  • Argentina UTC-3
  • Uruguay UTC-3

/frequently asked questions

Questions CTOs ask before choosing a WealthTech engineering partner.

  • Absolutely. Some of our projects start by extending or improving existing products rather than building everything from scratch.

    We follow your architecture, coding standards, deployment process and development workflow, integrating as an extension of your engineering team from day one.

  • Both.

    Some clients need one senior Svelte engineer to accelerate delivery, while others rely on us for end-to-end product development, including product strategy, UX/UI, frontend, backend, QA and DevOps.

    We adapt to the stage of your company and your internal capabilities.

  • Yes.

    Our team has worked on products including:

    • Robo Advisors
    • Broker API integrations
    • Client Portals
    • Advisor Dashboards
    • Portfolio Reporting
    • Proposal Builders
    • Digital Onboarding
    • Investment Platforms
    • Employee Investment Benefits

    Because of that, we already understand many of the workflows, stakeholders and challenges unique to financial products in WealthTech.

  • Absolutely.

    We enjoy being involved early.

    We regularly help clients challenge assumptions, prioritize features, simplify workflows and make product decisions before a single line of code is written.

    Building the right product is just as important as building it right.

  • Yes.

    These are some of the products we’ve been focusing on over the last few years.

    We’ve worked on solutions involving portfolio reporting, advisor workflows, onboarding, proposal generation, internal operations and client-facing platforms for wealth management firms.

  • Financial software requires a different level of discipline.

    We design systems with privacy, least-privilege access, auditability and secure development practices in mind. We also understand that every firm and startup has its own compliance requirements and we adapt our approach accordingly.

    When using AI, we work with each client to define appropriate data handling policies and security boundaries.

  • Yes.

    Whether your application needs an upgrade to Svelte 5, a migration to SvelteKit, improved performance or a complete redesign, we can help modernize it incrementally without disrupting your business.

  • We believe maintainability is a product feature.

    Our projects emphasize clean architecture, code reviews, automated testing where appropriate, documentation and scalable engineering practices that allow teams to move faster over time.

  • We’re based in Uruguay, giving us strong timezone overlap with North America.

    Our team works daily with tools like ClickUp, Slack, GitHub, Jira, and Figma, integrating naturally into distributed engineering organizations.

    Communication is part of the job, not an afterthought.

  • Because technology is only part of the equation.

    Building products for wealth management requires understanding advisors, client relationships, reporting, onboarding, portfolio workflows, financial operations and regulatory constraints.

    We combine that industry understanding with strong engineering capabilities, allowing us to contribute from day one instead of spending months learning your business.

  • We would pick Svelte for new products where performance and the speed of the team are what matters the most. Svelte turns components into lean JavaScript at build time so apps are smaller and faster by default. Also, the code is more concise since it provides: built-in reactivity, component-scoped styling and less boilerplate which usually mean faster delivery times and easier onboarding. If you have a large React codebase or rely heavily on its ecosystem, React is often the pragmatic choice, which is why we work with both.

  • Yes. SvelteKit reached v1.0 in 2022 and Svelte 5 shipped in 2024. It has first-class TypeScript support, solid testing tools and it can be deployed to any Node server, edge network or serverless platform. The real trade-off is a smaller pool of developers than React has, which is one of the reasons teams come to us: we are Svelte-first and can provide senior Svelte engineers.

  • SvelteKit is a strong choice when you need both a fast public-facing website and a rich, authenticated product within a single codebase. It works particularly well for client portals, advisor and operations dashboards, onboarding experiences, proposal tools, calculators, and content-heavy marketing sites. Each page can be server-rendered, statically generated, or fully interactive depending on its requirements. SvelteKit is also well suited to data-intensive interfaces such as tables, charts, and real-time updates, where its small bundles and fine-grained reactivity help deliver a smooth experience across devices.

/our tech stack

Here’s the technology we use.

  • /01

    Frontend

    • Svelte
    • SvelteKit
  • /02

    Backend

    • Node.js
    • NestJS
    • Python
  • /03

    Database

    • PostgreSQL
    • MongoDB
  • /04

    Infrastructure

    • AWS
    • Cloudflare
    • CI/CD