2025 • Financial Technology

Dwolla Dashboard Modernization

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0 % → 0 %

Modernization Progress

Dashboard modernization contribution

0 +

Active Users

Dashboard users served

Billions

API Requests

Backend systems processing annually

Daily

Deployments

CI/CD pipeline production releases

Project Overview

During my Software Engineering Internship at Dwolla (May 2025 to August 2025) in Des Moines, IA, I contributed to increasing the modernization of Dwolla's Dashboard from 33% to 57%, working within a cross-functional product engineering team in an agile/scrum environment serving 1,200+ users.

I developed and implemented features using the Next.js framework and Material UI for frontend development, while interacting with Scala for backend API integrations and webhook functionality. Code was deployed to production using CI/CD pipelines daily to support backend systems processing billions of API requests annually.

A key contribution was creating and documenting React components for the design system using Storybook, ensuring responsive design and accessibility standards compliance. I actively participated in code reviews, sprint planning, and demos to deliver high-quality code meeting industry standards.

My Role

Frontend Development

Developed and implemented features using Next.js framework and Material UI, building responsive and accessible interfaces.

Design System

Created and documented React components using Storybook, ensuring design consistency and accessibility standards compliance.

Backend Integration

Interacted with Scala backend for API integrations and webhook functionality, supporting systems processing billions of requests.

Agile Collaboration

Participated in code reviews, sprint planning, and demos within a cross-functional product engineering team.

Technical Stack

Frontend

Next.js React framework

React Component library

Material UI UI components

Storybook Design system docs

Backend

Scala Backend services

REST APIs Data integration

Webhooks Event handling

API Gateway Request routing

DevOps & Process

CI/CD Pipelines Daily deployments

Agile/Scrum Sprint planning

Code Reviews Quality assurance

Accessibility WCAG compliance

Challenges & Solutions

Legacy Code Migration

Challenge: The existing codebase had inconsistent patterns, outdated dependencies, and tightly coupled components that made modifications risky.

Solution: Implemented a strangler fig pattern, gradually replacing legacy components with new ones while maintaining functionality. Created a comprehensive component library with Storybook for documentation.

Performance Bottlenecks

Challenge: Initial page loads took 8+ seconds due to large bundle sizes and unoptimized data fetching strategies.

Solution: Implemented code splitting by route, lazy loading for heavy components, and optimistic UI updates. Introduced React Query for intelligent caching and background refetching.

Security Compliance

Challenge: Financial platform requiring PCI DSS compliance with strict security requirements for handling sensitive payment data.

Solution: Implemented secure token handling, XSS prevention, CSP headers, and secure session management. All sensitive operations used encrypted channels with proper audit logging.

Key Learnings

"Working on a production financial platform taught me the critical importance of security-first development and thorough testing practices."

Enterprise-scale React architecture and state management patterns

Working within PCI DSS compliance requirements for financial applications

Effective cross-functional collaboration in agile environments

Performance optimization techniques for data-heavy dashboards

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