Tammy Hart

Launched the Humanitas Institute platform, cataloging valuable content and insight to raise awareness for Classical Education and providing a map of Classical schools

Established a bespoke design system that enabled wireframe-to-UI direct translation, accelerating delivery cycles and bypassing traditional high-fidelity mockup bottlenecks

Achieved perfect 100 Lighthouse scores across Performance, Accessibility, SEO, and Best Practices by leveraging Astro's islands architecture and zero-JS-by-default approach

Engineered a robust testing suite using Vitest and Cypress, ensuring 99.9% reliability for mission-critical data visualizations and search functionality

Engineered a new inventory display system using Next.js to improve frontend performance, significantly reducing page load times and increasing user engagement

Spearheaded the frontend of a greenfield feature , allowing buyers to retain search filters and receive email notifications of new search results, resulting in an increase in return buyers

Engineered a comprehensive refactor of a data-dependent system, standardizing its architecture to accept multiple data shapes, which removed brittle code and improved system resilience

Extended a distributed service architecture , including multiple Next.js applications, NestJS/Node services, and a shared TypeScript UI library

Led the end-to-end design and implementation of new features for core products, resulting in a more intuitive user experience for over 70,000 organizations

Modernized a calendar and facility management product using Figma and TypeScript, including converting views from Ruby to React, improving usability and scalability

Enhanced the component system , ensuring UI consistency across core products by opting for decisions over options

Drove mobile responsiveness and accessibility enhancements across core user interfaces

Engineered an internal dashboard for managing stats for customer service representatives

Engineered a precise lease/loan payment solution , increasing user trust and driving an increase in website conversions

Leveraged LaunchDarkly for feature flags and A/B testing to implement and iterate on new feature designs, resulting in a major increase in user engagement and conversion rates

Optimized a large-scale React monorepo that serves millions of monthly visitors

Elevated and enforced a company-wide design system , ensuring design consistency and quality

Designed and implemented UI/UX for new features that increased user engagement and streamlined the learning experience for thousands of MBA students

Led the team in the development of a greenfield feature from concept to launch which allowed hiring managers to post job openings and directly connect with students on our platform

Mastered Angular from zero knowledge , contributing independently to key features within three weeks

Architected a governance-first design token engine enforcing strict CSS variable distribution and architectural consistency across large-scale web applications

Engineered a sophisticated recursive TypeScript type-safety layer that validates semantic tokens against raw primitives at compile-time, eliminating configuration typos and design-to-code drift

Developed a zero-latency configuration loader using Jiti to provide a seamless developer experience, enabling instant IDE intellisense and real-time validation for design system architects

Spearheaded the Open Source distribution , managing the end-to-end release lifecycle on NPM and establishing a "Grammar Proposal" framework for community-driven architectural standards

Integrated the engine into production environments to replace legacy styling methods, resulting in a 100% reduction in "ghost tokens" and undocumented CSS overrides

Architected a performance-optimized financial platform focused on a "free-to-spend" methodology, leveraging Next.js and Linaria to deliver a zero-latency, refined user experience

Engineered a relational schema in Supabase , leveraging Postgres Triggers to automate the real-time shifting of financial obligations across dynamic, user-defined planning horizons

Formulated the technical specification for a resilient Plaid integration , designing a "Decimal Integrity" model to enable predictive cash-flow modeling

Prototyped a rigorous Design System , bridging the gap between complex financial engineering and high-fidelity UX through a dark-mode first, performance-optimized dashboard architecture

Partnered with a film production lead , to architect a zero-to-one promotional platform including full-stack development using Strapi for the CMS/API, and Next.js for the frontend

Created high-fidelity designs in Figma with components, variables, and prototypes, ensuring a consistent visual and functional experience

Engineered a scalable and accessible front-end architecture , implementing custom interactions and transitions while ensuring mobile responsiveness, touch-friendliness, and keyboard navigability

Developed common community features from scratch , such as authentication, forum topics/replies, member profiles, bookmarking, and other content submissions that require a user profile