Senior Frontend Engineer | AI Frontend Engineer

Rebuilt wumonica.com with Next.js 16, React 19, TypeScript, and Tailwind CSS. Delivered a production-ready customer experience with typed Metadata API routes, self-hosted fonts, and strict Content Security Policy validation.

Launched a customer-facing Digital Twin using agentic AI, streaming chat, ChromaDB retrieval, structured tool-calling APIs, intent routing, and guardrails. Built an LLM-as-judge evaluation harness with golden question sets and tool-call traces, and created a human-in-the-loop reconciliation workbench with approvals, overrides, audit trails, and jurisdiction-specific configuration-driven connectors.

Led end-to-end delivery of accessible, regulated clinical-research features across nine health-system sites. Translated ambiguous customer needs into Figma UX/UI designs, TypeScript implementations, testing, releases, and rapid issue resolution in distributed teams.

Built and deployed a shared TypeScript UI component library with more than 10 reusable components, reducing duplicate work by approximately 25% across three product teams. Evaluated Ollama and Llama 3.1 for local AI delivery and introduced Cursor with mandatory review and testing of generated changes.

Led architecture and delivery of an accessible Angular design system and enterprise NPM component library. Applied reusable APIs, SASS/SCSS, HTML patterns, and system design practices to reduce UI development time by approximately 30%.

Defined component specifications and frontend standards for consuming teams, aligning designers and engineers through reusable interaction patterns, accessibility guidance, code reviews, and best practices. Planned versioned releases across Angular versions 8 through 14, achieving zero downstream regressions and reducing upgrade effort by approximately 40%.

Delivered revenue-critical browser workflows for an enterprise payments platform processing more than $200 million per month. Built with JavaScript, TypeScript, ES6, React, Redux, Angular, RxJS, HTML, CSS, and REST APIs.

Diagnosed production performance and correctness regressions through profiling, monitoring, and root-cause analysis, restoring payment workflows within SLA. Mentored two engineers in RxJS, state management, lazy loading, and code review, and optimized Webpack builds to improve deployment speed.

Led 0-to-1 frontend and customer-facing web development at a four-person startup using React, Redux, Node.js, Express, and REST APIs. Owned architecture, user flows, prototyping, proofs of concept, and mentorship for two junior engineers.

Built and remediated WCAG 2.1 AA components across approximately 50,000 Microsoft partner websites, reducing accessibility support tickets by approximately 30%. Developed an Angular and TypeScript schema-publishing tool and device-focused test coverage for smart TVs, kiosks, and mobile devices.

Owned end-to-end architecture and delivery of a human-in-the-loop reconciliation workbench for multi-jurisdiction tax compliance. Combined accessible UI, interaction design, deterministic guardrails, AI-assisted workflows, and human control.

Designed exception identification, root-cause explanation, resolution recommendation, and approval or override flows. Built reusable workflow components, REST API state handling, exportable audit trails, an evaluations panel benchmarked against seeded ground truth, and Jest and Cypress coverage for critical review workflows.

Built a production-grade digital-twin RAG agent using Python, OpenAI, ChromaDB vector databases, and Gradio APIs. Grounded responses in retrieved source documents and supported forward deployment for practical web projects.

Launched continuous production operations with Gradio interfaces and per-stage observability for reliability, availability, and latency across three pipeline stages. Engineered agentic tool calling, real-time intent routing, guardrails, and production-focused evaluations.

Machine Learning Engineering certification.

AI Engineering certification.

Full-Stack JavaScript certification.