Aaron Chacón

Aaron Chacón is a Senior Frontend Engineer with over six years of experience specializing in Angular, design systems, and scalable web applications. He provides end-to-end frontend engineering services including architecture, component libraries, and performance optimization for B2B projects. His work spans startups and enterprise products such as financial-compliance platforms and SaaS applications.

Clients can engage Aaron for freelance B2B projects ranging from building scalable web apps to creating reusable component libraries with consistent APIs and design tokens. He focuses on delivering pixel-perfect interfaces while maintaining clean, maintainable codebases through modular, feature-based architectures. Services include frontend engineering, design systems, web performance audits, and consulting or mentoring for teams.

Aaron has worked on projects for healthcare scheduling, legal tech, and family legacy vault applications, demonstrating versatility across different industries. His portfolio includes work with Ontop, GrowthMaster, and Preventor, alongside independent projects for startups and enterprise products. He currently operates as a freelancer and independent contractor based in the United States.

Aaron specializes in modern Angular development, utilizing signals, server-side rendering (SSR/SSG), and clean, maintainable feature-based architecture. He also builds reusable component libraries with consistent APIs and design tokens to ensure cohesive on-brand UIs across multiple products. His technical approach prioritizes accessibility and real-world performance metrics like Core Web Vitals.

Aaron's design system work involves creating modular, feature-based architectures and reusable component libraries that maintain consistent APIs and design tokens. This approach ensures that interfaces remain cohesive and on-brand while allowing for scalable growth as products evolve. He emphasizes the craft behind a clean, maintainable codebase throughout the development process.

Aaron performs web performance audits and optimizations specifically targeting Core Web Vitals to ensure fast, smooth experiences that score top marks on Lighthouse. He integrates these performance improvements directly into the frontend engineering process to deliver high-performance interfaces. His focus on performance is a core part of his end-to-end service offering.

Aaron provides consulting and mentoring services focused on architecture reviews, best practices, and team mentoring. These services are designed to level up a client's codebase and delivery capabilities. He works closely with design and product teams to translate complex requirements into intuitive interfaces.

Aaron's portfolio includes a secure family legacy vault where parents can preserve their children's memories in photos, letters, and voice recordings. He also developed a healthcare scheduling platform with integrated calendars and staff tracking for healthcare businesses. Another notable project is a B2B legal tech platform that digitizes law firms with passwordless client portals.

Aaron's recent work includes ng-agentic, an open-source Angular UI library for AI and agent interfaces in regulated products. This library supports features like streaming chat, visible tool calls, approval gates, and AI provenance. He continues to sharpen his skills with the latest developments in the Angular ecosystem.

Aaron's work experience includes roles as a Frontend Developer at GrowthMaster from 2019 to 2020 and a UI Developer at Preventor from 2019 to 2020. He has been working on freelance and independent projects since 2021. His career spans high-growth startups and enterprise products, showing a history of adapting to diverse technical environments.

Aaron's approach to frontend engineering emphasizes creating scalable, accessible web applications with modern Angular. He ensures that interfaces are not only functional but also intuitive and pixel-perfect through close collaboration with design and product teams. His growth mindset involves constantly upskilling and adapting to new technologies to push teams forward.

Aaron's design system work ensures that APIs and design tokens remain consistent across all products, preventing fragmentation. He builds reusable component libraries that allow for rapid development while maintaining high quality and brand consistency. This methodology is central to his ability to handle complex requirements efficiently.

Aaron's consulting and mentoring services help teams improve their architecture reviews and adopt best practices. He provides direct mentoring to level up individual developers and the overall codebase. These services are tailored to the specific needs of the client's delivery pipeline and technical challenges.

Aaron's portfolio demonstrates his ability to work across various domains, from healthcare scheduling to legal tech digitization. His projects show a commitment to solving real-world problems with clean architecture and real-world performance. He continues to expand his portfolio with new projects in regulated AI interfaces and family legacy applications.

The official website of Aaron Chacón is aaronch.dev.