Hey, I'm Aaron Chacón.
Senior Frontend Engineer
I'm a Senior Frontend Engineer with 6+ years crafting scalable, accessible interfaces, focused on Angular, design systems, and real-world performance.
About
Hi! I'm Aaron, a Senior Frontend Engineer with 6+ years building scalable, accessible web applications. I specialize in Angular and design systems: modular, feature-based architectures and reusable component libraries with consistent APIs and design tokens. I care deeply about performance, accessibility, and the craft behind a clean, maintainable codebase.
I've worked across high-growth startups and enterprise products (from financial-compliance platforms to SaaS), turning complex requirements into intuitive, pixel-perfect interfaces. I love collaborating closely with design and product, and I'm always sharpening my skills with the latest in the Angular ecosystem.
Work experience
Freelance 
Ontop 
GrowthMaster 
Preventor Featured projects
A look at recent work, where clean architecture meets real-world performance.
✳ ng-agentic · open-source Angular UI library
View project ↗Angular components for AI and agent interfaces in regulated products: streaming chat, visible tool calls, approval gates and AI provenance.
✳ OurMemory · family legacy vault
View project ↗A secure family-legacy vault where parents preserve their children's memories in photo, letter and voice.
✳ Snappy · healthcare scheduling
View project ↗A scheduling platform for healthcare businesses: integrated calendar, staff tracking and a customizable booking site.
✳ Jurisly · legal tech
View project ↗A B2B platform that digitizes law firms: passwordless client portals, mobile document scanning and e-signatures.
How I can help
End-to-end frontend work: from architecture to pixel-perfect, high-performance interfaces.
Frontend Engineering
Scalable, accessible web apps with modern Angular: signals, SSR/SSG and clean, maintainable, feature-based architecture.
Design Systems
Reusable component libraries with consistent APIs and design tokens for cohesive, on-brand UIs across products.
Web Performance
Audits and optimizations for Core Web Vitals: fast, smooth experiences that score top marks on Lighthouse.
Consulting & Mentoring
Architecture reviews, best practices and mentoring to level up your team, codebase and delivery.
Testimonials
What colleagues and clients say about working with me.
“Working with Aaron has been fantastic. He has a sharp eye for detail, which directly impacts the quality of our frontend delivery. He doesn't just build components; he cares about the user experience and pixel-perfect execution. What I appreciate most is his growth mindset: he's constantly upskilling and adapting to new tech, which pushes the whole team to level up.”
“Aaron is a skilled Angular developer with a strong expertise in CSS, consistently delivering clean, responsive, and visually appealing designs. He is always ready to assist and collaborates with the team, making valuable contributions to every project.”
“Aaron is a dedicated, responsible and detail-oriented professional. He doesn't hesitate at giving feedback and proposing new ideas, improving any project he is involved in. He is also a great teammate, and the communication with him has always been a strong part of why he is great at his role. Totally recommended!”
“It's been a pleasure to collaborate with Aaron and see his professional growth. His sense of responsibility and attention to detail make him unique. Focused on delivery quality, best practices, and a true team player. He has my respect and admiration as a developer and person.”
“Aaron is an amazing developer who is known for always doing excellent work that brings value and quality to the product. He has a great sense of ownership and responsibility in what he does, and it shows in the new features that he develops.”
“I had the pleasure of working closely with Aaron during our time at Ontop. His exceptional efficiency and dedication to delivering high-quality work were truly impressive. Not only is Aaron a skilled front-end developer, but he also brings a positive and collaborative energy. I highly recommend him for any project or team looking for a talented and reliable professional.”
Get in touch
Have a project or a role in mind? Send me a message and I'll get back to you.