Build
- Architecture design & deployment strategy
- Front-end development
- Back-end development
- Static site specialist
- JavaScript, Node, Ruby, Elixir, HTML, CSS, SQL
Hi, I’m Sia
I design, build, and optimize websites, tools, and communities. Whether you're looking to level up your digital presence, untangle performance bottlenecks, or collaborate on something totally new, I bring technical depth, creative energy, and a get-it-done mindset.
We have been working with Sia since 2017. A majority of our sales come directly from our website, so the performance and maintenance is critical. Sia is one of the smartest software engineers I know, and I trust her to always make the right call.
-Andrew Preble, Owner of Escape My Room
Services
Optimize
- Design for web performance
- Core Web Vitals audits
- Web performance implementation
- Health check subscriptions
- Active monitoring subscriptions
Learn
- Conference and corporate speaking
- Virtual and in-person workshops
- Developer mentorship
- Developer relations consulting
Public speaking
I make complex tech topics clear, bold, and actionable. As a performance engineer and creative technologist, I deliver no-fluff talks that leave audiences smarter, inspired, and ready to build better.
Learn more about my speaking.
Sia's web performance workshop was a game-changer. Thanks to the guidance and the insights gained during the workshop, we've witnessed remarkable improvements, with some clients experiencing up to a 70% boost in their performance metrics.
-Adan Archila, Founder of Studio 31
Resources for developers
Helping people achieve their goals fulfills me. Most of my unpaid time is dedicated to generating knowledge content, creating tools, and developing community.
Blog
Recent posts
See all posts →
NEW! SpeedCurve RUM for your Shopify store
Announcing a new Shopify app to install SpeedCurve on your storefront, no developer required!
How to enable SpeedCurve in your Shopify store
Here's how to install the SpeedCurve RUM app in your Shopify store, along with troubleshooting and next steps.
14 web performance tips for 2025
Strategic web performance tips that you should be focusing on in 2025 to improve Core Web Vitals
Newsletter
Videos and Podcasts
Recent Recordings
See all content →
Leveraging CrUX and HTTP Archive for Theme Vitals | PerformanceObserver
Performance with Sia Karamalegos | Pixels With Purpose podcast
Growing Your Brand Beyond Technical Fixes with Sia Karamalegos | Honest Ecommerce podcast
Using 11ty to build a data and chart analytics website | THE Eleventy Meetup
You're probably doing web performance wrong | PodRocket by LogRocket podcast
Tools
Tools and Resources
I love building new tools and resources, whether they help fill an important gap in developer tooling or just add a bit of joy. Here are a few:
- Shopify Theme Vitals: How fast is your theme? Your resource for exploring Core Web Vitals performance for popular Shopify themes.
- Priorities Scanner: Bookmarklet to quickly see a list of all the fetchpriorities, preloads, prefetches, and preconnects on a webpage.
- NC Art Meets: Your source for live figure drawing, urban sketching, plein air, and other drawing or painting from life events in the North Carolina Triangle area.
- Coder Ipsum: Thought-leadership synergistic programming filler text for your next killer app.
Community
Community Meetups
I organize the following meetups and community groups. Check them out if they fit your interests!
- PerformanceObserver: A virtual meetup for the web performance community
- THE Eleventy Meetup: A virtual meetup for all things 11ty, indie web, and static-site generation
- Durham Social Hack Night: A social meetup for the tech community
- Durham Plein Air/USK and NC Art Meets: An outdoor painting/sketching group and newsletter for similar events
Join my developer community
I share new projects and content as well as behind-the-scenes reflections, upcoming events, and favorite tools in this less-than-monthly newsletter.
View previous issues in the archive or subscribe to the RSS feed.
A strategic partner you can depend on
I make websites faster, smarter, and easier to grow.
If you want someone who’s creative and precise, deeply reliable, and not afraid to tell you what’s what to get you to the next level—I’m your partner.