Build
- Architecture design & deployment strategy
- Front-end development
- Back-end development
- Static site specialist
- JavaScript, Node, Ruby, Elixir, HTML, CSS, SQL
Services
Failing your Core Web Vitals? Losing conversions due to poor user experience from slow loading, delayed interactions, or shifting content? I’m here to help.
Why me?
I have over 20 years of experience in tech and over 7 years focused on web performance. I’ve helped companies large and small, most recently at Shopify where I helped merchants make their sites faster and implemented improvements to the Shopify platform. I’m also a Google Developer Expert in Web Technologies, in the web performance team. About me →
Summary of Services
My primary work is helping clients optimize Thinker web performance - from audits and debugging through implementation. For select clients, I'm also available for traditional full-stack web development.
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
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
Web Development Build Services
For select clients, I provide bespoke full-stack web development services. From architecture to deployment, I build performant, scalable websites that are performant and made to last.
I specialize in full-stack development, with deep experience in JavaScript, Node, Ruby, Elixir, HTML, CSS, and SQL. Whether you need a static site that flies or a custom web app with serious power under the hood, I'll develop a solution that's clean, fast, and future-proof.
Request web development services →
Web Performance Optimization Services
Struggling with web performance? I'm available for custom projects based on your unique needs. Here are some example services:
Core Web Vitals audits
Core Web Vitals Audits
Find your top web performance bottlenecks and recommended fixes with a Web Performance audit. Best for companies with a dedicated developer or development team.
- Baseline performance data analysis of real user page experiences
- Identification of worst performing pages and metrics for real users
- Deep-dive root cause analysis of the top issues on up to 3 different pages or page types with an option to add more
- Recommended strategies for implementing fixes
- Delivered via remote presentation and Q&A with your team with the option to record for your future reference
- Includes digital copies of all presentation and report materials
Jump-start quick implementation
Jump-start quick implementation
Don’t have a developer to implement fixes? Don’t really care to know why you're failing, and just want it fixed?
- Includes the same level of analysis as the Core Web Vitals audit without preparation of any presentation or report
- Instead, fixes are implemented directly by me into your code base using your code review process (preferably using a tool like Github which I can also set up)
Jump-start pairing
Jump-start pairing
Are you a web developer stuck on a performance problem and only need some guidance and pair programming in a single session?
- 90-minute pair programming session
- Any web performance topic including general questions as well as live testing and debugging
- Includes a follow-up email with any resources or answers that could not quickly be found during the call (up to 30 minutes of active research)
Active Monitoring Subscription
Active Monitoring Subscription
Get fast and stay fast. Want a full-service web performance engineer without having to commit to a full-time employee?
- Begins with an initial deeper-dive Core Web Vitals audit with implementation support to get you back on track
- Support for setting up Real User Monitoring (RUM) and notifications with your preferred RUM vendor
- On-call investigation and implementation support for real-time performance digressions (up to 10 hours per month)
- Ongoing monthly health checks with a deeper dive each quarter
- Billed monthly with a 6-month minimum commitment
Health Checks Subscription
Monthly or Quarterly Health Checks
Want a web performance engineer partner with regularly scheduled checkups? Use your own team for real-time digressions and implementation.
- Begins with an initial deeper-dive Core Web Vitals audit with implementation support to get you back on track
- Ongoing monthly or quarterly health checks to investigate digressions and provide recommended fixes
- Both options billed quarterly with a 6-month minimum commitment
Virtual or In-Person Workshops
Virtual or In-Person Workshops
Level up your development team for both measuring and optimizing the performance of your site
- 3-part workshop focusing on real-user experience and the Core Web Vitals
- Not just lecture but hands-on exercises to build confidence in the tools and problem solving skills
- Can be delivered in one full-day session or three 3-hour sessions with homework (best for learning)
- Includes a virtual office-hours session 2-4 weeks after the initial workshop to support any new questions
- Best paired with an audit to customize the content and exercises for your specific site (not included in base price)
- Price does not include travel expenses which must be paid by the client
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
Speaking, Teaching, and Mentoring services
I bring bold ideas, clear communication, and real-world technical insight to the stage. I break down complex systems into engaging, actionable takeaways with no fluff and no jargon overload. Whether I'm talking about web performance, web development, or systems thinking, audiences leave with practical tools, fresh perspective, and the energy to build better.
68
events
92
talks
23
workshops
5,900
attendees
Learn more about my speaking, or request learning services →
Sia has definitely mastered the art of keeping a listener engaged. Her humor and ability to communicate technical concepts at the same time is an amazing talent. All information was presented well and provided a long list of notes to take back to my company and coworkers.
-Anonymous attendee feedback from The Progressive Web Experience
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.