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Nilushan SilvaWeb & software developer

AI Web Developer & Growth Marketer

A personal introduction for BLACKROC

I build websites.And the software behind them.

Eighteen years as a software developer, nine of them full stack. Two years using AI agents in my day job. The last three months, sites and tools for small businesses under OwnStack — Claude Code throughout. One of them is a shop that takes real money.

Explore the workGet in touch

A page instead of a cover letter. A little less telling, a little more showing.

A little of what I doLive & trading
The Carrara Collective shop homepage, with a full-width marble hero and an Explore Collections button.

Carrara Collective

Design, development & everything behind it

9 years
Full stack and cloud development
2 years
AI agents in my day job
99.999%
Uptime on the platform I look after

The question you asked

Carrara Collective

From an email thread to a working storefront.

The brief

A Sydney stone furniture maker. Tables and benches cut to order — pick the model, then the size, then the stone, and every combination is a different piece at a different price. So every enquiry turned into a long email thread about dimensions and pricing before anyone could pay. Fine at two orders a month. Not at twenty.

The build

A hosted shop platform would have fixed it for a monthly fee plus a cut of every sale, which is a lot to hand over on a business selling a handful of expensive pieces. So I built the shop instead: a configurator that prices each combination as you choose it, card payments through Stripe, automatic confirmations, and an admin panel the owner runs without me.

The result

It's live and trading — no platform fee, no commission, a few dollars a month to host. Built on my own, around a full-time job, with Claude Code.

I can't quote you a conversion lift on it, because there was no shop before this one to measure against.

The Carrara Collective product page: a marble dining table photograph beside a live price, six stone swatches, five size options and an Add to Cart button.
The configurator. Every stone and size combination is a different price, worked out as the customer chooses.

What I bring

A considered frontend.An engineer underneath.

  • More than a pretty page

    A price configurator, a stamp-duty quote estimator, a checkout — I've shipped all three. I can build the thing behind the page as well as the page.

  • Fast from the start

    GA4, GTM and conversion events before launch rather than after, and a speed budget that fails my build instead of quietly slipping. OwnStack scores 99 for mobile performance and 100 for accessibility, best practices and SEO in the report below.

    OwnStack · mobile PageSpeed

    OwnStack's mobile PageSpeed Insights results: 99 Performance, 100 Accessibility, 100 Best Practices and 100 SEO.Check the reportOpens in a new tab
    A mobile lab test, not field data. Scores can vary between runs.

  • AI, with a critical eye

    A written spec before any prompting, reusable instruction files so an agent starts out knowing my conventions, one model writing and another reviewing, and I read every change.

  • Built to hold up

    Since 2017 I've run the cloud platform behind a smart-home product — 70,000 devices, 10,000 accounts, five-nines uptime — including moving the whole live system onto Google Cloud with no downtime.

Close to home

I'm in Logan, so Brisbane is an easy run.

Full Australian working rights, and hybrid suits me well.

Happy to talk it through — or to build something small against a real brief, if you'd rather see it than read about it.

Let's have a conversation