Fractional CTO leadership, custom web apps and websites, Shopify ecommerce and AI integrations. Led personally by Marian Sorca, building software since 2010 and committed to getting the details right.
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250+ clients since 20144.93/5 from 191 written reviews400+ sites and apps shippedBuilding software since 2010
Trusted by US businesses since 2014.From private aviation and luxury ecommerce to manufacturing, marketing platforms and SaaS.
Every engagement is led by Marian personally, with clear scope and responsibility throughout the work.
Senior technical judgment, without a full-time hire.
Fractional CTO and lead software engineer for BLAK International, a private aviation company, from 2022 to April 2026, and since 2026 for Spare Space, a US marketplace.
Fractional CTO →SaaS products, marketplaces and internal tools, built end to end.
We built and run SelfManager.ai, our own AI SaaS: 400,000+ lines of code and paying users.
Web apps →Shopify and Shopify Plus stores, and the custom work behind them.
Technical partner to a Shopify Plus brand past $10M in sales, on retainer for years.
Ecommerce →AI features that do real work, and the integrations that connect your tools.
14 AI features in production in SelfManager.ai, plus an MCP server, an API and webhooks.
AI & integrations →Designed for your brand and coded by hand, not built from a template.
This site is one: 570+ pages, rebuilt in hand-written code in October 2026.
Custom websites →Not sure what you have? Start with a code or security audit. Connecting ChatGPT or Claude to your product? See MCP servers.
Discuss your project →Web apps, AI, Shopify and security look like four trades. Underneath, they’re one: the web. Browsers, JavaScript and TypeScript, APIs, databases, logins and permissions.
is an API call, with your data and permissions around it.
is a web app with a checkout.
isn’t an add-on. It’s how all of it gets built.
Know those fundamentals deeply, as we have since 2010, and each platform is a variation, not a new start. That’s why one engineer can review your architecture, build the integration, add the AI and check it for holes, with nothing lost between specialists.
A few of the 400+ sites and apps we’ve shipped, and what we were responsible for in each.
A product with paying users, designed, built and run by Marian on Angular and Firebase, with 14 AI features in production. The AI patterns we use for client work run in our own product first.
More work: AddShoppers & SafeOpt Ecommerce portfolio Web app portfolio
They’re the reason clients stay for years.
Clean, tested, maintainable code. We get the details right, and we leave a codebase the next engineer can work in.
“His code is clean and concise.”
We think in systems: the interface, the data, the integrations, and how it all runs after launch. Not just how it looks.
SelfManager.ai: designed, built and operated in production by Marian.
Building software since 2010 means risks get spotted early and decisions stay practical.
Since 2010 · 400+ sites and apps shipped
We stay responsible through delivery and after it. Many clients keep working with us for years.
“I had the pleasure of working with Marian again after six years, and I couldn’t be more pleased with the experience.”
Clear scope, honest advice, reliable communication and a documented handover. If something is a bad idea, we say so before you pay for it.
“I got constant updates, smart suggestions, and honest professional feedback.”
"I can't recommend Marian enough. He stepped in to handle a complex, custom Squarespace project that two other coders couldn't complete—and he handled it with ease."
Every project has the founder on it: not as a sales overlay, but doing the engineering.
“Since 2010 I’ve had one goal: to become exceptional at software engineering and technology. My client reviews are what that looks like from the client’s side.”
And I stay accountable after launch, which is why many clients have worked with me for years. I run my own SaaS, so I decide like an owner, not a contractor. I’ve built with AI coding agents every day since 2024, and I understand every line I ship. abZ Global is the studio built around that standard.
You work with me directly. When a project needs more hands, I lead a team of 10 to 20 and still do the hands-on engineering, with one person responsible: me.
Where others see impossible, we see solutions.
When a project gets called too hard, our answer is simple: bring it.
We don’t fear complexity. It’s where we do our best work.
Tell us what you’re building and where it’s stuck. Within 24 hours you get useful questions and a proposed next step, or an honest answer if we’re not the right fit.