SaaS and web apps
Your product in users’ hands in weeks, built to grow.
SaaS MVP from $8,000, in 3–4 weeks.
The same standard behind SelfManager.ai, our own AI SaaS.
See web appsabZ Global · Senior software studio
Web apps, AI, Shopify and fractional CTO leadership.
Software your business can run on, led personally by Marian Sorca. Senior engineering at AI speed, with one person accountable from the first call to long after launch.
Projects from $2,000 Reply within 24 hours
CTO
Fractional, for a private aviation company (2022–2026) and a US marketplace (since 2026)
$10M+
In sales at a Shopify Plus brand we’ve been technical partner to for years
200M+
US shoppers reached by the network of an e-commerce marketing tech client we kept on retainer for years
250+
Clients, rated 4.93 from 191 written reviews
400+ 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.
(01) What we do
Five ways we work with you.
Every lane starts from a business result. Pick one, or combine them.
01 / Web apps and SaaS
Web apps and SaaS
Products and internal tools your business runs on.
- SaaS development
- Custom web apps
- Marketplace development
- Rescue and modernization
- Development sprint
From $2,000
Web apps and SaaS02 / AI for business
AI for business
AI that takes hours of manual work off your team every week.
- AI agents and automations
- AI assistant
- Document AI
- Voice AI
- AI features in your product
- MCP servers
From $5,000
AI for business03 / Shopify
Shopify
More revenue per order, fewer operations headaches.
- Custom development
- Custom apps
- Integrations
- Checkout and funnels
- AI for your store
- Premium store
From $2,000
Shopify04 / Premium websites
Premium websites
A website that wins deals and gets found, in Google and in AI search.
- Business website
- SaaS and tech website
- Move to a custom site
From $5,000
Premium websites05 / Fractional CTO and audits
Fractional CTO and audits
Fewer expensive mistakes.
From $3,500
- Fractional CTO
- Code and security audit
- Technical due diligence
- Agency partner
Not sure where to start? Describe your goal and we’ll recommend the right first step.
See all 24 services →(02) Where to start
Where most clients start.
Three first steps with a fixed price and a delivery time. The rest follows from what we learn.
AI agents and automations
One repeated task handed to AI, connected to your tools, with a person approving the risky steps.
From $5,000, in about 2 weeks.
See AI for businessCode and security audit
Know what you have before you spend more. A ranked fix plan in plain language.
From $3,500, in 2–3 weeks.
See audits(03) Selected work
Selected work, built end to end.
A few of the 400+ sites and apps we’ve shipped, and what we were responsible for in each.
SelfManager.ai, a date-based AI task & project manager.
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.
400,000+
Lines of code in production
5,000+
Git commits
14
AI features live
Spare Space
Fractional CTO & lead software engineer · Web app
A two-sided marketplace for renting storage, parking and workspace in the US: listings and approvals, Stripe payments, email automation and security. Full-stack, built from scratch.
BLAK
Fractional CTO & lead software engineer
Fractional CTO for a private jet charter company from 2022 to 2026, including a hand-coded website with flight requests from every page.
Royal Labs
Shopify
A custom Shopify theme built from scratch for a US cosmetics contract manufacturer: 25+ editable sections and a multi-step inquiry form that feeds HubSpot.
Katherine Hooker
Shopify
A custom-coded Shopify theme, built pixel-perfect to the approved designs for every desktop and mobile page, for a London luxury fashion brand.
Shot of Joy
Ongoing development partner · Shopify
A Shopify store for a botanical shot brand, with ongoing development since 2023.
More work: AddShoppers & SafeOpt Ecommerce portfolio Web app portfolio
(04) Why one studio
Why one studio can cover all of it.
Web apps, AI, Shopify and websites look like different trades. Underneath, they run on the same fundamentals: browsers, APIs, data, logins, payments and security. Master those, and every lane is the same discipline applied to a different problem.
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01
Same fundamentals, every lane.
The skills that secure a web app also secure a store’s checkout and an AI agent’s access to your data.
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02
Senior review on every change.
Nothing ships until a senior engineer has reviewed it.
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03
Speed you can plan around.
Every package has a delivery time, and most first versions land in weeks, not months.
(05) How we work
Five standards you can hold us to.
They’re the reason clients stay for years.
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01
Software Excellence
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.”
Shannon, repeat client -
02
Engineering
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.
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03
Experience
Building software since 2010 means risks get spotted early and decisions stay practical.
Since 2010 · 400+ sites and apps shipped
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04
Dedication
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.”
Michael, ONE65 San Francisco -
05
Professionalism
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.”
Jacob, Spare Space
(06) Client feedback
A 4.93 out of 5 rating, from 191 written reviews.
"Marian was incredible to work with. Highly skilled and able to dig into a poor web implementation, debug and correct everything we needed in a very efficient manner. He was great to communicate with and can work autonomously with both high level or specific direction. Worth every penny."
6 of 191 reviews
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(07) The person behind it
“If I contribute to the success of my clients, I feel successful.”
Every project has the founder on it: not as a sales overlay, but doing the engineering.
Marian Sorca, founder.
Senior software engineer · building software since 2010
“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. abZ Global is the studio built around that standard.
You work with me directly. When the work needs more hands, I bring in engineers and lead them, reviewing every change before it ships. One person stays responsible: me.
- Building software since 2010
- Working with US businesses since 2014
- Fractional CTO and lead software engineer for BLAK International, private aviation, 2022 to April 2026
- Fractional CTO and lead software engineer for Spare Space, a US marketplace, since 2026
- Founder of SelfManager.ai: 400k+ lines of code, 14 AI features, MCP server, API and webhooks
- Works in English, German, Romanian and Croatian
(08) Enterprise
Bigger project? Bigger team, same accountability.
Start with Marian. When the work needs it, he brings in a team and leads it: architecture, priorities, code review and releases, with one person accountable for the result.
- A dedicated team, sized to your roadmap
- Weekly updates and a roadmap you can act on
- NDA, with the code and accounts in your name
- Contracts, statements of work and monthly invoicing
Start a project
Have a project in mind?
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.
- 01Tell us about it.A few lines on the goal, the deadline and what exists today.
- 02A reply within 24 hours.Useful questions and a proposed next step, in writing.
- 03Scope and price agreed before work starts.Projects from $2,000. Ongoing fractional CTO work is billed monthly.
Email
[email protected] ↗
Response time
Within 24 hours, 7 days a week