What does Kiril Urbonas do?

Kiril Urbonas is a freelance full-stack and AI engineer. I design, build, deploy, and run websites, web apps, e-commerce stores, SaaS platforms, and AI automations end to end for founders and small teams. I also build and operate my own live products — from a 400+ article engineering publication (DevOpsNess) to a real-time AppSec intelligence platform (ZeroDayAttack) and a native iOS app (MyHomeStock) — so clients can see the standard before they hire.

What technologies and stack does Kiril Urbonas use?

My core stack is Next.js, React, and TypeScript on the front end; Node.js, PostgreSQL, and Prisma on the back end; and OpenAI and Claude APIs, RAG, and AI agents for automation. I deploy on Vercel and AWS with Docker and CI/CD. I build on modern frameworks rather than WordPress page builders, which is why the sites I ship typically load in under 1.5 seconds and score 90+ on Lighthouse.

Which service or package is right for my project?

A quick guide: choose a Landing Page (from €500) for one focused page to capture leads or validate an idea; a Business Website (from €1,500) for a multi-page site that builds credibility and ranks in search; an E-Commerce or Web App build (from €3,000) if you sell online or need custom functionality, dashboards, and integrations; and an AI / SaaS Platform (from €5,000) for products with accounts, billing, multi-tenant infrastructure, or AI agents. If you're unsure, send the contact form and I'll recommend the smallest scope that solves your problem.

Why hire you instead of a cheaper freelancer or an agency?

Cheaper freelancers often disappear after handoff or ship a generic template; agencies layer on account managers and developers, so costs climb, communication slows, and you rarely speak to whoever is actually building your product. I do the strategy, design, development, and deployment myself - one point of contact, full accountability, no handoff gaps. You can judge the standard from the products I build and run end to end - DevOpsNess, MyHomeStock, QRify and more, all live.

What is your process for new projects?

Step 1: You fill in the contact form or we jump on a 15-minute call. Step 2: I send a custom proposal with scope, timeline, and fixed price within 48 hours. Step 3: Before writing a line of production code, you get a full design mockup to review and approve. Step 4: I build, you get weekly progress updates, and we launch. Post-launch, I'm available for a support window to fix anything that comes up.

What is your typical pricing range?

Every quote is fixed-price with no surprises. As a guide: landing pages and lead capture sites start around €500–€1,500; e-commerce rebuilds and custom web apps range from €2,000–€8,000+; AI integrations and SaaS platforms are quoted per project scope. The contact form takes 2 minutes - I'll send a custom proposal with a precise number, no obligation.

How long does a typical project take?

Landing pages: 1–2 weeks. E-commerce stores and marketing sites: 3–6 weeks. Custom web apps and SaaS platforms: 6–12 weeks. AI integrations: 3–6 weeks depending on complexity. I'll give you a specific delivery date in the proposal - not a range. If something comes up that affects the timeline, you hear about it before it's a problem.

How quickly can you start?

Usually within 1–2 weeks of proposal sign-off. I keep my project load intentionally small so I can give each client real focus - I'm not running 10 projects at once. If you have a hard deadline, mention it in the contact form and I'll tell you upfront whether it's achievable.

What if I'm not happy with the result?

That's unlikely by design. Every project starts with a full mockup - design, layout, and copy - that you review and approve before any production code is written. You request changes, I refine it, and the build only begins once you sign off. The proposal also defines clear revision rounds, so expectations are set from day one.

Do you work with clients outside your time zone?

Yes - the majority of my clients are in Western Europe and the US. I work async by default (detailed written updates, Loom videos for walkthroughs) and schedule calls to overlap with your working hours when needed. Time zones have never been a problem.

What do you need from me to get started?

An idea of what you want to achieve, your approximate timeline, and any existing brand assets or content you have. You don't need a detailed spec - that's what the discovery process is for. Fill in the form, describe the problem in plain English, and I'll take it from there.

Do you offer support after launch?

Yes. Every project includes a post-launch support window (typically 2–4 weeks) where I fix any issues at no extra cost. For ongoing support - new features, content updates, performance monitoring - monthly retainers are available. I've had clients on retainer for 2+ years.

How much does a custom web app cost?

Custom web apps start at €2,000; larger builds with billing, multi-tenant infrastructure, or AI features typically run €3,000-€8,000+. Every quote is fixed-price, and larger projects can be split into milestone payments so you pay as each phase ships.

How long does development take?

Most custom apps ship in 4-8 weeks; full SaaS platforms take 6-12 weeks. You get a specific delivery date in the proposal and a working demo every week, so there are no surprises about progress.

Yes, completely. You get the full source code, the infrastructure under your own accounts, and documentation. Any competent developer can pick it up after me - there's no lock-in by design.

What stack do you build on?

Next.js, React, and TypeScript on the front end; Node.js, PostgreSQL, and Prisma on the back end; deployed on Vercel or AWS with CI/CD. For mobile, I ship native iOS apps - MyHomeStock, my own product, is live on the App Store. It's a boring-in-a-good-way stack that's easy to hire for later.

Can you start from an idea, without a spec?

Yes - most clients arrive with a problem, not a spec. The discovery call and free mockup phase exist to turn your idea into a concrete scope, screens, and a fixed price. You only commit once you've seen exactly what will be built.

Custom web & mobile app development for your exact workflow

I build custom web apps, mobile apps, and SaaS platforms from €2,000, fixed price. Off-the-shelf tools are designed for everyone - which means they're perfect for no one. I build around exactly how your team works, and you approve a free design mockup before a line of production code is written.

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Built for your workflow, nothing extra

The right features and none of the bloat. Teams save 60-90 minutes per person per day compared with forcing their process into off-the-shelf tools.

One engineer, end to end

Strategy, design, development, and deployment from one person - no handoff gaps, no account managers, no telephone game between designer and developer.

Production-grade from day one

Real-time features, role-based access, Stripe billing, and API integrations - the same stack behind my own live products like MyHomeStock, running on web and iOS.

Fixed price, weekly demos

You see the exact price upfront and a working demo every week. No surprises at invoice time, no six-month silence before a big reveal.

Full-stack build: Next.js / React + Node.js, PostgreSQL
User accounts, roles, and permissions
Admin dashboard and reporting
Payments and billing via Stripe (if needed)
API integrations with your existing tools
3 months post-launch support

Discovery call

A 30-minute call to map your workflow, users, and the smallest scope that solves the problem.

Proposal & free mockup

Fixed-price proposal with clickable design mockups of the key screens - approved before any production code.

Build & iterate

Weekly working demos in your hands, so feedback lands while changes are still cheap.

Launch & measure

Deploy to production, onboard your team, track usage, and iterate on what the data shows.

LiveScored - Open Live Sports Scores

A self-initiated, free and ad-light live-scores platform I built and run - live at livescored.net. Real-time scores, lineups, standings and news across 19+ sports, refreshing every 30 seconds, delivered as a fast installable PWA with a command palette - built entirely on free public data with no paywalls and no tracking.

Meter - Israeli Real-Estate Intelligence

A self-initiated real-estate intelligence platform I built and run - live at meter.my. It turns official Israeli property-transaction data into something a buyer can actually use: real sale prices (not listings) mapped across 648 neighbourhoods in 131 cities, price trends, affordability ratios, and a full suite of purchase-tax, mortgage and rent-vs-buy calculators. Free, no signup, Hebrew-first.

RedAlert - Real-Time Emergency Alerts

A self-initiated, community-built alert platform I built and run - live at redalert.live. It aggregates the official Home Front Command air-raid feed into a fast, calm dashboard: a live map and alert feed, 24-hour statistics, most-affected localities, and security news - in Hebrew, English, Arabic and Russian.

Frequently asked questions

Shopify vs Custom E-commerce: An Honest Comparison →Custom Web App vs Off-the-Shelf SaaS: When Is Custom Worth It? →

Have a product or tool in mind?

Describe what you want to build in plain English - I'll reply within 24 hours with a recommended scope, a fixed price, and the closest live product I've built to prove it.

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