Los Angeles, CA

You've been lookingfor someone who takesan idea all the wayto production.

You've been lookingfor someone whotakes an ideaall the wayto production.

I'm Aga.
Full-stackNext.jsAI integrationsArchitecture
Selected work

What I've Built

01
Featured

E-Commerce Platform

Revenue-critical checkout system for one of Europe’s largest e-commerce platforms — handling thousands of daily transactions.

1.5 years in a Scrum team where every change touched real money. Learned how milliseconds and microcopy directly move conversion rates.

ReactReduxStripeREST APIsTypeScript
02
Completed

Claro

Multi-tenant marketplace where every vendor gets their own subdomain, isolated data layer, and Stripe Connect payouts.

Next.js 15 + Payload CMS 3 + tRPC v11. AI description generator streams product copy directly into the Payload admin UI.

Next.js 15Payload CMS 3tRPC v11Stripe ConnectClaude API
View code →
03
In Progress

Spoke

AI Video Calls Platform. Details coming soon.

Next.jsAIReal-time
About

The most expensive mistakes don't throw errors. They accumulate quietly until someone notices the revenue is wrong.

I learned that building checkout systems for over a million users. 1.5 years in production where downtime wasn't an option. You develop a certain instinct — for what looks fine but isn't, for the decision that feels small now and costs real money in three months.

I bring that instinct to everything I build. Not just the feature in front of me — but what it touches, what it assumes, what happens when it meets real users doing unexpected things.

I'm in Los Angeles, building my own products and taking on a project or two a year — for people who want the thinking done, not just the code written.

Aga Kadela
Process

How I Work

Scope

I question the brief

The most expensive bugs aren't in the code — they're in the requirements. Before writing anything, I push back on assumptions and make sure we're solving the right problem.

Communication

You know where things stand

Progress, blockers, decisions that need you — I surface them before you ask. No status meetings. No chasing.

Judgment

I know when not to build

The fastest way to waste a budget is building the wrong thing. I'll tell you when a simpler solution exists, when something isn't worth the complexity, and when to wait.

Handover

You leave with something you can own

Documentation, decisions, and context — not just a codebase. If you need to hand this to someone else in six months, you can.

Contact

Get in touch

The right project shows up maybe twice a year. It's usually someone who has a real problem, knows what they want to build, and needs someone to own the technical side — not manage it.

If that's you — tell me what you're building.