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INDEPENDENT DEVELOPER · SILESIA

Building tools that turn raw data into business advantage.

One developer. Obsessed with data since 2017. Company search, change monitoring, and event tracking—all through a single API.

Alex Ambros

I design systems in Laravel/PHP—from architecture to end result. Systems I enjoy building and would love to use myself.

The abstract way of thinking that has guided me throughout my life has resulted in something tangible—standardized, consistent data structures and maintainable architecture. This is interwoven with a passion for data that I've nurtured since 2017. More at Changelog →

If you have a problem to solve and don't know how to design the architecture—or simply an idea for an interesting application—contact me. I'd be happy to talk.

1.3M
entities available via API
29
event types
24h
change detection latency
REST
API-first architecture

Products

Three tools based on registry data. Search for companies with contacts, monitor changes to watchlists, and track endpoint availability. One token, one wallet, one API.

Search

Search companies with verified contact data. Filter by industry, location, registration date. Every result has a phone number, email, or fax.

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Watchlist

Monitor the companies that matter to you. Delivers daily typed events for every detected change — address, status, bankruptcy, contact.

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How I build systems

Domain-first

Every decision starts with the domain. Architecture doesn't bend to the framework — it serves business logic.

Boring extensibility

Adding a new registry, language, or data source should be routine. The system is designed so new inputs connect without touching existing logic.

Tested at scale

Not theoretical scalability — real data, real production workloads. 1.3 million entities processed daily.

Event-driven

Every detected change generates a typed event with context. The system doesn't just collect data — it explains what changed, when, and what the previous value was.

Methodical approach

I build one component at a time. Architecture isn't about writing fast — it's about putting things in the right place.

Security by design

Limited permissions, independent token revocation, no shared secrets. Every integration is isolated from day one.

Start with one token.

Register, top up your wallet, and make your first request in minutes. No subscription, no strings attached.