SMALL STUDIO / BIG SYSTEMS
We build useful systems.
TreeTank is a small, independent studio working where software engineering, practical AI and marketing meet. We design and build integrations, internal tools, automated workflows and digital products that turn complicated work into something clearer, faster and genuinely useful.

TEAM / 01
The team
AI SOLUTIONS ENGINEER
Jacek Mariański
I currently run TreeTank as its body and soul. I move between product thinking, software architecture and hands-on implementation—building AI integrations, marketing infrastructure, internal tools and the interfaces that make those systems approachable. My portfolio tells the longer story of the projects and experience behind that work.
WORK WITH US
Not hiring. Still listening.
TreeTank does not have an open role at the moment, but that does not mean the door is closed. If our mix of engineering, AI, automation and product work feels close to yours, introduce yourself. Tell us what you care about, what you have been making and what you would like to build next—we'd be happy to hear from you.
