About
Alpisto d.o.o.
Alpisto d.o.o. is a Slovenian engineering company founded in Tolmin. We operate as a boutique consulting practice focused on R&D engineering problems — specifically the kind that sit at the boundary between scientific computing and production software.
Our business model is simple: project-based engagements billed in EUR, plus our own hardware product line, FlyBeeper (BLE variometers and flight computers for paragliding pilots). Building FlyBeeper end-to-end — from nRF52 firmware to FastAPI backends to the web shop — keeps our production skills sharp.
We are EU VAT registered (SI91102227) and invoice in EUR. We work with teams across Europe and beyond on remote engagements.
Evgeny Istomin — the engineer
20+ years in electrical power systems engineering, followed by a deliberate move into software. I've worked on state estimation, OPF, and protection relay logic in legacy MATLAB and C++ codebases — and I've been on the other side, migrating those systems to Python.
Since 2020, my stack has expanded to embedded firmware (ESP32, nRF52, Zephyr RTOS), event-driven backends (FastAPI, NATS, MQTT), scientific Python (NumPy, SciPy, pandapower), and BLE sensor fusion. All of this runs in FlyBeeper, which ships to real customers.
I'm based in Slovenia. I work in English and Slovenian. I take on a small number of consulting clients at a time to keep quality high.
How we work
- — We work hands-on. No PowerPoint consulting, no offshore handoffs.
- — We ship working code — tests, CI, documentation if the scope calls for it.
- — We prefer short paid engagements that prove fit before scaling up.
- — We respect NDAs, IP boundaries, and your existing team dynamics.
- — If we can't help, we'll tell you so instead of taking the money.
Get in touch
The best way to start is a short email describing the problem. No RFPs, no NDAs before hello.