International Software Partner — Vienna, Austria
flow it
from silicon to SaaS.
flow IT builds and ships the hard parts: embedded systems, IoT platforms, and cloud software. One senior team, accountable for outcomes from first commit to production — no hand-offs, no ramp-up tax.
Built end to end.
Four disciplines, one accountable team — wherever your product sits between hardware and cloud.
- 01Embedded SystemsFirmware, FPGA, embedded Linux
- 02IoT PlatformsEdge to cloud, end to end
- 03SaaS DevelopmentCloud platforms built for scale
- 04System ArchitectureReviews, roadmaps, due diligence
What we do
Built end to end.
Four disciplines, one accountable team — wherever your product sits between hardware and cloud.
Embedded Systems
Firmware, FPGA, and embedded Linux for systems that cannot afford to fail.
IoT Platforms
Connected products engineered end to end — from sensor to dashboard.
SaaS Development
Cloud platforms built for production from day one — and for scale from day two.
System Architecture
Independent technical judgment for decisions that are expensive to get wrong.
Process
How we deliver.
From first conversation to production — transparent, predictable, and accountable at every step.
Discover
A working session on your product, constraints, and goals — with an honest read on approach, risks, and whether we're the right fit.
Propose
A written proposal within 3-5 business days: scope, timeline, technology, and pricing you can actually decide on.
Build
Senior engineers ship in short iterations with weekly status calls. You see working software, not status theater.
Ship & support
Production launch is the start, not the end: maintenance, enhancements, and one accountable point of contact.
Tech stack
Tools we trust in production.
Proven technology over fashion — chosen for reliability, maintainability, and the lifetime of your product.
Hardware
- FPGA
- VHDL/Verilog
- PCB Design
- ASIC
Embedded
- C/C++
- Embedded Linux
- RTOS
- ARM
- STM32
Backend
- Python
- Django
- Flask
- Node.js
- Go
- PostgreSQL
- RabbitMQ
Frontend
- React
- Next.js
- TypeScript
- Tailwind CSS
Cloud
- AWS
- Docker
- Kubernetes
- Podman
IoT
- MQTT
- ESP32
- Raspberry Pi
- Grafana
- InfluxDB
- Modbus
Proof
Shipped and in the field.
From particle accelerators to award-winning retail IoT — selected work across the complete stack.
Embedded Systems
CERN / MedAustron
Particle Acceleration Control Systems
Custom embedded control systems for particle acceleration at one of the world's most advanced facilities for ion-beam cancer therapy. The requirement: precision and reliability at a level where failure is not a category. Delivered on FPGA-based real-time systems.
IoT / Embedded
umdasch Digital Retail
Smart Sustainable Refill Stations
Led the seven-person engineering team behind award-winning IoT refill stations for sustainable retail. Over 120 units shipped to the field — preventing two tonnes of plastic waste over five years while keeping the checkout experience seamless.
Full-Stack Product
Genera3D
Industrial 3D Printer — Full Product Development
Complete product development for an industrial 3D printer: electronics, firmware, backend services, and the SaaS platform on top. A focused team of four delivered a working prototype in three months — proof that small senior teams outrun large ones.
SaaS
pickme / returnme.ai
Parcel Delivery & Returns Platform
Co-founded and built the technology behind a parcel delivery and returns management SaaS. As CTO: architecture, every technical decision, and the platform itself — from first line of code to paying customers.
Clients
In their words.
What clients say about working with us — quoted verbatim, in the language they wrote it.
“Klare Kommunikation, unkompliziert & schnell umgesetzt – auf jeden Fall zu empfehlen!!”
Matea Martinović
“Ich kann Herrn Prskalo und flow it nur wärmstens weiter empfehlen. Sehr kompetent, zuverlässig und immer erreichbar wenn man Hilfe braucht.”
Dr. Elias Tenner
“Sehr professionell und zielstrebig. Empfehle gerne weiter.”
Max Ritter
“Herzlichen Dank für die wirklich gute und vorausschauende Projektabwicklung.”
Nina C.
About
One senior team. The whole stack.
flow IT is led by Marko Prskalo — fifteen-plus years of engineering across the complete stack, from custom hardware at CERN to leading product teams at umdasch Group to building SaaS companies as CTO. That range is the point: we don't hand your project between specialists, we carry it end to end.
- 15+ years across hardware, embedded, and software
- Experience at CERN, umdasch Group, and startups
- Full-stack expertise from silicon to SaaS
- Based in Vienna, Austria — serving clients globally
Let's ship your next product.
Tell us what you need built. You'll get a straight answer on scope, approach, and whether we're the right partner — usually within two business days.
Initial consultation: €120/hour — fully deducted if you proceed with the project.