Valiborn Technologies

Building intelligent systems for African cities.

Platforms, tools and the infrastructure underneath them, built to hold up at city scale.

The work

Each project sits at a different stage. The badges say exactly where.

Ghanaian homes and city skylines connected by arcs of verified listing data flowing across a world map.
01Live

Valiborn Spaces

Ghana's modern property marketplace. Every listing reviewed before it goes live, every agent given real tools, and zero commission on any deal.

  • Every listing reviewed before publication
  • 0% commission, at roughly half the incumbent's price
  • Public MCP server, so AI assistants can query live listings
An isometric city corridor with connected traffic signals, a data centre and traffic hub, and streams of live data flowing between the junctions.
02Simulation-validated · Pre-pilot

ATCS-GH

AI that gives Accra's fixed-timer traffic lights a brain. A reinforcement-learning controller that cuts simulated wait times by up to ~90% on peak-hour scenarios.

  • 85–92% lower average wait time vs. fixed-time control
  • 8 demand scenarios × 5 seeds, improving on every run
  • Open source, no new hardware required
Two ordinary phones meeting tip to tip, with a contactless payment arcing between them.
03In active development · Working on hardware

Proxxly

Payment infrastructure that turns two ordinary Android phones into a card and a card reader, so a tap works even where there's no network.

  • Proven on real handsets: 8 offline taps, settled exactly once
  • Hardware-backed keys, verified at TEE level on both phones
  • 10,000 concurrent ledger operations, zero reconciliation drift

Founder

Osborn Dogbe

I'm Osborn, a builder at heart and the founder of Valiborn Technologies. I spend my time bringing together computer science, artificial intelligence, and thoughtful design to turn complex ideas into smooth, practical software.

For me, tech is only as good as the problems it solves, so I focus on building scalable tools that actually make everyday life easier.

Osborn Dogbe, founder of Valiborn Technologies.

About

A software umbrella, built one product at a time.

Valiborn Technologies builds intelligent systems for African cities. Platforms, tools and the infrastructure underneath them, built to hold up at city scale.

Valiborn started with one product and grew by taking on the next problem worth solving. So far that is a property marketplace people use today, a traffic controller released as open source, and payment rails still in the workshop. Different problems, the same bar for how they get built.

  • Based in Accra, Ghana
  • 1 live product · 2 pre-pilot
  • Building the next
A quiet desk in Accra: an open laptop, a navy notebook and pen, a mug and a small plant by the window.
Three young people talking over coffee in a modern café, shown as clean silhouettes.

Contact

Let's build something.

Investors, city and transport people, partners, or someone who just wants to ask about the work. Email lands with me directly and I answer.

valiborntech@gmail.com