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AI infrastructure for
modern creators.

Ujima One is a Paris-based AI-as-a-Service company building the integrated platform that founders, developers, and teams need to ship products faster.

We believe the best products are built when AI, automation, and development tools work together — not as fragmented point solutions, but as one unified ecosystem.

Too many builders waste time switching between five different tools. We built Tielk and Niafirst so they don’t have to.

Three products. Unified by design.

Tielk Builder
Tielk Builder

Visual web editor with AI code generation. Users describe changes in plain language and the AI writes, edits, and deploys code in real time.

Tielk Chat
Tielk Chat

Multi-model AI chat with 300+ language models. Features conversation memory, document-based RAG retrieval, team workspaces, and Bring-Your-Own-Key.

Tielk Agent
Tielk Agent

Visual drag-and-drop builder for AI-powered automation workflows. Three complexity tiers from simple workflows to fully autonomous multi-agent systems.

Niafirst
Niafirst

Full-stack Web3 education platform with interactive code playgrounds, AI tutoring, certifications, and a global developer community.

How we think about building.

01
Integration over fragmentation

One platform that does Builder + Chat + Agent beats three separate tools. Shared auth, shared billing, shared context.

02
Simple by default, powerful when needed

Most users want things to just work. Power users want BYOK and full control. We build for both.

03
Global from day one

We have entities in Paris, Kigali, and Kampala. We build for Europe, Africa, and beyond — not just Silicon Valley.

04
Ship, then iterate

530K+ lines of production code. 100+ API endpoints. 25 database models. The product exists — we ship first and improve constantly.

Constantin Promesse Juste, CEO and Founder of Ujima One
Constantin Promesse Juste
CEO & Founder

Entrepreneur with operations across Europe and Africa. Founded entities in France, Rwanda, and Uganda. Led infrastructure negotiations for blockchain node deployments in East Africa. Built a pan-European developer network across protocol teams and communities. Trilingual — French, English, Dutch.

Paris, France Founded 2024 Ujima One (SASU) RCS Paris 102 137 528