Tiana
Kayemba

I build AI systems for regulated industries
Also: 4th year CS @ UofT

Founder & AI Systems Engineer · Refraxis

AI Systems Engineer and Founder of Refraxis. I build production document processing and workflow automation for Canadian regulated industries.

Document ProcessingWorkflow AutomationCanadian Data ResidencyAWS Canada Central
See my workGet in touch
5
Systems deployed
4
Industry specialties
Python·LangGraph·RAG Systems·Prompt Engineering·Machine Learning·REST APIs·PostgreSQL·AWS·Next.js·OpenAI API·Anthropic API·Refraxis · refraxis.ca·Python·LangGraph·RAG Systems·Prompt Engineering·Machine Learning·REST APIs·PostgreSQL·AWS·Next.js·OpenAI API·Anthropic API·Refraxis · refraxis.ca·

Selected work

Projects

These projects form the technical foundation of Refraxis

01

AI · Health Tech

Cadence

An AI-powered circadian rhythm predictor that maps your body clock using Apple Health data or a short quiz.

View project →02

AI · RAG

Ask Anything

Drop in any document, PDF, or URL. Ask it anything. A live context-grounded Q&A pipeline powered by Claude.

View project →03

AI · Enterprise Tools · Refraxis

Arkive

Upload any documents, ask it anything. An enterprise RAG knowledge base with source citations, document preview, and highlighted passages — powered by Claude.

View project →04

AI · SaaS · Refraxis

NexaDesk

A white-label AI customer support widget that answers from a custom knowledge base, escalates to humans when needed, and logs every conversation — deployable on any website with one script tag.

View project →05

AI · Document Intelligence · Refraxis

DocAgent

An AI document processing agent that extracts structured data from any PDF, flags risks and discrepancies, and delivers plain-English summaries — invoices, contracts, legal filings, and scanned documents via OCR.

View project →

About

The person behind the work

"I'm an AI Systems Engineer and Founder of Refraxis - we build document processing and workflow automation systems for Canadian regulated industries"

I founded Refraxis to build AI document processing systems for Canadian regulated industries — accounting firms, municipalities, legal practices, and crown corporations that need their data kept in Canada and their workflows actually automated. The projects I work on are the technical foundation of what we do at Refraxis.

I'm also a fourth-year Computer Science student at University of Toronto with minors in Mathematics and History of Religions. My foundation in CS - data structures, algorithms, databases, systems - informs how I build.

Tiana Kayemba

Things I work with

PythonJavaScriptHTMLLangGraphPostgreSQLSQLSQLAlchemyREST APIsChart.jsTailwind CSSReactNext.jsOpenAI APIAnthropic APIRAGPrompt EngineeringMachine LearningAWSOOPAWS Bedrock

Contact

Let's build something.

Open to AI implementation contracts and consulting engagements. For professional enquires, please visit refraxis.ca

✉ tiana@refraxis.ca↗ Refraxis↗ LinkedIn↗ GitHub✉ tskayemba@gmail.com