Harare, Zimbabwe · Available for hire

I ship AI systems that hold under real load.

Senior AI Engineer with 8 years building production-grade AI infrastructure, scaling platforms to 20,000+ users, and leading engineering teams across global markets. This page is proof, not a pitch.

Cyprian Aarons
20k+ · Users on platforms shipped75% · Avg. performance lift20 · Engineers led
PROOF_LEDGER.log
20,000+
Users on platforms shipped
35–75%
API latency reduction
6yrs
Shipping production systems
20
Engineers led at peak

02 — Track Record

Experience

Six years across CTO roles, senior engineering contracts, and independent consulting — building, scaling, and leading.

Independent AI Consultant
Senior AI Engineer · Remote

Zimnat Insurance: Cut customer-service response latency to <3s and lifted automated engagement 25% with a LangGraph multi-agent RAG system. Defence & Security AI (Classified): Delivered applied AI for national-security drone detection and procurement. Baines Avenue Clinic & PSC: Shipped multimodal debt-recovery and psychometric profiling products on AWS.

Agentic AIFastAPILangGraph
Feb 2025 — Present
Africai
Chief Technology Officer · Harare, Zimbabwe

Scaled a 3-developer AI platform team to support 20,000+ active users at 99.9% uptime, owning architecture and all MLOps/CI/CD. Cut API response times 35–75% via Redis caching, query optimisation, and async Python; led OpenAI/Stability.ai integration.

LeadershipMLOpsPlatform Scaling
Jan 2023 — Feb 2025
Coindraw, CST Ltd, Vanti
Senior Engineer — Independent Contractor · Remote

Scaled FinTech backend (Coindraw) to 10,000+ concurrent users at sub-200ms latency; cut logistics workflow processing time 80% (CST Ltd) via async refactoring. Built real-time Vue.js IoT dashboards (Vanti) syncing live telemetry.

BackendFinTechVue.jsIoT
Jun 2022 — Dec 2024
Topiax.xyz
Founder & CTO · Remote

Founded and scaled a 20+ engineer studio delivering AI, backend, and data products. Architected high-concurrency microservices to 10,000+ users at 99.9% uptime; cut production incidents 40% via standardised CI/CD and testing.

LeadershipMicroservicesCI/CD
Oct 2018 — Dec 2023
Full experience & education

04 — Instrumentation

Stack & credentials

The tools, frameworks, and certifications behind the work.

AI & Machine Learning
OpenAIAnthropicLangChainLangGraphRAGPyTorchTensorFlow
Backend & Cloud
PythonFastAPIDjangoNode.jsGoPostgreSQLAWSDockerCI/CD
Frontend
ReactNext.jsTypeScriptVue.jsTailwind CSS
Blockchain & Web3
SoliditySmart ContractsEthers.jsWeb3.jsDeFi
Certifications
AWS Certified Developer — Associate
AWS
AWS Certified ML Engineer — Associate
AWS
Deep Learning Specialization (PyTorch)
Meta / DeepLearning.AI
LangChain & LangGraph for AI Agents
LangChain
TensorFlow Developer Professional
DeepLearning.AI

05 — Live activity

GitHub commit graph

A live view of my public GitHub contribution activity over the last year.

GitHub commit graph.

A live view of my public GitHub contribution activity over the last year.

View GitHub
6,808 contributions
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06 — Social proof

What clients say.

From CTOs to repeat collaborators — the work speaks through the people it served.

Cyprian developed a middleware API platform that seamlessly integrated our business services. His technical expertise and deep understanding of our needs helped automate key processes and deliver a robust, user-friendly solution that significantly enhanced productivity.
Aryton
CTO · CST Ltd
Very easy to work with and understood the assignment. He is very knowledgeable in his field and I would be more than happy to work with him again.
Wanda
Client · Product engagement
A talented developer, always willing to put forth 100% effort on every project. I am honoured to have worked with him on many projects and looking forward to working with him on many more.
@bitgallery1
Repeat collaborator · Multiple builds

07 — Status: open to opportunities

Building AI systems that need to hold under real load?

I'm available for senior engineering and architect roles, contract engagements, and technical consulting. If something above is relevant to what you're building, let's talk.

Looking for fixed-scope delivery sprints instead? Explore my service offers