Chukwuma Clifford Nwanna — AI/ML Engineer

I design and deploy AI systems that solve real operational problems. From banking intelligence platforms and AI agents to embedded IoT products and production SaaS systems.

→ View UpJobs ↗ GitHub ↗ LinkedIn ↓ Download CV

₦295B

Corporate accounts recovered CRIS pipeline, Wema Bank · live in production

2k+

Jobs matched daily UpJobs.co · pgvector + GPT-4o-mini · live product

39/39

Agent tests passing Data Knight · Azure Synapse · natural language → SQL

Key Projects

🔴 Live Product · 2025–Present

https://upjobs.co — AI Job Matching Platform

Solo-built job platform serving African talent. Ingests 9,000+ remote jobs daily from 9 sources, matches candidates via hybrid vector + rule scoring, and delivers results to WhatsApp. Paystack-monetised.

Live · paying users 9k+ jobs indexed HNSW cosine search

upjobs.co →

Next.js 15 TypeScript Supabase + pgvector OpenAI GPT-4o-mini LangChain Python JobSpy Paystack WasenderAPI PM2 · Hetzner VPS

ARCHITECTURE NOTE

Hybrid vector + rule matching with IVFFlat + HNSW indexes. LLM match reasons via GPT-4o-mini after() — non-blocking. 6-source ingest pipeline with dedup via MD5 hash.

🏦 Production · Wema Bank

Data Knight V2 — NL→SQL Enterprise Analytics

Governed natural language to SQL platform on Azure Synapse. Intent classification routes queries to pre-approved templates — the Semantic Firewall Architecture. 39/39 agent tests passing.

Confidential Azure Synapse

FastAPI Azure OpenAI Azure Synapse SQLite Chart.js

📊 Live · 320k+ accounts

CRIS — Corporate Retention Intelligence System

1,069-line Python/SQL churn pipeline scanning every corporate account monthly. March 2026: 5,838 actionable accounts identified, ₦191.5B turnover reactivated.

₦295B at-risk identified

Python T-SQL Azure ML Scikit-learn

🤖 Production · LangChain Agent

Streak AI — Banking Relationship Manager Agent

LangChain AgentExecutor with Azure OpenAI and Row-Level Security. Four AI endpoints, markdown rendering, 50-customer production dataset across 6 Wema segments.

RLS enforced Phase 2 stable

LangChain Azure OpenAI React FastAPI

🟢 Live · Hugging Face Spaces

Finance Intelligence — Personal Finance AI

GPT-4o-mini personal finance pipeline on HF Spaces. 100 pytest tests, GitHub Actions CI/CD. Open source.

100 tests passing

Python Streamlit OpenAI GitHub Actions

📡 Hardware + Cloud · IoT SaaS

Gateman — BLE Attendance SaaS

ESP32 + BLE badge hardware attendance system. M5Stack hardware, Google Drive integration. First paid deployment targeting Lagos offices. V2 in progress.

Hardware + Cloud

ESP32 BLE Arduino Google Drive API

Experience

Mar 2025 — Present

Data Scientist / AI Engineer

Wema Bank Plc · Lagos, Nigeria

Built CRIS churn pipeline — 320k+ accounts, ₦295B identified, ₦191.5B reactivated in first quarter
Designed Semantic Firewall Architecture for Data Knight — governed NL→SQL on Azure Synapse
Built Streak AI — LangChain + Azure OpenAI agent for relationship managers with RLS enforcement
Authored Microsoft Copilot productivity article for internal Data Digest publication

Jan 2025 — Mar 2025

AI/ML Engineer (Contract)

JéGO Technologies · Remote

ML models for EV route optimisation and energy consumption prediction
Distributed Agile delivery across time zones

2022 — 2024

Service Engineer

Coscharis Medical · Lagos, Nigeria

Installation and maintenance of medical equipment across 25 Nigerian states
X-ray, ventilators, patient monitors, ultrasound systems — safety-critical environments

2021 — Present

Founder & Solutions Engineer

Ecotronics Enterprise · Anambra, Nigeria

UpJobs.co — live AI job platform, solo-built, paying users
Gateman — BLE attendance SaaS (registered business, first client)
INKLIENT — CNC pen plotter signing machine (Flask + G-code, near-production)

Technical Stack

AI / LLM

LangChain
Azure OpenAI
GPT-4o / mini
RAG Pipelines
pgvector
Embeddings
Prompt Engineering
AI Agents

Backend

Python
FastAPI
Flask
Node.js
SQL / T-SQL
PostgreSQL
Supabase
REST APIs

Frontend

Next.js 15
TypeScript
React
Tailwind CSS
Streamlit
Chart.js
HTML/CSS/JS

Cloud / MLOps

Azure ML
Azure Synapse
Azure AI Studio
Docker
GitHub Actions
PM2
Hetzner VPS
CI/CD

Data Science

Scikit-learn
Pandas
Scipy
TensorFlow
Plotly
Power BI
Tableau
Feature Eng.

Hardware / IoT

ESP32
Arduino
BLE
RFID
Raspberry Pi
Embedded C
IoT SaaS
Hardware-Cloud

Payments / SaaS

Paystack
Resend
WasenderAPI
Supabase Auth
Row-Level Security
Webhooks
Subscriptions

Education

BEng Electronics
& Computer Eng.
Nnamdi Azikiwe
University · 2021

Data Science
GOMYCODE · 2023