# Malachy Ugwu

Malachy Ugwu is a remote worker on Himalayas, Graduate Intern at Nigerian Electricity Regulatory Commission (NERC), based in Nigeria.

Source: https://himalayas.app/@malachyugwu

```text
AI Engineer at NSK.ai who built a document-questioning RAG chatbot with Groq, FAISS, and hybrid retrieval.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Nigeria |
| Authorized to work in | Nigeria |
| Salary expectations | 30k+ USD |
| Job categories | AI Engineer, Data Analyst, Machine Learning Engineer |
| Skills | AI, Machine Learning, Data Analysis, RAG, Hybrid Retrieval, Dense Retrieval, BM25, Cross Encoder Re Ranking, Faiss, regression, Classification, Multi class Classification, K Means, Feature Engineering, Cross Validation |
| GitHub | https://github.com/Shikamaru-n |

## About

```text
At NSK.ai, I built a Retrieval-Augmented Generation chatbot that lets users upload PDFs and query their contents using a Groq LLM and FAISS. I combined dense search with BM25 retrieval and Cross-Encoder reranking, then deployed the interface with Streamlit.

As a contract Data Analyst, I built Excel dashboards and data workflows, including an application that estimates Lagos rent and an employee-retention prediction workflow. I also reviewed metering submissions as a Graduate Intern at the Nigerian Electricity Regulatory Commission (NERC), escalating non-compliances to supervising engineers.
```

## Experience

### Graduate Intern (current)

Nigerian Electricity Regulatory Commission (NERC). Nov 2025 - Present

```text
Reviewed Meter Service Provider (MSP) files and technical submissions against NERC's metering regulations, identifying non-compliances and escalating findings. Supported the engineering team with data analysis tasks using Excel.
```

Skills: Excel, Data-Analysis, Regulatory-Compliance, Technical-Review

### Chess Expert (current)

Kabusa Garden Estate. Jul 2025 - Present

```text
Taught a class of 30 beginner children, covering notation, tactics, and endgame fundamentals. Explained positions in plain spoken language and translated between verbal description and board position.
```

Skills: Teaching, Chess, Communication-Skills

### Creative Director & Content Quality Lead (current)

UFan Studio. Jul 2022 - Present

```text
Led quality control for text-heavy and visual content deliverables, reviewing outputs for accuracy and clarity. Conceived, developed, and supervised multiple writing projects across fiction, comics, and narrative media.
```

Skills: Quality-Control, Content-Development, Project-Management, Google-Drive, Editing

### AI Engineer

NSK.ai. Jul 2025 - Sep 2025

```text
Built a Retrieval-Augmented Generation chatbot allowing users to upload PDF documents and query content using a Groq LLM and FAISS vector store. Designed a hybrid retrieval pipeline combining dense search, sparse BM25 retrieval, and Cross-Encoder reranking.
```

Skills: RAG, Faiss, BM25, CrossEncoder, GROQ-LLM, Streamlit, Git, Python

### Data Analyst

Remote. Jan 2025 - Sep 2025

```text
Built an interactive bike sales dashboard in Excel from a dataset of 1000+ customers, using pivot tables, charts, and slicers. Cleaned and prepared raw customer data, removing duplicates and grouping customers into age brackets.
```

Skills: Excel, Pivot-Tables, Data-Cleaning, Data-Analysis, Logistic-Regression, Feature-Engineering, Python, SQL

### SIWES Industrial Trainee

Transmission Company of Nigeria. Jan 2024 - Apr 2024

```text
Assisted control room engineers in monitoring power system parameters using SCADA/EMS interfaces and manual logging. Participated in daily inspections of 150MVA transformers and circuit breakers, recording temperatures and readings.
```

Skills: SCADA, EMS, Power-Systems, Excel, Data-Logging

## Education

### University of Nigeria, Nsukka

Bachelor of Engineering, Electrical Engineering. 2019 - 2024. Grade: Second Class Upper Division

```text
Bachelor of Engineering in Electrical Engineering with Second Class Upper Division. Coursework includes control systems, communication principles, and power systems.
```

## Tech stack

- Jupyter
- NumPy
- Pandas
- Google Drive
- Python
- scikit-learn
- Streamlit
- Flask
- Git
- SQL
- Faiss
- Seaborn
- Matplotlib
- Retrieval-Augmented Generation (RAG)
- Power BI

To contact Malachy, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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