Projects Showcase Experience Debug Tech Contact

Hello,

My name is
Lemuel Ossai.
ML engineer &
AI researcher.

MSc Automation Control & Robotics at Sheffield Hallam University. I build deep learning systems for underwater navigation, sleep analysis, and real-world AI products. Founder of Debug Tech — the UK’s grassroots Physical AI builder community.

Sheffield, UK — available from October 2026
Lemuel Ossai Ifuwe
Sheffield Hallam University — MSc Robotics
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Open source

Projects.

Production ML systems, applied research tools, and community infrastructure. Pull requests welcome.

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WhatsApp maternal health triage for Warri, Nigeria. Whisper + Wav2Vec2 ASR for Nigerian Pidgin, XGBoost risk classifier with SHAP explainability, LLM NLU via Claude/GPT-4o, RAG grounded in WHO antenatal protocols.

PythonWhisperWav2Vec2XGBoostSHAPFastAPIAWS LambdaRAG
PythonActive build

Collaborative filtering recommender via matrix factorisation in TensorFlow serving 1,000+ users. BERT NLP tagging pipeline, 40% model compression via quantisation. Dockerised FastAPI on AWS ECS Fargate with CI/CD.

TensorFlowBERTFastAPIDockerAWS ECSRedisGitHub ActionsMLflow
PythonShipped

Predictive churn model on billing and network usage data, 80%+ accuracy. RFM feature engineering alongside network telemetry. Live Looker Studio dashboard for real-time account flagging. 20% estimated attrition reduction.

PythonScikit-learnSQLPandasRFMNumPyLooker Studio
PythonShipped

Debug Tech flagship: fine-tuning OpenVLA on custom SO-ARM101 Pro demonstration data. Community-driven Vision-Language-Action model for physical AI tasks targeting defence, construction, and industrial verticals.

PyTorchOpenVLAHugging FaceROS2CUDAJetson OrinLeRobot
PythonActive build

Python automation pipeline for large-scale network decommission analysis. Statistical anomaly detection reducing false positive rates by 30%, boosting delivery efficiency by 45%. Continuous data drift monitoring.

PythonPandasNumPySQLAnomaly DetectionETLFeature Engineering
PythonShipped
AI-Ready Drone Build

Autonomous drone with onboard computer vision and AI inference. ROS2, OpenCV, CUDA on Jetson Orin Nano. Planned late 2026.

ROS2OpenCVCUDAJetson OrinPython
PythonComing 2026

Research

Showcase.

ACTIGRAPHY · MESA · 2,057 PARTICIPANTSWAKESLEEPCNN · LSTM · FiLM · DAFT

Deep learning · Sleep science

AI Sleep-Wake Classification from Wrist Actigraphy

In preparation — preview only

CNN, LSTM, Transformers, FiLM & DAFT fusion on MESA dataset (2,000+ participants). +30 percentage points specificity over Actiwatch clinical baseline.

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GPS-DENIED · ROS2 HUMBLE · ANSFL DATASETAUVTCN/LSTMEKFPixhawk 2.4.8 · Jetson Orin Nano · MAVROS · ArduSub

Robotics · Underwater navigation

Deep Learning Dead Reckoning for Low-Cost AUV

In preparation — preview only

TCN/LSTM state estimator + EKF on Pixhawk 2.4.8 and Jetson Orin Nano. Benchmarked on ANSFL dataset against PiDR and Topini et al. baselines.

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EMERGENCY TRIAGE · CONTEXT-AWARE AIVoice inputContextTransformerGENUINEFALSE / AMBIGUOUSAttention · Fine-tuning · Small-data medical regime · SHU

AI · MedTech

AI Emergency Triage Classification

Research ongoing

Transformer + attention-based deep learning for genuine distress detection. Context-aware, beyond keyword detection. Optimised for small-data medical fine-tuning regime.

View project
PUBLISHED 2023 · COVENANT UNIVERSITY · PEER-REVIEWEDPOSTERMINALNFCDEVICEDEFERREDRECONCILENFC · Offline-first · Banking resilience · COVID-19 context

Embedded systems · Fintech

Hybrid Offline NFC Payment System

Published 2023

Deferred-reconciliation NFC payment architecture for banking infrastructure resilience during connectivity outages. Peer-reviewed journal publication, Covenant University.

View project

Career

Experience.

2025 — present

AI Research Assistant

Sheffield Hallam University

PyTorchTransformersROS2MESA datasetCUDA
Jan — Aug 2025

Data Scientist

Royal Iwere Foundation (RIF)

LLM fine-tuningPower BIETLSQLSentiment Analysis
Nov 2023 — Oct 2024

System Integration Consultant

Huawei Technologies Nigeria

PythonAnomaly DetectionStatistical ModellingETL
May 2023 — Jan 2024

ML Engineer & Co-Founder

Electronit AI

TensorFlowBERTAWSDockerFastAPICI/CD

Community

Founder

Building the UK’s grassroots Physical AI community.

Debug Tech is rooted in Sheffield and expanding to Manchester and England-wide. Flagship project: SO-ARM101 Pro robotic arm with OpenVLA fine-tuning as the community’s Vision-Language-Action model contribution. Open-source Physical AI targeting defence, construction, and industrial verticals. Four planned hackathons, university and secondary school outreach.

debugtech.io
4Hackathons planned
2Cities — Sheffield & Manchester
3Industry verticals
1Flagship robot arm project

Toolkit

Tech Stack.

A snapshot of what I work with day to day.

ML & Deep LearningPyTorch, TensorFlow, Scikit-learn, CNNs, TCNs, LSTM, Transformers, XGBoost, Hugging Face, BERT, OpenCV
NLP & Speech AIWhisper, Wav2Vec2, BERT fine-tuning, RAG pipelines, LLM APIs (Claude, GPT-4o), Semantic Embeddings
MLOps & DeploymentDocker, FastAPI, MLflow, DVC, GitHub Actions, AWS (ECS Fargate, Lambda, SageMaker), Redis
Robotics & EmbeddedROS2 Humble, Gazebo, MAVROS, ArduSub, Pixhawk, NVIDIA Jetson Orin Nano, CUDA, JetPack 6
Data EngineeringSQL, Pandas, NumPy, Power BI, Looker Studio, ETL pipelines, SHAP, Apache Airflow
LanguagesPython, C/C++, MATLAB, Bash, RAPID (ABB RobotStudio)
FoundationsControl systems theory, signal processing, embedded systems design, linear algebra, calculus

Get in touch

Open to senior ML engineering roles and research collaborations.

Available from October 2026. Currently completing MSc at Sheffield Hallam and building Debug Tech. If you’re working on something interesting in AI, robotics, or Physical AI — let’s talk.

lemuelossaiifuwe@gmail.com