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Ønisa JrNJ
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Ønisa Jr

@nisajr

I build production ML systems for vision, IoT, NLP, and analytics.

Tanzania
Message

I've built production machine learning systems at ThreshPoint Analytics, Counterest, Nolla Africa, and through Upwork, spanning urban mobility, crowd analytics, wildlife monitoring, healthcare, and scientific AI.

At Counterest, I improved crowd-density counting Mean Absolute Error by 22%, increased low-light accuracy by 30%, and reduced cloud costs by 35% through edge computing. At Nolla Africa, I deployed wildlife detection systems with 92% accuracy and improved ML pipeline efficiency by 40%.

I work across the full ML lifecycle, from data collection and preprocessing to deployment and monitoring. My work includes computer vision, transformer models, unsupervised clustering, IoT analytics, and scalable data pipelines.

Experience

Work history, roles, and key accomplishments

TA
Current

Machine Learning Engineer

ThreshPoint Analytics

Jul 2025 - Present (1 year 2 months)

Developed a system to analyze GPS trajectory data for estimating foot traffic patterns and impression exposure, visualizing routes with Dash and Plotly. Engineered machine learning pipelines for large-scale spatial-temporal datasets to support predictive analytics for urban mobility and marketing attribution.

Education

Degrees, certifications, and relevant coursework

MT

Mbeya University of Science and Technology

Pre-Bachelor, Mechatronics and Robotics Automation

2020 - 2023

Pre-Bachelor in Mechatronics and Robotics Automation with coursework in machine learning, computer vision, embedded systems, robotics control, and sensor networks. Capstone project on automated precision agriculture using computer vision and IoT.

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