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I am a dynamic, resourceful, and analytical researcher and scientist with deep interests in data science, analytics, and applied mathematics. With a strong foundation in mathematics and physics, I specialize in uncovering patterns, solving complex problems, and transforming raw data into actionable insights. My experience spans machine learning annotation, statistical analysis, system research leadership — all driven by precision, curiosity, and a commitment to impact. Whether leading data collection teams, optimizing workflows, or annotating datasets for AI models, I bring a unique blend of scientific rigor and practical execution. I thrive in fast-paced environments where logic meets creativity, and I am passionate about contributing to projects that demand deep research, strategic thinking, and human-centered solutions.…I am a dynamic, resourceful, and analytical researcher and scientist with deep interests in data science, analytics, and applied mathematics. With a strong foundation in mathematics and physics, I specialize in uncovering patterns, solving complex problems, and transforming raw data into actionable insights. My experience spans machine learning annotation, statistical analysis, system research leadership — all driven by precision, curiosity, and a commitment to impact. Whether leading data collection teams, optimizing workflows, or annotating datasets for AI models, I bring a unique blend of scientific rigor and practical execution. I thrive in fast-paced environments where logic meets creativity, and I am passionate about contributing to projects that demand deep research, strategic thinking, and human-centered solutions.

Jeff Juma

Data Analyst, Data Annotator, Data Scientist, +4

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I am a dynamic, resourceful, and analytical researcher and scientist with deep interests in data science, analytics, and applied mathematics. With a strong foundation in mathematics and physics, I specialize in uncovering patterns, solving complex problems, and transforming raw data into actionable insights. My experience spans machine learning annotation, statistical analysis, system research leadership — all driven by precision, curiosity, and a commitment to impact. Whether leading data collection teams, optimizing workflows, or annotating datasets for AI models, I bring a unique blend of scientific rigor and practical execution. I thrive in fast-paced environments where logic meets creativity, and I am passionate about contributing to projects that demand deep research, strategic thinking, and human-centered solutions.…I am a dynamic, resourceful, and analytical researcher and scientist with deep interests in data science, analytics, and applied mathematics. With a strong foundation in mathematics and physics, I specialize in uncovering patterns, solving complex problems, and transforming raw data into actionable insights. My experience spans machine learning annotation, statistical analysis, system research leadership — all driven by precision, curiosity, and a commitment to impact. Whether leading data collection teams, optimizing workflows, or annotating datasets for AI models, I bring a unique blend of scientific rigor and practical execution. I thrive in fast-paced environments where logic meets creativity, and I am passionate about contributing to projects that demand deep research, strategic thinking, and human-centered solutions.

Available to hire

I am a dynamic, resourceful, and analytical researcher and scientist with deep interests in data science, analytics, and applied mathematics. With a strong foundation in mathematics and physics, I specialize in uncovering patterns, solving complex problems, and transforming raw data into actionable insights.

My experience spans machine learning annotation, statistical analysis, system research leadership — all driven by precision, curiosity, and a commitment to impact. Whether leading data collection teams, optimizing workflows, or annotating datasets for AI models, I bring a unique blend of scientific rigor and practical execution. I thrive in fast-paced environments where logic meets creativity, and I am passionate about contributing to projects that demand deep research, strategic thinking, and human-centered solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

DaVinci Resolve Studio

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Swahili

Advanced

Work Experience

Data Analyst & Data Annotator at Mindrift

April 1, 2023 - September 1, 2024

Data Analyst & Data Annotator responsible for detailed data annotation for machine learning models, ensuring accuracy and consistency across large datasets. Analyzed structured and unstructured data to extract insights and support model training. Collaborated with cross-functional teams to refine annotation guidelines and improve data quality. Applied mathematical logic and statistical techniques to validate data patterns and trends. Contributed to system integration tasks, aligning annotated data with backend systems for seamless deployment.

Driver/ Transport & Logistics Associate at Cheza Gymnastics Nairobi

April 1, 2023 - March 1, 2025

Provided safe and punctual transport for coaches, gym mats, and training equipment; coordinated daily drop-offs and ensured timely return of equipment; maintained vehicle safety and route planning across Nairobi; supported event logistics and demonstrated professionalism and reliability.

Data Analyst & Data Annotator at MindRift (Remote)

April 1, 2023 - September 1, 2024

Conducted detailed data annotation for machine learning models, analyzed structured and unstructured data to extract insights, collaborated with cross-functional teams to refine guidelines, applied mathematical logic and statistical techniques to validate data patterns, and contributed to system integration by aligning annotated data with backend systems for deployment.

Senior Supervisor – Research & Data Collection at Esaka Institute and Computer College

January 1, 2022 - March 1, 2023

Led a team of research assistants in designing and executing data collection strategies, developed structured data collection tools, ensured data integrity, analyzed survey and observational data for curriculum development and institutional planning, trained junior staff on data handling and ethics, and coordinated fieldwork logistics with quality control.

Field Maintenance and Workflow Coordinator at BABULCO Construction Company Ltd

January 1, 2020 - December 1, 2022

Performed repair, maintenance, and installation tasks to keep construction sites safe and operational, resolved on-site technical issues to minimize downtime, maintained safety standards and quality craftsmanship, and supported project delivery through proactive coordination with site supervisors.

Data Annotator & Task Contributor at Remotasks

June 1, 2019 - December 1, 2021

Performed high-volume data annotation tasks across image, text, and audio datasets for AI training; labeled, classified, and created bounding boxes for CV and NLP tasks; participated in QA reviews to maintain accuracy and consistency; identified edge cases and contributed to task guidelines and data validation workflows.