John NjongoroJN
Open to opportunities

John Njongoro

@johnnjongoro

Detail-focused professional seeking a Data Annotation Specialist role.

Kenya

What I'm looking for

I am looking for a role that values precision and offers opportunities for growth in AI and data annotation.

I am an ambitious and technologically savvy professional with a strong focus on data annotation and quality assurance. My experience includes annotating diverse data types such as text, images, audio, and video, ensuring precision and consistency in every project. I have a proven track record of utilizing various annotation tools, including Labelbox, Prodigy, and Amazon SageMaker Ground Truth, to deliver high-quality datasets that enhance AI model performance.

In my current role as a Data Labeling Associate, I have successfully labeled over 2,000 text entries for sentiment analysis and entity recognition, significantly contributing to NLP model training for e-commerce applications. My commitment to quality is evident in my development of annotation guidelines, which increased inter-annotator agreement by 25% within my team. I am dedicated to upholding data privacy standards and have ensured compliance with GDPR protocols in all my projects.

Experience

Work history, roles, and key accomplishments

RE
Current

Data Labeling Associate

Remote

Sep 2023 - Present (1 year 9 months)

Labeled over 2,000 text entries for sentiment analysis and entity recognition, enabling NLP model training for e-commerce applications. Conducted audio annotations for speech-to-text models with a 97% transcription accuracy. Developed guidelines that improved inter-annotator agreement by 25% and ensured compliance with GDPR.

AU
Current

Freelance Data Annotator

Appen & Upwork

Sep 2023 - Present (1 year 9 months)

Provided annotation services for image and text datasets, including bounding box creation and keyword tagging for retail and healthcare clients. Maintained a 95% client satisfaction rating while delivering over 1,500 annotations weekly under tight deadlines.

Education

Degrees, certifications, and relevant coursework

Chuka University logoCU

Chuka University

Bachelor of Science, Actuarial Science

2018 - 2022

Studied Actuarial Science with a focus on enhancing data accuracy, analytical and problem-solving skills, data structures, and database systems.

Tech stack

Software and tools used professionally

Availability

Open to opportunities

Location

Kenya

Authorized to work in

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John Njongoro - Data Labeling Associate - Remote | Himalayas