Doreen Njiri

AI/ML Data Specialist with over five years of experience delivering high-accuracy data annotation, validation, and quality assurance for machine learning projects in remote environments. Deep expertise in image annotation and segmentation, ground truth data preparation, and QA workflows across large, complex datasets. Consistent track record of maintaining precision under strict guidelines while driving workflow improvements for distributed teams.

Data Specialist - CloudFactory Kenya

(2021-09)

• Annotate, review, and validate datasets for AI/ML training and evaluation, specializing in image annotation and segmentation.
• Conduct QA reviews to ensure annotation accuracy and consistency across deliverables, supporting model training quality.
• Detect errors and inconsistencies while maintaining compliance with project guidelines and annotation specifications.
• Maintain large structured datasets with high levels of precision and integrity for machine learning pipelines.
• Partner with distributed remote teams to resolve annotation issues and improve ground truth data outcomes.
• Contribute feedback on annotation workflows and guidelines to drive continuous process improvement.

Data Specialist - Remotasks

(2020-09 - 2022-10)

• Validated annotation quality across multiple AI/ML projects while ensuring compliance with detailed project specifications.
• Elevated data quality through detailed reviews and corrective feedback on annotated datasets.
• Adapted to shifting requirements and annotation guidelines across varied AI project types.
• Applied expertise in structured and unstructured data to support diverse machine learning data preparation initiatives.

Switchboard Operator - East African Breweries Limited (EABL)

(2022-06 - 2022-09)

• Managed incoming and outgoing communications professionally across departments.
• Maintained communication logs and ensured confidentiality of sensitive information.
• Delivered strong customer service while supporting daily administrative operations.

Data Entry Clerk - Proto Energy Limited (PRO GAS)

(2020-03 - 2020-08)

• Entered, updated, and maintained accurate business records with close attention to detail.
• Verified data accuracy and ensured information integrity across records.
• Organized large volumes of data for efficient retrieval and reporting.

Research Assistant - Ministry of Health, National TB and Lung Health Program

(2017-06 - 2018-05)

• Collected data via interviews and quantitative methods using KOBO Collect and Survey CTO.
• Reviewed interview data for completeness and accuracy while maintaining participant confidentiality.
• Conducted statistical analyses and compiled findings into weekly field progress reports.

Field Enumerator - Sema Limited

(2016-11 - 2016-11)

• Conducted household interviews and data entry using the ODK platform and Survey CTO.
• Reviewed collected data for completeness and accuracy and prepared field progress reports.

Bachelor of Science - Information Technology - Jomo Kenyatta University of Agriculture and Technology (2015)

Diploma - Information Technology - Jomo Kenyatta University of Agriculture and Technology (2010)