Eshmael Chava
@workai0104user
I’m a Senior QA Manager scaling AI data quality for ML, computer vision, NLP, and speech.
What I'm looking for
I’m a Senior QA Manager and AI data quality leader with 6+ years of progressive experience delivering production-grade training datasets for Machine Learning, Computer Vision, NLP, and Speech systems. I focus on scaling QA operations for fully remote teams and translating data quality into measurable downstream model performance.
In my current role, I lead QA operations for 60–120 globally distributed annotators and reviewers. I reduced annotation error rates by 32% and increased first-pass acceptance to 98%+. I also built audit frameworks covering 2M+ assets per quarter across CV, NLP, and speech datasets, improving inter-annotator agreement from 0.71 to 0.91 and delivering 97–100% SLA compliance across enterprise AI projects.
Previously, as a data annotation expert and quality reviewer, I validated 5M+ labeled assets across multimodal datasets. I reduced dataset rework cycles by 35% through edge-case resolution and mentored annotators to improve individual accuracy by 18–25%. I also served as a QA team lead for remote AI data operations, managing 25–40 annotators and improving overall annotation accuracy from 85% to 95%.
I bring hands-on expertise across annotation audits, guideline development, and data governance—covering SLA & KPI management, remote team leadership, and inter-annotator agreement tuning. My work spans computer vision (object detection, segmentation, keypoints), NLP & LLMs (NER, intent classification, sentiment analysis), and speech AI (transcription and speaker labeling), supported by tools like Labelbox, CVAT, SuperAnnotate, and Jira.
Experience
Work history, roles, and key accomplishments
Senior QA Manager
Crowdgen
Jan 2019 - Present (7 years 5 months)
Led QA operations for 60–120 globally distributed annotators, reducing annotation error rates by 32% and raising first-pass acceptance to 98%+. Built audit frameworks covering 2M+ assets per quarter and improved inter-annotator agreement from 0.71 to 0.91 while sustaining 97–100% SLA compliance and improving downstream model accuracy by 8–15%.
Data Annotation Specialist
Cloudfactory
Jan 2022 - Jan 2023 (1 year)
Delivered 1,200+ annotations/day with 96% accuracy and contributed to overall quality and productivity performance. Ranked in the top 10% for quality and productivity.
QA Team Lead
Remotasks
Jan 2020 - Jan 2023 (3 years)
Managed remote QA teams of 25–40 annotators and improved overall annotation accuracy from 85% to 95%. Served as escalation lead for complex quality and guideline issues.
Data Annotation Expert
Toloka
Jan 2020 - Jan 2022 (2 years)
Reviewed and validated 5M+ labeled assets across multimodal datasets, cutting dataset rework cycles by 35% through edge-case resolution. Mentored annotators to improve individual accuracy by 18–25%.
Education
Degrees, certifications, and relevant coursework
Egerton University
Bachelor’s Degree, Nutrition and Dietetics Science
Earned a Bachelor’s Degree in Nutrition and Dietetics Science from Egerton University.
Alison
Science Diploma, Science
Completed a Science Diploma program through Alison.
Amazon
Artificial Intelligence Diploma, Artificial Intelligence
Completed an Artificial Intelligence Diploma program associated with Amazon.
Alison
Prompt Engineering Certificate, Prompt Engineering
Completed a Prompt Engineering Certificate program through Alison.
University of the People
Master’s Degree, Public Health Science
Earned a Master’s Degree in Public Health Science from University of the People.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Social media
Job categories
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