Juma D.

Key Skills

Software

Other

Data Annotation Tech

iMerit

OneForma

Appen

Top Subject Matter

English linguistics

claim extraction

syntactic/semantic annotation for NLP

Top Data Types

Text

Document

Audio

Top Task Types

Question Answering

Classification

Data Collection

Segmentation

Text Summarization

Text Generation

Transcription

Freelancer Overview

Lead Linguistic Annotator, LexiTech Solutions (Remote). Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other and Google Drawing Tool. Education includes Master of Arts, University of Nairobi and Bachelor of Arts, Kenyatta University. AI-training focus includes data types such as Text and Document and labeling workflows including Question Answering, Classification, and Data Collection.

Labeling Experience

Lead Linguistic Annotator, LexiTech Solutions (Remote)

OtherTextQuestion Answering

Led linguistic annotation for NLP model training by extracting minimally-complete propositions from high-density source text with strict clarity and no ambiguity requirements. Conducted deep-dive analysis of complex sentences to validate extracted claims and maintain rigorous quality standards. Managed a team of 10+ annotators through weekly feedback cycles and periodic quality reviews to ensure compliance with project guidelines. •Extracted verifiable propositions/claims for NLP training •Performed ambiguity checks on complex sentence structures •Created and maintained an 'Edge Case Encyclopedia' to reduce labeler confusion •Oversaw annotator QA and guideline adherence

2022 - Present

Language Specialist & Trainer, Global Data Services

TextClassification

Authored and delivered training materials for new labelers focused on identifying parts of speech and their functions in varied sentence structures. Facilitated daily Q&A to resolve linguistic bottlenecks and clarify grammatical relationships needed for production labeling. Used visual diagramming to represent independent and dependent clauses for training visual aids and to standardize annotation understanding. •Created labeler onboarding/training content •Guided POS/function identification across sentence types •Supported labelers via daily Q&A •Applied clause diagramming for instructional materials

2019 - 2021

Junior Technical Writer, East Africa Media Group

OtherDocumentData Collection

Performed content analysis on archived texts to extract key data points for digital migration. Supported development of internal style guides to improve consistency in linguistic documentation workflows. Ensured grammatical precision and semantic accuracy in technical documentation through editing and drafting. •Extracted structured data points from archived texts •Edited and drafted technical documentation with semantic accuracy •Assisted style guide creation for internal teams •Improved consistency of linguistic outputs

2017 - 2019

Education

Work History