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Natali M.

Natali M.

AI Engineer — Ngeni Labs (Oct 2023 – Jan 2025)

Kenya flagNairobi, Kenya

Key Skills

Software

Data Annotation TechData Annotation Tech

Top Subject Matter

NLP/LLM evaluation
RLHF preference ranking
safety and quality review

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

RLHFRLHF

Freelancer Overview

AI Engineer — Ngeni Labs (Oct 2023 – Jan 2025). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and AWS. Education includes Bachelor of Technology, Technical University of Kenya. AI-training focus includes data types such as Text and labeling workflows including RLHF, Evaluation, and Rating.

Labeling Experience

Data Analyst — Afritive AI Solutions (Jan 2025 – Present)

TextText

Designed and validated large-scale data pipelines and quality control processes that mirror annotation QA used for LLM training and evaluation. Performed rigorous data validation and reconciliation by applying rule-based checks and human judgment to flag inconsistent or ambiguous entries for training readiness. Authored and enforced labeling guidelines and data documentation standards to ensure consistent, reproducible dataset outputs. • Analyzed datasets to detect outliers and edge cases relevant to evaluating LLM correctness and safety. • Translated complex requirements into actionable data tasks in collaboration with engineers and product stakeholders. • Produced structured documentation and evaluation-oriented guidelines for cross-functional teams. • Implemented data quality controls using Kafka and Python workflows transferable to annotation QA.

2025 - Present

AI Engineer — Ngeni Labs (Oct 2023 – Jan 2025)

TextTextRLHFRLHF

Conducted LLM and training-data evaluation work aligned with RLHF-ready preference ranking and comparative assessment workflows. Applied human-judgment style QA to identify ambiguous, misleading, or harmful inputs that require careful safety review in model training contexts. Supported prompt engineering and model output assessment to improve coherence, accuracy, and helpfulness for downstream training. • Built data platforms for managing training data at scale using Kafka, Snowflake, and Spark. • Created and operationalized guidelines/documentation enabling consistent outputs across diverse teams. • Performed quality control and edge-case identification to reduce errors in training data and evaluations. • Improved processing efficiency through iterative workflow optimization.

2023 - 2025

Education

T

Technical University of Kenya

Bachelor of Technology, Applied Statistics

Bachelor of Technology
Not specified

Work History

A

Afritive AI Solutions

Data Analyst

Nairobi
2025 - Present
N

Ngeni Labs

Data Engineering Lead

Nairobi
2023 - 2025