Kajwang K.

Key Skills

Software

Mercor

Other

Appen

Data Annotation Tech

Img Lab

Mindrift

Scale AI

Telus

Top Subject Matter

Prompt Evaluation for AI Models

AI Training & Quality Evaluation

LLM and Multimodal Data Collection

Top Data Types

Text

Document

Image

Top Task Types

Data Collection

Bounding Box

Segmentation

Classification

Freelancer Overview

Prompt Evaluation & Data Validation Specialist. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other and Mercor. Education includes Bachelor of Science, University of Nairobi (2024) and Certificate, School of Computing, University of Nairobi (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

Prompt Evaluation & Data Validation Specialist

OtherText

As a Prompt Evaluation & Data Validation Specialist at RWS Group, I implemented data quality assurance and reconciliation processes to ensure high-quality labeled data for financial reporting and analysis. My responsibilities included conducting accuracy checks on data annotation, validating labeled outputs, and supporting prompt evaluation initiatives for large language models. I also contributed to process automation for improving operational efficiency in the evaluation pipeline. • Reduced critical data errors by 95%, resulting in audit-ready and investor-aligned records. • Utilized prompt evaluation methods to assess LLM output quality. • Automated data validation tools and workflows for error reduction. • Ensured accurate annotation and reporting to support donor and investor reporting.

2025 - Present

LLM & Generative AI Specialist

MercorTextData Collection

As a LLM & Generative AI Specialist at Mercor, I curated and validated multimodal datasets and synthesized metrics into reports for stakeholders. My work involved collecting, annotating, and evaluating diverse data types for use in LLM training and monitoring. I also designed playbooks and provided training to team members to ensure high standards for data labeling and compliance. • Curated multimodal datasets for LLM and generative AI workflows. • Validated and annotated data for improved reporting quality. • Mentored team members on annotation protocols and compliance. • Synthesized transaction metrics into actionable reports for evaluation.

2017 - Present

Education

Work History