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F

Felix W.

AI | LLM SPECIALIST

Kenya flagNairobi, Kenya

Key Skills

Software

iMeritiMerit
TelusTelus
LabelboxLabelbox
Scale AIScale AI
MercorMercor

Top Subject Matter

Machine Learning, Data Annotation, Artificial Intelligence
Computer Vision, Labelling, Localization.
Speech AI, Transcription, Multilingual Script Writer

Top Data Types

ImageImage
TextText
AudioAudio
DocumentDocument

Top Task Types

PolygonPolygon
TranscriptionTranscription
Text GenerationText Generation
Bounding BoxBounding Box
SegmentationSegmentation
Computer Programming/CodingComputer Programming/Coding
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Evaluation/RatingEvaluation/Rating
RLHFRLHF
CuboidCuboid
Data CollectionData Collection
PolylinePolyline
Entity (NER) ClassificationEntity (NER) Classification
ClassificationClassification

Freelancer Overview

I am an experienced AI Data Specialist and Computer Scientist with a strong background in AI training data preparation, data labeling, transcription, and multilingual content evaluation for machine learning and Large Language Model (LLM) systems. I have worked with globally recognized organizations including iMerit, TELUS International, Uber AI, and RWS on projects involving AI data annotation, image labeling, audio evaluation, multilingual script writing, transcription, speech assessment, and linguistic validation. My work has included preparing high-quality datasets for AI and NLP systems through polygon labeling, semantic segmentation, bounding box annotation, transcription review, prompt evaluation, and content quality assurance while strictly adhering to detailed annotation guidelines and productivity standards. What sets me apart is my ability to combine technical expertise with strong analytical and linguistic skills to deliver highly accurate and consistent outputs in remote, deadline-driven environments. I am proficient in annotation tools such as CVAT, Labelbox, and LabelImg, and I have experience supporting AI model development through data validation, quality assurance, and AI response evaluation workflows. Additionally, my background in software engineering, backend systems, and AI workflows enables me to understand both the technical and operational aspects of AI training pipelines. I am highly detail-oriented, adaptable, and committed to maintaining the highest standards of data quality, confidentiality, and project compliance across complex AI and machine learning aspects.

Labeling Experience

AI | LLM Data Annotator – Uber AI (Remote)

TextText

Analyzed, labeled, and evaluated LLM datasets for improving AI accuracy and language understanding. Reviewed prompts and AI-generated outputs to provide feedback and support AI model training. Ensured annotation compliance with project standards and collaborated in language model improvement efforts. • Evaluated and rated LLM outputs for language correctness • Reviewed prompts for consistency and quality • Provided detailed feedback for model improvement • Supported LLM training through annotation and validation

2025 - 2026
iMerit

AI Specialist and Transcriptionist – iMerit Technology (Remote)

iMeritiMeritImageImagePolygonPolygon

Worked on image and audio dataset annotation projects to train machine learning and computer vision models. Performed image labeling, audio transcription, and dataset validation for high-quality AI data delivery. Conducted quality assurance reviews and collaborated with distributed teams to enhance dataset quality and annotation accuracy. • Labeled visual datasets using polygon and bounding-box techniques • Annotated audio datasets through transcription and segmentation • Ensured quality by conducting guideline compliance checks • Used CVAT and LabelImg for efficient data annotation workflows

2025 - 2026

AI Language Specialist & Transcriptionist – RWS (Remote)

AudioAudioTranscriptionTranscription

Performed multilingual transcription, linguistic evaluation, and quality assurance on audio and text content for AI and NLP systems. Ensured grammatical accuracy and consistency while preparing annotated datasets to train and evaluate language models. Conducted speech evaluation and content validation under strict project guidelines. • Transcribed and annotated speech data • Evaluated language and grammatical quality • Prepared structured datasets for language model training • Maintained high dataset quality standards through QA

2025 - 2025
Telus

Professional Multilingual Script Writer – TELUS International (Remote)

TelusTelusTextTextText GenerationText Generation

Created, reviewed, and refined multilingual scripts and text data for AI training and natural language evaluation. Reviewed and adapted content to align with linguistic and cultural guidelines for NLP systems. Participated in multilingual dataset annotation and content adaptation projects for AI training. • Wrote and validated multilingual scripts for NLP • Adapted text data for training diverse language models • Conducted linguistic evaluation of AI-generated text • Collaborated on multilingual AI dataset projects

2024 - 2025

Education

A

ALX Africa

Certification , Software Engineering

Certification
2024 - 2025
P

Pwani University

Bachelor of Science, Computer Science

Bachelor of Science
2020 - 2025

Work History

S

Scale AI

Remote Software Engineer

California
2023 - 2025
J

Judiciary of Kenya

IT Infrastructure & Technical Support

Nairobi
2022 - 2023