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C
Collins K.

Collins K.

Freelance AI Data Contributor — Swahili Annotation & Transcription ,Computer Sciences and Related Tasks(Independent / Remote)

Kenya flagNairobi, Kenya

Key Skills

Software

Other

Top Subject Matter

Swahili language data annotation and transcription
speech and conversational AI training
Multilingual NLP annotation (Swahili–English) for LLM training

Top Data Types

AudioAudio
TextText

Top Task Types

TranscriptionTranscription
RLHFRLHF

Freelancer Overview

Freelance AI Data Contributor — Swahili Annotation & Transcription (Independent / Remote). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. AI-training focus includes data types such as Audio and Text and labeling workflows including Transcription and RLHF. I am building a strong foundation in software engineering, data structures, algorithms, database systems, object-oriented design, and networking. My most substantial work experience comes from leading the development of HERMAN, a full-stack AI-powered customer support chatbot built for Urban Hype KE, a real Nairobi fashion retailer, where I was responsible for the Java backend, MySQL database architecture, data modeling, system documentation, and AI response quality evaluation across hundreds of iterative test cycles. On the spreadsheet and data side, I have built Excel models using advanced formulas including INDEX/MATCH, XLOOKUP, and dynamic arrays, designed Power Query transformation pipelines to clean and restructure large datasets, developed VBA macros that automated repetitive reporting workflows, and created pivot table dashboards for business stakeholders — complemented by Python automation skills using openpyxl, pandas, and xlwings for programmatic spreadsheet generation and large-dataset processing. Beyond Excel, I have deep hands-on experience with AI systems and training data workflows, having independently evaluated and benchmarked outputs from multiple large language models including Gemma 4 and LLaMA variants using LM Studio and Ollama, and built OMNISCIENT, an autonomous AI knowledge agent using React and the Anthropic API, designed to systematically assess and document the accuracy, fluency, and reliability of AI-generated content. I bring strong attention to detail, a disciplined approach to documenting assumptions and methodology, the ability to work independently and deliver asynchronously under time constraints, and a genuine passion for solving complex, real-world data problems.

Labeling Experience

Freelance AI Data Contributor — Swahili Annotation & Transcription (Independent / Remote)

OtherTextTextRLHFRLHF

Performed multilingual text annotation and linguistic quality assurance on Swahili–English datasets to support LLM and generative AI training. Applied intent tagging, sentiment detection, and cultural context labels consistent with annotation guideline frameworks. • Labeled intent and sentiment for multilingual training data • Conducted linguistic quality assurance (LQA) • Generated Swahili Q&A pairs and prompt–response datasets • Collected preference data for response ranking / RLHF-style evaluation

2023 - Present

Freelance AI Data Contributor — Swahili Annotation & Transcription (Independent / Remote)

OtherAudioAudioTranscriptionTranscription

Provided Swahili audio transcription with professional-grade accuracy for speech recognition and conversational AI training datasets. Transcribed content across Standard Swahili, colloquial registers, and Kenyan regional dialects while maintaining phonetic precision. • Delivered AI-ready Swahili transcription datasets • Ensured dialect recognition and phonetic accuracy • Followed project style guides and quality frameworks • Completed work in asynchronous remote workflows with high accuracy

2023 - Present

Education

M

Maseno University

Bachelor of Science, Computer Science & Informatics

Bachelor of Science
2022

Work History

H

HERMAN Project

Excel Modeling Lead & Data Systems Developer

Nairobi
2024 - Present
P

Personal Projects

Python Spreadsheet Automation Developer

Nairobi
2023 - Present