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Sahal osman

@sahalosman

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I evaluate LLM outputs, annotate complex data, and improve AI quality through RLHF and prompt engineering.

Kenya

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What I'm looking for

I'm looking for work improving AI systems through LLM evaluation, RLHF, prompt engineering, data annotation, and rigorous quality assurance.

I evaluate and rank LLM responses for truthfulness, helpfulness, logic, safety, and coherence as a freelance AI Trainer and Data Annotator.

I apply RLHF, supervised fine-tuning workflows, prompt engineering, hallucination detection, and fact verification to improve generative AI outputs. I maintain quality audit scores above 95% across platform assessments and live task queues.

I also assess and debug basic Python, HTML, and JavaScript snippets, using computer science logic to identify syntax, formatting, and algorithmic issues. In my LLM Prompt & Code Evaluation Sandbox, I built prompt chains to benchmark data-structure capabilities and document edge cases.

Previously, I curated and cleaned JSON and CSV datasets, supported software testing and troubleshooting, and documented technical workflows while following data security and operational protocols.

Experience

Work history, roles, and key accomplishments

Current

Freelance AI Trainer & Data Annotator

Current

Self Employed

Jan 2024 - Present (2 years 8 months)

Evaluate and rank LLM response candidates for truthfulness, helpfulness, logic, safety, and coherence. Perform fine-grained text annotation, intent classification, and entity extraction following technical rubrics.

RLHF Prompt Engineering Text Annotation Intent Classification Entity Extraction Quality Assurance Python HTML JavaScript JSON CSV

Technical Data Assistant / IT Support Specialist

Self Employed

Jan 2023 - Dec 2024 (1 year 11 months)

Curated, structured, and cleaned datasets in JSON and CSV formats for internal record system updates. Assisted in testing software functionality, troubleshooting system environments, and documenting workflow procedures.

Data Curation Data Cleaning JSON CSV Software Testing Troubleshooting Documentation Data Security

Education

Degrees, certifications, and relevant coursework

Foundational Computer Science & Software Engineering Studies

Foundational Studies, Computer Science

Completed foundational coursework in computer science and software engineering, including programming fundamentals, data structures, algorithms, database systems, and web development basics.