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Robert Maina

@robertmaina

I improve operational data quality and evaluate AI outputs through rigorous validation, root-cause analysis, and structured scoring.

Kenya

Message

What I'm looking for

I'm looking for data, operations, or AI evaluation work where I can improve data quality, investigate complex issues, evaluate LLM outputs, and turn technical findings into actionable process improvements.

I've improved vessel ETA prediction accuracy by more than 25% at eeSea by investigating discrepancies through structured data validation and root-cause analysis.

At Dataseal Software, I resolved data integration errors that reduced system discrepancies by 35%, designed data models for reliable reporting, and improved query performance by 20–50%. I also created data dictionaries and lineage maps that made operational data more transparent.

I'm now applying rubric-based assessment to LLM outputs, evaluating instruction following, truthfulness, correctness, writing quality, and reasoning. I identify hallucinations, unsupported claims, inconsistencies, and logical gaps, then turn findings into structured improvement reports.

I bring experience working across remote, fast-paced workflows with SQL, Python, Excel, AWS, BigQuery, and data annotation tools.

Experience

Work history, roles, and key accomplishments

Operations Analyst

eeSea

Apr 2022 - Sep 2024 (2 years 5 months)

Investigated and resolved vessel ETA discrepancies through structured data validation and root cause analysis, improving prediction accuracy by more than 25%. Coordinated with technical and product teams to clarify data issues and implement system improvements.

Data Validation Root Cause Analysis SQL Excel Google Sheets