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Mugisha Caleb

@mugishacaleb

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AI data evaluator and junior analyst improving LLM quality, dataset integrity, and QA.

Poland

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What I'm looking for

I’m looking for a role where I can improve AI/data quality end-to-end—reviewing model outputs, auditing datasets, strengthening QA processes, and turning insights into clear documentation that helps teams ship consistently.

I’m an AI Data Evaluator and junior analyst focused on making AI outputs reliable. In my current remote contract, I reviewed 2,000+ LLM outputs for instruction following, factual accuracy, tone, policy compliance, and coherence, while maintaining 98%+ internal QA agreement through guideline-based scoring and escalation rules.

I also strengthen the systems behind the work—auditing datasets with C++ and Python/pandas, flagging hallucinations and low-quality outputs with structured rubrics, and documenting edge cases to improve consistency across annotation batches. Beyond evaluation, I’ve supported product and operations decisions using user analytics, spearheaded a redevelopment of an internal tracking system for 125 employees, and upgraded legacy application code to cut run-time performance by 50%.

Experience

Work history, roles, and key accomplishments

ML Data Annotation Assistant

Independent Project

Oct 2025 - Feb 2026 (4 months)

Spearheaded a pricing restructure using consumer willingness to pay, implementing a three-tier model that increased average sales by 35% and margin by 12%. Supported multilingual dataset labelling and QA, and refactored legacy production code to improve usability and cut run time performance by 50%.

Pricing Strategy Data Annotation Data QA Multilingual Labeling literature review Code Refactoring Datasets

IT Project Manager Assistant

HKS NGO Initiative

Jun 2024 - May 2025 (11 months)

Analyzed data from 500 monthly active users to guide marketing and product decisions, doubling app engagement time, reducing drop-off by 30%, and increasing social media shares by 3x. Redeveloped an internal tracking system used by 125 employees, delivering 20+ new features and reducing save/load time by 20% and operation time by 15%.

Project Management Product Marketing Strategy Performance Optimization Process Improvement

Education

Degrees, certifications, and relevant coursework

Vistula University

Bachelor of Engineering, Computer Science (Cybersecurity)

Pursuing a Bachelor of Engineering in Computer Science with a Cybersecurity specialization. Coursework focus includes network security, cryptography, discrete math, and systems programming.