I am a multilingual Data AI Evaluation & RLHF Specialist with proven experience across search relevance, multilingual ranking, model comparison, and quality assurance for large-scale LLM training. I deliver high-accuracy judgments on SERP relevance, trustworthiness, safety, and instruction compliance, with a track record of shaping ethical alignment and reliable model behavior. My GIS and remote sensing background provides a rigorous analytical mindset, enabling cross-disciplinary evaluation bridging AI and geospatial intelligence. Colleagues recognize my analytical rigor, consistency, and ability to translate complex insights into practical QA processes and editorial standards.

Daffa Rizal Fauzan Sudrajat

I am a multilingual Data AI Evaluation & RLHF Specialist with proven experience across search relevance, multilingual ranking, model comparison, and quality assurance for large-scale LLM training. I deliver high-accuracy judgments on SERP relevance, trustworthiness, safety, and instruction compliance, with a track record of shaping ethical alignment and reliable model behavior. My GIS and remote sensing background provides a rigorous analytical mindset, enabling cross-disciplinary evaluation bridging AI and geospatial intelligence. Colleagues recognize my analytical rigor, consistency, and ability to translate complex insights into practical QA processes and editorial standards.

Available to hire

I am a multilingual Data AI Evaluation & RLHF Specialist with proven experience across search relevance, multilingual ranking, model comparison, and quality assurance for large-scale LLM training. I deliver high-accuracy judgments on SERP relevance, trustworthiness, safety, and instruction compliance, with a track record of shaping ethical alignment and reliable model behavior.

My GIS and remote sensing background provides a rigorous analytical mindset, enabling cross-disciplinary evaluation bridging AI and geospatial intelligence. Colleagues recognize my analytical rigor, consistency, and ability to translate complex insights into practical QA processes and editorial standards.

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Language

Indonesian
Fluent
English
Advanced

Work Experience

Remote AI Search Quality Rater & QA Specialist (Freelancer) at Truelancer Enterprise / Mindrift AI
October 1, 2025 - November 7, 2025
Selected as an independent QA specialist to evaluate and refine LLM search performance and SERP ranking quality. Conduct high-fidelity QA reviews, audit annotations, and implement corrective decisions to strengthen compliance, reliability, and overall model alignment. Maintained >95% performance accuracy and contributed to improved annotator quality via targeted feedback and error-pattern recognition.
AI Rater & Evaluator (Freelancer) at Outlier AI
September 30, 2025 - September 30, 2025
Evaluated, ranked, and rewritten 300+ high-sensitivity AI-generated responses for RLHF projects; benchmarked 200+ STEM-focused models; designed scoring rubrics for human evaluation and provided constructive qualitative feedback; produced multi-speaker conversational audio datasets for SFT; directed structured annotations to reduce bias and ensure consistency.
Remote Audio Data Contributor at Aligner AI
June 30, 2025 - June 30, 2025
Delivered Indonesian voice datasets for speech recognition and conversational AI; validated data meeting clarity, acoustic quality, and natural conversation flow; recorded and submitted datasets for STT and TTS; identified edge cases and data anomalies to strengthen linguistic guidelines.
Proofreader & Layout Editor (Seasonal) at GEA Geography Journal – Department of Geography Education UPI
April 30, 2025 - April 30, 2025
Ensured manuscripts adhered to editorial and linguistic standards; performed final QA checks before publication; proofread and revised articles across GIS and geography education topics; standardized authorship details and ensured linguistic quality.
AI Search Quality Rater & QA Specialist at Mindrift AI / Truelancer Enterprise
October 1, 2025 - November 9, 2025
Selected as an independent QA specialist to evaluate and refine Large Language Model (LLM) search performance and SERP ranking quality for advanced AI systems. Conducted high-fidelity QA reviews of search relevance tasks labeled by annotators to ensure 100% compliance with project guidelines and quality criteria. Audited, refined, and validated annotator decisions; implemented corrective edits; enforced strict compliance with relevance, trustworthiness, helpfulness, and freshness criteria. Maintained >95% performance accuracy and contributed to improved annotator quality via targeted feedback and error-pattern recognition.
AI Rater & Evaluator at Outlier AI
September 1, 2025 - September 1, 2025
Evaluated, ranked, and rewritten 300+ high-sensitivity AI-generated responses for RLHF projects, focusing on accuracy, fluency, and guideline adherence. Analyzed and benchmarked 200+ STEM models on STEM prompts to deliver large-scale analysis of systematic model strengths and weaknesses. Designed scoring rubrics for human evaluation tasks and provided constructive qualitative feedback to inform refinement of evaluation metrics. Produced multi-speaker conversational audio datasets for SFT and directed structured annotations to reduce bias and improve data quality.
Remote Audio Data Contributor at Aligner AI
June 1, 2025 - June 1, 2025
Delivered Indonesian voice datasets for speech recognition and conversational AI, recording and validating data for clarity, acoustic quality, and natural conversation flow. Generated datasets for training/evaluating STT and TTS systems. Analyzed content evaluation and data anomalies to strengthen linguistic guidelines and ensured all audio met technical specifications.
Proofreader & Layout Editor at GEA Geography Journal – Department of Geography Education UPI
April 1, 2025 - April 1, 2025
Upholding academic publication standards by performing final QA checks, proofreading manuscripts across GIS, geography, and related disciplines, and ensuring compliance with editorial guidelines. Verified authorship details, rectified inconsistencies, and standardized language to maintain clarity and scholarly quality before publication.

Education

Bachelor at Universitas Pendidikan Indonesia
January 1, 2020 - January 1, 2024
Bachelor of Geography at Universitas Pendidikan Indonesia
January 1, 2020 - January 1, 2024

Qualifications

Data Visualization Processing Certification
January 1, 2021 - November 7, 2025
Programming Certification Using Python Language
January 1, 2021 - November 7, 2025

Industry Experience

Education, Software & Internet, Media & Entertainment, Professional Services, Other