Defri Bayu

Detail-oriented and analytical Data Annotator and Graduate Student with extensive experience in training large language models (LLMs) and optimizing AI systems through global platforms. Proven track record at Centific managing high-stakes projects, including Search Relevance Evaluation (Lighthouse Project), AI Quality Assurance (Project AMP), and Multimodal Annotation (UHRSCrowdsource & TTS Managed LE). Synthesizes strong research, data analysis, and qualitative coding skills from a public policy and government background to deliver high-precision datasets, ensure guideline compliance, and improve machine learning model accuracy.

AI Data Annotator & Quality Assurance Specialist at Centific (2026-01 – Present)

• Lighthouse Project: Evaluated and rated search engine query results, content relevance, and AI-generated responses based on strict, complex project guidelines to optimize information retrieval algorithms.
• Project AMP: Conducted high-quality data labeling, prompt safety evaluation, and ground-truth validation to train and fine-tune Generative AI and Large Language Models (LLMs).
• UHRS-TTS Managed LE & Crowdsource: Performed multimodal data annotation including Text-to-Speech (TTS) phonetic transcription, audio segmentation, time-stamping, and quality checking to improve voice recognition and linguistic AI models.
• Consistently maintained individual quality and accuracy metrics above target thresholds across all assigned workflows through rigorous attention to detail.

Research Intern at The SMERU Research Institute (2025-10 – 2025-12)

• Conduct literature reviews and collect secondary data to support ongoing research projects
• Assist researchers in data analysis, report drafting, and preparation of policy briefs
• Participate in fieldwork, stakeholder interviews, and dissemination activities when required

Finance Officer (Civil Servant) at Deputy Assistant for Economy Digital, Coordinating Ministry for Economic Affairs of the Republic of Indonesia (2019-01 – 2024-08)

• Play a role in financial planning, financial management, and financial reporting
• Provided financial and administrative support

Master Degree in Management and Public Policy – Universitas Gadjah Mada (2024-08)

Bachelor Degree in Management – Universitas Bakrie (2021-02 – 2022-08)