Singh Sapna

Computer Applications postgraduate with hands-on industry experience as an Associate in LLM post-training, including data annotation, prompt evaluation, and RLHF-based model response review. Strong foundation in programming (C, C++), web development (HTML, CSS), and software testing (SDLC, STLC). Certified in Salesforce CRM fundamentals. Detail-oriented, quality-focused, and quick to learn new tools and workflows.

Associate – LLM Post-Training (Intern) - EtharaAI

(2026-01 - 2026-07)

• Performed data annotation and labeling on large-scale text datasets to support supervised fine-tuning of large language models, ensuring consistency and accuracy against project guidelines.
• Wrote and evaluated prompts across varied tasks and domains to test model behavior, identify gaps, and improve response quality.
• Reviewed and rated model-generated responses as part of Reinforcement Learning from Human Feedback (RLHF) workflows, ranking outputs based on relevance, correctness, and safety guidelines.
• Collaborated with reviewers/team leads to maintain annotation quality standards and met daily throughput and accuracy targets.
• Documented recurring model error patterns and edge cases to help refine future training data and guideline updates.

Master of Computer Applications - Computer Applications - Noida Institute of Engineering & Technology (2024 - 2026)

Bachelor of Computer Applications - Computer Applications - M. M. M. Mahila College (2020 - 2023)