Back to Developers

VAIBHAV MANDWARIYA

Roorkee, Uttarakhand 1+ yrs exp 64 · Good

About

No bio added yet

Skills & Expertise (17)

SQL Intermediate

7.9/10

Years Exp

Python Intermediate

7.4/10

Years Exp

MS Excel Intermediate

7.3/10

Years Exp

Power BI Intermediate

6.8/10

Years Exp

Tableau Intermediate

6.5/10

Years Exp

Data Modelling Business Analytics Probability & Statistics Cohort Analysis Funnel Analysis A/B testing VBA Seaborn NumPy Pandas Postgresql MySql

Work Experience

Analyst - Saarthi

PhysicsWallah Ltd.

Apr 2025 - Mar 2026

Monitored and optimized the doubt-resolution funnel for the Saarthi department, maintaining a 95%+ SLA compliance and reducing Average Handle Time (AHT) by 18% through better queue management. Leveraged SQL to analyze a dataset of 10,000+ student queries in Mathematics; identified top 5 conceptual bottlenecks and collaborated with the content team to create targeted 'Bridge Lectures,' reducing repetitive query volume by 22%. Monitored DAU/WAU via BigQuery to map user drop-off points; proposed UI/UX enhancements that drove a 12% increase in Saarthi feature adoption and retention. Evaluated CSAT and NPS scores using text-mining to identify faculty performance gaps; launched a peer-review system that boosted overall NPS by 15 points.

AI/LLM Data Trainer

Outlier AI, Inc.

Jun 2024 - Mar 2025

Executed SFT and RLHF for Meta’s frontier models, directly improving reasoning, safety, and response accuracy. Evaluated 150+ multi-turn LLM interactions for truthfulness & instruction adherence, reducing dataset hallucinations. Reviewed 80+ peer-submitted tasks, providing technical feedback on evaluation rationales to maintain data quality. Developed adversarial prompts to stress-test model boundaries in localization and verbosity for production-grade.

Product and Growth Intern

StoxHero Games Technologies

Aug 2023 - Sep 2023

Analyzed competitors (Bullspree, Trinkerr) to identify product gaps and suggest UI/UX improvements. Designed a growth plan to boost DAU by rolling out engagement initiatives like the TenX trading program. Drove a 15% increase in total users and a 6% rise in TenX adoption within two months through targeted user acquisition.