1. Built data-processing pipelines for LLMs in Python integrating OpenAI, Llama, and Gemini APIs through implementation of data-selection strategies including seed-based, embedding-based, alongside domain expert in the loop for ∼1k records.

2. Designed an agentic RAG pipeline (PyTorch + SentenceTransformers) with tool-use for top-K selection, improving relevance and recall and achieving ∼80% F1 in classification tasks.

3. Automated reporting with Pandas/NumPy, producing results across 12 model × label setups and reducing run time by 3x.

1. Enhanced global search and filter efficiency by 10% through advanced Elasticsearch indexing and GraphQL API implementation, improving data retrieval speed and accuracy for supply chain operations.

2. Architected a resilient Python-based ETL pipeline to launch Intermodal shipment mode, migrating 216,000+ multi-leg records between heterogeneous data stores (MySQL to MongoDB) with zero data loss during a critical schema redesign.

3. Managed reorganization of the Rules Framework into a dynamic Business Rule Management System, enforcing complex role-mode-status compliance constraints across 10+ enterprise clients while decoupling business logic from the core codebase.

4. Built Jenkins CI/CD pipelines for isolated dev setups, cutting deployment time by 40% and improving release reliability.

5. Implemented a resilient Python library for HashiCorp Vault, ensuring secure secret injection with 99.99% uptime for 10 clients.

1. Maintained and optimized full-stack codebase for 5 OS iterations, enhancing performance for 1.48+ billion devices.

2. Optimized System UI (Quick Panel & Notifications) in Java for low end devices, cutting memory use 20% and battery drain 20%, reducing crash rate 85% and boosting user satisfaction to 4.4/5 across 1M+ devices.

3. Handled 5 Application and Framework modules - Settings, Calendar, QuickPanel, Status-Bar and warning notifications.

4. Upgraded the customer satisfaction metrics by 10% through implementation of Search feature for Quick Panel.

5. Collaborated cross-functionally with teams to build backend data-porting solutions integrating 20+ network operators.

Worked on UI and Notifications which helped launch the world’s first foldable phone at Samsung HQ, South Korea.