Jayantha Poojary
Bangalore
Summary
AI/Data Scientist with expertise in Generative AI, NLP, and machine learning, experienced in building end-to-end intelligent systems from modeling to production. Proven track record in developing scalable solutions, including retrieval-augmented generation, semantic search, and LLM evaluation frameworks, improving model accuracy and user experience. Combines deep AI/ML knowledge with full-stack engineering experience to deliver robust, production-ready systems with measurable business impact.
Overview
16
16
years of professional experience
1
1
Certification
Work History
Senior Advisor Data Science
Dell
Bangalore
01.2021 - Current
- Contributed to an AI-powered virtual assistant enabling automated resolution of customer queries across orders, renewals, memberships, and FAQs.
- Designed and deployed LLM-driven conversational workflows using retrieval-augmented generation (RAG), including multilingual support, improving response relevance and automation efficiency.
- Built hybrid search systems combining semantic (vector-based) and lexical (BM25) retrieval for accurate, context-aware query handling across languages.
- Developed and optimized re-ranking models to enhance answer quality and ranking precision.
- Designed a multi-class classification model to identify user segments (e.g., business, home, gamer), enabling personalized recommendations and improving relevance of responses.
- Implemented NLP-based intent classification and personalization pipelines to drive contextual recommendations (e.g., recent activity, popular content).
- Applied advanced NLP techniques for multilingual query understanding and embedding-based retrieval.
- Architected a token-efficient placeholder strategy for URLs in multilingual RAG pipelines, replacing links with compact tokens during LLM inference and resolving them post-processing, significantly reducing token usage, latency, and inference cost.
- Partnered with cross-functional teams to deliver scalable AI solutions and improve customer engagement metrics.
- Led LLM evaluation and A/B experimentation, driving continuous improvements in response accuracy and user satisfaction.
Senior Software Engineer
Cognizant
Minneapolis
01.2016 - 01.2021
- Delivered a large-scale Manufacturing Execution System (MES) supporting inventory management and production workflows for 20K+ global operators.
- Led sprint execution and coordinated across feature teams, ensuring high code quality, timely delivery, and smooth releases.
- Designed and developed scalable backend systems to enhance functionality and system performance.
- Improved system performance by integrating caching strategies, enabling faster data access and reduced latency.
- Built an environment provisioning tool to streamline setup processes, reducing manual effort and improving developer productivity.
- Developed a feature toggle system to dynamically control production features, enabling safer releases and faster experimentation.
- Created observability dashboards to identify performance bottlenecks and track improvements, providing actionable insights to stakeholders.
Senior Software Programmer
L&T Infotech
New York
01.2013 - 01.2016
- Collaborated with global media and entertainment clients to design and deliver internal applications across domains such as reservations, taxation, rewards, and compensation planning.
- Led requirement discussions with stakeholders, translating business needs into structured documentation and scalable system designs.
- Established a standardized approach for requirement gathering and documentation, improving clarity and delivery efficiency.
- Developed and delivered application enhancements while ensuring code quality and maintainability.
- Mentored team members, driving skill development and effective knowledge transfer across the team.
Junior Software Engineer
Annet Technologies
Mumbai
01.2010 - 01.2013
- Developed new and customization of the existing features for the high-profile progressive web application using .NET MVC, JavaScript and jQuery.
- Developed components using JavaScript and jQuery to enhance user interface experience.
- Implemented Google Maps API 3 and barcode functionality to improve application features.
- Developed end to end aspx/ascx pages in N-tier architecture.
- Worked on Telerik and AJAX Controls, web services.
- Conducted unit testing and created manual test cases to ensure thorough application testing.
- StyleCop and FxCop.
Education
Post Graduate - Artificial Intelligence and Machine Learning
UT Austin McCombs
01-2025
Master's - Computer Applications Development
Tilak Maharashtra Vidyapeeth
Mumbai01-2014
Skills
Machine Learning & AI:
Supervised Learning, Unsupervised Learning, Feature Engineering, Hyperparameter Tuning, Ensemble Learning, Gradient Boosting, Statistical Testing
Deep Learning & NLP:
Neural Networks, CNNs, NLP, Text Processing, Topic Modeling, Transformers, Embeddings, Semantic Search
Generative AI & LLMs:
Generative AI, RAG, Multimodal RAG, Hybrid Search, Vector Search, Re-ranking, Cross-Encoder, Bi-Encoder, LLM Evaluation, Multi-Agent Systems
Data & Vector Systems:
PostgreSQL, SQL Server, MongoDB, PGVector, Qdrant, Milvus
Backend & Distributed Systems:
Python, NET Core, FastAPI, REST APIs, GraphQL, Kafka, Redis, Distributed Systems
MLOps & Tools:
Docker, Kubernetes, CI/CD, Splunk, Dynatrace, PyTorch, TensorFlow, Scikit-learn, Git, Agile, Kanban
Personal Traits
- Creative spirit
- Reliable & Professional
- Meticulous
- Approachable
- Adventurous & Ambitious
Languages
English
Advanced (C1)
C1
Kannada
Advanced (C1)
C1
Hindi
Advanced (C1)
C1
Marathi
Advanced (C1)
C1
Key Achivements
- Architected a token-efficient URL abstraction layer for RAG systems, using compact placeholders during LLM inference with post-processing resolution, reducing token consumption and enabling scalable multilingual responses.
- Developed MVPs for AI Assistant solutions using NLP-driven approaches, laying the foundation for full-scale production systems.
- Recognized with Gold and Silver Awards (2019–2020) for outstanding contributions and delivery excellence.
- Awarded Employee of the Year (2013) for critical project delivery and high-impact contributions.
Certification
- Splunk Core Certified
- Azure Fundamental (AZ900)
- Azure Developer (AZ204)
Timeline
Senior Advisor Data Science
Dell
01.2021 - Current
Senior Software Engineer
Cognizant
01.2016 - 01.2021
Senior Software Programmer
L&T Infotech
01.2013 - 01.2016
Junior Software Engineer
Annet Technologies
01.2010 - 01.2013
Post Graduate - Artificial Intelligence and Machine Learning
UT Austin McCombs
Master's - Computer Applications Development
Tilak Maharashtra Vidyapeeth