Abhishek Singh
Bengaluru
Summary
Senior AI Scientist specializing in Agentic AI, LLM orchestration, and workflow automation at C5i. Expert in building scalable AI systems using LangChain, LangGraph, ADK and CrewAI, with deep experience in fine-tuning LLMs for tasks like Text-to-SQL and NER. Proven track record of deploying production-grade microservices with FastAPI and Docker across cloud platforms. Strong cross-functional leader and technical mentor, delivering innovative AI solutions that drive operational efficiency and business value.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Senior AI Scientist
C5i
Bangalore
01.2024 - Current
- Designed and developed an advanced Agentic Workflow Builder ("AgentHub") to automatecomplex tasks through LLM-powered toolchains with dynamic logic, contextual memory, and multi-level agent execution using LangGraph, CrewAI, and MCP tools — reduced manual task handling time by 80%.
- Built and deployed robust Agentic AI architectures using frameworks such as LangChain, LangGraph, CrewAI, Google ADK, and custom OpenAI pipelines.
- Built Deep research Agents, Multi agent systems using langgraph.
- Architected scalable FastAPI microservices and containerized AI systems with Docker, enabling production-grade deployments across internal platforms with persistent volume support.
- Developed an end-to-end Text-to-SQL platform ("Discovery") integrating fine-tuned LLMs, multi-turn memory, and custom SQL guards to enable natural language querying across Postgres and Azure SQL; included hybrid RAG fallback for ambiguous queries.
- Fine-tuned LLMs for targeted downstream tasks such as Text-to-SQL generation, NER, and Intent Classification across enterprise domains.
- Led development of a modular RAG evaluation framework, benchmarking vector DBs like FAISS, Chroma, and Azure AI Search using recall, latency, and hallucination metrics to optimize pipeline performance.
- Created a custom AI Search SDK to interface with Azure AI Search in hybrid retrieval mode, supporting semantic ranking, filters, and LLM-based summarization.
- Leveraged multiple LLM providers including Azure OpenAI, OpenAI, Anthropic Claude, Google Gemini, and AWS Bedrock to enable multi-provider agent interoperability and fallback.
Data Scientist
Infosys
03.2021 - 01.2024
- Leading a team of experienced Data scientists, solving complex business problems using Artificial intelligence and Machine learning.
- Designed, Implemented and Productionized several Machine learning models such as Regression models, Forecasting models, Recommendation Systems, Chatbots, Classification models and so on.
- Developing Large Language model powered applications using Azure Open AI, Transformers and Open Source LLMs for various use cases such as Document summarization, Question and Answering application for custom data, Code generation, Text generation et cetera.
- Created applications using LLMs for various use cases, Chat bot for Question answering on Own Knowledge Base using RAG, application for PDF summarization, Converting Natural language to SQL for retrieving results from databases, Data analysis and visualization on CSV/Excel data.
- Initiated and implemented a number of POCs on upcoming technology and algorithms in Computer vision, NLP, Generative AI, and deep learning models.
- Contributed content and documentation for RFPs, BRDs and also Solution design documents.
- Experience in dealing with client meetings, understanding requirements and putting them into deliverables.
- Excellent communication and Presentation skills.
- Awarded Tech domain Maestro for Research, Development and Implementation on latest tech.
Data Steward
Eli Lilly and Company
07.2020 - 02.2021
- Part of the Data governance team, responsible for maintaining the quality of data.
- Manage business priorities while driving process improvements and data quality enhancements.
Business Intelligence Analyst
Milvik Bima
02.2018 - 05.2020
- Developing Key performance indicators which helped the Management keep track of the company's performance in various markets.
- Implemented RFM segmentation identified profitable customers to increase the revenue of the company.
- Implemented K-Means clustering to divide high performing agents which was used by country managers to reward hard working agents, time series forecasting to forecast the revenue which was useful to the financial team.
- Setting up daily, monthly reporting, and various ad-hoc requests.
Business Intelligence Developer
Capgemini
07.2015 - 02.2018
- Designed and implemented database to bring the recruitment data in-house.
- Automated a number of ETL pipelines.
- Created a reporting system and thus enabled the efficiency of the HR team.
- Built a dashboard to track the progress of ongoing projects for the Management.
Education
Post Graduate Diploma - Data Science
IIITB
01.2020
Bachelor of Engineering - Computer Science
Atria Institute of Technology
Bengaluru01.2015
Skills
Agentic & Generative AI Systems
- Agentic AI Workflow Automation LangChain LangGraph CrewAI
- Prompt Engineering Multi-agent Orchestration Tool-augmented LLMs
Large Language Models & NLP
- Large Language Models (LLMs): Azure OpenAI, OpenAI, Anthropic Claude, Google Gemini, AWS Bedrock
- Model Fine-Tuning: Text-to-SQL, Named Entity Recognition (NER), Intent Classification
- Retrieval-Augmented Generation (RAG) Vector Databases Embedding Models Transformers
- NLP Pipelines Conversational AI & LLM-based Chatbots
AI/ML Development & Deployment
- Machine Learning Deep Learning Statistical Modeling Data Analysis
- Python (Advanced) SQL (Advanced) Model Optimization
- FastAPI Microservices Architecture API Development
- Containerization: Docker Deployment Automation
Cloud & DevOps
- Cloud Platforms: AWS Azure GCP
- Git GitHub CI/CD (Basic) Version Control Best Practices
Leadership & Collaboration
- Cross-functional Team Collaboration Technical Mentorship Agile Environments
Certification
- Microsoft certified: Azure AI Engineer Associate, 65516345362D350C
- DS C15 Diploma Certificate - upGrad, 27741831
Timeline
Senior AI Scientist
C5i
01.2024 - Current
Data Scientist
Infosys
03.2021 - 01.2024
Data Steward
Eli Lilly and Company
07.2020 - 02.2021
Business Intelligence Analyst
Milvik Bima
02.2018 - 05.2020
Business Intelligence Developer
Capgemini
07.2015 - 02.2018
Post Graduate Diploma - Data Science
IIITB
Bachelor of Engineering - Computer Science
Atria Institute of Technology
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