Sanjeev Kumar Singh
Data Engineer
Electronic City,KA
Summary
Results-driven Data Engineer with 7.5+ years of experience in optimizing queries, modeling data, and enhancing SQL performance across diverse industries. Seeking a challenging onsite or global role to apply expertise in cloud technologies, automation, and AI to drive data-led innovation and impactful business outcomes.
Overview
8
8
years of professional experience
Work History
DEPUTY MANAGER
TITAN COMPANY LIMITED
09.2023 - Current
- Led the end-to-end design, development, and deployment of an AI-Powered Data Mart integrated with OpenAI GPT models and a Streamlit UI, enabling NLP based analytics and automating 80% of manual reports creation
- Leveraged prompt engineering techniques to guide AI assisted SQL refactoring using CTEs, windows functions, and query restructuring to reduce execution time 70% & improve overall system efficiency by 30%
- Designed & delivered IBD CRM analytics, integrating AI-supported insights to guide international expansion strategies and improve decision-making across global retail stores
- Modernized legacy SQL Server workloads by migrating them to AWS Redshift & applying prompt-engineered AI optimizations, resulting in faster data processing speed and reducing query latency
- Re-architected 15+ retail data processes using AI-guided logic improvements & modern data engineering frameworks to enhance data quality, efficiency, and reporting accuracy
- Domain: Retail
- Recognized for excellence in the Watches & IBD Division for outstanding performance and impact
ASSOCIATE PROJECTS (DEVELOPER- AI & ANALYTICS)
COGNIZANT TECHNOLOGY SOLUTIONS
09.2021 - 09.2023
- Collaborated with 20+ stakeholders to refine business and technical requirements, ensuring alignment with strategic goals and project feasibility
- Designed and implemented 5+ scalable data solutions, driving a 30% boost in operational efficiency and system performance
- Resolved 95% of critical data issues, improving data accuracy and enabling real-time, insight-driven decision-making
- Optimized SQL across 4+ databases, reducing reporting latency by 50% and translating complex business logic into efficient queries
- Mentored new hires and led 10+ interviews, strengthening the team's technical capabilities and fostering a culture of knowledge sharing
- Domain: Telecom
- Praised by business for fixing logic errors and revamping architecture, improving accuracy and scalability
SYSTEMS ENGINEER (DEVELOPER)
TATA CONSULTANCY SERVICES
04.2018 - 09.2021
- Developed and optimized 25+ PL/SQL packages, streamlining business processes and improving query performance by 30%.
- Executed smooth ERP system migrations for 3+ large-scale projects using HPPPM, ensuring 100% data integrity and minimal downtime.
- Automated data workflows by designing 5+ shell scripts with CRON jobs for extraction, email alerts, and scheduling, reducing manual effort by 35%.
- Collaborated with stakeholders on critical requirements, delivering key enhancements on time and maintaining system stability.
- Ensured seamless quarter-end GL closures, providing robust post-implementation support and continuous process improvements.
- Domain: Finance
- Received Gold, Amber, and Service & Commitment Awards for dedication, excellence, and consistent value delivery over 3 years
Education
B. Tech - CSE
Dr. A.P.J. Abdul Kalam University
01.2017
Class XII - CBSE
St. Thomas School
01.2013
Class X - CBSE
St. Thomas School
01.2011
Skills
- Project Execution
- Stakeholder Management
- Agile & Project Management
- Data-Driven Insights
- Process Improvement
- Change Management
- Team Mentoring
- Data Governance & Compliance
- Data Strategy
- AI & Workflow Automation
- Cross-Functional Collaboration
- Data Modelling
- Data Acquisition
- Integration
- Modeling
- Validation
- ETL/ELT
- Data Analytics
- Visualization
- Agile
- SDLC
- DevOps
Live Projects
- AI-Powered Data App Development: Built a Streamlit-based AI-powered data automation app that significantly enhanced insights and analytics for business teams, enabling real-time data-driven decision-making.
- AI-Driven Data Automation & SQL Optimization: Implemented AI-powered data mart workflows, reducing manual effort by 80%. Collaborated with cross-functional teams to improve SQL query execution by 70%, cutting system inefficiencies by 30%.
- Retail Analytics & CRM for Global Expansion: Developed IBD CRM analytics for brick-and-mortar retail stores, supporting international expansion. Led creation of KPI dashboards for tracking New Repeat Buyers, Dormant/Wonback segments, and special campaign triggers (e.g., Birthday/Anniversary).
- Legacy System Re-architecture & Migration: Re-engineered 15+ legacy retail data processes for higher efficiency. Migrated SQL Server codebases to AWS Redshift, improving processing speeds and scalability.
- Telecom & Airline Industry Projects: Ensured telecom customer segmentation accuracy by resolving critical data issues. Fixed historical data inconsistencies and reduced incidents by 95% in a mission-critical airline application.
Skills And Technologies
Project Execution, Stakeholder Management, Agile & Project Management, Data-Driven Insights, Process Improvement, Change Management, Team Mentoring, Data Governance & Compliance, Data Strategy, AI & Workflow Automation, Cross-Functional Collaboration, Data Modelling, Data Acquisition, Integration, Modeling, Validation, ETL/ELT, Data Analytics, Visualization, Agile, SDLC, DevOps
Hands On Experience
- PySpark
- Tableau
- Power BI
- Databricks
- Confluent
- Kafka
- VSCode
- Jupyter Notebook
Timeline
DEPUTY MANAGER
TITAN COMPANY LIMITED
09.2023 - Current
ASSOCIATE PROJECTS (DEVELOPER- AI & ANALYTICS)
COGNIZANT TECHNOLOGY SOLUTIONS
09.2021 - 09.2023
SYSTEMS ENGINEER (DEVELOPER)
TATA CONSULTANCY SERVICES
04.2018 - 09.2021
B. Tech - CSE
Dr. A.P.J. Abdul Kalam University
Class XII - CBSE
St. Thomas School
Class X - CBSE
St. Thomas School