Hareesh Kumar
Chennai
Summary
Dynamic data science consultant at Tata Consultancy Services with proven expertise in managing both AI-driven data science initiatives—including demand forecasting and generative AI—and large-scale Big Data processing pipelines using Azure Databricks. Skilled in developing robust, end-to-end data pipelines and predictive models that enhance operational efficiency and drive actionable business insights. Adept at collaborating with cross-functional teams to deliver scalable solutions that improve decision-making and maximize business value.
Overview
17
17
years of professional experience
1
1
Certification
Work History
Consultant | Solution Architect
Tata Consultancy Services
Chennai
11.2023 - Current
- Contributed to innovative data science solutions for a leading US pharmacy retailer, enhancing demand forecasting, price recommendations, and inventory management.
- Scaled and automated data pipelines and model deployments using Azure Databricks and PySpark, reducing operational overhead and accelerating insights delivery.
- Designed an AI-powered assistant employing Retrieval-Augmented Generation (RAG) to improve user query accuracy and reduce support workload.
- Spearheaded adoption of Backstage developer platform, improving documentation, onboarding, and enabling engineering teams to deliver business value efficiently.
Associate Consultant | Solution Architect
Tata Consultancy Services
Chennai
01.2019 - 11.2023
- Modernized mainframe systems by building REST APIs with Java Spring Boot and implementing CI/CD pipelines (GitHub, Jenkins) to streamline deployments.
- Engineered real-time data pipelines with Apache Kafka and transitioned analytics to Python, improving data integration, responsiveness, and processing efficiency.
- Developed predictive models and data-driven applications, strengthening business intelligence and decision-making capabilities.
- Architected scalable big data solutions (Hadoop, HBase, Spark) and led Optumera platform rollout to optimize inventory management and assortment planning.
Assistant Consultant | Technical Architect
Tata Consultancy Services
Minneapolis
07.2015 - 12.2018
- Led migration of 13 enterprise J2EE applications from IBM WebSphere to Apache Tomcat, driving end-to-end planning, compatibility analysis, and cutover with minimal business disruption.
- Optimized deployments and database connectivity, resolving platform-specific dependencies and achieving equal or improved application performance post-migration.
- Enabled mainframe automation via JZOS, integrating Java with z/OS systems and delivering a Java Swing UI that simplified critical mainframe task execution for non-experts.
- Specialized in application modernization and legacy platform transformation, bridging classic enterprise systems with modern, scalable technologies.
IT Analyst | Module Lead
Tata Consultancy Services
Greater Minneapolis-St. Paul Area
07.2012 - 06.2015
- Led seamless transition from development to production support for the Multi Channel Inventory Model program, ensuring operational stability and effective inventory control.
- Served as primary liaison between technical and support teams, driving clear communication and proactive issue resolution.
- Conducted impact analyses and coordinated with stakeholders to address dependencies and mitigate transition risks.
- Delivered new technology initiatives with measurable business value, minimizing service disruption across inventory systems.
Systems Engineer | Application Owner
Tata Consultancy Services
Chennai Area
07.2010 - 06.2012
- Ensured reliability of mission-critical production systems in a high-availability environment, aligning application health with business goals.
- Served as primary escalation point for production issues, driving rapid root cause analysis and resolution.
- Led continuous monitoring and automation initiatives, reducing system downtime and proactively mitigating risks through real-time analytics.
- Consistently met Level of Service agreements, enhancing user experience and strengthening application reliability.
Assistant System Engineer | Support Engineer
Tata Consultancy Services
06.2008 - 06.2010
- Provided 24x7 on-call support, swiftly resolving production issues to minimize system downtime and maintain business continuity.
- Led incident reduction initiatives by analyzing root causes and implementing preventive solutions to improve system reliability.
- Developed and executed automation scripts, streamlining repetitive tasks and boosting team productivity.
- Collaborated across teams to enhance technical operations and ensure seamless operation of critical retail business systems.
Education
Bachelor of Engineering (B.E.) - Computer Science & Engineering
Government College of Technology
Coimbatore01.2008
Skills
- Data pipeline development
- Demand forecasting
- Machine learning
- Generative AI
- Predictive modeling
- Azure Databricks
- Python programming
- Time series analysis
- Supervised learning
- Unsupervised learning
- PySpark
Certification
- SCRUM MASTER ACCREDITED CERTIFICATION
- Functional Programming Principles in Scala
- Functional Program Design in Scala
- The Arduino Platform and C Programming
- Oracle Certified Professional, Java SE 6 Programmer
Timeline
Consultant | Solution Architect
Tata Consultancy Services
11.2023 - Current
Associate Consultant | Solution Architect
Tata Consultancy Services
01.2019 - 11.2023
Assistant Consultant | Technical Architect
Tata Consultancy Services
07.2015 - 12.2018
IT Analyst | Module Lead
Tata Consultancy Services
07.2012 - 06.2015
Systems Engineer | Application Owner
Tata Consultancy Services
07.2010 - 06.2012
Assistant System Engineer | Support Engineer
Tata Consultancy Services
06.2008 - 06.2010
Bachelor of Engineering (B.E.) - Computer Science & Engineering
Government College of Technology
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