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Ayan Putatunda

About

Ayan’s work centers on making data usable by the systems that need it. It started with retail point-of-sale integration at Cognizant, in Kolkata, Buenos Aires, and San Francisco. It moved through a supply-chain AI product at Noodle.ai, where the pipeline grew from GBs to TBs and the team from two engineers to eight. At Achieve, half a million customer profiles were unified into one governed lake on Google Cloud.

At Zendesk he leads AI-readiness work for the Zendesk Data Platform, a petabyte-scale Snowflake environment. The central question: what does a data platform need to look like before an AI agent can be trusted with it? The working answers are governed context, semantic layers exposed over MCP, and agentic workflows that keep a human at the review gate.

Outside work he builds personal projects end to end at Axiomic AI, his experimental, non-revenue playground for new technology. He also teaches on Built from Bits and The Practitioners Pod and mentors engineers making the move from pipelines to agents. He is a senior member of IEEE, a technical reviewer for Packt, and has spoken at IEEE AIC, Snowflake World Tour, dbt Summit, and the Applied AI Summit.

Ayan Putatunda

Career

  1. Nov 2024 – present
    Staff Data Engineer
    Zendesk, San Francisco
    • Leads AI-readiness work for the Zendesk Data Platform: Snowflake Cortex semantic layers and skills-driven agentic data engineering.
    • Architected petabyte-scale infrastructure with Fivetran, Airflow, and dbt; 40% better delivery efficiency at 99.9% uptime across 5+ engineering teams.
    • Established engineering best practices; mentors engineers on multi-system, long-term projects.
  2. May 2022 – Nov 2024
    Staff Data Engineer
    Achieve (formerly Freedom Financial Network), San Mateo
    • Led the FDR Sales Data Transformation on Google Cloud: 500K+ unified customer profiles in a BigQuery data lake.
    • Batch and streaming ETL frameworks reduced data inconsistencies by 60%.
  3. Sep 2019 – Apr 2022
    Engineering Manager, Principal Data Engineer, Senior Data Engineer
    Noodle.ai, Palo Alto and San Francisco
    • Architected the pipeline for a first-in-class supply chain AI platform; TB-scale, 99.9% uptime.
    • Built and scaled the data engineering team from 2 to 8 with 100% retention.
    • Configurable models and a reusable Airflow framework: implementation time down 50%, development up 60%.
  4. Oct 2010 – Sep 2019
    Team Lead, Associate Projects, Senior Developer, Programmer Analyst
    Cognizant, Kolkata / Buenos Aires / San Francisco
    • Multi-channel retail POS data integration (RAYMARK, MSBI, SQL Server) for global retail clients; 99.5% data accuracy with fault-tolerant ETL.
    • Automated reconciliation processes eliminated manual validation and reduced errors by 85%.

Education

  • Master of Computer Science in Data Science
    University of Illinois Urbana-Champaign
  • B.Tech in Computer Science and Engineering
    West Bengal Institute of Technology

Affiliations

Each links to its certificate.

  • IEEE
    Senior Member. In good standing through December 2026.
  • IEEE Computer Society
    Senior Member.
  • IEEE Technology and Engineering Management Society
    Senior Member.
  • IEEE Young Professionals
    Senior Member.

Stack

Agentic AI
  • Anthropic Claude API
  • Claude Code
  • Claude Agent SDK
  • MCP
  • LangGraph
  • Multi-agent systems
  • RAG and vector search
  • LLM evaluation
Data platform
  • Snowflake
  • Snowflake Cortex
  • dbt
  • Airflow
  • Fivetran
  • BigQuery
  • Spark
  • Kimball modelling
  • Semantic layers
Languages and cloud
  • Python
  • SQL
  • Docker
  • GitHub Actions
  • GCP
  • Snowflake Data Cloud
Leadership
  • Technical mentoring
  • Team building
  • Stakeholder management
  • Engineering best practices