Sai Kumaresh

Data platforms.
AI systems.
The teams behind them.

Data engineering lead at Amazon, Ring Data Science. I build scalable data platforms and AI systems, and I hire, mentor and lead the engineers who build on them.

See the workView LinkedIn ›
60+ PB

Redshift warehouse on 80+ nodes

300+

Airflow pipelines in production

$60K

pipeline costs cut each year

2×

promoted in 14 months

Selected work.
Built and run at Amazon.

Multi-agent AI platform

Led an eight-person team to production.

Specialised agents on Amazon Bedrock AgentCore Runtime and the Strands SDK, with a coordinator for single, parallel, sequential and hierarchical execution. RAG over Bedrock Knowledge Bases, and MCP tools connecting 20+ AWS services.

  • 12+
    CDK stacks
  • 24+
    Lambda microservices
  • 854
    findings in the threat model
  • 26
    property-based security tests

Core data platform

60+ PB

An 80+ node Redshift cluster and 300+ Airflow DAGs that the data science and analytics teams rely on. SCD2 models, WLM tuning, cross-account datashares.

Lakehouse cost attribution

<16%

That's how much EMR spend the existing tags covered. I built 8 DAGs and 11 tables to tie cost to pipelines and teams, reported in Tableau.

57,000

false return-user events traced to device resets rewriting history. Fixed with an SCD2 backfill shipped through CI/CD.

5.8×

faster event loader after tracing a weeks-long pipeline cascade to six root causes.

4h → 30m

for a column addition, using a schema-change agent I built to automate data engineering work.

Context-engineering training platform

100+ engineers. Three cities. No outages.

A web app and CDK infrastructure on Amazon Bedrock, with Guardrails, CloudFront and S3. I co-presented the two-day programme it powered.

Experience.

  1. DEC 2024 – PRESENT

    Amazon

    Data Engineer, Ring Data Science · Team lead, multi-agent AI platform

    Run the core data and analytics platform. Led an 8-person team to production. 500+ code reviews written.

  2. MAR – DEC 2024

    GetSetAI

    Founder (exited)

    Three-person AI studio. AI and automation projects for D2C brands and law firms, from scoping to handover.

  3. JUL 2021 – MAR 2024

    Wipro

    Salesforce Developer

    Estée Lauder's Service Cloud application. Lightning Web Components, query tuning, about 20% efficiency gain.

  4. JAN – JUN 2021

    L&T Smart World

    Network Automation Intern

    Zero-touch provisioning and a topology mapper that finds the root cause when a link fails.

  5. JUN 2020 – MAY 2021

    BeyondX

    Python Developer and Team Lead

    Led a 15-member team as scrum master. Built an encrypted image steganography tool.

Credentials.

SEP 2024 – AUG 2026

M.S., Artificial Intelligence & Computer Science

Woolf University, via Scaler Neovarsity

98% · 4.0 GPA

Completed alongside full-time work at Amazon.

2017 – 2021

B.Tech, Electronics & Communication

Vellore Institute of Technology

8.18 CGPA

6th place, Chennai Hacks.

Get in touch.

Based in Chennai, India.

Email meLinkedInGitHub