---
title: "Vulasala Hari Krishna - Data Engineer II in Bengaluru | Tal"
description: "Meet Vulasala Hari Krishna, Data Engineer | PySpark • AWS Glue • Redshift • Aurora | 3+ Yrs @ Deloitte USI | 1B+ Records Processed | AWS Certified Developer | PyPI Open-Source Contributor | Claude Certified Architect based in Bengaluru. AI stack includes anthropic apis, claude code, and github copi..."
image: "https://tal.club/meet/vulasala-hari-krishna/share-image"
---

# Vulasala Hari Krishna on Tal

## Headline

Data Engineer \| PySpark • AWS Glue • Redshift • Aurora \| 3\+ Yrs @ Deloitte USI \| 1B\+ Records Processed \| AWS Certified Developer \| PyPI Open\-Source Contributor \| Claude Certified Architect

## About

Data Engineer with 3\+ years at Deloitte USI, building large\-scale data pipelines and cloud\-native data platforms for a leading global investment management firm\. What I do: I design, build, and optimize production\-grade ETL/ELT pipelines on AWS using PySpark, AWS Glue, Redshift, Aurora PostgreSQL, Lambda, and Step Functions\. My work sits at the intersection of financial data engineering, cloud architecture, and data quality — processing 1B\+ records for critical financial workflows\. Key highlights: \- Implemented 25\+ PySpark batch jobs on AWS Glue, processing 1B\+ records to support a phased legacy COBOL\-to\-cloud migration \- Reduced average runtime of 5 production AWS Glue jobs by 62\.5% \(40 mins to 15 mins\) by diagnosing bottlenecks via Spark UI and restructuring job logic and execution configuration \- Resolved Aurora production degradation via CDC replication \(AWS DMS\) to Redshift — enabled self\-serve analytics for 8\+ teams \- Improved Redshift query performance by 40% through sort/distribution key tuning based on query access patterns \- Built a PySpark validation framework automating 250\+ hours/month of manual QA for legacy\-to\-cloud data reconciliation \- Implemented a multi\-region pipeline \(EHC\-based failover\) sustaining 99\.9% uptime for critical batch workloads \- Published open\-source Python library on PyPI — databridge\-validator — for data migration validation with PII masking \(500\+ downloads\) \- Built a real\-time stock market analytics platform — Kafka, Spark Streaming, Delta Lake medallion lakehouse, Airflow, Docker Tech I work with daily: Python • PySpark • Spark SQL • SQL • AWS Glue • S3 • Redshift • Aurora PostgreSQL • Lambda • Step Functions • DMS • Athena • EMR • Lake Formation • IAM • KMS • Kafka • Airflow • Delta Lake • Databricks • Snowflake • Docker • Splunk • Git AI & LLM: I use Claude Code daily for AI\-augmented development, along with the Claude API, Model Context Protocol \(MCP\), and agentic workflows to accelerate engineering productivity and code quality\. Certifications: AWS Certified Developer \- Associate, Claude Certified Architect \- Foundations 📧 vulasalaharikrishna@gmail\.com 🔗 github\.com/Vulasala\-Hari\-Krishna

## Location

Bengaluru

## AI stack

anthropic apis

claude code

github copilot

claudecode

## Work experience

Data Engineer II at Deloitte, Jun 2026 \- Present · 4 mos, Bengaluru · Hybrid

Data Engineer I at Deloitte, Oct 2024 \- May 2026 · 1 yr 8 mos, Bengaluru · Hybrid

Analyst Trainee at Deloitte, Oct 2023 \- Sep 2024 · 1 yr, Bengaluru · Hybrid

## Education

Bachelor of Technology \- BTech, Electronic and Communications Engineering, Rajiv Gandhi University of Knowledge Technologies, RKValley \(RAC\)

## Public links

- github: https://github\.com/Vulasala\-Hari\-Krishna

[View the original profile](https://tal.club/meet/vulasala-hari-krishna)

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