Mohan Ranganath — Data Engineer
Mohan Ranganath Varma Vummadisetty. Snowflake-focused data engineer at PROLIM, a Snowflake Elite Partner — seven client engagements across migrations, performance engineering, orchestration and life-sciences analytics. I've converted four source platforms to Snowflake SQL: SAP ABAP, T-SQL, MySQL and PostgreSQL. Outside work I build things because I want them to exist — desktop apps, automation, AI experiments, and this world you're standing in.
Skills: Snowflake, SQL, Python, PySpark, ETL / ELT, Data Warehousing, Dimensional Modeling, Query Optimization, Dynamic Tables, Task Graphs, Streams & Tasks, Iceberg Tables, Streamlit, FastAPI, Data Sharing, Life Sciences Analytics, Patient Journey Modeling, Retail / POS Analytics, Marketing Analytics, Clinical Trial Data.
Professional work
Data Engineer at PROLIM (formerly Kasmo Digital) (Dec 2024 — Present)
A Snowflake Elite Partner with 200+ consultants. Joined as Kasmo Digital in Dec 2024; PROLIM acquired and rebranded it a year later. Seven client engagements across life sciences, retail POS, marketing analytics, decentralised storage, home interiors and field services — five of them US accounts, each with direct one-to-one client contact from kickoff through go-live.
HomeLane — Home Interior & Design. First Snowflake work: MySQL queries and procedures, converted and validated. Converted workloads validated against source behaviour. This was the introduction to Snowflake that everything since is built on.
Akave.ai — Performance Engineering POC. 1 TB to Iceberg — under 45 minutes and under $4. Processed 1 TB to Iceberg inside both limits, and drove the write failure to resolution with Snowflake support and vendor engineering. Proof that performance engineering is a feature, not an afterthought.
Certus Pest — Enterprise Database Migration. Over 1 TB migrated, and a 7-hour batch window cut to 2. The batch window fell from 7–8 hours to roughly 2, with dependency-aware orchestration replacing clock-time scheduling. Automation moved the data; the procedural logic was translated by hand.
SuperSonic POS — Retail / Point of Sale. 35 reporting queries: 13 minutes down to under one. Runtimes fell from over 13 minutes to under a minute — several of them sub-second — with the warehouse size held at S. Same data, a fraction of the wait and none of the extra spend.
Delcath Systems — Life Sciences Analytics (NASDAQ: DCTH). Sole data engineer on a life-sciences enterprise data warehouse. (Current) Ongoing: two orchestrated task graphs run the weekly pipeline with alerting and run_id-scoped idempotent recovery, around 20 Streamlit apps serve internal users, and Delta Sharing brings Databricks data in.
Sattva & Blue Wheel — SAP ABAP & Marketing Data. Pulled onto two slipping engagements while already sole DE on another. Together with the other engagements these complete a four-source-platform conversion record — SAP ABAP, T-SQL, MySQL and PostgreSQL to Snowflake SQL. Almost no Snowflake engineers carry the SAP side of that.
Personal builds
Quarry — Web Data Acquisition / Snowflake Native App. It discovers the schema before it harvests anything.
Watch Party — Real-time Web App. Watch together, webcams in sync.
Automation Utilities — Developer Tooling. If I do it twice, I script it.
Raphael — Local-First AI Assistant. An AI assistant that lives inside my Linux desktop.
This Portfolio — Interactive 3D Web. The world you're standing in right now.
AI Playground — AI / LLM Engineering. Not just using AI — taking it apart.
Linux
Linux is probably my favorite hobby. I enjoy customizing every layer of my environment until it feels personal, efficient, and genuinely fun to use.
Contact
Whether it's a data platform that needs building, a pipeline that needs to be faster, or just an interesting problem — I'd like to hear about it.
mohanvarma130@gmail.com · GitHub · LinkedIn · Resume (PDF) · Text version of this portfolio
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Mohan Ranganath — Data Engineer
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