> hello_world.py

I'm Kashish, and I'm

a data analyst.

I make messy data tell the truth, and I study when models quietly don't. Data analyst and research assistant. Finance, healthcare, applied AI. MS Data Science, Stony Brook.

Kashish Lalwani

photo: real. the sunset was not A/B tested.

Scrap−22%◆Returns−15%◆Defects−40%◆Margin gain12% supported◆Reporting time−35%◆Hours saved25+/mo◆Records reconciled200K+◆Harvard HackRareFinalist◆Smart India HackathonNational finalist◆

> whoami

The analyst who checks twice.

I like the part of data work most people skip: making sure the numbers are right before anyone bets a decision on them.

I've reconciled factory data from systems that couldn't agree on what to call a machine, automated reports a finance team lived in, run A/B tests at a startup, and measured how much search rankings wobble when you reword a question. AI is in my toolkit too. I just make it show its work.

My love language is a reconciled total.

profile.sql

SELECT * FROM kashish;

roledata analyst, research assistant
based_inTexas, USA
degreeMS Data Science, Stony Brook
researchrobust ML, health, finance
intofinance, healthcare, applied AI
superpowerfinding the one row that doesn't match
off_dutychess, music, markets

1 row returned · 0 errors ▍

> git log --career

The commit history.

Squash-merged for your convenience. No force-pushes were harmed.

Research Assistant

CUBIT Lab, Stony Brook University · Dr. Christine DeLorenzo, USA

Aug 2026 to Present

Health Research Data · Data Quality

  • Onboarding to the actigraphy quality-control workflow for health research data.

Research Assistant

Stony Brook University · Prof. Rahmati & Kevin Eykholt, USA

Fall 2025

Information Retrieval · Robustness · Evaluation

  • Asked whether search rankings stay put when you reword a question without changing what it means. (Spoiler: they wobble.)
  • Built a reproducible pipeline with cached results to compare Google and DuckDuckGo on the same reworded queries.
  • Defined True-PIR, a demotion-only stability score, plus bias diagnostics: Google ≈ 0.625 vs DuckDuckGo ≈ 0.586 (subset).

Founding AI Engineer

Versaunt (fka. Aayats), Inc., USA

May 2025 to Aug 2025

Product Analytics · Experimentation · Quality

  • Owned analytics, quality and monitoring at a small AI startup.
  • Ran A/B tests and cohort analysis across 50K+ daily events.
  • Built the dashboards that tracked a platform at 10K+ users and 500K+ queries.
  • Shipped a few small features. The engineering team built the core backend, credit where it's due.

Data Analyst

Saroj Group of Companies, India

Jan 2024 to Jul 2024

Finance Reporting · Forecasting · Automation

  • Ran forecasting and cost scenarios that supported a 12% margin gain.
  • Built KPI dashboards in SQL, Excel and Tableau that cut reporting time by 35%.
  • Automated four Python and SQL reporting pipelines, giving the team back 25+ hours a month.
  • Used statistical modeling on 100K+ records to help cut defect rates by 40%.

Data Analyst

Kamala Plastics, India

Jul 2023 to Dec 2023

ETL · Reconciliation · Operations Analytics

  • Got 200K+ records from systems that couldn't agree on what to call a machine into one standard.
  • Reconciled counts and totals until the reports finally matched.
  • Ran root-cause analysis that gave engineering the evidence to cut scrap by 22% and returns by 15%.

Research Assistant

Dept. of AI and ML, D.Y. Patil College of Engineering and Technology, India

Sep 2022 to May 2024

Applied AI Research · Mentorship

  • Built a CNN-based malaria detector from blood smear images (92% accuracy).
  • Built a real-time YOLOv4 object detector and an LSB image steganography method.
  • Led the research track for a Smart India Hackathon national finalist project (Ministry of Power problem statement).
  • Mentored peers as Head of R&D for the AIML Students Association.

> ls ./projects

Things I shipped.

Click one. They all come with receipts.

// Research

problem
Do search rankings stay stable when you reword a question without changing what it means?
what_i_did
Built a reproducible pipeline with cached results comparing Google and DuckDuckGo on reworded queries. Defined True-PIR, a demotion-only stability score, plus bias diagnostics.
result
True-PIR ≈ 0.625 for Google vs ≈ 0.586 for DuckDuckGo (subset). Same question, different rankings.
tools
Python, statistical testing, Google CSE, DuckDuckGo
what_i_learned
A metric only counts if someone else can rerun it and get the same number.

Written up as a Medium article, not a paper.

// Finance and business analytics

// Health data

// Applied AI and ML

> config.defaults

How I work.

validate()

Check the data first

I check the data before anyone sees a chart. Trust issues, but make it professional.

reconcile()

Make the numbers add up

Rows in should equal rows out. If they don't, nobody goes home.

document()

Write it down

I write it down so future me, and future you, don't have to guess.

explain()

Say it plainly

Decision first, jargon never. Okay, rarely.

flag_risk()

Flag risk early

If something is on fire, you hear it from me, not from the dashboard.

> import toolkit

What I work with.

Plus an unreasonable amount of oat milk.

Analytics and BI

SQLExcelTableauPower BIKPI designA/B testingCohort analysisForecastingRoot-cause analysis

Data Engineering

PythonPandasETLData pipelinesData validationPostgreSQLPySparkDatabricks

AI and ML

Predictive modelingModel evaluationXGBoostscikit-learnNLP (spaCy)Retrieval and RAG basicsLangChainFAISSMLflow

AI-Assisted Development

ClaudeClaude CodeChatGPTGeminiGitHub Copilot

> education

Stony Brook University

Master of Science in Data Science

Aug 2024 to May 2026

Shivaji University

B.Tech in Computer Science (AI and ML)

Aug 2020 to May 2024

Best Outgoing Student (sole recipient)

> achievements.unlocked

Wins, and the receipts.

// leadership_and_recognition

  • Best Outgoing StudentSole recipient · 2024
  • Harvard HackRare FinalistClinical notes pipeline · team of 3 · 2026
  • Smart India Hackathon FinalistNational, Ministry of Power · 2023
  • Student Council SecretaryThree terms, about 4,000 students
  • Best Emerging RotaractorAcross 75+ clubs · District 3170 Secretary of the Year
  • District Chess Champion2023 and 2024

// certifications

> off_dutyFinance and MarketsChessMusicIndian Classical DanceTravelCoffee

> ping kashish

Got messy data? Send it my way.

Hiring for data or analytics, working on robust ML, or just want to talk numbers? I reply faster than your nightly ETL job. Yes, even if the attachment is called final_final_v3.xlsx.