Haashir AhmedPortfolio / 2026

Growth, data & product

Columbia University · New York

Build useful products.
Help them grow.

I'm Haashir. I lead growth, customer acquisition, and retention at DentalShield while studying at Columbia. My work brings together customer analytics, sales, and a curiosity about what makes people choose a product—and keep using it.

What I'm working on

Currently building · DentalShield

Head of Growth

Help practices fill shifts.
Give them a reason to return.

DentalShield connects dental practices with temporary dental professionals and supports practice operations. I own growth, customer acquisition, and retention, with an initial focus on helping practices book their first shift and return for future coverage.

Visit DentalShieldConnect with me

Customer acquisition

Find practices with staffing needs, understand their workflows, and turn conversations into first bookings.

Activation & retention

Help practices get value from their first experience, understand repeat use, and bring customer feedback into product decisions.

Growth analytics

Measure the path from inquiry to completed shift to repeat booking, so the team can see what works and where to improve.

Next milestone

Preparing our Winter 2027 Y Combinator application.

Selected projects

03 projects · 2026
Sunlit falafel grain bowl with avocado, cabbage, herbs, and tahini on a green surface
COMMON GROUNDIndependent concept
A dinner plan that fits the group.
Within budgetVegetarian choicesUnder 35 minutes

Common Ground

Helping a group agree on dinner: an independent concept for an AI-powered group-ordering experience on DoorDash.

Consumer experienceAI-assisted conceptInteractive prototype

Agency Launchpad

Making agency setup feel manageable: a guided onboarding concept for TikTok Business Center.

Business toolsWorkflow designInteractive prototype

LANGUAGE → SENTIMENT → EVIDENCE

Can the headline
see what’s next?1,417 headlines · Two sentiment models · 30-day returns
Real-data scatterplot comparing VADER sentiment with subsequent Agilent returns across 31 held-out windows

Market Sentiment Analysis with NLP

Testing whether financial headline sentiment adds predictive value: VADER, TextBlob, and an honest look at the results.

Python & NLPHistorical dataInteractive analysis

A little about me

Understand the customer.
Earn the next conversation.

At Rocket Mortgage, I advised over 100 clients and closed more than $23 million in residential loans. At Wells Fargo, I analyzed checking-account attrition across a portfolio of approximately 30 million accounts. At NeuralLens, I supported enterprise customer discovery and account management.

Those experiences shape my work at DentalShield: understand the problem, help a customer get value, and use data to learn why they stay. I also build independent product prototypes and data projects with AI assistance to test ideas and make them tangible.

I'm based in New York and study Data Science & Economics at Columbia, where I serve on the Data Science Society's executive board.

DentalShield

Current

Head of Growth
Customer acquisition · Activation · Retention

Wells Fargo

Summer 2026

Consumer Banking & Lending Summer Analyst
Deposits Analytics · Customer behavior & retention

NeuralLens.AI

2025

Account Management Intern
Enterprise customer discovery · Software sales

Rocket Mortgage

2021–2023

Senior Banker
$23M+ residential loan volume · 100+ clients advised

Columbia University

Expected Dec 2027

B.A. in Data Science & Economics
Columbia Data Science Society · Executive Board Member