Full-Time

Senior Data Scientist

Data Team

Posted on 9/11/2025

First Street

First Street

51-200 employees

Provides property-level climate risk data

Compensation Overview

$90k - $120k/yr

New York, NY, USA

Hybrid

In-office work required on Monday, Wednesday, and Thursday.

Category
Data & Analytics (1)
Required Skills
Microsoft Azure
Python
Data Science
R
Git
SQL
Postgres
AWS
Linux/Unix
Google Cloud Platform
Requirements
  • Bachelor's Degree in Data or Climate Science, or a related Field
  • 5+ year of professional experience
  • Data operations: Experience with the design, and use of databases, such as PostgreSQL
  • Programming: Proficiency with Python to efficiently and reproducibly analyze complex datasets preferred. Additional languages like SQL and R also required
  • GIS knowledge: Experience with writing software to efficiently process and analyze with geospatial data using open source tools
  • Strong understanding of probability and statistics as applied to spatial data
  • Expertise using scripted languages to build data pipelines on both local and cloud-based systems
  • Experience with big data analysis, parallel processing, and batch/spot workflows on cloud platforms including AWS, GCP, and/or Azure
  • Proficiency with source control platforms such as Git
  • A science-based approach with a high degree of concern for reliability, accuracy and reproducibility
  • Experience in GIS and/or geospatial statistical analysis
Responsibilities
  • Provide technical support in the processing, analysis, and interpretation of geospatial observations and modeling data.
  • Develop and implement processes for processing large volumes of hazard prediction data to improve risk assessment quality and accuracy.
  • Plan, execute and direct Unix-based workflows on local and cloud-based clusters, using GDAL, PostgreSQL, Python and related technologies.
  • Analyze raster and vector data at scale to improve model accuracy, identify quality control issues, and develop suggested remedies for identified issues.
  • Perform statistical analysis to validate hazard model predictions and assess model uncertainties.
  • Design and implement quality assurance checks on the climate risk data and derived statistics
  • Assist in resolution of customer support issues through quality control checks and explanation of the models and risk statistics
Desired Qualifications
  • Previous experience in the physical sciences
  • Masters Degree Preferred

First Street Foundation builds climate-risk models for properties across the United States and provides public and licensed data to help homeowners, insurers, lenders, and governments understand potential hazards. It uses peer‑reviewed methods and climate projections to estimate risks from floods, wildfires, extreme heat, wind, and other perils at the property level, producing scores and maps that explain thirty-year exposure. Its main public product, Risk Factor, gives a 1–10 risk score for individual properties and visualizes area-wide hazards; its data can be accessed for free in summary form and via paid APIs for detailed, property-level data. The foundation differentiates itself by sharing aggregated data publicly (e.g., through AWS Registry of Open Data) while selling detailed data to for-profit clients, aiming to help decision makers in resilience, real estate, insurance, and infrastructure.

Company Size

51-200

Company Stage

Series A

Total Funding

$46M

Headquarters

New York City, New York

Founded

2017

Simplify Jobs

Simplify's Take

What believers are saying

  • Zillow integrated First Street's risk data on all U.S. listings on September 26, 2024, boosting visibility to millions.
  • $46 million Series A funds global modeling expansion beyond U.S. properties.
  • Persefoni partnership on June 17, 2024, embeds data for SEC and CSRD compliance, launching Q4 2024.

What critics are saying

  • CoreLogic's ClimateQuest, launched March 12, 2025, undercuts pricing with AI models for insurers and lenders.
  • Moody's RMS Vera 2026 models, released April 15, 2026, seize insurer share with global probabilistic forecasts.
  • Google DeepMind's open-source ClimateRiskNet, February 10, 2026, rivals accuracy for free, eroding developer revenue.

What makes First Street unique

  • First Street delivers property-level climate risk scores for flood, wildfire, wind, heat, and air quality using peer-reviewed models.
  • Risk Factor Pro offers customizable, granular analysis of flood, wildfire, heat impacts, and rebuilding costs for commercial real estate.
  • Company Module links physical climate risks to corporate earnings across supply chains, unlike real estate-only competitors.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

401(k) Retirement Plan

401(k) Company Match

Paid Vacation

Paid Sick Leave

Paid Parental Leave

Hybrid Work Options

Equity

Commuter Benefits

Wellness Program

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

3%

2 year growth

15%
PR Newswire
Mar 12th, 2025
Climate Risks Threaten Trillions Of Dollars In Real Estate

Eleven major metro areas have at least $100 billion of residential real estate at major risk of fire. Six of those are in CaliforniaSEATTLE, March 12, 2025 /PRNewswire/ -- Trillions of dollars' worth of real estate is at major risk of damage from flood, fire or extreme wind, a new Zillow® analysis finds.U.S. homes with major wind risk — a risk score of 5 or higher, according to First Street data displayed on for-sale listings on Zillow — are worth at least $17 trillion in total, equivalent to more than half of the U.S. GDP. Homes with major fire risk are valued at $9.1 trillion, and homes with major flood risk are worth a cumulative $7 trillion.1

Local Breaking News
Oct 4th, 2024
Zillow adds climate risk data to home listings as threats rise

First Street just launched a suite of climate risk data for every for-sale property listed on Zillow.

Zillow Group
Sep 26th, 2024
Zillow's new climate risk score brings transparency to home shoppers

Zillow has partnered with First Street, a trusted leader in climate risk financial modeling, to deliver accurate, reliable data to home shoppers.

National Mortgage Professional
Sep 26th, 2024
Zillow, First Street Bring Climate Risk To Borrowers

A new partnership between Zillow and First Street, a climate intelligence and modeling firm, is directly addressing this challenge, shedding light on unique properties' exposure to extreme perils in order to help homebuyers assess the long-term affordability of the properties they might like to buy.

Axios
Jul 25th, 2024
Exclusive: First Street, a climate risk firm, raises $46 million in a Series A round

The company plans to expand its modeling globally and

INACTIVE