Freddie Mac Data Scientist Interview Questions

Practice the exact questions companies are asking right now.

8 Questions 1 Company10.13.2025
Showing 8 results
Role
Freddie Mac logo
Freddie Mac
Hard
Data Scientist

Prove SQL proficiency with concrete outcomes

SQL Proficiency Self‑Assessment and Evidence (Technical Screen) Provide a concise self‑rating and concrete, real‑world examples that demonstrate your ...

Behavioral & Leadership
8
0
65 people solved
Oct 13, 2025
Freddie Mac logo
Freddie Mac
Hard
Data Scientist

Choose estimators for panel rent regressions

Panel Rent–Vacancy Elasticity and Inference: Design, SEs, and Time-Series Diagnostics Context You have a monthly property-level panel from 2010-01 to ...

Statistics & Math
8
0
85 people solved
Oct 13, 2025
Freddie Mac logo
Freddie Mac
Hard
Data Scientist

Design a hierarchical MF delinquency forecasting system

Forecasting 90+ Day Delinquency Rates for Multifamily Loans: Hierarchical, Leakage-Safe System Design Context You need to forecast 90+ day delinquency...

Machine Learning
4
0
58 people solved
Oct 13, 2025
Freddie Mac logo
Freddie Mac
Hard
Data Scientist

Design a quasi-experiment for FHFA policy

Causal Impact of FHFA's April 15, 2024 Multifamily Underwriting Tightening Context On April 15, 2024, FHFA tightened underwriting standards for multif...

Analytics & Experimentation
5
0
49 people solved
Oct 13, 2025
Freddie Mac logo
Freddie Mac
Medium
Data Scientist

Design SQL cleaning, mapping, dedupe, and keying

Assume PostgreSQL 15. You may choose a different SQL dialect if you clearly state it and adapt syntax accordingly. Schema and small sample data: - Tab...

Data Manipulation (SQL/Python)
0
0
4 people solved
Oct 13, 2025
Freddie Mac logo
Freddie Mac
Medium
Data Scientist

Implement blocked time-series cross-validation

Implement a panel-aware blocked time-series cross-validation splitter with an embargo. Input: DataFrame columns [loan_id, msa, month]. Requirements: (...

Coding & Algorithms
8
0
58 people solved
Oct 13, 2025
Freddie Mac logo
Freddie Mac
Medium
Data Scientist

Compute leakage-safe rolling features in pandas

Using pandas on a 50M-row monthly panel with columns [loan_id, msa, month, property_type, delinquent_90dpd (0/1), upb], create features for each loan-...

Data Manipulation (SQL/Python)
0
0
4 people solved
Oct 13, 2025
Freddie Mac logo
Freddie Mac
Medium
Data Scientist

Assess SQL cleaning, mapping, joins, keys, and DDL/DML

You inherit a small retail analytics warehouse. Use the schema and sample rows below to answer all parts. Schema and sample data (minimal rows shown):...

Data Manipulation (SQL/Python)
0
0
7 people solved
Oct 13, 2025

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