About the role

Headquarters: Remote
URL: https://www.toptal.com/

Job Description

We are seeking a Marketing Data Scientist to support and enhance internally built marketing ROI and analytics platform. This role focuses on analyzing marketing effectiveness, optimizing ad spend, and building scalable data science solutions using Python and statistical modeling techniques. The ideal candidate will have experience working with time series data, marketing analytics, and modern Python data science libraries, along with strong software engineering fundamentals.

Tasks & Responsibilities

Develop and maintain marketing ROI and analytics models

Analyze marketing and sales data to measure channel performance and advertising effectiveness

Partner with business stakeholders to address questions, review model outputs, and identify key business drivers behind marketing performance results

Work with Bayesian and linear models to evaluate marketing contribution and ROI

Support and improve Streamlit-based applications used for reporting and visualization

Build scalable Python-based data workflows and analytical tools

Export and manage reporting outputs using Excel and related formats

Collaborate with engineering and cross-functional teams to improve code quality and maintainability

Work within AWS environments including S3 and EC2

Monitor applications and workflows using DataDog

Engagement highlights:

Immediate contribution to a live ML application with clear ownership

Deep collaboration with domain experts and applied data teams

Opportunities to apply and grow expertise in both model development and deployment workflows

Overlap till 3pm CST needed

Requirements

Required Skills

Strong Python programming experience

Experience with:

Pandas

NumPy

PyTest

Streamlit

Experience working with time series data

Understanding of statistical modeling techniques including Bayesian and linear models

Knowledge of software engineering best practices

Experience with AWS services such as S3 and EC2

Nice to Have

Experience with Marketing Mix Modeling (MMM)

Experience in marketing analytics or ad-tech environments

Familiarity with ROI optimization and attribution modeling

Exposure to DataDog or similar monitoring tools

Spanish proficiency is a plus

To apply: https://weworkremotely.com/remote-jobs/toptal-marketing-data-scientist

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Role

Technology & IT Data Analysis Excel Python Remote Collaboration Sales remote

Likely questions

Tell us about work you have done that is close to the Marketing Data Scientist role.
How would you approach your first 30 days at Toptal?
Which of Data Analysis, Excel and Python have you used recently, and what did it help you achieve?
Describe a time you solved a problem without waiting to be told exactly what to do.
How do you stay organised and communicate clearly when working remotely?

Prepare before the call

A recent example that proves your experience with Data Analysis, Excel and Python.
One short story with a problem, your action, and the result.
Two examples that show the strengths listed on your CV.
A clear reason why this role and company interest you.
Your availability, preferred work style, and salary expectations.

Ask them

What would success look like in the first 90 days?
What are the main problems this hire should help solve?
How does the team give feedback and measure good work?
What does a normal working week look like for this role?

Practice line

I am interested in the Marketing Data Scientist role because I can bring practical experience in Data Analysis, Excel and Python, learn the team quickly, and contribute to the outcomes Toptal needs from this hire.

Marketing Data Scientist

About the role

Walk in with sharper answers.

Likely questions

Prepare before the call

Ask them

Related jobs.