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Senior Data Scientist

Haystack NewsFort Lauderdale OfficeEngineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Posted
28 Sept 2026
Status
Open · checked 7d ago

About this role

Haystack News is seeking a Senior Data Scientist for their Fort Lauderdale office with remote flexibility to drive user engagement and retention. This position suits an experienced quantitative professional eager to enhance streaming news algorithms and shape the future of media consumption.

Role Overview

The Senior Data Scientist at Haystack News plays a crucial role in transforming user experiences by developing advanced algorithms and machine learning systems. Working within the engineering department on a full-time basis, this individual leverages causal inference, experimental design, and statistical modeling to optimize content discovery for millions of viewers.

Key Responsibilities

Design and construct machine learning and statistical models designed to elevate user engagement and content discovery.
Collaborate closely with machine learning engineers to move models and analytical insights into production environments.
Investigate complex datasets with analytical curiosity to uncover actionable business insights.
Utilize causal inference methodologies to evaluate the potential outcomes of product adjustments.
Create and implement novel machine learning features utilizing generative AI, text embeddings, and multimodal embeddings.
Confirm offline discoveries through rigorous A/B testing by planning, running, and reviewing experiments to attribute product changes accurately.

Requirements

Ph.D. or Master's degree in Computer Science, Statistics, Mathematics, Electrical Engineering, Economics, or Operations Research.
Minimum of 5 years of professional background working in data science, machine learning, or a related quantitative domain.
At least 3 years of hands-on experience building large-scale online recommender or ranking systems for domains like news feeds, e-commerce, or advertising.
Advanced knowledge of experimental design and statistical inference, including hypothesis testing, sample size computations, and variance reduction.
Demonstrated mastery of causal inference techniques for measuring product impact.
Track record of turning offline findings into concrete product choices and measurable online metric improvements.
Strong command of the Python analytics ecosystem, including NumPy and pandas, alongside machine learning libraries such as XGBoost and LightGBM.
Extensive working knowledge of SQL databases like Snowflake or Postgres.

Nice to Have

Background working on consumer-facing applications serving millions of users.
Practical experience using data transformation and orchestration tools like Airflow and dbt.
Familiarity with deep learning frameworks including TensorFlow and PyTorch.
Direct involvement developing products and tools that integrate LLMs, GenAI, RAG, and autonomous agents.

Skills and Tools

Python, pandas, NumPy
PyTorch, TensorFlow, XGBoost, LightGBM, scikit-learn, statsmodels
SQL, Snowflake, Postgres
Airflow, dbt
RAG, LLMs, GenAI, Agents

About the Company

Haystack News stands as the leading destination for streaming platform news, trusted by a global audience exceeding 30 million viewers. Recognized as one of the fastest-growing television news organizations worldwide, the company fosters an innovative and collaborative workplace environment dedicated to redefining how people consume news.

How to Apply

Interested candidates should visit the official Haystack News careers page to submit their application for this role.

Skills and tech stack

PythonPyTorchTensorFlowLLMsRAGSQLDeep LearningMachine LearningAirflow

Questions candidates ask

What is the location of the Senior Data Scientist role?

The position is based out of the Fort Lauderdale office with remote work options available.

What educational qualifications are required?

Applicants must hold a Ph.D. or Master's degree in Mathematics, Computer Science, Statistics, Electrical Engineering, Economics, or Operations Research.

How many years of experience are needed?

The role requires at least 5 years of professional experience in machine learning, data science, or a related quantitative field, including 3 years specifically focused on large-scale online ranking or recommender systems.

What technical skills are mandatory for this position?

Candidates must be fluent in the Python analytics stack, machine learning packages like LightGBM and XGBoost, statistical modeling tools, and SQL databases such as Snowflake or Postgres.

What preferred qualifications are beneficial for applicants?

Preferred qualifications include consumer product experience with millions of users, knowledge of deep learning tools like PyTorch or TensorFlow, data orchestration tools like dbt and Airflow, and exposure to GenAI, LLMs, and RAG.

Ready to apply?

The application is on the official Haystack News careers page.

Apply on company site