Senior Data Scientist

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New York / $180000 - $200000 annum

INFO

Salary
SALARY:

$180000 - $200000

Location

LOCATION

New York

Job Type
JOB TYPE

Permanent

Senior Data Scientist
AdTech | Fully Remote (US)
Base salary up to $200K + equity

On behalf of a high-growth AdTech startup, we are partnering with an innovative, venture-backed business that is scaling a data‑driven advertising platform operating at significant volume and complexity. The company is building core technology for real-time decisioning, optimisation, and measurement, and is now seeking a Principal Data Scientist / ML Engineer to play a key role in shaping its machine learning and data science capabilities.

This position represents a true hybrid role, split approximately 50% Machine Learning Engineering and 50% Data Science, with end‑to‑end ownership from research through to production.

The Role

The successful candidate will operate at Principal level, acting as both a hands-on technical leader and a strategic partner to Product and Engineering leadership.

Key responsibilities include:

  • Owning and leading high-impact ML and data science initiatives across the business
  • Designing and scaling production-grade ML architectures using Databricks and cloud-native tooling
  • Building, deploying, and maintaining batch and real-time ML pipelines used in customer-facing systems
  • Developing advanced statistical and machine learning models to support optimisation, ranking, forecasting, and attribution use cases
  • Establishing best practices for experimentation, feature engineering, model deployment, monitoring, and retraining
  • Driving MLOps standards across the organisation, including CI/CD for ML, model versioning, and performance monitoring
  • Translating complex business problems into robust, data-driven solutions
  • Mentoring senior and mid-level data scientists and ML engineers, while setting a high technical bar
  • Contributing to the longer-term ML and data strategy in a fast-scaling startup environment

Required Background

  • 6-10+ years of experience across Data Science and/or ML Engineering, with demonstrated impact at Staff or Principal level
  • Strong hands-on experience building and operating production ML systems at scale
  • Deep expertise with Databricks (Spark, MLflow, Delta Lake, feature pipelines)
  • Excellent foundations in statistics, machine learning, and applied mathematics
  • Experience working with large, complex, real-world datasets in high-throughput environments
  • Proven ability to balance research depth with engineering pragmatism
  • Comfortable operating in ambiguous, high-ownership startup settings

Preferred Experience

  • Background in AdTech, MarTech, marketplaces, or data-intensive SaaS platforms
  • Exposure to real-time or low-latency ML systems
  • Experience influencing ML platform or data strategy at company level
  • Familiarity with GenAI or LLM use cases within advertising or data products

Why This Opportunity

  • Join a rapidly scaling AdTech startup at a pivotal stage of growth
  • Significant influence over technical direction, architecture, and modeling approaches
  • Fully remote role (US-based)
  • Competitive compensation package: up to $200K-$210K base + bonus + equity
  • High level of ownership and visibility within the business

CONTACT

Guillian Eller

Business Manager - ML, LLM & AI

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