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Senior Forecasting Data Scientist

Helishores IncUnited States🇺🇸United StatesPosted 13 Aug 2026

Quick Overview

Work Type
Remote
Level
Mid Senior

Job Description

Role: Senior Forecasting Lead Data Scientist

Location: Remote

Visa: NO GC

Experience: 10+ years

The candidate must be able to name the industry and the outcome variable for each such engagement. Retail same-store analysis is the classic form; the analogue here is comparing similar schools and events rather than following one trend line.

* Presents to non-statisticians: business outcome first, method second; confidence stated in plain language; explicitly states what the forecast cannot do; never opens with an undefined statistical term.

* Can teach the method to a client team, not only execute it.

* Participate actively in stand-ups and backlog refinement, engage business stakeholders directly, understand why the business is asking a question, and challenge or refine the request when it is wrong.

* Strategic recommendations are expected alongside hands-on delivery.

Qualifications

Required:

* Must be able to work EST hours

* 8+ years of applied forecasting.

* Two or more comparable forecasting engagements led start to finish.

* Comparable-unit / same-store forecasting experience. 

* Executive communication.

* Thought leadership.

* Multivariable regression, plus collinearity analysis and VIF interpretation.

* Forecast model development, tuning, selection and holdout validation.

* Metric fluency: R², WAPE, MAPE, p-values — and why WAPE is used at event grain (many events sell zero, which breaks MAPE).

* Sparse and zero-inflated data. Many variables populate on under 25% of events, some as low as 10%. Nulls must never be silently treated as zeros.

* Data-leakage discipline and point-in-time correctness: every feature must exist before the event starts.

* Python and SQL; reproducible notebooks.

* Snowflake, including Snowflake ML Model Registry (model versions carry metrics and training-dataset references).

* Git and pull-request workflow; all code merged to the client repository, no private forks.

Preferred:

* Architecture Decision Records (ADRs) and written process documentation.

* Categorical encoding at scale (~30–35 source variables expand to ~70 columns).

* Sports, streaming, ticketing or subscription-business domain exposure.

* Hierarchical or mixed-effects models for low-volume segments.

Skills

SQL
Snowflake
Git
Python

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