Senior Data Scientist — Fusion Ops & AI

Helion; Everett (WA); On-site; USD 150,000 - 190,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

PTO 31 days

Holidays

401(k) match

Parental leave

Wellness stipend

Job summary

Helion in Everett, WA is seeking a senior Data Scientist to build the data and knowledge foundation for fusion systems. You will transform complex experimental and operational data into structured datasets and AI-enabled tools that empower engineers to analyze and decision-make at scale.

You will partner with engineers, scientists, and operators to create data pipelines, ontologies, and decision-support capabilities, including retrieval, summarization, and anomaly analysis, reporting to the R&D

Qualifications

• 7+ years with statistics, data science on hardware/engineering data.
• Experience with time-series data to detect trends and anomalies.
• Proficiency in Python and building data pipelines.

Responsibilities

• Analyze real-time and historical system data for control room insights.
• Develop data schemas, ontologies, and metadata frameworks.
• Prototype decision-support tools for anomaly detection.
• Define metrics for evaluating statistical models and AI solutions.
• Collaborate on AI-powered workflows with software engineers.
• Evolve data pipelines across teams to integrate diverse data sources.

Skills

Statistics

Data science

Time-series analysis

Python

Data pipelines

Ontology / data modeling

LLM APIs & AI

Tools

RAG & embeddings

Semantic search

Analytics tooling

Production data systems

Job description

Helion in Everett, WA is seeking a senior Data Scientist to build the data and knowledge foundation for fusion systems. You will transform complex experimental and operational data into structured datasets and AI-enabled tools that empower engineers to analyze and decision-make at scale.

You will partner with engineers, scientists, and operators to create data pipelines, ontologies, and decision-support capabilities, including retrieval, summarization, and anomaly analysis, reporting to the R&D