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Data Scientist

Millennium, New York, New York

Posted pay

$165K–$250K

a year

Location: New York, New York
Work type: Onsite
Level: Not given
Experience: 3+ years
Skills in the job text: Python
AWS
SQL
Azure
NumPy
pandas
scikit-learn
Posted: Jul 13, 2026
Last check: 7 h ago
Job type: Data science

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Millennium

About Millennium: funding, hiring and pay

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The role

We're looking for a hard-working, thoughtful Data Scientist who delivers results. You'll transform messy data into useful models and decision-making tools, collaborate closely with engineering and business development teams, and own projects from start to finish—including scoping, deployment, and monitoring.

In Business Development at Millennium, we identify and onboard trading talent and data advantages that drive profitability. We evaluate data vendor solutions and surface novel data points that create early, differentiated signals ahead of competitors. Some work involves delivering reliable, established solutions, while much of it is creative—extracting hidden insights from existing data and discovering new sources.

Strong Python skills are required. Hands-on experience with large language models (LLMs) and their practical applications is a significant plus. We value humility, reliability, clear communication, and collaborative teamwork.

What you will do

Own outcomes: break projects into milestones, estimate realistically, meet deadlines, and surface risks early with options.
Build and deploy models: develop ML models (including LLM-enabled solutions when appropriate), design features, evaluate rigorously, and contribute to production-grade pipelines.
Work the full data lifecycle: wrangle and clean data, implement data quality checks, write maintainable Python/SQL, add tests, and document decisions.
Collaborate cross-functionally: translate business questions into analysis, present trade-offs clearly, and iterate with stakeholders and tech partners.
Deploy to production: partner with data engineers to ship to production (APIs, batch jobs, monitoring) and create feedback loops for continuous improvement.
Drive system improvements: propose pragmatic improvements to data, tooling, and process that reduce manual work and increase reliability.

What you need

Bachelor's degree in Computer Science, Data Science, Statistics, or a related field.
3+ years of hands-on experience in data science, analytics, or ML, with at least one end-to-end project shipped to production used by real stakeholders.
Strong Python proficiency (Pandas, NumPy, Matplotlib, and Scikit-learn).
Sound understanding of ML fundamentals: problem framing, validation, metrics, overfitting, feature engineering.
Experience with SQL and NoSQL database structures along with relational, columnar and document databases.
Experience with LLMs and modern NLP: prompt engineering, retrieval-augmented generation (RAG), vector databases, knowledge graphs—plus a pragmatic sense of when not to use them.
Strong data visualization and storytelling abilities using tools such as Plotly, Dash, Streamlit, or similar frameworks.
Familiarity with cloud services (AWS/Azure) for data storage, compute, and deployment.

About Millennium

Strong ownership: Plan thoroughly, communicate proactively, and meet deadlines—we value reliability over last-minute heroics
Humble and collaborative: Seek and provide constructive feedback, write clear documentation, and pair program when it helps the team
Bias toward action: Start simple, deliver iteratively, and improve based on evidence

The estimated base salary range for this position is $165,000 to $250,000, which is specific to New York and may change in the future. Millennium pays a total compensation package which includes a base salary, discretionary performance bonus, and a comprehensive benefits package. When finalizing an offer, we take into consideration an individual’s experience level and the qualifications they bring to the role to formulate a competitive total compensation package.

Read the job posting on the Millennium site

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Source: the company job board. We last checked this job 7 h ago. We first saw it 25 h ago. A job on a job board does not always mean that the team interviews people now.

Millennium

Open tech jobs: 122
With posted pay: 30%
Median posted base: $170K–$250K

About Millennium: funding, hiring and pay

Compared with similar jobs

This base pay is near the median for data science jobs in New York with no level in the job title.

Median: $200K a year
Other jobs in the group: 70

We compare the middle of each posted range. This is base pay as posted. The group does not include this job.