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ION · 4 months ago

Lead Data Scientist, New York - Contract

New York

Contract

Hybrid

Senior Level, Lead/Staff

8+ years exp

ION Group is a global consultancy specializing in designing and building next-generation digital products for leading financial institutions. They are seeking a Lead Data Scientist to drive advanced data science solutions, mentor teams, and communicate complex technical concepts to stakeholders.

AccountingAsset ManagementFinanceFinancial ServicesSoftware

H1B Sponsor Likely

Responsibilities

Partner with stakeholders to define data science opportunities, shape problem statements, and deliver impactful solutions

Lead end-to-end data science projects—from exploration and modeling to deployment and performance monitoring

Mentor and guide a team of data scientists and data engineers; set best practices for modeling, experimentation, and validation

Design and implement predictive models, optimization frameworks, and machine learning algorithms tailored to complex business use cases

Develop and present compelling visualizations to convey complex data relationships through clear and insightful static graphics

Communicate complex technical concepts clearly to senior stakeholders, clients, and non-technical audiences

Collaborate with Lab49’s design and engineering teams to embed data science models into scalable digital products

Stay ahead of industry trends, research, and emerging technologies in AI/ML, with a focus on practical business applications

Qualification

Data ScienceMachine LearningPredictive AnalyticsPythonSQLData VisualizationMLOpsClient-facing SkillsStatistical ModelingBig Data ToolsBlockchain Analytics

Required

8+ years of experience in data science, including at least 2–3 years in a lead/principal role

Strong background in applied machine learning, statistical modeling, and predictive analytics

Proficiency in Python (Pandas, NumPy, Scikit-learn, Matplotlib, PyTorch/TensorFlow) and SQL; experience with big data tools (Spark, Databricks) is a plus

Strong understanding of model deployment, MLOps practices, and productionizing ML solutions

Proven ability to create effective data visualizations for storytelling and decision support

Excellent client-facing skills, with the ability to communicate technical concepts and business impact

Master's or Ph.D. in Computer Science, Data Science, Statistics, Applied Mathematics, or a related field

Preferred

Some fluency in blockchain and smart contract analytics

Company

ION

Glassdoor3.3

ION Group provides solutions for electronic trading, position management, pricing, risk management, and downstream processing for clients.

Founded in 1998

New York, New York, USA

10001+ employees

https://iongroup.com

H1B Sponsorship

ION has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (2)

2024 (1)

2022 (2)

2021 (4)