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Junior Data Scientist Jobs in Romeoville, IL (NOW HIRING)

RB Global Inc.

Staff Data Scientist

Westchester, IL · On-site

$100 - $140/hr

Mentor junior data scientists and analysts, and contribute to best practices across the data science team Required Qualifications * 5-7 years of experience building and deploying production machine ...

Ritchie Bros.

Staff Data Scientist

Westchester, IL

Mentor junior data scientists and analysts, and contribute to best practices across the data science team Required Qualifications * 5-7 years of experience building and deploying production machine ...

Munich Re

Actuarial Data Scientist (FCAS)

Chicago, IL · On-site +1

Mentor junior data scientists and team members. Required Technical Skills: * FCAS required. * Experience in multiple programming languages, including R and Python. * Deep understanding of GLMs and ...

PayPal

Sr Data Scientist

Chicago, IL · On-site

$130.50 - $193.60/hr

Mentor and guide junior data scientists. * Stay updated with the latest trends in data science. Qualifications * 3+ years relevant experience and a Bachelor's degree OR any equivalent combination of ...

Addison Group

Sr. Data Scientist

Chicago, IL · Remote

$85 - $100/hr

Mentor junior data scientists by providing technical guidance, reviewing work, and fostering their professional development. * Demonstrate a commitment to ethical data science, ensuring models and ...

Munich RE

Actuarial Data Scientist (FCAS)

Chicago, IL · On-site

Mentor junior data scientists and team members. Required Technical Skills: * FCAS required. * Experience in multiple programming languages, including R and Python. * Deep understanding of GLMs and ...

AArete

Senior Data Scientist

Chicago, IL · On-site

Ability to lead projects and mentor junior data scientists, own and deliver outcome with thorough project management, planning and sound architectural decisions * Advanced Generative AI experience ...

AArete

Senior Data Scientist

Chicago, IL · On-site

Ability to lead projects and mentor junior data scientists, own and deliver outcome with thorough project management, planning and sound architectural decisions * Advanced Generative AI experience ...

PayPal

Sr Data Scientist

Chicago, IL · On-site

$123K - $183K/yr

Mentor and guide junior data scientists. * Stay updated with the latest trends in data science. Expected Qualifications: * 3+ years relevant experience and a Bachelor's degree OR Any equivalent ...

Daniel J Edelman Holdings, Inc.

Data Scientist

Chicago, IL · On-site +1

$139K - $144K/yr

Edelman Intelligence is seeking a Data Scientist. The person in this role will work to help drive ... mentor more junior team members. Responsibilities: * Assist with day-to-day project execution ...

Daniel J Edelman Holdings, Inc.

Data Scientist

Chicago, IL · On-site

$139K - $144K/yr

Edelman Intelligence is seeking a Data Scientist. The person in this role will work to help drive ... mentor more junior team members. Responsibilities: * Assist with day-to-day project execution ...

JLL

Lead Data Scientist

Chicago, IL · On-site

Act as a technical leader who advises, mentors, and delegates to junior data scientists and analysts. * Develop and own financial forecasting models, including revenue projections, cost modeling ...

Smithfieldgroup

Data Scientist

Chicago, IL · On-site

$139.82 - $144.82/hr

... mentor more junior team members.Responsibilities:* Assist with day-to-day project execution ... Bachelor's degree in Data Science, Computer Science, Data Engineering, Marketing Analytics, or ...

New

Munich Re

Data Scientist

Chicago, IL · On-site +1

Mentor junior team members. * Data Scientist: 2 or more years of data science/predictive analytics experience in (re)insurance or 4 or more years predictive modeling experience in another industry ...

SageSure

Data Scientist

Chicago, IL · On-site

Mentor junior team members and promote best practices for AI use within the department. * Perform ... Bachelor's degree in Data Science, Computer Science, Statistics, Mathematics, Geographic ...

US004 Edelman Data & Intelligence

Data Scientist

Chicago, IL · On-site

$139.82 - $144.82/hr

Efficiently manage data from disparate sources, distilling into datasets prepared for data science. * Execute statistical models to support client projects. * Prepare client facing material (example:

New

Tavern Research

Data Scientist II

Chicago, IL · On-site

$150K - $179K/yr

Data Scientist II Location: Chicago, IL Office: 3 days/week in South Loop office Reports to: Chief ... You're generous with your expertise, able to support teammates and mentor junior modelers, while ...

Ulta Beauty, Inc.

Data Scientist

Bolingbrook, IL · On-site

$102K - $130K/yr

This Data Scientist is an integral part of the Data Science and Machine Learning practice within our Enterprise AI team at Ulta Beauty. This team utilizes the power of data science and machine ...

Ulta Beauty, Inc.

Data Scientist

Bolingbrook, IL · On-site

$102K - $130K/yr

This Data Scientist is an integral part of the Data Science and Machine Learning practice within our Enterprise AI team at Ulta Beauty. This team utilizes the power of data science and machine ...

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All JobsData Scientist JobsJunior Data Scientist JobsJunior Data Scientist Jobs in Romeoville, IL

Junior Data Scientist information

See Romeoville, IL salary details

$38.2K

$125.1K

$200.4K

How much do junior data scientist jobs pay per year?

As of Sep 3, 2026, the average yearly pay for junior data scientist in Romeoville, IL is $125,145.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,400.00 and $138,700.00 per year, depending on experience, location, and employer.

What is a junior data scientist?

Junior Data Scientists are entry-level professionals who assist in analyzing and interpreting complex data to help organizations make informed decisions. They are typically responsible for tasks such as data cleaning, exploratory data analysis, creating basic models, and supporting senior data scientists. Junior Data Scientists often work with tools like Python, R, SQL, and data visualization libraries. They collaborate with other team members to translate business problems into analytical solutions and continuously develop their technical and analytical skills.

What skills and qualifications are needed to thrive as a junior data scientist?

A Junior Data Scientist needs a solid understanding of statistics, data analysis, and programming languages such as Python or R, typically supported by a degree in mathematics, computer science, or a related field. Familiarity with data visualization tools (like Tableau), machine learning libraries (such as scikit-learn), and database systems (SQL) is highly valuable. Strong problem-solving abilities, curiosity, and effective communication skills help distinguish individuals in this role. These competencies are essential for extracting insights from data, collaborating with teams, and driving data-informed decision-making.

What types of projects does a junior data scientist typically work on, and how do they contribute to larger team goals?

Junior Data Scientists often work on data cleaning, exploratory data analysis, and supporting the development and testing of machine learning models. They usually collaborate with senior data scientists and data engineers, contributing by preparing datasets, running analyses, and creating visualizations to help inform business decisions. This role offers valuable exposure to real-world data challenges and provides opportunities to learn best practices in data science, paving the way for advancement to more complex modeling and project leadership as experience grows.

What is the difference between Junior Data Scientist vs Data Analyst?

AspectJunior Data ScientistData Analyst
Required CredentialsBachelor's degree in Data Science, Statistics, or related field; some roles prefer certifications in data analysis or programmingBachelor's degree in Statistics, Mathematics, or related field; certifications like Microsoft Excel or Tableau are common
Work EnvironmentCollaborates with data scientists and engineers; involved in building models and advanced analyticsFocuses on data cleaning, visualization, and reporting; often works with business teams
Employer & Industry UsageTech companies, finance, healthcare, and e-commerceRetail, marketing, finance, and consulting firms

Junior Data Scientists and Data Analysts often share educational backgrounds and work in data-driven industries. However, Junior Data Scientists typically engage in more complex modeling and machine learning tasks, while Data Analysts focus on data visualization and reporting. Both roles are essential for data teams but differ in technical depth and responsibilities.

How do I become a junior data scientist?

To become a junior data scientist, you typically need a bachelor's degree in a related field such as computer science, statistics, or mathematics. Gaining skills in programming languages like Python or R, understanding data analysis, and familiarity with tools like SQL and machine learning frameworks are essential. Internships or entry-level projects can also help build practical experience.

What are the most commonly searched types of Data Scientist jobs in Romeoville, IL?

The most popular types of Data Scientist jobs in Romeoville, IL are:

What are popular job titles related to Junior Data Scientist jobs in Romeoville, IL?

For Junior Data Scientist jobs in Romeoville, IL, the most frequently searched job titles are:

What cities near Romeoville, IL are hiring for Junior Data Scientist jobs?

Cities near Romeoville, IL with the most Junior Data Scientist job openings:

Junior Data Scientist jobs near you
Infographic showing various Junior Data Scientist job openings in Romeoville, IL as of August 2026, with employment types broken down into 1% As Needed, 80% Full Time, 13% Part Time, 5% Contract, and 1% Nights. Highlights an 82% Physical, 4% Hybrid, and 14% Remote job distribution, with an average salary of $125,145 per year, or $60.2 per hour.

Staff Data Scientist

RB Global Inc.

Westchester, IL • On-site

$100 - $140/hr

Other

Posted 29 days ago

Job description

Description

About the Role

The Staff Data Scientist will play a key role in advancing IAA’s Machine Learning (ML) and advanced analytics initiatives. This role involves building supervised and unsupervised ML models, as well as developing AI agentic applications, with a strong business orientation and a track record of delivering data-driven services. The Staff Data Scientist will implement scalable, machine learning-based solutions to drive growth and operational efficiency across the organization.

Working closely with cross-functional teams within the IAA ecosystem, the Staff Data Scientist will help integrate these solutions into enterprise-scale services. This role requires deep knowledge of data best practices to ensure the most appropriate data sources are leveraged to answer business questions and perform advanced analysis of customer behavior, vehicle listings, and other business data.

Responsibilities

  • Lead end-to-end data science projects, from problem framing and data exploration through model development, deployment, and monitoring
  • Design and build supervised, unsupervised, and deep learning models to solve high-impact business problems
  • Develop AI agentic applications and LLM-powered solutions to automate workflows and unlock new capabilities
  • Design and analyze experiments (A/B tests, causal inference) to measure model and product impact
  • Perform feature engineering, data validation, and quality assurance across large, complex datasets
  • Partner with data engineering and ML platform teams to productionize models and ensure scalability, reliability, and monitoring
  • Translate ambiguous business questions into well-scoped data science problems and communicate findings to technical and non-technical stakeholders
  • Mentor junior data scientists and analysts, and contribute to best practices across the data science team

Required Qualifications

  • 5–7 years of experience building and deploying production machine learning models, including supervised, unsupervised, and deep learning approaches
  • Advanced proficiency in Python and SQL, with deep experience in ML libraries such as scikit-learn, PyTorch or TensorFlow, pandas, and NumPy
  • Hands-on experience building AI agentic applications using LangChain, LangGraph, or similar frameworks, including integration with LLMs and external tools/APIs
  • Hands-on experience with the full ML lifecycle: feature engineering, model training, hyperparameter tuning, evaluation, deployment, and monitoring
  • Strong foundation in statistics, experimental design (A/B testing), and core ML algorithms (gradient boosting, neural networks, clustering, dimensionality reduction)
  • Experience working with large-scale datasets using distributed computing frameworks (Spark, Dask) and cloud platforms (AWS, Azure, or GCP)
  • Proven ability to translate ambiguous business problems into technical solutions and communicate results to both technical and non-technical stakeholders
  • Experience mentoring junior data scientists in an Agile environment

Preferred Qualifications

  • Hands-on experience with Natural Language Processing (NLP) and/or computer vision applications
  • Familiarity with Large Language Models (LLMs), prompt engineering, and Generative AI techniques
  • Experience with MLOps practices and CI/CD pipelines for machine learning workflows
  • Contributions to open-source projects
EEO Information

Ritchie Bros. is an equal opportunity employer and ensures nondiscrimination in all activities in accordance with all applicable laws. This position is open to all qualified applicants who are legally entitled to work in the country in which this job is located. Candidate selection is made by Talent Acquisition. Only electronic applications can be accepted.

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