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Intern Jobs in Westchester, IL

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High Performance Computing (HPC) Intern (Summer 2027 - Chicago) Optiver

Chicago, Illinois

Motivated by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, collectively tackling some of the toughest challenges in the financial markets. You’ll contribute to meaningful projects that support large-scale research, machine learning, and data analysis pipelines, and you’ll see your work drive real impact across trading teams.

4 days ago

Intern - Operations/Production Management (Summer 2027) Plexus Corp

Buffalo Grove, IL

$22–$26 / hour

Driven by a passion for excellence, we partner with leading Aerospace/Defense, Healthcare/Life Sciences and Industrial companies to design, manufacture and service some of the world's most transformative products, including advanced surgical systems, diagnostic instruments, healthcare imaging equipment, mission critical aerospace systems, and electric vehicle (EV) charging solutions. As a team member, you will engage in impactful work through global collaboration and the use of emerging technologies, join an inclusive culture where every team member is valued and working toward a greater purpose, and be empowered to reach your full potential through various development programs designed to accelerate your growth.

25 days ago

2027 Summer Intern: Operations & Supply Chain - Join our Early Talent Community OFI

Chicago, IL

$22–$32 / hour
Intern

Through our core ingredient platforms that we’re known for globally – cocoa, coffee, dairy, nuts, and spices – we partner with food and beverage manufacturers, retailers, and foodservice operators worldwide to help meet evolving consumer needs. As a Summer 2027 Intern, you will have opportunities to learn and contribute to what’s on trend in food & beverage while building a robust network, demonstrating leadership skills, and having fun along the way.

4 days ago

Intern - Supply Chain (Summer 2027) Plexus Corp

Buffalo Grove, IL

$22–$24 / hour

25 days ago

Business Analytics Intern Smartly.io Solutions Inc.

Chicago, IL

Our comprehensive advertising platform seamlessly integrates the capabilities of media, creative, and intelligence to power more than 800 billion impressions and generate more than 300 billion creatives annually, delivering tangible business outcomes for brands and advertisers. Our end-to-end technology, unmatched access to media platforms and exceptional customer service help Fortune 500 brands to reach and engage consumers and learn what performs best.

16 days ago

Project Management & Implementation Intern SPX Technologies Inc

Elk Grove Village, IL

$20–$25 / hour

This role is designed for an undergraduate student studying AI, Computer Science, Data Science, or a related field, who is interested in understanding real-world project delivery processes and applying AI-driven solutions to improve efficiency, quality, and consistency. We tailor our offers within the range based on organizational needs, internal equity, market data, geographic zone, and the selected candidate's experience, education, industry knowledge, location, technical and communication skills, and other factors that may prove relevant during the selection process.

3 days ago

Intern Engineer - Summer 2027 HNTB Corporation

Chicago, Illinois

Staffing/employment agencies who have fee agreements with HNTB must submit applicants to the designated HNTB recruiter to be eligible for placement fees. Actual compensation will be dependent on factors, including but not limited to, the individual’s qualifications, experience, knowledge, skills, and abilities as well as physical work location within the state.

30+ days ago

Returning New Grad Engineer I - Winter/Summer 2027 - Great Lakes Division (For Current/Former Hntb Interns Only) HNTB Corporation

Chicago, IL

$66,406.79–$99,610.19 / year

Locations: Allen Park, MI, Ashwaubenon, WI (Green Bay), Blue Ash, OH (Cincinnati), Chicago, IL, Cleveland, OH, Columbus, OH, Detroit, MI, Downers Grove, IL, East Lansing, MI (Lansing), Grand Rapids, MI, Indianapolis, IN, Jackson, MI, Madison, WI, Milwaukee, WI (East Wisconsin Avenue), Minneapolis, MN, Sterling Heights, MI, Valparaiso, IN, Westfield, IN (Carmel). Supports engineering teams with various tasks and duties including but not limited to research, data collection, field investigations, development, and design of projects.

30+ days ago

Structural Intern HDR Inc

Chicago, IL

$25–$30 / hour

Illinois: $25.00 - $30.00'','''',''United States-Illinois-Chicago'',''United States-Illinois-Chicago'','''','''','''','''','''','''','''','''',''Building Engineering'',''Building Engineering'',''Full-time'',''Full-time'',''Temporary'',''Temporary'','''','''',''Building Structural'',''Building Structural'',''Sep 24, 2026'',''Sep 24, 2026'',''false'',''791669'',''791669'',''true'',''791669'',''false'',''Submission for the position: Structural Intern - (Job Number: 196479)'',''false'',''791669'',''false'',''true''. '',''We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement.

2 days ago

Mechanical Intern HDR Inc

Chicago, IL

$25–$30 / hour

Illinois: $25.00 - $30.00'','''',''United States-Illinois-Chicago'',''United States-Illinois-Chicago'','''','''','''','''','''','''','''','''',''Building Engineering'',''Building Engineering'',''Full-time'',''Full-time'',''Temporary'',''Temporary'','''','''',''Building Mechanical'',''Building Mechanical'',''Sep 24, 2026'',''Sep 24, 2026'',''false'',''791648'',''791648'',''true'',''791648'',''false'',''Submission for the position: Mechanical Intern - (Job Number: 196476)'',''false'',''791648'',''false'',''true''. '',''We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement.

2 days ago

Site Civil Intern HDR Inc

Chicago, IL

$25–$30 / hour

Illinois: $25.00 - $30.00'','''',''United States-Illinois-Chicago'',''United States-Illinois-Chicago'','''','''','''','''','''','''','''','''',''Building Engineering'',''Building Engineering'',''Full-time'',''Full-time'',''Temporary'',''Temporary'','''','''',''Building Site Civil'',''Building Site Civil'',''Sep 24, 2026'',''Sep 24, 2026'',''false'',''791684'',''791684'',''true'',''791684'',''false'',''Submission for the position: Site Civil Intern - (Job Number: 196480)'',''false'',''791684'',''false'',''true''. '',''We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement.

2 days ago

ICT Security Intern HDR Inc

Chicago, IL

$25–$30 / hour

Illinois: $25.00 - $30.00'','''',''United States-Illinois-Chicago'',''United States-Illinois-Chicago'','''','''','''','''','''','''','''','''',''Building Engineering'',''Building Engineering'',''Full-time'',''Full-time'',''Temporary'',''Temporary'','''','''',''Information Communication Technology (ICT)/Security'',''Information Communication Technology (ICT)/Security'',''Sep 24, 2026'',''Sep 24, 2026'',''false'',''791670'',''791670'',''true'',''791670'',''false'',''Submission for the position: ICT Security Intern - (Job Number: 196481)'',''false'',''791670'',''false'',''true''. '',''We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement.

2 days ago

Electrical Intern HDR Inc

Chicago, IL

$25–$30 / hour

Illinois: $25.00 - $30.00'','''',''United States-Illinois-Chicago'',''United States-Illinois-Chicago'','''','''','''','''','''','''','''','''',''Building Engineering'',''Building Engineering'',''Full-time'',''Full-time'',''Temporary'',''Temporary'','''','''',''Building Electrical'',''Building Electrical'',''Sep 24, 2026'',''Sep 24, 2026'',''false'',''791668'',''791668'',''true'',''791668'',''false'',''Submission for the position: Electrical Intern - (Job Number: 196478)'',''false'',''791668'',''false'',''true''. '',''We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement.

2 days ago

Construction Intern Exp Global Inc

Chicago, IL

$21–$30 / hour

Here, you join a team that leverages differences, harnesses their entrepreneurial spirit in an employee-owned company, that believes diversity is what gives us strength, seeks sustainable results and shares ambitions for each other, our clients and the communities we are part of and serve. EXP's Transportation and Infrastructure Practice provides comprehensive planning, design and construction engineering services for all types of roadway, bridge, water resource, rail, transit and aviation projects.

25 days ago

Biosurgery Marketing Intern Becton Dickinson and Co

Vernon Hills, IL

$18–$28.70 / hour

Contribute to product launches and commercialization activities by supporting commercial readiness initiatives, launch planning, training materials, sales enablement tools, and cross-functional project coordination for new product introductions and portfolio expansion opportunities. Participate in customer-focused and innovation-driven projects, including market research, voice-of-customer initiatives, product evaluations, and special projects designed to improve customer experience and commercial effectiveness.

30+ days ago

Global Operations Finance Intern Ingredion Inc

Westchester, IL

As the Operations Finance Intern, you will help the business by identifying growth opportunities through analyzing manufacturing trends, intercompany volume/pricing, as well as by assisting in the development of our monthly and quarterly financial reporting, You will be an important resource in the Operations Finance department, and we believe that this internship will give you the opportunity to apply academic experience with a tailored learning path in a corporate setting to drive your career development. Final base salary will be determined based on several factors which may include but are not limited to responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data and applicable bargaining agreement (if any).

25 days ago

Seeds Sales Intern Syngenta AG

Chicago, IL

$20–$45 / hour

As part of Syngenta''s Emerging Talent Program, you will gain hands-on experience, exposure to day-to-day business operations, and opportunities to apply your academic knowledge to real-world challenges while developing your professional skills. Location: Flexible location within the United States (Colorado, Illinois, Iowa, Kansas, Minnesota, Wisconsin, Oklahoma, Nebraska, Missouri, Indiana, Ohio, Michigan, North Dakota, and South Dakota).

25 days ago

Summer 2027 Intern - Special Situations (Chicago, IL) SC&H Group External

Chicago, Illinois

$30–$35 / hour

SC&H Capital’s Special Situations team partners with middle market companies facing challenging situations to provide indispensable insights, a proven process, and the right strategy that quickly produces a strategic solution, often in the form of a sale or financing. With over 175 years of combined senior-level experience, our team offers extensive professional expertise across most industries—including healthcare, manufacturing, consumer, business services, technology, and government contracting.

18 days ago

Actuarial Intern SageSure Insurance Managers

Chicago, IL

We have more than 1,000 employees in a distributed workforce environment across 12 offices-Fairfield, CA; Mountain View, CA; Cheshire, CT; Jacksonville, FL; Tallahassee, FL; Tampa, FL; Chicago, IL; Jersey City, NJ; Marlton, NJ; Cincinnati, OH; Houston, TX; Sheboygan, WI-who are tackling the industry's toughest challenges. . We champion belonging and inclusion for all identities, including, but not limited to, race, ethnicity, religion, sexual orientation, age, veteran status, ability status, gender, and country of origin, striving to create a culture where all individuals feel valued, respected, and empowered to bring their authentic selves to work.

15 days ago

Financial Planning And Analysis Intern (F&Ii) Ingredion Inc,

Westchester, IL

$20–$23 / hour

Final base salary will be determined based on several factors which may include but are not limited to responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data and applicable bargaining agreement (if any). Internship Program Events & Activities - programming catered toward career exploration, networking, and professional development - including the annual Capstone Summit at Ingredion HQ in Westchester, IL.

17 days ago

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Intern Jobs in Westchester, IL

High Performance Computing (HPC) Intern (Summer 2027 - Chicago) Optiver

Intern - Operations/Production Management (Summer 2027) Plexus Corp

2027 Summer Intern: Operations & Supply Chain - Join our Early Talent Community OFI

Intern - Supply Chain (Summer 2027) Plexus Corp

Business Analytics Intern Smartly.io Solutions Inc.

Project Management & Implementation Intern SPX Technologies Inc

Intern Engineer - Summer 2027 HNTB Corporation

Returning New Grad Engineer I - Winter/Summer 2027 - Great Lakes Division (For Current/Former Hntb Interns Only) HNTB Corporation

Structural Intern HDR Inc

Mechanical Intern HDR Inc

Site Civil Intern HDR Inc

ICT Security Intern HDR Inc

Electrical Intern HDR Inc

Construction Intern Exp Global Inc

Biosurgery Marketing Intern Becton Dickinson and Co

Global Operations Finance Intern Ingredion Inc

Seeds Sales Intern Syngenta AG

Summer 2027 Intern - Special Situations (Chicago, IL) SC&H Group External

Actuarial Intern SageSure Insurance Managers

Financial Planning And Analysis Intern (F&Ii) Ingredion Inc,

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