Job Summary NiSource Internship Program Introduction NiSource is currently seeking a Summer Operational Excellence Intern. Successful applicants will become integral members of the department while learning within a team environment, completing meaningful tasks and collaborating with team members and leaders on important projects. This position will be a great opportunity for the candidate desiring to launch their career in the field. Successful applicants will build professional relationships with other interns and all levels of NiSource personnel while participating in rewarding professional development exercises and fun, team-building activities. Interns will obtain a broad overview of NiSource's operations and current events in the utilities industry. This is a 12-week summer internship program starting in May 2027, for students entering their junior or senior year in fall 2027. The role is based in Columbus, OH. Candidates must reside within 50 miles of the reporting location to be eligible. Essential Functions Electric Planning

• Assist in the planning, development, and implementation of the operations work plan in support of Power Delivery. Assist in data collection and reports to monitor programs, work plans, operating budgets, and forecasts in support of Power Delivery.
• Successful candidate to be currently enrolled in an accredited university with a major in business, accounting or engineering discipline. GIS Environmental
• The GIS Environmental Intern will support the Environmental Department in either Columbus, OH or Merrillville, IN to research and gather environmental files in the public domain and add them to our Geographic Information System (GIS) for our service territory. Candidates with backgrounds in GIS application use or support, and GIS editing are encouraged to apply. Continuous Improvement
• The Transformation Office (TO) supports and coaches business-led Customer Value teams including business leaders, frontline workers and subject-matter experts to help the business build capabilities to identify ways to work smarter and more efficiently to unlock value for our customers.

This role will assist the TO Consultants and Governance Lead positions through multiple activities. Required Qualifications For Position Major in GIS, Engineering, Accounting, Operations Management, Business Management or related discipline. Required GPA 3.0 and above. Experience working independently Proficiency in Microsoft Word, PowerPoint, and Excel Excellent analytical abilities, including process analysis and development, problem-solving and root-cause analysis. Authorized to work in the United States without requiring sponsorship Strong verbal and written skills Demonstrated problem analysis and solving Preferred Additional Qualifications for Position Physical Demands The preceding description is not designed to be a complete list of all duties and responsibilities required of the position. As a public utility, NiSource provides essential services to customers 24/7. Emergency needs can arise at various times throughout the year, including during storm season. Employees may be required to support emergency response efforts, which could include working outside normal hours or assisting with tasks outside of typical responsibilities. Work Authorization Candidates must be legally authorized to work in the United States and must not require employer sponsorship now or in the future. Workplace Connection We value a workplace where everyone feels respected, included, and able to do their best work. We encourage open dialogue, value different perspectives, and work collaboratively with employees, customers, and partners. We recognize and respect the unique experiences people bring, including different backgrounds, cultures, and viewpoints. We treat others with professionalism and care, and we each play a part in creating a positive work environment. Veteran Hiring & Inclusion NiSource is proud to support veterans, transitioning service members, and military spouses. We value the leadership, teamwork, and mission-focused experience the military community brings, and we are committed to providing an inclusive workplace with opportunities for professional growth and development. Equal Employment Opportunity NiSource is committed to providing equal employment opportunities in each of its companies to all employees and applicants for employment without regard to race, color, religion, national origin or ancestry, veteran status, disability, gender, age, marital status, sexual orientation, gender identity, sex (including pregnancy, lactation, childbirth or related medical conditions), genetic information, citizenship status, or any protected group status as defined by law. Each employee is expected to abide by this principle. By applying, you may also be considered for other roles that match your skills and experience. ADA Accommodations If you need a reasonable accommodation to participate in any stage of the hiring process or to perform the essential functions of the position, please contact OneHR at OneHR@nisource.com or 1-888-640-3320 Safety Statement Safety is a core value at NiSource. Employees are expected to follow safety requirements, report hazards, and help maintain a safe environment for themselves and their coworkers. E-Verify NiSource participates in the U.S. Department of Homeland Security's E-Verify program. Please review the following notices regarding your rights and responsibilities under U.S. law. E-Verify Poster (English and Spanish) Right to Work Poster (English and Spanish) Salary Range

• : $17.20 - $29.70
• The salary offered to a candidate is based on several factors including but not limited to the candidate's skills, job-related knowledge, and relevant experience , as well as internal pay equity .

Posting Start Date:

2026-09-01 Posting End Date (if applicable): 2026-10-03 Please note that the job posting will close on the day before the posting end date.