Office Assistant

1-Year Diploma Program | 31 Credits

Do you always start your day with a plan? Is organization your strong suit? Talented Office Assistants are at the center of high-energy offices in Sioux Falls and across the nation. Find the fast-track to a career in just one year at STI. You will prepare documents, oversee schedules, support multiple staff members and maintain databases and filing systems. You could work in as an office manager, administrative assistant, human resources assistant or general office clerk. 

Your other duties might include: 

  • Answering phones and taking messages 
  • Arranging meetings and events 
  • Performing basic 10-key calculator skills 
  • Properly format business letters, reports and memos 
  • Indexing or alphabetizing information

Office administration duties occur in almost every economic area, including government, education and private businesses. Your work is essential to keep an organization running efficiently and professionally.

Office Assistants are tasked with many clerical and organizational duties. As a graduate from Southeast Technical Institute, you will be valued for your talents working with spreadsheets, database administration, word processing, presentations and customer service. 


Job Placement Rate


Southeast Tech's Office Assistant program boasts a 100% job placement rate among its graduates.


Why Study to be an Office Assistant at Southeast Tech?

At STI in Sioux Falls, South Dakota, this program delivered in a traditional classroom format with Fridays off, and is also available onlineYour coursework also helps you:

Know Your Tools: The Office Assistant program at Southeast Tech is a one-year program that teaches you the tools of the trade. You gain skills in Microsoft Office Suite, fax machines, copiers, printers, 10-key calculators, and electronic and manual filing systems.

Think Critically: You could use your STI training to make good decisions on prioritizing, organization and problem-solving.

Gain Professionalism: As a top Office Assistant from Southeast Tech, you will learn strong ethics and confidentiality, as well as understanding the value and importance of meeting deadlines. 

Serve Your Customer: Office Assistants must demonstrate the ability to choose the appropriate means of communication for each situation. At Southeast Tech, you will learn valuable customer services skills for dealing with internal and external customers. 

Explore classes  

Southeast Tech’s curriculum for Office Assistants includes classes in Advanced Computer Applications, Document Formatting and Production, Business Communications, and Customer Service. 

View Curriculum   ADMISSION CRITERIA  


Costs for this program are calculated based on a charge of $249 per credit hour, plus applicable fees.

Total Program Costs

See Cost & Fee Breakdown

Request Information 

Want to know more? Request information about Southeast Tech from the admissions office.


Come Visit

Come to campus. Take a tour. Envision yourself as a Southeast Tech student. 



Apply to Southeast Tech today, and start down the path to your future.



Deborah Nowak

Office Assistant
Mickelson Center 110E

All Business Programs

Other Programs Related to Office Assistant

If you’re interested in an office career, you might also be interested in these other programs at Southeast Tech:

Business Administration