Admin Assistant II

Interstates; Sioux Falls (SD); On-site; USD 40,000 - 52,000; Full time

Benefits offered by this job

401(k) match

Health, dental, vision insurance

Disability and life insurance

Paid time off

Holiday pay

Bonus incentives

Career coaching

Advancement opportunities

Community outreach volunteer time

Family‑ and safety‑focused culture

Job summary

Interstates is seeking an Administrative Assistant II to support the Organizational Development team at our Sioux Falls, SD location. You will coordinate OD projects, prepare meetings and trainings, draft communications, and track details from planning through follow-up.

Ideal candidates will have strong organization, proactive problem solving, and excellent written and verbal communication. Proficiency with Microsoft Outlook, Word, Excel, PowerPoint, and Teams is essential.

Qualifications

• Experience coordinating multiple priorities and projects.
• Ability to draft polished documents and presentations.
• Strong written and verbal communication skills.
• Attention to detail and adaptability to changing priorities.

Responsibilities

• Coordinate OD projects from planning through follow-up with timelines and key details.
• Track deadlines, action items, and dependencies; flag upcoming needs or roadblocks.
• Coordinate meetings, trainings, and workshops incl. agendas and materials.
• Prepare first drafts of presentations, documents, communications, and meeting materials.
• Maintain accurate project information, schedules, and records.
• Handle sensitive information with professionalism and discretion.
• Adapt to priorities while maintaining accuracy and follow-through.

Skills

Project coordination

Organizational skills

Communication skills

Adaptability

MS Office

Professionalism

2–3 years experience

Tools

Outlook

Word

Excel

PowerPoint

Teams

Job description

Take Charge of Your Career at Interstates

At Interstates, we don’t just show up to work, we show up for each other. From our headquarters in Iowa to job sites across the country, we’re doing award-winning electrical, controls, automation, and OT work that powers industrial facilities for clients here in the U.S. and around the world. Whether you’re bending conduit, wiring panels, writing code, supporting projects, or helping things run behind the scenes, you’ll be part of a crew that works hard, shares laughs, and takes pride in doing quality work. We believe in building strong teams, doing the right thing, and making a difference in the communities where we live. If you want to grow and do meaningful work, you’ll feel at home here.

Interstates is looking for a proactive, organized Administrative Assistant II to help the Organizational Development (OD) team turn plans into coordinated, well-executed work.

Organizational Development helps strengthen how people and teams work, grow, and lead at Interstates. The team supports initiatives that develop employee capabilities, improve organizational effectiveness, and help the company achieve its goals.

This role goes beyond routine administrative support. You’ll coordinate projects and programs, prepare meetings and trainings, develop first drafts of communications and presentations, and track details from planning through follow-up. You’ll work with the OD team to keep priorities visible, action items moving, and materials ready when they’re needed.

What You’ll Do

• Coordinate OD projects and initiatives from planning through follow-up, organizing timelines, next steps, and key details.
• Track deadlines, action items, and dependencies; flag upcoming needs or potential roadblocks.
• Coordinate meetings, trainings, and workshops, including agendas, materials, logistics, notes, and follow-up.
• Prepare first drafts of presentations, documents, communications, and meeting materials for review.
• Maintain accurate project information, schedules, documentation, and records.
• Handle sensitive information with professionalism and discretion.
• Adapt as priorities change while maintaining accuracy and dependable follow-through.

What You’ll Bring

• Strong project coordination and organizational skills, including the ability to manage multiple priorities.
• Initiative and sound judgment; you can get started, ask useful questions, and anticipate next steps.
• Excellent written and verbal communication skills, including the ability to prepare polished drafts and presentations.
• Adaptability, attention to detail, and confidence learning new systems.
• A strong understanding of Microsoft Outlook, Word, Excel, PowerPoint, and Teams
• Professionalism, discretion, and a collaborative approach.
• 2–3 years of administrative, office support, or project coordination experience preferred.

What Success Looks Like

You create clarity and help work move forward. You organize details, communicate timely updates, surface potential issues, and follow through without needing every step spelled out. You’re comfortable coordinating work across people and priorities—and take pride in helping the team deliver on its commitments.

Location, Work Arrangement, Schedule & Travel

Location: Office-based at either the Sioux Center, Iowa, or Sioux Falls, South Dakota, location.

Schedule: Full-time, generally Monday–Friday; hours may vary based on business needs.

Travel: Occasional travel may be required based on business needs, up to 10%.

Benefits of Working at Interstates

• 401(k) retirement plan with company match
• Health, dental, and vision insurance, plus disability and life insurance
• Paid time off and holiday pay
• Company discount program
• Bonus incentives, including year-end incentives and merit increases
• Career coaching and development support
• Advancement opportunities
• Company-sponsored celebrations, holiday events, and community outreach volunteer time
• A family- and safety-focused culture

What You Should Know Before You Apply

Interstates may collect personal information as part of your job application, such as your contact details, work history, education, and any information you provide. This information is used only for recruitment, to evaluate your candidacy, and to meet legal requirements. For details about our privacy practices and your rights under the California Consumer Privacy Act (CCPA), please see our Privacy Policy. By applying, you acknowledge that you have reviewed this notice.

Interstates is an EEO provider and offers a drug-free workplace. Employment at Interstates is at-will and may be terminated at any time with or without notice or cause, except as otherwise provided by law.