Engineering Office Manager

Interstate Engineering; Williston (ND); On-site; USD 120,000 - 180,000; Full time

Job summary

Interstate Engineering in Williston, ND seeks an experienced leader to guide the Williston office's operations, project delivery, and client relationships. This is more than an office manager role; it's about shaping infrastructure and community impact across western North Dakota.

You will supervise administrative staff, coordinate with engineers and project managers, contribute to business development, and oversee budgeting and daily operations to support growth and community-focused projects.

Qualifications

• Bachelor’s degree in civil engineering, construction management, business administration, or a related field.
• PE license preferred (or ability to obtain licensure within six months)
• 10+ years of experience in engineering, construction, or professional services with progressive responsibility in operations, project coordination, or office leadership.
• Experience working with engineering/technical teams, supporting project delivery and client coordination.
• Proven ability to lead teams, manage priorities, and support a high-performing work environment.
• Experience with budgeting, forecasting, accounts payable/receivable, or project financial tracking.
• Strong understanding of project-based workflows, including proposals, contracts, scheduling, and deliverables.
• Excellent communication skills with clients, technical staff, and leadership.
• Highly organized and detail-oriented; able to manage multiple priorities in a fast-paced environment.
• Proficiency in Microsoft Office and familiarity with related software systems.
• Ability to think strategically and improve processes; valid driver’s license and willingness to travel.

Responsibilities

• Coordinate project priorities and workflows with engineers, survey managers, and project managers to support successful project delivery.
• Lead administrative staff and foster a collaborative, high-performing team environment.
• Support recruitment, onboarding, and staff development for office growth.
• Build and maintain strong client relationships and support PMs in delivering high-quality service.
• Collaborate with marketing and funding teams to support proposals and community initiatives.
• Assist in budgeting, financial tracking, and forecasting to align office operations with goals.
• Oversee accounts payable/receivable and other financial processes for office performance.
• Identify opportunities to improve operational efficiency and reduce costs.

Skills

Leadership

Project coordination

Client coordination

Budgeting

Communication

Organization

Strategic thinking

MS Office

Travel

Education

Bachelor’s degree or higher in civil engineering / related field

Tools

MS Office Suite

Project management software

Job description

Job Description & Requirements

Interstate Engineering is looking for a leader who wants to do more than manage an office. We’re looking for someone who wants to make an impact! If you're an experienced leader who is looking to guide the operations and continued growth of our Williston office while supporting projects that serve communities across western North Dakota, this is the role for you! An office manager at Interstate Engineering offers a unique opportunity for a Professional Engineer (PE) or experienced operations leader to combine technical insight with office leadership overseeing daily operations, supporting project delivery, and strengthening client relationships. From municipal infrastructure to rural community development, the work you support will have a direct and lasting impact. If you're someone who brings strong leadership, a collaborative mindset, and a commitment to both team success and community-focused solutions, join our team!

Why Williston?

Williston offers a unique blend of opportunity, community, and quality of life that’s hard to find elsewhere. As one of the fastest-growing regions in North Dakota, it continues to evolve creating meaningful opportunities to shape infrastructure, support local communities, and be part of long-term growth. At Interstate Engineering, our work in and around Williston goes beyond individual projects. We partner with cities, counties, and rural communities to deliver solutions that make a lasting impact from improving roads and utilities to supporting community development and growth. Here, you’ll see the direct results of your work in the places people live, work, and raise their families. Beyond the work itself, Williston offers a strong sense of community, access to the outdoors, and a pace of life that allows you to build both a career and a life you’re proud of. If you’re looking for a place where you can lead, grow, and make a difference, Williston delivers.

Key Responsibilities

Project & Technical Coordination

• Coordinate project priorities and workflows in collaboration with engineers, survey managers, and project managers to support successful project delivery.
• Support project teams by ensuring resources, timelines, and communication are aligned across disciplines.
• Assist in proposal preparation, client coordination, and project documentation to support business development and project execution.
• Partner with technical staff to improve processes that enhance efficiency, quality, and consistency in project delivery.

Leadership & Team Development

• Lead and support administrative staff, fostering a collaborative, high-performing team environment that supports engineering and project teams.
• Work closely with engineers and technical staff to ensure operational support aligns with project needs and client expectations.
• Support recruitment, onboarding, and development of staff to strengthen the office’s capabilities and long-term growth.

Client & Community Engagement

• Build and maintain strong relationships with clients, supporting Project Managers in delivering responsive, high-quality service.
• Contribute to community engagement efforts and support projects that impact both urban and rural communities across the region.
• Collaborate with marketing and funding teams to support proposals, funding applications, and community initiatives.

Financial & Operational Leadership

• Support budgeting, financial tracking, and forecasting to align office operations with project and business goals.
• Oversee accounts payable/receivable and financial processes to support project and office performance.
• Identify opportunities to improve operational efficiency, reduce costs, and support long-term office growth.

Office Operations

• Oversee daily office operations, vendor relationships, and administrative processes to ensure a well-functioning and productive work environment.
• Maintain compliance with company policies and support coordination with HR and accounting teams.

Qualifications:

• Bachelor’s degree in civil engineering, construction management, business administration, or a related field required.
• Professional Engineer (PE) license preferred(or ability to obtain licensure within six months) candidates with a strong background in engineering, construction, or project-based professional services will also be considered.
• 10+ years of experience in engineering, construction, or professional services environments, with progressive responsibility in operations, project coordination, or office leadership.
• Demonstrated experience working alongside engineering or technical teams, supporting project delivery, client coordination, and cross-functional collaboration.
• Proven ability to lead teams, manage priorities, and support a positive, high-performing work environment.
• Experience with financial management, including budgeting, forecasting, accounts payable/receivable, or project financial tracking.
• Strong understanding of project-based workflows, including proposals, contracts, scheduling, and deliverables.
• Excellent communication skills, with the ability to interact effectively with clients, technical staff, and leadership.
• Highly organized and detail-oriented, with the ability to manage multiple priorities in a fast-paced environment.
• Proficiency in Microsoft Office Suite and familiarity with project management, accounting, or engineering-related software systems.
• Ability to think strategically, solve problems, and identify opportunities to improve processes and support office growth.
• Valid driver’s license and ability to travel as needed for client meetings, project coordination, or regional collaboration.