Marketing Proposal Intern

MortensonMortensonRobbinsdale, Minnesota, United States
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Posted

8/10/2026

Employment

Intern

Range

$18 - $18/hr

Work style

On-site

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AI summary

Core responsibilities

The intern will assist the sales and marketing team by conducting research, coordinating with cross-functional teams, and preparing compelling proposals. They will also help maintain proposal tools and resources to ensure quality and consistency across the organization.

Requirements overview

Candidates must be currently pursuing an undergraduate degree in Marketing, Business, Communications, or a related field. Preferred qualifications include previous internship experience, proficiency in Microsoft Office and Adobe Suite, and strong collaboration skills.

Key skills

Proposal developmentResearchCross-functional collaborationData collectionMicrosoft OfficeWordExcelPowerPointInDesignIllustratorAdobe SuiteCommunicationProblem-solvingOrganizationCustomer serviceTime management

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Education requirements

bachelor degree

About Mortenson

Industry

Construction

Employees

6,664

Type

Privately Held

Size

5,001-10,000 employees

Mortenson is a U.S.-based, top-25 builder, developer and provider of energy and engineering services committed to helping organizations move their strategies forward. Mortenson’s broad portfolio of integrated services ensures that its customers’ investments result in high-performing assets. The result is a turnkey partner, fully invested in the business success of its customers. Founded in 1954, Mortenson has operations across North America with offices in Chicago, Denver, Fargo, Iowa City, Milwaukee, Minneapolis, Nashville, Phoenix, Portland, Salt Lake City, San Antonio, Seattle, and Washington, D.C. For additional information, visit www.mortenson.com.

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Job categories

MarketingConstructionEngineeringAdministrativeSales

Description

Marketing Proposal Intern   Join a team that’s passionate about building inspiring spaces and pushing the industry forward in smarter, more innovative ways. As a top builder, developer, and EPC (Engineering, Procurement, and Construction), our expertise spans markets like sports, renewable energy, data centers, healthcare, and more. At Mortenson, we’re grounded in offering meaningful work, real career growth, and a collaborative culture where your ideas and contributions matter.   We’re looking for motivated, adaptable individuals who thrive in fast-paced environments and enjoy working with a diverse range of people. If you’re proactive, curious, and ready to make an impact while growing your career, check out our opportunities!   As an intern, you’ll get hands-on experience right away, working alongside project teams and partners to keep things moving. You’ll help solve real problems, stay organized, communicate across teams, and make an impact from day one while building the foundation for your career.   Responsibilities Mortenson’s Sales & Marketing team is seeking a motivated Proposal Intern to join our team. This internship offers a valuable opportunity to gain hands-on experience in the proposal development process within the Architectural, Engineering, and Construction (AEC) industry. You will work closely with our proposal team, contributing to the preparation and submission of compelling proposals that align with our strategic goals.    Highlights of your time with this Mortenson internship will include: * Conduct research to gather information and insights to support proposal content. * Coordinate with cross-functional teams to collect necessary data and materials. * Help develop and maintain a centralized site to elevate proposal quality and consistency across the organization. * Continuously improve the tools and resources set in place for proposal development. * Support the proposal team with administrative tasks as needed. * Assist in the preparation of proposals, as needed, ensuring accuracy and compliance with customer requirements.   Program Overview: Our summer intern program (May – August 2027) is designed to give you real, hands-on experience from day one, working on meaningful projects that directly impact the business. You’ll gain exposure to innovative work, build professional skills through development opportunities, and be supported by a team that values your growth. Your ideas matter here, and you’ll have the chance to contribute, learn, and make a difference while exploring your career path.   Required Qualifications: Cultivate your skills in your chosen field of study and build your career with Mortenson. We look forward to hearing from you if you: * Currently pursuing an undergraduate, four-year degree in Marketing, Business, Communications, or other related degree   Preferred Qualifications: * Have previous related internship experience * Are currently enrolled as an undergraduate junior * Have experience in Microsoft Office, specifically Word, Excel, and PowerPoint * Have experience in InDesign, Illustrator, and other Adobe Suite programs. * Have a basic understanding of construction and generally accepted business practices * Demonstrate strong collaboration, communication, and problem-solving skills and show initiative and leadership * Showcase a positive and professional attitude and solid customer service skills * Are detail-oriented, organized, and can effectively handle multiple competing priorities   The hourly wage for college Interns starts at $18. Students may be paid higher wages based on their year in school.   Please make note:   * Visa sponsorship is not offered for this position.   * Our postings are typically open a minimum of 5 days and an average of 44 days.     Equal Employment Opportunity  Your uniqueness brings new and creative perspectives to the team. Mortenson is committed to providing equal opportunities of employment (EOE) to all individuals, regardless of your race, religion, gender, national origin, age, veteran status, disability, marital status or any other legally protected category.    Other Items to Note  * Mortenson reserves the right to hire any individual without legal or financial obligation on unwanted solicitations. No agency emails, calls, or solicitations are accepted without a valid agreement.  * Must be currently legally authorized to work in the U.S. without sponsorship for employment visa status (e.g., H1B status, 0-1, TN, CPT, OPT, etc.). We are unable to sponsor or take over sponsorship of an employment Visa at this time. 

Requirements

  • Proposal development
  • Research
  • Cross-functional collaboration
  • Data collection
  • Microsoft Office
  • Word
  • Excel
  • PowerPoint
  • InDesign
  • Illustrator
  • Adobe Suite
  • Communication
  • Problem-solving
  • Organization
  • Customer service
  • Time management

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