Internships in Sioux Falls, South Dakota, United States

Houston Engineering Inc. (HEI) in Sioux Falls, South Dakota, fosters the next generation of engineers through hands-on mentorship and meaningful local projects. As a Civil Engineer Intern, you will split time between outdoor construction-phase field work and in-office projects assisting engineers, including operating GPS and Total Station instruments, updating AutoCAD Civil 3D redlines, documenting construction activities, and supporting research, development, and design.

The Intern, Financial Planning supports staff in servicing high net worth and ultra high net worth clients through holistic financial planning and client relationship support in Sioux Falls, South Dakota, United States. Day-to-day work includes assisting with client onboarding paperwork, scheduling meetings, preparing engaging materials, observing client meetings, handling follow-up documentation and research, supporting account maintenance and money movement, and using financial planning and CR

Daktronics Manufacturing Process Engineer Co-op Interns serve as a liaison between Manufacturing and Engineering in Sioux Falls, SD, working on projects involving digital LED display technology and audio systems. Day-to-day work includes developing and improving manufacturing processes aligned with lean manufacturing concepts, coordinating with Engineering on product changes, overseeing ECO implementations, assisting with prototype cabinet and workstation construction, developing tooling concept

We’re looking for a Data Analyst Intern - (Spring 2027) to join our team as and help turn data into insights that drive better decisions. This opportunity is ideal for a student who enjoys working with data, uncovering patterns, and solving problems.

American Engineering Testing (AET) delivers testing, analysis, and design to reduce uncertainty in construction projects. As a Civil Engineering Intern you will assist engineers with field and lab testing of soils, concrete, and aggregates, and support project teams on construction sites.

Ulteig is currently seeking a Substation Electrical Engineering Interns to join our Substation Department for Summer 2027. This internship is ideal for a motivated individual looking to expand their technical and communication skills while contributing to impactful projects in the utility and renewable power markets.

The Legal Intern may assist with strategic regulatory policy advocacy and serve as a contributor on business and legal strategy, facilitating and influencing optimal outcomes for the company arising from federal and state-level regulatory policy affecting the biofuels industry. This is an onsite position in Sioux Falls, SD .

Ulteig is currently seeking CADD Technician Interns to join our Substation Department for Summer 2027. This internship offers a unique opportunity for a detail-oriented and motivated individual to build drafting skills, gain real-world experience, and support project success through the development of high-quality construction drawings.

Great Place Construction (GPC) is a private firm specializing in commercial building projects, seeking Construction Interns in Sioux Falls, SD to gain experience across all aspects of the construction industry. Interns split time between field and office in a hybrid model, assisting superintendents and project managers with scheduling, subcontractor communication, project management platform interfaces, and estimating or project management training.

At POET Research Inc., our vision is to discover and deliver a robust portfolio of high value process and product innovations that utilize renewable resources as effectively as possible. The Research Intern will work on various laboratory research and/or pilot scale projects to drive improvement in POET’s technology.

The DCIM Technical Intern role at Sunbird Software offers a hands-on, project-based opportunity for students to contribute to Data Center Infrastructure Management (DCIM) solutions and enterprise software initiatives. Interns work on varied projects across departments—such as software testing, technical documentation, data analysis, and process improvement—while collaborating with experienced professionals and presenting findings to management.

Diesel Program Intern at GES provides hands‑on experience in diesel equipment repair and maintenance. The role involves learning dealer‑supported product lines, service standards, and procedures while assisting in field repairs and maintenance under supervision.

We are the leading provider of professional services to the middle market globally, our purpose is to instill confidence in a world of change, empowering our clients and people to realize their full potential. Our exceptional people are the key to our unrivaled, culture and talent experience and our ability to be compelling to our clients.

The DCIM Intern at Sunbird Software in Sioux Falls, SD is a hands-on, project-based internship supporting the Data Center Infrastructure Management (DCIM) solutions team. Interns contribute to a variety of projects based on their educational background, technical skills, interests, and organizational needs, assisting with research, documentation, data analysis, testing, and process improvement while collaborating with team members across multiple departments.

Northwestern Mutual's College Financial Representative Internship Program in Sioux Falls, SD, provides guidance and a framework for building an integrated financial planning practice from the ground up. Interns prospect and network, develop business strategies, call on potential clients, prepare financial plans, and engage in weekly coaching and training while working a flexible schedule around classes.

Accounting Internship Program at Brady Martz offers students hands‑on exposure to audit, strategic business solutions, and tax service lines. Interns assist with tax return preparation, audit and accounting engagements, and day‑to‑day client needs such as financial statements and payroll reporting.