
At POET, it is our mission to be good stewards of the Earth by converting renewable resources to energy and other valuable goods as effectively as humanly possible. For over thirty-five years, our drive and passion to change the world has enabled us to become the largest producer and marketer of bioethanol and a leader in sustainable products in the world.
We’re all on the same team. We always communicate. And we park our egos at the door. These aren’t just slogans on our walls. It’s the way we do things at POET. We provide an environment for team members to maintain a healthy work-life balance. It’s the best way to optimize health, wellness, and productivity in a sustainable way. We work hard. We play hard. We have frequent team events, volunteer efforts, and we know how to celebrate wins!
POET Design & Construction (PDC) supports the POET mission by providing high quality, timely and cost-conscious engineering, procurement and construction services. We provide this support through value-added design and technology innovation from a knowledgeable, hard-working staff. We work closely as a multi-disciplinary team, in a dynamic, fast-paced, ever-changing environment delivering the best product in the industry.
The Mechanical Engineering Intern will assist the Mechanical Engineering team with design, implementation, and specification of plant process systems and associated tasks. The Mechanical Engineering Intern will work under close guidance of the Mechanical Engineers to complete assignments and develop knowledge and skills.
This is an on-site role located at POET’s corporate headquarters in Sioux Falls, SD. Responsibilities include:
The POET Never Satisfied Internship openings are for Summer 2027. We post Internships in early September with the intention of having interns selected by November 1st.
At POET, we encourage internal development and growth by allowing team members to carve their own path to success. Leaders support team members with the necessary resources to develop their skills, achieve goals, and create the most value. We believe in developing our team members to their highest potential and recognizing contributions that add value to the organization. Each new team member’s position and compensation are carefully determined by considering their unique qualifications and skillset.
POET is an Equal Opportunity Employer committed to maintaining a workplace free from discrimination and harassment. Employment decisions are based on qualifications, abilities, merit, and other legitimate business factors, without regard to any legally protected characteristic. This policy applies to all aspects of employment, including recruitment, hiring, compensation, benefits, working conditions, promotion, and termination.

POET’s vision is to create a world in sync with nature. As the world’s largest producer of biofuel and a global leader in sustainable bioproducts, POET creates plant-based alternatives to fossil fuels that unleash the regenerative power of agriculture and cultivate opportunities for America’s farm families. Founded in 1987 and headquartered in Sioux Falls, POET operates 34 bioprocessing facilities across eight states and employs more than 2,400 team members. With a suite of bioproducts that includes high-quality animal feed, corn oil, green asphalt rejuvenator, purified alcohol, and renewable CO2, POET nurtures an unceasing commitment to innovation and advances powerful, practical solutions to some of the world’s most pressing challenges. Today, POET holds more than 140 patents worldwide and continues to break new ground in biotechnology, yielding lower-carbon, more efficient renewable energy and bioproducts.