Haleon is offering a Summer Internship in Engineering, providing an opportunity to work on projects and maintain the facility while adhering to Environmental Health & Safety Department and Quality compliance requirements. This role involves a rotation in project management, project engineering, automation, and process engineering, with potential opportunities in cleaning validation. The intern will assist in creating and implementing projects, ensuring quality and timeliness, and may also support in areas such as process safety engineering and facility risk assessments.

2025 Summer Intern: Engineering Internship

Engineering Intern

Haleon is offering a Summer Internship in Engineering, providing an opportunity to work on projects and maintain the facility while adhering to Environmental Health & Safety Department and Quality compliance requirements. This role involves a rotation in project management, project engineering, automation, and process engineering, with potential opportunities in cleaning validation. The intern will assist in implementing projects, ensuring quality and timeliness of project results, and interact efficiently with peers and management.

The Software Engineer Intern at Workiva will implement developer tools or product features under the guidance of a senior developer, working within an agile development methodology. This role involves conducting code reviews, unit tests, and managing job assignments and status updates using internal tools. The position offers a unique opportunity for learning and development through additional internship seasons.

2025 SUMMER INTERN - SOFTWARE ENGINEER

Software Engineer Intern

The Engineering Intern at Hubbell Power Systems will support the development of Printed Circuit Board Assemblies (PCBA) for high volume electronic products in the Automated Metering Infrastructure (AMI) industry. This role involves contributing to the development of documentation and PCBA deliverables from concept to production launch, assisting in PCBA bring up for prototypes and new designs, and data capture for RF Simulation of PCBAs and associated antennas.

Olsson's Traffic/Technology team offers an Engineering Internship focused on innovative solutions for traffic management, signal systems, and Intelligent Transportation Systems (ITS). Interns will perform hands-on, real-world work using CAD software for plan creation, traffic design, and the opportunity to be involved in traffic operations, signal timings, safety studies, and pedestrian circulation studies. This role provides a transformative experience for engineering students, contributing to community improvement.

Engineering Internship - Traffic/Technology

The Data Engineer Intern at Workiva will be part of a collaborative team, contributing to the development of distributed services to support multiple data analytics teams and business intelligence engineers. This role involves building reliable and easy-to-use systems for data ingestion and processing, assisting in deploying integration and production code, and ensuring the delivery of value to business partners.

2025 SUMMER INTERN - DATA ENGINEERING

Data Engineer Intern

As a Consultant Engineer Intern at FM, you will have the opportunity to influence outcomes and make a difference in the future by applying your engineering knowledge to real-world situations. This role involves a variety of tasks including field visits, office work, and special projects, providing a comprehensive learning experience in risk management and property insurance solutions. You will gain practical engineering knowledge, participate in training, and experience the company's unique business model through shadowing and hands-on site assessments.

Consultant Engineer Intern

Nestlé Purina is offering a paid Engineering Internship program for summer 2025, designed to develop future professionals for the capital projects execution team. Interns will be involved in specific projects, initiatives, and teams aimed at bringing new capabilities to pet food manufacturing facilities. The program includes exposure to a wide range of manufacturing processes, project management, and opportunities to visit manufacturing facilities and vendor sites. This is an on-site program in St. Louis, MO, with temporary relocation and housing provided.

Engineering Internship

FlightAware, part of the Connected Aviation Solutions unit of Collins Aerospace, is seeking software engineering interns for Summer 2025. Interns will be full team members within a highly collaborative, ambitious, and future-reaching organization, focusing on engineering software that provides businesses actionable aviation data and enables family and friends to track their loved ones. Interns will work on projects to learn the fundamentals of the software development lifecycle, develop innovative technology, and collaborate with top technical minds in the aviation industry.

FlightAware - Software Engineering Intern, Summer 2025 (Remote)

Software Engineering Intern

McCarthy Building Companies' Project Engineer Internship offers a hands-on opportunity for students to learn about a career in construction. Interns are assigned to active projects within their geographic region, gaining exposure to the building process and applying their engineering and leadership skills to real-world situations. The internship includes tasks such as assisting with contract administration, coordinating construction scheduling, and participating in project coordination meetings.

Intern Advantage Program - Central Region - 2025

Project Engineer Intern

The Engineer I at Marriott St. Louis Grand is responsible for responding to guest repair requests, performing preventive maintenance on various equipment, and ensuring the upkeep of maintenance inventory. This role involves a wide range of tasks including electrical, mechanical, plumbing, and carpentry work, as well as general building maintenance. The position requires a high school diploma or equivalent, with some experience in general maintenance and surface preparation preferred. No supervisory experience is required.

Engineer I

As a Mechanical Engineering Intern at Jacobs in St Louis, MO, you will play a crucial role in solving real-life challenges and impacting the world around you. You will support teams on critical projects, gain exposure to project coordination, relevant computer-assisted engineering software, data collection, and more. This role offers the opportunity to work alongside professional engineers and designers, fostering a culture of continuous learning and inclusion while paving the way for your career.

Mechanical Engineering Intern - Summer 2025

Mechanical Engineering Intern

The Machine Learning Engineering Intern at Workiva will act as part of a collaborative team within the Data Management and Analytics organization, focusing on supporting the development, deployment, and monitoring of machine learning models. This role involves participating in various stages of the machine learning lifecycle, including discovery, requirements gathering, prototyping, and code reviews, under the guidance of a full-time Machine Learning Engineer.

2025 SUMMER INTERN - MACHINE LEARNING ENGINEERING

Machine Learning Engineering Intern

Burns & McDonnell is seeking a Mechanical Engineering Intern responsible for performing tasks requiring the application of standard engineering techniques and procedures. This includes standard design of engineering systems, correcting and updating designs, assisting lead engineers with various project duties, and other duties as assigned. The internship is available in various market segments, including Global Facilities and Power, with responsibilities varying depending on the market.

Mechanical Engineering Intern (St. Louis)

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Engineering Intern Jobs in Florissant, MO Hiring Now

2025 Summer Intern: Engineering Internship

2025 Summer Intern: Engineering Internship

2025 SUMMER INTERN - SOFTWARE ENGINEER