As a Mechanical Engineer Intern at MKS Instruments, Inc., you will partner with Engineering and Marketing teams to support a product's development cycle, including design, testing, and project management support. This role involves working closely with mentors and other employees within the department to apply knowledge and grow skills technically and professionally. You will have the opportunity to work on real-world projects that enhance product reliability, optimize processes, and drive innovation in product development.

2025 Summer Mechanical Engineer Intern/Co-op (6 months)

Mechanical Engineer Intern

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

As a Mechanical Engineer at a top company in Anaheim, CA, you will manage the inception through sustainment of above and underground mechanical utilities and various mechanical systems supporting various assets. This role involves acting as the Owner’s Technical Representative on projects from concept through construction, reporting to the Manager of Mechanical, Electrical and Plumbing/Piping (MEP) Engineering with DLR Architecture & Facilities Engineering.

Mechanical Engineer

Visium Resources is seeking a Mechanical Engineer for a contract opportunity in Anaheim, CA, expected to last 18 months. The role involves managing mechanical utilities and systems, acting as Owner's Technical Representative, and coordinating design and construction activities. Responsibilities include developing bid level construction documents, supporting project management, and ensuring compliance with codes and standards.

As a Mechanical Engineer at Revolution Technologies, you will manage the inception through sustainment of above and underground mechanical utilities and various mechanical systems supporting many assets. This role involves acting as Owner’s Technical Representative, supporting and developing bid level construction documents, and collaborating with internal teams to develop, maintain, and enforce design guidelines. The position is onsite in Anaheim, CA, with a duration of 6 months, potentially extending or becoming permanent within the contract.

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 Graduate Engineering Intern at MKS, you will partner with Engineering and Marketing teams to support a product's development cycle, including design, testing, and project management support. This role involves working closely with mentors and other employees within the department to apply knowledge and grow skills technically and professionally. Interns will work on real-world projects to enhance product reliability, optimize processes, and drive innovation in product development.

2025 Summer Graduate/PhD  Mechanical Engineer Intern

Graduate/PhD Mechanical Engineer Intern

Randstad Digital is seeking early to mid-level Mechanical Engineers to join our team supporting a client in the aerospace industry. This remote position supports central time hours and involves converting legacy drawings into NX CAD files, scrutinizing designs for accuracy, analyzing tolerance stack ups, and performing basic hand calculations to ensure legacy designs are still viable in the current use case.

mechanical engineer

We are seeking a Mechanical Engineer to perform design tasks and conduct analysis, including hand calculations and heat transfer and thermal management, in a fast-paced R&D and prototype environment focused on powertrain systems, lubrication systems, drivetrain gears, engines, and engine turbines. The role involves using CATIA v5 for CAD and engineering drawings, engineering analysis using FEA tools, and initially working on legacy programs and systems before moving to new developments.

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 varies depending on the market segments, with opportunities in 1898 & Co., Aviation & Federal, and Global Facilities.

Mechanical Engineering Intern (Brea)

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

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

Anduril Industries is seeking a Mechanical Design Engineer to join their team. The role involves generating conceptual design layouts for new hardware, detailed production drawings, interfacing with fabrication and assembly teams, and managing configuration at the system or subsystem level. The ideal candidate will have experience with mechanical systems from cradle to grave, including structures, mechanisms, fluid systems, and electromechanical systems, and proficiency in 3D CAD software.

MECHANICAL DESIGN ENGINEER

Mechanical Design Engineer

The Civil Engineering Intern at Burns & McDonnell will work collaboratively with teams to support a department, global practice, or regional office, focusing on standard engineering techniques and procedures. This role involves tasks such as standard design of engineering systems, correcting and updating designs, assisting lead engineers, and participating in continuous improvement efforts. The intern will be assigned to the Aviation & Federal group, responsible for program management, master planning, facility design, and operational systems design for commercial aviation and Federal & Military projects.

Civil Engineering Intern - Aviation & Federal, Civil (Brea)

Civil Engineering Intern

The Staff Mechanical Engineer at Acclarent, part of the Johnson & Johnson family, is responsible for developing concepts, designs, and details for products, machines, tools, fixtures, and test methods. This role involves designing new devices, testing prototypes, documenting designs, overseeing validation operations, and managing the transfer of manufacturing technologies from concept to production. The position requires a minimum of a BS in mechanical engineering, biomedical engineering, or a related field, and a minimum of 5 years of engineering work experience, preferably in medical device product lifecycle.

STAFF MECHANICAL ENGINEER

Staff Mechanical Engineer

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Mechanical Engineer Intern Jobs in Irvine, CA Hiring Now

2025 Summer Mechanical Engineer Intern/Co-op (6 months)

2025 SUMMER INTERN - SOFTWARE ENGINEER

Mechanical Engineer

Mechanical Engineer

Mechanical Engineer

2025 SUMMER INTERN - DATA ENGINEERING

2025 Summer Graduate/PhD Mechanical Engineer Intern

mechanical engineer

Mechanical Engineer

Mechanical Engineering Intern (Brea)

2025 SUMMER INTERN - MACHINE LEARNING ENGINEERING

FlightAware - Software Engineering Intern, Summer 2025 (Remote)

MECHANICAL DESIGN ENGINEER

Civil Engineering Intern - Aviation & Federal, Civil (Brea)

STAFF MECHANICAL ENGINEER