Mechanical Engineering Internship - Fall Term

At Mechanize, we are pioneering the development of Reinforcement Learning (RL) environments tailored to train AI models for real-world applications. Our ambition is to facilitate the complete automation of the economy, partnering with leading AI laboratories. Discover more at mechanize.work.As a Software Engineering Intern at Mechanize, you will play a pivotal role in assisting our team to develop these groundbreaking RL environments. If you have a solid command of Python programming and possess a keen intellect, we would love to hear from you.We are currently seeking interns for Winter 2026, Spring 2026, and Summer 2026.No prior experience in machine learning or AI is necessary.Curious about our interview process? Learn more here: https://www.mechanize.work/how-our-interview-process-works/

Astranis builds advanced satellites for high orbits, expanding access to secure and dedicated networks for clients such as large enterprises, governments, and the US military. With five satellites in orbit and more launches ahead, Astranis supports a commercial contract backlog exceeding $1 billion. The company is headquartered in Northern California and employs 450 engineers and entrepreneurs, backed by over $750 million from investors like Andreessen Horowitz, Blackrock, and Fidelity. The Associate Mechanical Engineer - Fall 2026 Program is a twelve-week, salaried role based in San Francisco. This program is designed for candidates who have completed or will complete their bachelor’s degree before joining. The position offers the chance to work on projects that match the complexity and impact of those assigned to full-time engineers. Role overview Work alongside the engineering team to design, build, and test satellite hardware or software. What you will do Associate Engineers at Astranis contribute directly to challenging engineering projects. Past participants have designed and tested hardware or software for the company’s first satellite. Many have continued on to full-time roles. This program emphasizes hands-on experience and meaningful project ownership. Requirements Bachelor’s degree completed or expected before the program start date Interest in satellite hardware or software engineering Note: Current college students should consider applying for the Astranis Internship program instead.

Astranis develops advanced satellites for high-orbit missions, supporting secure networks for clients ranging from large enterprises to governments and the US military. With five satellites launched and more in development, Astranis manages a commercial contract backlog of over $1 billion. The company has raised more than $750 million from leading investors, including Andreessen Horowitz, Blackrock, and Fidelity. The team of 450 engineers and entrepreneurs operates from a 153,000 sq. ft. headquarters in Northern California. Internship Overview The Mechanical Engineering Internship for Fall 2026 is a twelve-week, hourly position designed for students enrolled in a four-year university program. Interns join the engineering team to work on substantial, hands-on projects that impact Astranis satellites directly. Many past interns have contributed to hardware and software for the company’s first satellite, with several moving on to full-time roles at Astranis. Recent graduates are encouraged to apply for Associate Engineer positions instead. What You Will Do Work closely with engineers to design, build, and test satellite hardware and software. Design, evaluate, procure, assemble, and test structures, mechanisms, and bracketry for spacecraft, using a variety of manufacturing methods for both composite and metallic parts. Perform mechanical and thermal analyses on spacecraft systems. Integrate components and systems into spacecraft, collaborate on documentation, and help improve build processes for future projects.

Join aisafety as a Research Engineer Intern for the Fall 2026 term! This internship is an excellent opportunity to gain hands-on experience in the field of safety engineering, where you will collaborate with seasoned professionals on innovative projects. You will be involved in research and development activities, contributing to advancements in safety solutions.

About the Mechanical Engineering Summer Internship Syska Hennessy Group, a leader in consulting, engineering, and commissioning services, is hiring a Mechanical Engineering Summer Intern in San Francisco. The team works on MEP, information and communication technology, architectural lighting, vertical transportation, and commissioning projects around the world. What to Expect Interns join a collaborative environment focused on learning and professional growth. The program includes support from experienced engineers, a diverse team, flexible schedules, and opportunities to connect at social events. Compensation is competitive. What You Will Do Work with engineers to prepare design documentation Create AutoCAD and Revit drawings for mechanical systems Assist with design calculations and help size mechanical systems for buildings Support engineers during field investigations and construction site visits Join educational lunch-and-learn sessions designed for interns

At Mechanize, we specialize in developing reinforcement learning (RL) environments that empower AI models to execute real-world tasks efficiently. Our mission is to drive the complete automation of the economy, providing innovative solutions to leading AI laboratories. Discover more about our work at mechanize.work.As a Senior Software Engineer at Mechanize, you will contribute to the creation of RL environments that are pivotal in the field of AI model training. Ideal candidates will have 2-5 years of software engineering experience with proficiency in Python programming. Previous experience in machine learning or AI is not a prerequisite.For insights on our interview process, visit: Interview Process at Mechanize.

Join mechanize as a Senior Software Engineer, where you'll contribute to innovative software solutions that shape the future of technology. In this role, you will lead projects, mentor junior developers, and collaborate with cross-functional teams to deliver high-quality software products. Your expertise will drive architectural decisions and enhance our development processes.

Join Notion Labs Inc. as a Software Engineer Intern for the Fall 2026 semester! This is an exciting opportunity to work in a dynamic environment where you will contribute to innovative projects and gain hands-on experience with cutting-edge technologies.As an intern, you will collaborate with our talented engineering team to develop and improve our software solutions. You'll have the chance to enhance your skills in programming, problem-solving, and teamwork while making a real impact in our organization.

Pinterest’s Advanced Technology Group is looking for a Machine Learning Intern at the master’s level for Fall 2026. This internship centers on visual search and recommendation systems, blending research and engineering in a collaborative environment. Interns may help launch new features for millions of users or take part in academic research projects. Role overview This 12-week paid internship runs from September 21 to December 11, 2026. Work may be remote or hybrid, with office locations available in San Francisco, Palo Alto, Seattle, or New York. Team placement determines whether the role is remote or hybrid. What you will do Build and launch new user features using internal datasets and machine learning techniques. Conduct research focused on visual understanding and recommendation systems. Work closely with engineering teams and take part in external collaborations or mentoring. Contribute to features that may reach millions of users or support research for academic publication. Locations San Francisco, CA Palo Alto, CA Seattle, WA New York, NY Remote (team dependent) Internship details 12-week program: September 21 to December 11, 2026 Paid internship Remote or hybrid work (based on team) Application note Applying to this position enters candidates into consideration for multiple machine learning internship roles across Pinterest’s ML teams. Submit only one application within the USA or Canada; multiple applications may delay review.

About Atomic SemiAtomic Semi is pioneering the development of a compact and rapid semiconductor fabrication facility.Utilizing current technology and innovative simplifications, we aim to construct tools in-house to facilitate swift iterations and enhancements.Our team consists of a select group of outstanding, hands-on engineers specializing in mechanical, electrical, hardware, computer, and process engineering. We take ownership of the entire stack, from atoms to architecture. With an optimistic outlook on technology's future, we are committed to pushing its boundaries.We believe smaller, faster, and self-built solutions are superior.Our lab is equipped with 3D printers, a diverse range of microscopes, e-beam writers, and general fabrication equipment. If we lack any tool, we invent it!Founded by Sam Zeloof and Jim Keller, Atomic Semi is led by visionaries with a rich history in semiconductor innovation.About the RoleWe are seeking enthusiastic Semiconductor Packaging Engineering Interns for the upcoming fall term, starting in September, with a preferred commitment of 4 to 8 months. As part of a small team, you will engage in comprehensive process development and integration for semiconductor packaging, providing you with unique, hands-on experience that is rare in larger organizations. You will actively participate in the research and development of new packaging technologies, including mechanical prototyping, experiment design, and data analysis. We provide training on our tools, allowing you to use them independently, including 3D printing, metal plating, laser cutting, and metrology.Our mantra is to achieve rapid prototyping and testing, aiming for completion within days or weeks rather than months. As part of the application process, a portfolio showcasing your built projects is required. If you have successfully delivered a medium-to-high complexity system through personal projects or previous internships, you would thrive in our environment.

At Mechanize, we are on a mission to revolutionize the economy through the automation of real-world tasks. We specialize in building reinforcement learning (RL) environments designed to enhance AI models, enabling them to tackle complex challenges. Our innovative solutions are trusted by leading AI laboratories. Discover more about our work at mechanize.work.As a Junior Software Engineer at Mechanize, you will play a key role in developing RL environments that cater to the needs of the top AI labs. This position is ideal for individuals who are nearing graduation or have 0-2 years of experience in software engineering, and possess proficiency in Python programming.Prior experience in machine learning or AI is not a requirement.Curious about our interview process? Learn more about it here.

Join Handshake as a Student Researcher for the Fall 2026 semester! This exciting role offers you the chance to contribute to innovative research projects while gaining valuable experience in a dynamic environment. As a Student Researcher, you will work closely with leading professionals, enhance your analytical skills, and immerse yourself in real-world applications of your studies.

Join Sierra as an Intern in Agent Development for the Fall 2026 semester! This is an exciting opportunity to gain hands-on experience in a dynamic and innovative environment. As an intern, you will collaborate with our talented team to support various projects aimed at enhancing agent performance and development strategies.

About Atomic SemiAtomic Semi is at the forefront of semiconductor innovation, creating a compact and agile semiconductor fabrication facility.Leveraging current technologies and simplifying processes, we are dedicated to building our own tools to facilitate rapid iterations and enhancements.Our team comprises exceptional hands-on engineers with diverse expertise in mechanical, electrical, hardware, computer, and process engineering. Together, we aim to redefine the technology landscape from atoms to architecture.We are driven by the belief that smaller, faster, and self-built solutions are superior.Our lab is equipped with advanced 3D printers, various microscopes, e-beam writers, and general fabrication tools - and we are always ready to invent what's missing.Founded by Sam Zeloof and Jim Keller, Atomic Semi combines a passion for innovation with decades of industry experience.About the RoleWe are seeking motivated Electrical Engineering Interns for the upcoming fall term, commencing in September, with an ideal commitment of 4 to 8 months. As we reconstruct the chip fabrication process, you will engage in groundbreaking work.You will collaborate with fellow engineers to design and improve lithography systems, deposition tools, vacuum chambers, precision motion controls, plasma etching systems, and related technologies. Your responsibilities will include problem identification, prototyping solutions, and productionizing your innovations to transform IC manufacturing.Our approach emphasizes building and testing within days or weeks rather than months. To apply, please submit a portfolio showcasing your tangible projects. If you have successfully delivered a medium-to-high complexity system through a personal project or prior internship, you will thrive in our environment.

Role overview AECOM is hiring a Senior Mechanical Engineer in San Francisco. This role leads project work and collaborates with teams across disciplines. The focus: designing, developing, and implementing mechanical systems that support efficiency and sustainability goals.

ABOUT PAX At PAX, we are dedicated to transforming lives through outstanding consumer experiences. Our commitment to innovation, scientifically-backed quality, and award-winning design has established us as a leader in the industry for nearly two decades. Millions trust our high-performance products, which are crafted for precision, purity, and consistency. Our culture revolves around prioritizing people, making impactful contributions together, and enjoying the journey. We believe that exceptional products, a fulfilling employee experience, and robust operational rhythms are interconnected. PAX has garnered accolades for its brand, culture, and products from esteemed publications, including The New York Times’ Wirecutter, TIME, Fast Company, GQ, Gear Patrol, mg Magazine, and High Times. Furthermore, we are proud to be certified Plastic Negative across all product lines by rePurpose Global, ensuring that we remove twice as much plastic from nature as we use in our products. ROLE OVERVIEW As a Senior Mechanical Engineer reporting to the Director of Mechanical Engineering, you will spearhead the design of innovative, cost-effective, and reliable products that meet delivery schedules. You will also troubleshoot and enhance existing products while collaborating closely with engineering colleagues to devise optimal solutions for complex design, structural, thermal, and battery life challenges. Proficiency in sketching and prototyping new concepts, along with familiarity with engineering best practices, will be essential. You may also guide and oversee the work of junior team members. Our products are celebrated for their exquisite design, high quality, and reliability. Our Mechanical Engineers play a vital role in shaping the architecture and detailed design of all our products, working in tandem with the Hardware team to realize the product vision. This role is pivotal in leading the development of future innovations. Key Responsibilities: Collaborate with cross-functional teams to develop high-quality products that exceed customer expectations. Partner with Industrial Design to evaluate product features for manufacturability and recommend efficient processes and equipment. Lead the development of mechanical product architectures, assemblies/modules, parts, and accessories. Design detailed mechanical components, including complex assemblies and sub-systems. Conduct feasibility studies to ensure designs meet mechanical robustness, scheduling, and cost targets. Oversee both internal and external prototyping efforts. Facilitate design reviews and promote engineering best practices.

About Mariana Minerals Mariana Minerals is a software-focused minerals company based in San Francisco. The team delivers essential minerals that support energy, artificial intelligence, and defense technologies. By combining industry expertise with advanced software, automation, and data-driven methods, Mariana Minerals aims to transform the minerals supply chain. Mechanical Engineering Intern – Role Overview The Mechanical Engineering Intern will join the Pilot Plant Operations team at the San Francisco headquarters. This role centers on hands-on work: designing, improving, and optimizing benchtop pilot plant equipment. Interns collaborate with seasoned engineers and domain experts, gaining practical experience that goes well beyond typical support tasks. What You Will Do Create 3D models, layout drawings, and technical documentation for laboratory and pilot plant equipment. Build, test, and refine mechanical solutions to improve equipment performance, reduce downtime, control costs, and support health and safety. Work with engineering, management, and software teams to develop programs and applications that advance Mariana Minerals’ operations. Partner with colleagues from engineering, operations, and controls engineering to reach project objectives. Share your findings and experiences in a final presentation at the end of the internship. Desired Qualifications Currently enrolled in or recently graduated from a mechanical engineering or related degree program. Solid grasp of mechanical design documentation, including equipment specifications, layout drawings, piping diagrams, and CAD models. Hands-on experience designing or supporting industrial equipment such as pumps, piping systems, reactors, separators, filtration systems, or material handling equipment. Ability to design mechanical solutions independently, troubleshoot issues, and analyze complex data sets. Strong technical writing, communication, and teamwork skills. Comfortable adapting to changing priorities and managing multiple tasks in a busy environment. Why Mariana Minerals? Interns at Mariana Minerals join a mission-driven group focused on reshaping the future of critical minerals supply.

About Atomic SemiAtomic Semi is at the forefront of semiconductor innovation, creating a compact and efficient fabrication environment that leverages cutting-edge technology.We are committed to building our own tools to facilitate rapid iterations and enhancements to our processes.Our elite team of engineers, specializing in mechanical, electrical, hardware, computing, and process engineering, is dedicated to pushing the boundaries of technology from atoms to architecture.We believe smaller, faster, and self-built systems represent the future.Equipped with advanced 3D printers, microscopes, e-beam writers, and a variety of fabrication tools, we’re prepared to invent solutions as we encounter challenges.Founded by renowned semiconductor experts Sam Zeloof and Jim Keller, Atomic Semi combines years of industry experience with a passion for innovation.About the RoleWe are seeking enthusiastic Process Engineering Interns for the fall term, starting in September. This internship is designed for a duration of 4 to 8 months, providing you with a unique opportunity to engage in groundbreaking work as we re-engineer the chip fabrication process from the ground up.This hands-on role will have you involved in the design and execution of experiments related to novel semiconductor and thin-film fabrication techniques. We are looking for candidates with a solid understanding of traditional semiconductor processing methods and an eagerness to explore innovative techniques.This position offers a high level of ownership and autonomy in a dynamic startup environment, allowing you to contribute meaningfully to novel R&D processes and influence equipment design. Candidates should possess hands-on cleanroom experience and a proven track record of developing nanofabrication recipes across multiple process stages.

Join The Bot Company as a Mechanical EngineerAt The Bot Company, we are on a mission to create an innovative robot designed to enhance everyday life in homes around the world.Based in the vibrant city of San Francisco, our compact team of engineers, designers, and operators comes from esteemed organizations such as Tesla, Cruise, OpenAI, Google, and Pixar. With a proven track record of delivering products to hundreds of millions of users, we know how to craft exceptional products and experiences.Our streamlined team structure fosters quick decision-making and eliminates unnecessary bureaucracy. Every team member is a contributor with significant scope, ownership, and accountability, working collaboratively across multiple domains to drive rapid iteration and execution.Candidate ExpectationsIn all roles at The Bot Company, we seek candidates who display remarkable sharpness and the capacity to thrive in fast-paced, high-pressure environments. Candidates should demonstrate:Exceptional mental acuity: Quick thinkers who learn swiftly and can reason across diverse domains.Engineering curiosity: A natural inclination to explore and understand how systems function, even beyond one’s specialty.High performance mindset: The ability to excel amidst ambiguity and high demands.Role Overview: Mechanical EngineerAs a Mechanical Engineer, you will be responsible for designing the mechanical systems, structures, and mechanisms that bring our robots to life. This position is ideal for individuals with exceptional mechanical intuition, rapid prototyping skills, and a history of delivering reliable hardware at scale.