Software Engineering Internship at Mechanize | San Francisco

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/

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.

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 our dynamic team at Plaud Technologies as a Mechanical Engineer. We are seeking a highly motivated individual to contribute to innovative engineering solutions. You will be responsible for designing, analyzing, and implementing mechanical systems that enhance our products and services.The ideal candidate will have a strong foundation in mechanical engineering principles, experience with CAD software, and a passion for problem-solving. If you're looking to make a significant impact in a collaborative environment, we want to hear from you!

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.

Astranis is at the forefront of satellite technology, designing and launching advanced satellites that push the boundaries of human exploration into the cosmos. Our spacecraft provide dedicated, secure networks for a diverse range of elite clientele, including large corporations, government entities, and the U.S. military. With five satellites successfully in orbit and an exciting pipeline of launches ahead, we are addressing a robust backlog of over $1 billion in commercial contracts.Astranis has emerged as the go-to partner for satellite communications, meeting the high standards of clients who demand exceptional uptime, data security, network visibility, and tailored solutions. Having secured over $750 million in funding from industry-leading investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 dedicated engineers and entrepreneurs is passionate about revolutionizing satellite technology from our expansive headquarters in Northern California.Mechanical EngineerAs a Mechanical Engineer at Astranis, you will play a pivotal role in the design, evaluation, testing, and assembly of spacecraft components and mechanical systems. A strong problem-solving aptitude, hands-on experience, and a passion for innovative design are essential. Experience with spacecraft, mechanisms, or composites is advantageous but not mandatory.ResponsibilitiesDesign, evaluate, procure, assemble, and test primary structures, bracketry, and mechanisms for Astranis spacecraft. This includes components made from both composite and metallic materials, utilizing various manufacturing processes.Develop specifications for components and systems, including load requirements, interfaces, and functional criteria.Conduct mechanical and thermal analysis for spacecraft systems to ensure optimal performance.Collaborate with team members to integrate components and systems into the spacecraft, while documenting and refining processes to enhance future builds.

Impulse is a San Francisco-based team of engineers, designers, and innovators dedicated to making sustainable choices at home more accessible and appealing. The company focuses on designing high-performance products that support scalable home electrification and blend seamlessly into daily routines. As a VC-backed startup, Impulse is laying the groundwork for lasting change in a pivotal industry and welcomes those who want to help shape its future. Role overview The Mechanical Engineer will work from Impulse’s headquarters in the Design District of San Francisco. This role centers on designing, architecting, and supporting the manufacturing of new products. Collaboration is key: expect to work closely with software developers, product managers, and company leadership. Regular on-site presence is required, though working remotely 1-2 days per week may be possible for the right candidate. What you will do Develop hardware products as part of a growing company with a forward-looking mission. Create durable architectures that shape both current and future product lines. Work with cross-functional teams throughout product definition and development. Build and test functional prototypes to refine designs. Engage in hands-on design and testing of new and experimental technologies. Support ongoing production and improvement efforts, focusing on design and manufacturing processes for both existing and upcoming products. Contribute to bringing production-ready devices to market. Oversee volume manufacturing for a new category of products. Requirements Minimum of 7 years’ experience in mechanical engineering. Demonstrated success developing and launching high-quality products in consumer electronics, automotive, or IoT sectors. Advanced skills in mechanical CAD software, particularly SolidWorks. Strong communication abilities, including explaining complex technical concepts to varied audiences. Location This position is based in the Design District of San Francisco, CA. Regular commuting to the San Francisco HQ is expected. While on-site work is preferred, some remote work (1-2 days per week) may be considered.

Company Overview:At Specter, we are pioneering a groundbreaking software-defined control plane tailored for the physical world. Our mission begins with safeguarding American enterprises by providing them with unparalleled insight into their physical assets.We are developing an interconnected hardware-software ecosystem built on advanced multi-modal wireless mesh sensing technology, significantly reducing the cost and time required to deploy sensors by a factor of 10. Our platform aims to serve as the perception engine for a company’s physical presence, facilitating real-time visibility of perimeters and enabling autonomous operations management.Founded by passionate innovators, Xerxes and Philip, who bring experience from leading organizations like Anduril, Tesla, Uber, and the U.S. Special Forces, we are a rapidly expanding team committed to empowering our partners in the evolving landscape of physical AI and robotics.

About Atomic SemiAtomic Semi is pioneering the development of a compact, high-speed semiconductor fabrication facility.Utilizing current technology and a few strategic simplifications, we are set to construct the tools ourselves to enable rapid iteration and enhancement.Our goal is to assemble a small, elite team of hands-on engineers across various disciplines—mechanical, electrical, hardware, computer, and process engineering—to take ownership of the entire technology stack from atoms to architecture. We are optimistic about the future and committed to pushing the boundaries of what technology can achieve.We believe that smaller, faster, and self-built solutions are the key to advancement.Equipped with state-of-the-art 3D printers, a diverse range of microscopes, e-beam writers, and general fabrication tools, we have the capability to invent anything that might be missing along our journey.Atomic was founded by Sam Zeloof, known for his garage chip-making, and Jim Keller, a seasoned leader in the semiconductor industry for over 40 years.About the RoleAs a Mechanical Engineer at Atomic Semi, your primary responsibilities will include designing, refining, and constructing specialized equipment for semiconductor fabrication.We seek hands-on engineers to tackle diverse challenges, from heavy design tasks to integrating mechanical, optical, and electronic components, as well as automating production processes. Our philosophy is to build and test solutions rapidly—in days or weeks, not months—with a focus on practical solutions that address real production needs.We are hiring across multiple experience levels for various specialized teams:The Positioning Team: This team is dedicated to systems-level engineering, designing, prototyping, and building semiconductor fabrication equipment and subsystems related to lithography, motion, and metrology.The Vacuum Team: This team handles the design, prototyping, validation, and scaling of core semiconductor fabrication equipment, including tool families such as Anneal, Deposition, Etch, and Supporting Infrastructure, with objectives ranging from fundamental design to automation readiness.

Join Kargo as a Mechanical Design Engineer and contribute to innovative projects that shape the future of technology. We are looking for a talented engineer with a passion for mechanics and design, who thrives in a collaborative environment. In this role, you will be responsible for developing high-quality mechanical designs while ensuring adherence to industry standards and best practices.

ABOUT PAX LABSAt PAX, our mission is to elevate consumer experiences through innovative products that honor the plant. For nearly 20 years, we have crafted high-performance devices designed with precision, purity, and reliability, trusted by millions globally.Our company culture prioritizes our people, collaboration, and enjoyment in the workplace. We believe that exceptional products and a fulfilling employee experience are intrinsically linked. PAX has received accolades from leading publications including The New York Times’ Wirecutter, TIME, Fast Company, GQ, and High Times, highlighting our commitment to quality and innovation. We are proud to be certified Plastic Negative by rePurpose Global, ensuring that we remove twice as much plastic from nature as we use in our products.ROLE OVERVIEWAs a Mechanical Engineer reporting to the Director of Mechanical Engineering, you will play a pivotal role in designing innovative components and subassemblies for our new products that are not only cost-effective but also reliable and timely. Your expertise will also extend to troubleshooting and enhancing existing products, collaborating with fellow engineers to devise solutions for complex structural, thermal, illumination, and usability challenges. Proficiency in sketching, prototyping, and familiarity with mechanical engineering principles, product development best practices, and design documentation is essential.Our products are celebrated for their aesthetic appeal, durability, and innovative technology. As a Mechanical Engineer, you will be instrumental in shaping the architecture and design of all our products, working closely with the Hardware team to realize our product vision. This role is fundamental to the future development of PAX products.KEY RESPONSIBILITIES:Engage in the design and development of mechanical product architectures, including assemblies, modules, parts, and accessories.Participate actively in decision-making processes pertaining to mechanical product design and architecture.Conduct structural, tolerance, thermal, and fluid analyses to inform design decisions.Generate detailed 3D and 2D drawings, including specifications that clearly define components and subassemblies.Collaborate with industrial designers to evaluate product details for manufacturability and propose improvements.

Astranis is at the forefront of space innovation, developing state-of-the-art satellites that extend humanity's exploration capabilities into high orbits. Our satellites deliver reliable and secure communication networks to a diverse clientele, including large corporations, government entities, and military organizations. With five satellites currently in orbit and several more on the horizon, we are addressing a substantial backlog of over $1 billion in commercial contracts.As the preferred satellite communications partner for clients with rigorous demands for uptime, data integrity, and customized solutions, Astranis has successfully secured over $750 million in funding from esteemed investors like Andreessen Horowitz, Blackrock, and Fidelity. Our dedicated team of 450 engineers and entrepreneurs works passionately from our expansive 153,000 sq. ft. headquarters in Northern California, USA, to design, build, and operate our cutting-edge satellites.Mechanical Integration EngineerJoin our Mechanical Integration team at Astranis and play a pivotal role in constructing components, subsystems, and complete satellites. Collaborate closely with designers, technicians, and testing teams to shape the future of satellite communication while also having the chance to redefine our manufacturing processes.

Join Bright Machines as a Senior Mechanical Engineer, where you will play a pivotal role in designing and developing innovative automated solutions. Your expertise will contribute to our mission of transforming manufacturing through advanced technology.

About Poseidon Aerospace:Poseidon Aerospace is at the forefront of innovation, specializing in the design and operation of unmanned aircraft for commercial logistics and defense purposes. Our flagship platforms, the Heron seaplane and the Egret STOL aircraft, are engineered to transport up to two tons of payload over distances exceeding a thousand nautical miles. Based in San Francisco, we also have satellite offices in Washington, DC, and Maine, fostering a dynamic work environment focused on cutting-edge aerospace technology.Join Our Team:We invite aspiring engineers with less than a year of full-time, post-graduation experience to apply for our Mechanical Engineer (New Graduate) position. This is an excellent opportunity to launch your career in a thriving industry.Your Role:As a Mechanical Engineer, you will play a pivotal role in designing the structural and mechanical systems essential for the functionality and manufacturability of our composite aircraft. Your responsibilities will encompass CAD design, mechanism development, and finite element analysis, all aimed at creating lightweight and reliable structures suitable for flight and marine environments. This position requires a combination of analytical thinking and hands-on collaboration with our manufacturing, aerodynamics, and testing teams to transition designs from concepts to tangible flight hardware.

About UsEcho Neurotechnologies is an innovative startup pioneering advancements in the Brain-Computer Interface (BCI) sector. Our goal is to create state-of-the-art hardware and AI solutions that empower individuals with disabilities, enhancing their independence and overall quality of life.Our CultureWe invite you to be a part of a small yet passionate team where your expertise will play a crucial role in shaping our future. Being in an early-stage startup, you will have the chance to make impactful decisions while fostering your own professional growth in a collaborative environment.Position SummaryWe are on the lookout for a Senior Mechanical Engineer who will lead the development of our innovative Echo wearable hardware device. The role entails designing, prototyping, and assessing custom hardware solutions, managing manufacturing vendors, and overseeing design verification processes essential for the development of medical devices.Key ResponsibilitiesDesign and prototype mechanical components and assemblies, utilizing rapid prototyping, machining, and injection molding techniques.Create detailed component and assembly drawings, including tolerance stack-ups and analyses.Identify and liaise with manufacturing vendors for component and assembly production.Conduct simulations and analyses (FEA, thermal, etc.) in collaboration with vendors to inform design choices.Develop custom electromechanical systems for testing and characterization of components and assemblies.Plan and implement design verification activities systematically.

About the RoleHinge Health is on the lookout for a talented Mechanical Engineer II to join our dynamic Hardware Engineering team. In this pivotal role, you will contribute significantly to the design and development of our next-generation hardware products. As a mid-level engineer, you will tackle a range of projects, focusing on mechanical designs for advanced medical devices that are highly integrated. You will collaborate across various teams, including electrical, mechanical, and manufacturing, to successfully transition products from concept to production.The ideal candidate is passionate about addressing real-world challenges through hardware innovation—your efforts will directly enhance the lives of millions of our members by alleviating pain and improving their well-being. By joining our Hardware group within the broader R&D organization, you will be part of a highly skilled, motivated, and compact team where your ideas and contributions are valued.What You'll AchieveCreate intricate device assemblies and manufacturing fixtures using 3D CAD, integrating components like PCBAs, batteries, and connectors.Rapidly prototype and test using various technologies (3D printing, machining, etc.)Engage in all phases of product development, from exploration and prototyping to detailed design, testing, and scaling for mass production.Work closely with electrical, firmware, and senior mechanical engineers on system architecture and integration.Maintain design quality and adhere to medical device regulatory standards through clear documentation and thorough testing.Assist manufacturing and sustaining engineering by optimizing designs for cost reduction and enhanced manufacturability, supporting process or test development, and aiding in failure analysis.Hinge Health Hybrid ModelWe believe in the advantages of both remote and in-office work, and we aim to harness the best of both worlds. Employees in hybrid roles are expected to work in the office three days a week for a full eight-hour business day. Our San Francisco office features a dog-friendly work environment.

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.

Join Our Innovative TeamAt ChefRobotics, we are pioneering the integration of intelligent machines into the physical world. Inspired by the transformative potential of AI, particularly in industries representing 90% of global GDP, we focus on revolutionizing the food sector. Our mission is clear: to deploy an intelligent robot in every commercial kitchen globally. With significant backing from top investors including Kleiner Perkins and Bloomberg BETA, our team comprises exceptional engineers and industry leaders from renowned companies like Google, Tesla, and Amazon Robotics. Join us in our rapid growth journey as we reshape the food industry through technology!

The OpportunityJoin Foundry Robotics, an innovative leader reshaping the landscape of manufacturing through cutting-edge robotics technology. We are dedicated to revolutionizing assembly and production processes for top-tier robotics enterprises and critical national security hardware. In essence, we are architecting robots that manufacture other robots.We are seeking a passionate Mechatronics Engineer who excels at the convergence of mechanical design, electronic systems, and control engineering. In this role, you will transform complex robotic hardware into reality through seamless integration and hands-on execution. Your responsibilities will span the entire lifecycle, from conceptual prototypes to production-ready assemblies. Collaborating closely with diverse teams, you will integrate sensors, actuators, and control systems into high-performance hardware while developing and fine-tuning closed-loop behaviors in real-time with operational machines. As part of a dynamic and agile team, your designs will swiftly transition from the drawing board to the manufacturing floor, where you will validate, troubleshoot, and enhance them.About Foundry RoboticsAt Foundry Robotics, we are redefining the future of manufacturing through advanced robotics solutions. Our mission is to revitalize the American manufacturing sector as an AI-driven, assembly-centric, dual-use contract manufacturer. We are committed to equipping manufacturers with intelligent, efficient, and versatile robotic systems that significantly enhance productivity and quality. As a pivotal member of our engineering team, your contributions will shape our products, culture, and overall success. This position is 100% on-site at our Mission District office in San Francisco.Key ResponsibilitiesDesign and develop mechanical and electromechanical systems utilizing CAD, ranging from rapid prototypes to production-intent assemblies.Collaborate effectively on the integration of sensors, actuators, and control systems within mechanical assemblies, guiding them from concept through to validation.Create and execute closed-loop control architectures for electromechanical systems, working alongside software and robotics team members.Configure and integrate motor controllers, including servo and stepper drives, encoder/resolver interfacing, and closed-loop motion tuning.Engage in hands-on work with hardware, building, assembling, testing, and iterating through prototyping and initial production phases.Support fabrication efforts across various technologies, including machining, sheet metal, welding, 3D printing, fixtures, and tooling.Collaborate with external vendors and contract manufacturers to meet development and production requirements.Make informed trade-offs between performance, cost, and manufacturability to drive successful project outcomes.

About Atomic SemiAtomic Semi is pioneering the creation of a compact and rapid semiconductor fabrication facility.Our vision leverages contemporary technology and innovative simplifications to realize this goal. By developing our own tools, we aim for swift iterations and enhancements.We are assembling a small cadre of outstanding, hands-on engineers across various disciplines including mechanical, electrical, hardware, computer science, and process engineering. Our ambition is to master the entire stack—from the atomic level to architectural designs. Our team is driven by optimism and a commitment to pushing the boundaries of technology.We embrace the philosophy that smaller, faster, and self-built solutions are superior.Our belief in our capabilities is unwavering; our lab is equipped with 3D printers, an array of sophisticated microscopes, e-beam writers, general fabrication tools, and we are ready to invent anything that we find lacking.Founded by Sam Zeloof and Jim Keller, Atomic Semi is led by pioneers in the semiconductor industry, with Sam recognized for producing chips in his garage, and Jim boasting a 40-year legacy of leadership in the field.About the TeamOur automation engineering team is tasked with developing robotic systems to efficiently produce semiconductor packaging devices. We engage in designing, prototyping, building our own fabrication equipment, and innovating novel manufacturing processes. Our specialized team, skilled in electrical, mechanical, physics, and chemistry, collaborates closely to achieve our objectives.About the RoleAs a Mechanical Engineer - Automation at Atomic Semi, you will be responsible for generating and prototyping robotic components and systems from the ground up. Your projects will encompass precision small motion manipulation, integrating automation into existing machines, and overseeing complete system development and implementation.