Hands-On Mechanical Manufacturing Engineer

About CalaAt Cala, we are dedicated to liberating individuals from the challenges of chronic diseases. Our journey began with the development of the first non-invasive prescription therapy for hand tremors, leading to the release of Cala kIQ — our most advanced therapy to date. Our innovative products have empowered thousands to regain their confidence and improve their quality of life.But our mission extends beyond tremors. Our groundbreaking technology has the potential to transform treatment across neurology, cardiology, and various other fields. We are just getting started!The OpportunityWe are looking for a proactive Mechanical Manufacturing Engineer to enhance our collaboration with Cala's contract manufacturing partners and optimize production operations. This role will involve designing fixtures, refining assembly processes, and facilitating production ramp-up and continuous improvement for our wearable medical devices. You will work closely with contract manufacturers to observe builds, troubleshoot issues, and implement effective tooling and process enhancements aimed at boosting quality, throughput, and operator ergonomics.

About Our TeamAt OpenAI, our Hardware team is dedicated to innovating system-level and silicon solutions tailored for the demanding requirements of cutting-edge AI applications. We seamlessly integrate mechanical, thermal, electrical, and systems engineering to transform high-performance, mission-critical hardware from initial design to mass production.We collaborate closely with design engineers, operations, TPM, and external manufacturing partners, ensuring that our AI infrastructure is not only reliable and efficient but also designed for scalability.About the RoleWe are seeking a seasoned Manufacturing Engineer to spearhead thermal-mechanical manufacturing projects throughout the lifecycle of next-generation AI hardware systems. In this pivotal role, you will be responsible for driving the design, validation, and quality strategies of manufacturing processes from concept to mass production.You will engage cross-functionally with mechanical, thermal, electrical, and systems engineers to ensure our data center hardware platforms meet stringent performance, reliability, and scalability standards at both the component and rack levels. This position demands strong analytical skills, hands-on manufacturing experience, and the ability to thrive in a fast-paced, interdisciplinary environment.This role is based in San Francisco, CA, operating under a hybrid work model of three days in the office each week. We also offer relocation assistance to qualified new hires.Key ResponsibilitiesLead thermal-mechanical manufacturing and quality initiatives to guarantee product success from concept through launch and high-volume production.Own the manufacturing process design for next-generation AI hardware systems, collaborating with engineering, operations, TPMs, suppliers, and external partners.Work cross-functionally to design and optimize mechanical and thermal solutions for large-scale data center deployment.Design and validate manufacturing processes for chassis, enclosures, cooling systems, and high-power connections, aligning with performance and reliability standards.Conduct hands-on DFM/DFx analysis across design, development, prototyping, testing, and production phases.Research and implement automation techniques to enhance manufacturing efficiency and scalability.Define and manage manufacturing requirements, scope, schedules, and deliverables in collaboration with both internal and external stakeholders.Partner with suppliers to develop validation plans that ensure reliability and performance criteria are met.

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.

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 the Multiply Labs Team as a Mechanical Engineer!Multiply Labs, a groundbreaking startup located in San Francisco, California, is backed by elite investors such as Casdin Capital, Lux Capital, and Y Combinator. Our vision is to create the world's most advanced robotic systems to facilitate the manufacturing of life-saving therapies.We are at the forefront of transforming cell therapy production by innovating robotic technologies that automate and enhance the scalability of these critical medical treatments. Our solutions enable biopharmaceutical companies to efficiently produce cell therapies without extensive modifications to their existing processes, thereby lowering regulatory hurdles and costs. Traditional methods often exceed $1 million per patient—our robotics make these essential therapies more affordable and accessible.About the RoleAs a Mechanical Engineer within Multiply Labs, you will leverage your engineering acumen and leadership skills to design consumable components for complex automated machinery. Your responsibilities will encompass designing robotic cartridges, adapters, and single-use fluid transfer sets that facilitate robotic integration with standard consumables used in cell therapy manufacturing (e.g., fluid transfer bags, bioreactors, cell isolators, reagent vials). You will collaborate closely with a multi-disciplinary team of hardware and software engineers to develop both current and future generations of our robotic systems, overseeing everything from component selection to prototype development and production. Success in this role hinges on your ability to iterate and optimize designs through first-principle engineering methodologies. With multiple exciting projects at various stages of development, strong documentation and organizational skills will be essential for facilitating effective decision-making and project coordination.

Join Our Team as the Director of Manufacturing Engineering!At Bright Machines, we are transforming the manufacturing landscape with cutting-edge technology and innovative solutions. We are seeking a visionary Director of Manufacturing Engineering to lead our engineering team in developing state-of-the-art manufacturing systems that enhance productivity and efficiency.In this pivotal role, you will drive engineering excellence, champion process improvements, and foster a culture of innovation within the organization. If you are passionate about redefining the future of manufacturing, we want to hear from you!

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.

Company Overview:At Specter, we are pioneering a software-defined control plane that revolutionizes how businesses protect their physical assets. Our mission is to provide American enterprises with comprehensive visibility over their physical environments through innovative technology.We are developing an interconnected hardware-software ecosystem built on cutting-edge multi-modal wireless mesh sensing technology. This advancement allows us to significantly reduce the cost and time required for sensor deployment, enhancing operational efficiency. Our platform will serve as the perception engine for companies, delivering real-time insights into their physical landscape and facilitating autonomous management of operations.Our dynamic co-founders, Xerxes and Philip, are dedicated to empowering our partners in the rapidly evolving field of physical AI and robotics. Join our small but ambitious team, comprised of talents from leading companies such as Anduril, Tesla, Uber, and the U.S. Special Forces.Role and Responsibilities:We are seeking a Lead Manufacturing Engineer who will play a vital role in bridging the gap between hardware engineering design and scalable production. You will be pivotal in ensuring our hardware products transition seamlessly from the engineering phase to pilot production and eventually to large-scale commercial deployment.Responsibilities include:Collaborate with mechanical, electrical, and systems engineers to develop products that are manufacturable, testable, and dependable.Establish and implement DFM/DFA guidelines, providing constructive feedback early in the design cycle to facilitate rapid iterations and scalability.Design and document manufacturing processes, assembly instructions, and work instructions for prototypes and pilot builds.Specify, source, and deploy tools, fixtures, and assembly aids to enable efficient and reliable builds.Oversee the build process for engineering prototypes, including planning, hands-on assembly support, and troubleshooting.Coordinate with supply chain and external manufacturing partners to ensure readiness for new product introduction (NPI) builds and scaling to commercial volumes.Drive yield improvement initiatives and conduct root-cause analyses for assembly, testing, and field failures.Manage and assist in implementing...

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.

Join Formic as a Manufacturing Automation Engineer, where you will play a crucial role in revolutionizing the manufacturing landscape. You will leverage cutting-edge automation technologies to enhance production efficiency and ensure high-quality output. As part of our dynamic team, you will collaborate with various departments to implement innovative solutions that drive operational excellence.

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.

Join Gridware as a Mechanical Research Engineer, where your innovative spirit and engineering expertise will contribute to groundbreaking projects in the energy sector. You will be responsible for conducting research, developing prototypes, and collaborating with a team of skilled engineers to advance our technology solutions.

Join Crusoe as a Mechanical Engineer and play a pivotal role in designing innovative solutions that drive efficiency and sustainability in energy technology. In this position, you will collaborate with cross-functional teams to develop and optimize mechanical systems, ensuring peak performance and reliability.

Join the Sleep Fitness RevolutionAt Eight Sleep, we are dedicated to maximizing human potential through the power of optimal sleep. As the pioneering sleep fitness company, we are transforming the concept of restful sleep by developing cutting-edge hardware, software, and AI technologies that facilitate personalized, data-driven recovery experiences. Our innovative products enhance mental, physical, and emotional performance, making us the choice of high achievers, professional athletes, and health enthusiasts across over 30 countries.Recognized as one of Fast Company's Most Innovative Companies in 2019, 2022, and 2023, and honored twice in TIME's “Best Inventions of the Year,” we operate with a high-performance mindset: fast, focused, and dedicated to impactful results. We believe in continuous improvement—shipping products is just the beginning; we refine and enhance them obsessively to ensure our members sleep better and wake up stronger.Every position at Eight Sleep offers a unique opportunity to contribute to groundbreaking technology, collaborate with exceptional talent, and influence a future where sleep is a dynamic asset for improved living. If you're ready to leave the mundane behind and push the boundaries of innovation, this is your moment. Join us in leading the transformation of global sleep practices and unlocking human capabilities.High Standards, Unwavering CommitmentWe embrace intensity because our mission demands excellence. At Eight Sleep, we adopt the mentality of the world’s elite performers: focused, relentless, and striving to be at the peak of our craft. This is not a conventional 9-to-5 job. Our team is deeply committed, often dedicating over 60 hours a week—driven not by obligation but by our investment in our mission. We are here to innovate rapidly, push boundaries, and deliver uncompromising results. If you thrive in high-pressure environments and seek to engage in the most significant work of your career, you'll find your place here. If you're seeking a cushy role—this is not the one for you.The RoleWe are in search of a talented Staff Mechanical Engineer to spearhead new product development from concept to production. You will be part of a tight-knit, mission-driven team with considerable autonomy in decision-making. With our rapid growth, there are significant opportunities for career advancement.This role is based out of our San Francisco Office 5 days a week.

Be Part of the Team Revolutionizing Autonomy in ConstructionAt Bedrock Robotics, we are at the forefront of transitioning artificial intelligence from theoretical frameworks to practical applications. Our team consists of seasoned professionals who have been instrumental in launching Waymo, scaling Segment to a $3.2 billion acquisition, and driving Uber Freight to $5 billion in revenue. We are currently implementing autonomous systems on heavy construction machinery nationwide, expediting timelines for multi-billion dollar infrastructure projects while enhancing safety on job sites. With $350 million in funding, we are swiftly addressing the growing demand for housing, data centers, manufacturing facilities, and tackling the construction sector's labor shortages.This is where cutting-edge algorithms meet robust engineering. You will collaborate with experienced construction professionals and world-renowned engineers to tackle real-world challenges that simulations cannot address. If you're eager to leverage innovative technology to solve significant issues alongside a dedicated team, we would be thrilled to welcome you aboard.Job OverviewAs a Mechanical Systems Integration Engineer, your primary responsibility will be the physical integration of sensors, computational hardware, actuators, and auxiliary subsystems onto our next-generation autonomous construction machines. You will work collaboratively with electrical, software, manufacturing, operations, and supply chain teams to convert system-level requirements into robust mechanical designs optimized for scalability, reliability, manufacturability, industrial design, and operational efficiency in challenging real-world environments—enduring vibrations, shocks, dust, debris, and various weather conditions.Main ResponsibilitiesMechanical Integration Design: Create mounting brackets, enclosures, and structural interfaces for sensors (cameras, LiDAR, radar, IMUs), computational units, and ancillary hardware on vehicle platforms.3D CAD Design: Develop intricate part and assembly models utilizing Onshape, including GD&T-compliant drawings for fabrication and vendor sourcing.Routing & Packaging: Collaborate with cross-functional teams to determine physical routing paths for wire harnesses, fluid lines, and cooling components within constrained mechanical envelopes.Environmental Protection: Design and select suitable sealing, gasketing, and protective enclosures (IP-rated) to shield sensitive electronics from moisture, dust, and contamination.Prototype Build Support: Assist in the building and testing of prototypes to validate design assumptions and ensure functionality.

ABOUT US:At Astro Mechanica, we are pioneering the future of aerospace technology with a commitment to creating faster and more interconnected travel solutions. Our mission is to democratize high-speed flight, making supersonic travel not only flexible and accessible but also sustainable. We envision a world where rapid, on-demand global mobility is the norm for transporting people and goods. To bring this vision to life, we are fusing our advanced airframe and engine technologies, including our innovative Duality™ propulsion system, with a new operational framework that ensures supersonic transport is as efficient and economical as today’s commercial air travel. In the near term, our focus is on developing adaptable high-speed systems to bridge performance gaps for the United States government.WHO WE ARE:We are a dedicated team of passionate engineers entrenched in the aerospace sector. Our flat organizational structure encourages collaboration among generalists and specialists alike, fostering a culture where innovative ideas flourish. We operate at a rapid pace, driven by a commitment to building transformative technology in a pragmatic and skilled environment.WHO YOU ARE:Astro Mechanica is on the lookout for a seasoned Senior Mechanical Engineer who is ready to take ownership of hardware design from the conceptual phase through to production. The right candidate will possess a deep understanding of how their designs impact surrounding systems and will tackle technical challenges with a first-principles approach. Your contributions will directly influence the configuration and performance of our Duality™ engine.In this position, you will lead the journey of our cutting-edge jet engine and its subsystems from early prototypes to flight qualification, vehicle integration, and actual flight. You will embody the philosophy of testing as you fly.WHAT YOU’LL DO:Conduct design trade studies while considering system-level impacts.Complete detailed designs supported by structural, thermal, and fluid analyses.Lead design reviews and gather feedback from stakeholders.Build prototypes directly, design necessary tooling, and create work instructions.Perform hardware tests and analyze data to confirm compliance with requirements and performance metrics.Efficiently diagnose hardware issues and identify corrective actions.WHAT WE’RE LOOKING FOR:10+ years of hands-on experience with fluid dynamics and mechanical design in aerospace applications.

Astranis is at the forefront of expanding humanity’s presence beyond Earth through the development of advanced satellites designed for high orbits. Our satellites facilitate dedicated and secure networks for a diverse clientele, including major enterprises, governmental agencies, and the United States military. With five satellites currently in orbit and a robust pipeline, we are addressing a substantial backlog exceeding $1 billion in commercial agreements.As a trusted partner in satellite communications, Astranis caters to clients with high standards for reliability, security, network performance, and tailored solutions. With over $750 million raised from distinguished investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 skilled engineers and entrepreneurs operates from our expansive 153,000 sq. ft. headquarters in Northern California, USA.

ABOUT ASTRO MECHANICA:Astro Mechanica is a pioneering aerospace firm dedicated to constructing a faster, more interconnected future. Our goal is to make high-speed flight affordable and sustainable for everyone. We envision a world where swift, on-demand global mobility is the norm for transporting people and goods. To realize this vision, we are integrating our cutting-edge airframe and engine technologies—including Duality™, our unique dual-use propulsion system—into a new operational model that optimizes supersonic travel, making it as efficient and cost-effective as modern commercial aviation. In the immediate future, we are working on versatile, high-speed systems designed to enhance aircraft performance for the United States government.OUR TEAM:We are a group of enthusiastic engineers committed to pushing the boundaries of aerospace technology. Our team operates on a flat hierarchy, emphasizing collaboration and a shared passion for creating functional and innovative solutions. We prioritize speed, practicality, and engineering excellence over traditional corporate structures.YOUR ROLE:As a natural builder, you excel at navigating the realms of advanced manufacturing, prototyping, and leadership. Your extensive experience in high-mix, low-volume production environments has honed your skills in speed, precision, and adaptability. You not only work hands-on with machinery and tools but also possess the acumen to develop scalable teams, processes, and workshops. You thrive on tackling complex challenges, streamlining chaos, and empowering your colleagues to achieve their best results. Your drive stems from the ambition to construct groundbreaking innovations, and you are eager to help define the future of aerospace from its very foundation.Your career may have begun in design or structural engineering, or you may have transitioned into manufacturing leadership through practical experience. Regardless, you are adept in both fields. You engage deeply with engineering while ensuring that decisions align with the practicalities of building, testing, and iterating hardware.You take a holistic view of costs and schedules, collaborating closely with engineering and senior leadership to creatively navigate trade-offs, eliminate obstacles to execution, and keep prototyping on track. Your motivation to create something unprecedented fuels your excitement to influence the aerospace landscape from the ground up.