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Experience Level
Mid to Senior
Qualifications
- 2-5 years of experience in software engineering.- Proficiency in Python programming.- Strong problem-solving skills and a passion for developing innovative solutions.
About the job
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.
Mechanize is at the forefront of AI innovation, developing cutting-edge reinforcement learning environments that enable the automation of various economic sectors. We partner with top-tier AI labs to reshape the future of work.
Join Marathon Fusion as a Senior Mechanical EngineerAt Marathon Fusion, we are pioneering the engineering technologies required to transform fusion science from experimental concepts into operational power plants. While much of the field is focused on developing new fusion devices, our mission centers around creating practical systems that facilitate the lar…
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.
About Marathon FusionAt Marathon Fusion, we are pioneering the engineering advancements necessary to transition fusion energy from experimental stages to operational power plants. While many in the industry focus on the development of innovative fusion devices, we are dedicated to creating the practical systems required to implement fusion energy at a scale relevant to combating climate change.We specialize in developing essential technologies for the fuel cycle and plant operations, including stable isotope production, fuel cycle closure, and advanced blanket systems that facilitate both energy generation and high-value co-products.Founded in 2023, Marathon Fusion is committed to constructing the components and systems that will establish fusion as a viable, abundant, and reliable energy source for the modern era.Our CultureWe operate in a dynamic startup environment that demands focus, adaptability, and prioritization in a constantly evolving landscape. Success here hinges on proactive communication across diverse roles and backgrounds, fostering trust among team members, and a commitment to continuous learning and skill development. We place a high emphasis on self-direction and initiative among our team members.Position OverviewAs an Applied Physicist on the Lithium Team, you will collaborate with mechanical engineers, electrical engineers, and technicians to design, implement, and analyze experiments that propel the advancement of the fusion fuel cycle and stable isotope production. Your hands-on expertise in designing and testing reactive material systems (such as lithium, liquid metals, or molten salts) will be crucial in the development of an innovative isotope separation device.Key ResponsibilitiesDesign and conduct experiments on lithium plasma systems functioning under high-vacuum and elevated temperature conditions.Develop and utilize diagnostic tools, instrumentation, and data acquisition systems to accurately capture and analyze experimental data.Interpret experimental findings to cultivate physical insights, identify key governing phenomena, and enhance system design and processes.Work collaboratively with mechanical and testing engineers to translate experimental data into durable hardware solutions.Contribute to the design and development of vital subsystems, including hollow cathodes, lithium handling, condensation, thermal management, and pumping systems.Qualifications5+ years of experience in designing, prototyping, and testing reactive materials systems.Strong background in experimental physics, particularly in the context of fusion energy and isotopic separation.Proficient in data analysis and interpretation, with a keen ability to derive actionable insights from experimental results.Excellent communication skills and a collaborative mindset are essential for successful teamwork.Bachelor's degree in Physics, Engineering, or a related field; advanced degrees are a plus.
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/
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.
Full-time|$180K/yr - $235K/yr|On-site|San Francisco
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 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.
Full-time|$145K/yr - $195K/yr|On-site|San Francisco
Astranis is revolutionizing satellite communications by creating advanced satellites that operate at high orbits, thereby expanding humanity's capabilities within the solar system. Our satellites deliver dedicated, secure networks to a diverse range of sophisticated clients globally, including large enterprises, sovereign governments, and the US military. With five satellites currently in orbit and a robust pipeline of launches ahead, we are committed to fulfilling over $1 billion in commercial contracts.Astranis stands out as the premier satellite communications partner for clients demanding high standards in uptime, data security, network visibility, and bespoke solutions. Having raised over $750 million from prestigious investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 engineers and entrepreneurs is dedicated to the design, construction, and operation of our satellites from our expansive 153,000 sq. ft. headquarters in Northern California.Senior Mechanical EngineerAs a Senior Mechanical Engineer at Astranis, you will take complete ownership of various subsystems throughout the lifecycle of our spacecraft. You will collaborate with multiple teams to realize both incremental improvements and the introduction of innovative systems.In addition to your individual contributions, you will also mentor and train junior mechanical engineers, fostering their development on various projects. A strong background in problem-solving, hands-on testing skills, and experience in spacecraft or aerospace engineering are essential for this role.
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.
Welcome to Planet. We harness the power of space to enhance life on Earth.At Planet, we design, build, and operate the world’s largest constellation of imaging satellites, delivering an unparalleled dataset through our innovative cloud-based platform. This initiative supports a diverse array of industries including commercial, environmental, and humanitarian sectors, positioning us as both a space and data enterprise.Our clients worldwide leverage Planet's data to pioneer new technologies, generate revenue, conduct research, and tackle some of the planet's most pressing challenges.With complete control over hardware design, manufacturing, data processing, and software engineering, our team is an inspiring blend of experts from various fields.We prioritize a people-centric culture and community, continuously evolving to put our team members first as we prepare for growth. Join us at Planet and be part of our mission to transform global perspectives.Planet operates globally, with a flexible working environment that includes remote employees and offices in San Francisco, Washington DC, Germany, Austria, Slovenia, and The Netherlands.About the Role:The Mechanical Engineering team at Planet seeks a skilled Senior Mechanical Engineer to lead the design of critical spacecraft subsystems for our fleet of Earth-imaging satellites. Your role will encompass overseeing spacecraft design initiatives, from subsystem to full spacecraft level. The ideal candidate will be an experienced mechanical designer with a proven track record in leading mechanical subsystem development through all phases, from conceptualization to manufacturing, testing, and flight integration. As a vital member of the Mechanical Engineering team within Planet’s Space Systems division, you will collaborate closely with various teams to drive our agile approach to spacecraft design.This is a full-time position based at our San Francisco headquarters, requiring in-office attendance five days a week.
Role overview Senior Mechanical Engineers at the City and County of San Francisco play a key role in supporting projects that shape the city’s infrastructure. This position centers on designing, developing, and implementing mechanical systems for public works and municipal needs throughout San Francisco. Key responsibilities Create mechanical designs for a variety of public projects citywide Develop and put into practice systems that strengthen infrastructure and advance sustainability Work closely with a multidisciplinary team committed to public service Work environment This team is dedicated to improving San Francisco’s built environment. Senior Mechanical Engineers contribute directly to the city’s development and ongoing sustainability efforts, leaving a tangible mark on the community.
Join gridware as a Senior Research Engineer in Solid Mechanics, where you will lead innovative projects focused on advancing solid mechanics technologies. In this pivotal role, you will collaborate with multidisciplinary teams to develop cutting-edge solutions that address real-world challenges.
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 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.
We are seeking a dynamic and results-oriented Mechanical Engineering Lead to join our team in San Francisco. In this pivotal role, you will lead and oversee mechanical engineering projects, ensuring innovative solutions that meet client specifications and industry standards.Your expertise will guide a team of engineers and technicians, fostering a collaborative environment that encourages creativity and excellence. You will be responsible for project planning, resource allocation, and the successful execution of engineering tasks, while maintaining high levels of quality and safety.
Senior Mechanical EngineerLocation: San Francisco, CA (full time, in-person)Company OverviewAt Cosmic Robotics, we are driven by our mission to revolutionize the construction of essential infrastructure on Earth while innovating technologies to facilitate humanity's expansion beyond our planet. Our flagship project, Cosmic-1, dramatically accelerates the installation of solar panels, achieving speeds 10 times faster than current methods. This initiative is pivotal in our pursuit of a sustainable energy future and sets the stage for autonomous construction advancements.The RoleAs a Senior Mechanical Engineer, you will take ownership of a vital subsystem within the Cosmic-1 platform, guiding its development from initial concept through to deployment. You will be a key contributor in shaping the future of autonomous construction.This role offers a unique chance to:Tackle challenging and impactful problems that will influence the future of infrastructure and energy.Collaborate with a distinguished team comprising experts from NASA, SpaceX, Google, Built Robotics, and more.Experience rapid personal and professional growth within a fast-evolving organization.ResponsibilitiesLead the design and development of hardware components and systems, including primary and secondary structures, mechanisms, and enclosures.Oversee the complete product lifecycle from requirements gathering, through trade studies, to detailed design, structural analysis, manufacturing, integration, testing, and customer delivery.Collaborate with cross-disciplinary teams including manufacturing, electrical, software, and product engineers to create innovative solutions for complex problems.Engage with suppliers and vendors to devise inventive solutions within tight deadlines.Establish project milestones, plan development roadmaps, and achieve ambitious delivery timelines.Recruit, mentor, and cultivate a high-caliber engineering organization.QualificationsMinimum of 3 years of professional engineering experience.Strong foundational knowledge of statics, dynamics, heat transfer, materials science, and corrosion.Proficiency in mechanical design using CAD software such as SolidWorks, NX, PTC Creo, etc.
Full-time|$145K/yr - $195K/yr|On-site|San Francisco
Astranis is at the forefront of aerospace innovation, crafting cutting-edge satellites designed for high orbits, thereby extending humanity's capabilities into the cosmos. Our satellites deliver dedicated and secure networks to a diverse clientele that includes large corporations, government entities, and the U.S. military. With five satellites currently in orbit and several more set to launch imminently, we are addressing a robust backlog exceeding $1 billion in commercial contracts.As the go-to partner for satellite communications, Astranis caters to clients with demanding needs for uptime, data security, network visibility, and customization. Having secured over $750 million in funding from esteemed investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 skilled engineers and entrepreneurs thrives in our 153,000 sq. ft. headquarters located in Northern California.Senior Mechanical Engineer - RF PackagingIn the role of Senior Mechanical Engineer for Electronics Packaging at Astranis, you will take full ownership of the lifecycle of various components and subsystems aboard our spacecraft. Collaborating with multiple teams, you will implement incremental improvements and introduce new systems to fruition.Beyond your individual contributions, you will mentor and guide junior mechanical engineers through these projects. A robust problem-solving mindset, hands-on testing capabilities, and preferably experience in spacecraft or aerospace engineering are essential for success in this role.
About Watney RoboticsWatney Robotics is at the forefront of developing autonomous robots, aimed at enhancing critical infrastructure. Following our recent successful seed funding round of $21 million, led by Conviction, Abstract, and A*, we are collaborating with major hyperscalers to expedite datacenter construction and maintenance.This is a unique opportunity to join us at a pivotal stage of our growth, where your contributions will have significant ownership and visibility as we transition from prototypes to production fleets. You will be instrumental in shipping tangible systems, crafting our rollout strategies, and influencing the future of a pioneering robotics company.The RoleAs a key member of our Engineering team, you will be responsible for designing components and assemblies for our rapidly expanding fleet of production robots. We prioritize speed and innovation; right from Day 1, you will be a vital contributor to the realization of our products, overseeing essential aspects of hardware design from initial concept to full production.This position is based onsite at our headquarters in San Francisco, giving you the chance to work closely with the founding team.What You’ll DoDesign and develop custom mechanical components for our cutting-edge robotics and teleoperation systems, including end-effectors, grippers, manipulators, mounts, and more.Create and implement rapid prototyping solutions for new hardware designs, focused on performance, reliability, and manufacturability.Integrate mechanical components into larger hardware systems, ensuring alignment with performance objectives and project timelines.Provide technical leadership and guidance to the leadership team on technology strategy and decision-making.Work collaboratively with Hardware Engineers and the Operations team to support the overall product development of our autonomous robotics solutions.What You'll BringA minimum of 4 years of mechanical design experience.Extensive hands-on experience with end-to-end mechanical design of components and assemblies for robotics systems, medical devices, rockets, drones, automotive systems, or similar fields.Expertise in using 3D modeling software such as Creo, Solidworks, or NX; familiarity with Onshape is a plus.Knowledge of Geometric Dimensioning and Tolerancing (GD&T).A proactive attitude with a strong sense of ownership and problem-solving skills.Excellent communication and collaboration skills to work effectively with Hardware Engineers and cross-functional teams.
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.
