Mechanical Engineer, Hands Prototyping

📍 Job Overview

Job Title: Mechanical Engineer, Hands Prototyping

Company: 1X Technologies AS

Location: Palo Alto, California, United States

Job Type: FULL_TIME

Category: Mechanical Engineering / Robotics Prototyping

Date Posted: November 19, 2025

Experience Level: Mid-Senior Level (5+ years)

Remote Status: On-site

🚀 Role Summary

• This role is central to the rapid development and iteration of 1X's core product: dexterous humanoid hands, focusing on hands-on prototyping and immediate hardware realization.

• The Mechanical Engineer will be embedded within the Hands team, acting as the primary resource for transforming digital designs into physical components and functional assemblies with extreme speed.

• Expect a dynamic, fast-paced environment where daily progress is measured by tangible, working hardware and iterative improvements, demanding a proactive and hands-on approach to problem-solving.

• The position requires a strong understanding of mechanical design principles, coupled with extensive practical experience in manufacturing processes and system-level testing to ensure the robustness and performance of robotic hands.

📝 Enhancement Note: This role is highly specialized within the robotics sector, focusing intensely on the physical realization of complex mechanical systems. The emphasis on "same-day/next-day prototypes" indicates a critical need for efficiency, resourcefulness, and a deep practical understanding of manufacturing techniques beyond theoretical design. The "zero drama, just build it and make it work" ethos suggests a culture that values execution and problem-solving above all else.

📈 Primary Responsibilities

• Execute same-day and next-day prototyping of humanoid hand components and assemblies using a variety of methods including milling, turning, 3D printing, cutting, soldering, and manual assembly.

• Rapidly generate and modify CAD designs (Onshape preferred, SolidWorks acceptable) for new parts and quick-turn modifications to integrate into robotic systems.

• Assemble functional sub-systems and complete robotic hands, including components such as tendons, sensors, skins, and gear trains, ensuring seamless integration and operation.

• Conduct rigorous bench-level testing, including abuse tests, cycle tests, and drop tests, to evaluate the durability and performance of prototype designs under simulated real-world conditions.

• Collaborate closely with the design engineering team to iterate on mechanical designs based on test results, user feedback, and performance requirements, driving continuous improvement.

• Design, build, and modify functional test rigs and fixtures to accurately measure critical parameters such as force, speed, and precision, enabling rapid data acquisition and analysis.

• Maintain the workshop environment, ensuring all machinery, tools, and materials are stocked, organized, and in good working order to support continuous prototyping operations.

• Create concise and effective documentation for prototype designs and testing procedures, focusing on information critical for faster iteration on subsequent design revisions.

📝 Enhancement Note: The responsibilities highlight a strong bias towards action and practical application. The "Document just enough so the next rev is faster" implies a pragmatic approach to documentation, prioritizing speed and clarity for iterative development over exhaustive technical manuals. This role is not just about building, but about enabling rapid learning and design optimization through hands-on engineering.

🎓 Skills & Qualifications

Education: While no specific degree is listed, a strong foundation in Mechanical Engineering principles is implied, likely from a Bachelor's degree or equivalent practical experience.

Experience: A minimum of 5 years of experience in shipping real mechanical hardware, with a significant preference for experience in robotics or highly complex electromechanical systems.

Required Skills:

• Demonstrated expertise in rapid mechanical prototyping encompassing milling, turning, 3D printing (FDM/SLA), laser cutting, and assembly techniques.

• Proficiency in CAD software, with a strong preference for Onshape; SolidWorks experience is also considered.

• Hands-on experience operating and maintaining 3-axis CNC machines, lathes, and various 3D printers.

• Proficiency in using precision measurement tools such as calipers, micrometers, and force gauges for quality control and data collection.

• Sufficient understanding of electronics to perform system-level testing and basic troubleshooting of electromechanical assemblies.

Preferred Skills:

• Direct experience in building or iterating on robotic hands, grippers, or end-effectors.

• Familiarity with advanced manufacturing techniques such as vacuum casting, sheet metal fabrication, and custom fixture design.

• Basic knowledge of data acquisition (DAQ) systems and experience writing test scripts using Python or MATLAB.

📝 Enhancement Note: The explicit mention of "5+ yrs shipping real mechanical hardware" and "CAD all day, every day" suggests that candidates must have a deeply ingrained practical engineering skill set. The preference for Onshape indicates the company's commitment to cloud-based collaborative design tools, which is a growing trend in engineering. The "Enough understanding of electronics" points to the integrated nature of the role, requiring cross-disciplinary awareness.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A portfolio demonstrating a strong track record of rapid prototyping and hands-on fabrication of complex mechanical components and assemblies.

• Case studies showcasing iterative design processes, highlighting how testing and feedback were used to refine and improve mechanical systems.

• Examples of functional assemblies built, detailing the integration of various components (e.g., actuators, sensors, structural elements) and their performance.

Process Documentation:

• Examples of concise documentation for prototype designs and testing procedures, emphasizing clarity and utility for future iterations.

• Evidence of workflow management in a fast-paced prototyping environment, showing how tasks were prioritized and executed efficiently.

• Demonstrations of how process improvements were implemented in the workshop or fabrication process to increase speed and reduce errors.

📝 Enhancement Note: For this role, the portfolio is paramount, serving as direct evidence of the candidate's ability to "build it and make it work." It should not just list projects but visually and descriptively showcase the hands-on nature of the work, the manufacturing processes used, and the tangible outcomes of rapid iteration cycles. Emphasis should be placed on speed, problem-solving, and the practical application of engineering principles.

💵 Compensation & Benefits

Salary Range: $120,000 - $200,000 per year (Base Pay), with potential for up to $240,000, plus Equity.

Benefits:

• Comprehensive health, dental, and vision insurance, providing robust medical coverage for employees and their families.

• 401(k) with company match, supporting long-term financial planning and retirement savings.

• Generous paid time off and holidays, ensuring work-life balance and opportunities for rest and rejuvenation.

• Equity options, offering employees a stake in the company's growth and success.

Working Hours: Typically 40 hours per week, though the nature of rapid prototyping may necessitate flexibility and extended hours during critical project phases. The emphasis on "same-day/next-day" suggests a culture that values output over strict adherence to traditional schedules, but the core expectation is a full-time commitment.

📝 Enhancement Note: The provided salary range of $120k-$200k, with a potential maximum of $240k, is competitive for experienced Mechanical Engineers in the high-cost-of-living Bay Area, particularly for specialized roles in cutting-edge technology like robotics. The inclusion of equity is a significant component, aligning employee incentives with company performance. The benefits package is standard for tech companies, emphasizing health and financial well-being.

🎯 Team & Company Context

🏢 Company Culture

Industry: Robotics, Advanced Manufacturing, Humanoid Technology. 1X Technologies AS is at the forefront of developing highly dexterous humanoid hands, positioning itself within a rapidly evolving and technologically intensive sector.

Company Size: While not explicitly stated, the description suggests a lean, agile, and rapidly growing startup environment. The focus on "in-house" development and "shipping real progress daily" implies a culture of intense collaboration and rapid execution. The mention of matching skills to "best-fit opening across the different areas of the bot" suggests multiple specialized teams.

Founded: The founding date is not provided, but the company's focus on cutting-edge humanoid robotics suggests it is likely a relatively modern, innovation-driven organization.

Team Structure:

• The role is embedded within the "Hands team," indicating a specialized, product-focused unit.

• This team likely comprises mechanical designers, engineers, and technicians dedicated to the development and refinement of the humanoid hand.

Methodology:

• Rapid Prototyping: The core methodology revolves around quick design-to-build cycles, with a strong emphasis on "same-day/next-day" hardware creation.

• Iterative Design: Continuous improvement is driven by hands-on testing, failure analysis, and rapid design adjustments.

• Data-Driven Iteration: While documentation is minimal, testing is crucial for measurement ("measure force, speed, precision fast"), implying that data informs design decisions.

• Hands-on Execution: A strong bias towards practical work and immediate problem-solving over theoretical debate.

Company Website: 1x.tech

📝 Enhancement Note: The company culture appears to be highly execution-oriented, valuing speed, practical skills, and problem-solving. The mention of "no drama" and "just build it" suggests a direct, results-focused environment. The industry context of advanced robotics implies a need for continuous innovation and a willingness to tackle complex, unsolved engineering challenges.

📈 Career & Growth Analysis

Operations Career Level: This role represents a senior-level individual contributor position focused on hands-on engineering and rapid prototyping within the robotics domain. It is ideal for engineers who thrive in a "build-it-yourself" environment and want to be directly involved in the physical creation of cutting-edge technology.

Reporting Structure: The Mechanical Engineer will report to a lead within the "Hands team." While the exact hierarchy isn't detailed, the description implies a collaborative team structure where direct input and problem-solving are highly valued.

Operations Impact: The Mechanical Engineer's direct impact is on the speed and quality of prototype development for the company's core product – the humanoid hand. Success in this role directly accelerates the design-build-test-iterate cycle, significantly influencing the overall product development timeline and the robustness of the final hardware. This role is critical for translating abstract designs into tangible, testable, and ultimately manufacturable components.

Growth Opportunities:

• Specialization: Deepen expertise in robotic hand design, advanced prototyping techniques, and specific manufacturing processes (e.g., advanced materials, additive manufacturing).

• Leadership: Potential to lead prototyping efforts, mentor junior engineers, or manage workshop operations as the team and company scale.

• Cross-functional Exposure: Opportunity to contribute to broader robotic system development and gain exposure to other engineering disciplines (e.g., software, controls, electronics) through integrated projects.

• Innovation: Contribute to the development of novel mechanical solutions and intellectual property in the field of humanoid robotics.

📝 Enhancement Note: This role offers significant growth for engineers who excel at rapid physical implementation. Career progression likely involves increasing complexity of projects, leadership within the prototyping function, or specializing in niche areas of robotic hand mechanics. The emphasis on in-house development suggests opportunities to influence process and technology adoption.

🌐 Work Environment

Office Type: The job is explicitly stated as "On-site" in Palo Alto, California. This indicates a requirement for physical presence in the company's facilities.

Office Location(s): Palo Alto, California, United States. This location places the engineer in the heart of Silicon Valley, surrounded by a rich ecosystem of technology companies and innovation.

Workspace Context:

• The work environment is characterized by a dedicated workshop ("Keep your corner of the shop stocked and machines running") equipped with various fabrication tools (CNC, lathe, printers, laser cutter).

• Expect a highly collaborative atmosphere within the "Hands team," with ample opportunity for direct interaction with designers and fellow engineers.

• The workspace is designed for rapid prototyping and testing, emphasizing efficiency and immediate access to necessary equipment and materials.

Work Schedule: While a standard 40-hour work week is implied by the "FULL_TIME" employment type, the nature of rapid prototyping and the company's ethos of "shipping real progress daily" suggest a flexible approach where dedication and output are key. There may be periods requiring extended hours to meet critical prototyping deadlines.

📝 Enhancement Note: The on-site requirement is critical for this role due to the hands-on nature of prototyping. The workspace is described as a functional fabrication shop, rather than a traditional office, emphasizing practical work. This environment is best suited for individuals who are comfortable working with machinery and in a workshop setting.

📄 Application & Portfolio Review Process

Interview Process:

• Recruiter Screen (30-min): An initial conversation to assess basic qualifications, experience with core skills (CAD, prototyping), and cultural fit. Be prepared to discuss your background in mechanical hardware and robotics.

• Skills Assessment/Technical Interview: This phase will likely involve in-depth discussions about your experience with specific manufacturing processes, CAD software (especially Onshape), and your approach to troubleshooting and iterative design. Expect questions about past projects and how you've overcome technical challenges.

• Portfolio Review: A crucial part of the process where you will present your portfolio. Be ready to walk through your projects, detailing your role, the processes used, challenges faced, and the outcomes achieved. Focus on demonstrating hands-on skills and problem-solving abilities relevant to robotic hands.

• Team/Hiring Manager Interview: Further evaluation of your technical depth, problem-solving methodology, and how you would integrate into the Hands team. Discussions may focus on your understanding of robotics, your work ethic, and your collaborative approach.

• Potential Practical Exercise: Depending on the role's specifics, there might be a small, timed practical exercise related to CAD or a simple fabrication task to assess your immediate capabilities.

Portfolio Review Tips:

• Show, Don't Just Tell: Prioritize visual evidence – photos, videos, and CAD models of your work. Highlight the "hands-on" aspect.

• Focus on Process: For each project, clearly articulate the design process, fabrication methods used (milling, printing, assembly), and the iterative steps taken.

• Quantify Impact: Where possible, use metrics to demonstrate results – e.g., "reduced print time by X%", "improved part durability by Y% through Z modification," "achieved X precision in measurement."

• Robotics Relevance: If you have robotics experience, make it prominent. Specifically, highlight any work on end-effectors, grippers, or articulated mechanisms.

• Onshape Proficiency: If you have Onshape experience, be prepared to demonstrate it, perhaps even live if the interview format allows.

• Problem-Solving Narrative: For each project, explain the problem, your solution, the challenges encountered, and how you overcame them, emphasizing speed and resourcefulness.

Challenge Preparation:

• Be ready to discuss how you would approach prototyping a specific component of a robotic hand, given limited time and resources.

• Prepare to explain your workflow for taking a CAD design from concept to a functional part, including quality checks and testing.

• Anticipate questions about your experience with different manufacturing technologies and your ability to select the most appropriate for rapid iteration.

📝 Enhancement Note: The interview process heavily emphasizes practical skills and portfolio demonstration. Candidates must be prepared to prove their hands-on capabilities and their ability to work efficiently in a prototyping environment. The "30-min recruiter screen" followed by matching to "best-fit opening" suggests potential flexibility in role placement based on skills.

🛠 Tools & Technology Stack

Primary Tools:

• CAD Software: Onshape (preferred), SolidWorks (acceptable). Proficiency in parametric modeling, assembly design, and part creation is essential.

• Fabrication Machinery:

  • 3-axis CNC Mills
  • Lathes
  • FDM (Fused Deposition Modeling) 3D Printers
  • SLA (Stereolithography) 3D Printers
  • Laser Cutters

• Measurement Tools: Calipers, micrometers, force gauges, dial indicators.

Analytics & Reporting:

• Data Acquisition (DAQ) Systems: Basic understanding and potential use for testing.

• Scripting Languages: Python or MATLAB for test scripts (preferred).

CRM & Automation: Not directly applicable to this hands-on engineering role, but familiarity with project management or task tracking tools might be beneficial for managing prototyping workflows.

📝 Enhancement Note: The technology stack is heavily weighted towards hardware design and fabrication tools. Proficiency in Onshape is a strong preference, indicating a modern, cloud-based CAD approach. The breadth of fabrication machinery underscores the company's commitment to in-house, rapid prototyping capabilities.

👥 Team Culture & Values

Operations Values:

• Speed & Execution: A core value is rapid progress and shipping tangible results daily ("shipping real progress daily," "same-day / next-day prototypes").

• Hands-on Problem Solving: A deep-seated belief in practical application and direct intervention to solve engineering challenges ("just build it and make it work").

• Iteration & Improvement: A commitment to continuous refinement of designs through testing and feedback ("Iterate mechs... until it survives real use").

• Resourcefulness & Efficiency: Making do with available tools and time to achieve objectives ("Document just enough so the next rev is faster").

• Zero Drama: A culture that prioritizes focus, collaboration, and avoiding interpersonal conflicts that could impede progress.

Collaboration Style:

• Embedded & Direct: Engineers are expected to be integrated within their specialized teams, fostering direct and immediate communication.

• Cross-Functional: Close collaboration between design engineers and prototyping engineers is critical for rapid iteration.

• Action-Oriented: Discussions are likely brief and focused on actionable steps, with a preference for doing over debating.

• Mutual Support: The "guy everyone pings" dynamic suggests a culture where team members rely on each other's expertise and availability.

📝 Enhancement Note: The culture is clearly defined by its emphasis on speed, practical execution, and a no-nonsense approach to engineering. This environment is ideal for self-starters who are comfortable taking initiative, working with their hands, and thriving in a fast-paced, results-driven setting.

⚡ Challenges & Growth Opportunities

Challenges:

• Extreme Pace: The demand for same-day/next-day prototypes requires exceptional time management, efficiency, and the ability to perform under constant pressure.

• Complexity of Robotics: Working with sophisticated humanoid hands involves intricate mechanical designs, precise tolerances, and integration with electronics and software.

• Iterative Failure: Prototypes will inevitably fail; the challenge lies in learning from these failures quickly and feeding that knowledge back into design iterations without frustration.

• Resource Management: Balancing the need for rapid prototyping with the availability of materials, machine time, and personnel requires astute prioritization.

• Documentation Balance: Finding the right balance between documenting "just enough" for future iterations without sacrificing immediate build time.

Learning & Development Opportunities:

• Deep Dive into Robotics: Gain unparalleled experience in the design and manufacturing of advanced robotic hands, a cutting-edge field.

• Mastery of Prototyping Tools: Become an expert in operating and maintaining a wide array of sophisticated fabrication equipment.

• Advanced CAD Skills: Hone skills in Onshape and potentially learn new CAD/CAM techniques.

• Cross-Disciplinary Understanding: Develop a stronger grasp of electronics and their integration within mechanical systems.

• Process Optimization: Contribute to refining the company's rapid prototyping processes and workflows.

📝 Enhancement Note: The challenges presented are inherent to a high-growth, cutting-edge robotics startup. Success hinges on adaptability, resilience, and a genuine passion for hands-on engineering. The growth opportunities are significant for individuals seeking to specialize in a high-demand area of engineering.

💡 Interview Preparation

Strategy Questions:

• Prototyping Workflow: "Describe your process for taking a complex mechanical design from CAD to a functional prototype within 24 hours." Be prepared to detail your steps, tool selection, and quality checks.

• Problem-Solving Scenarios: "You've designed a new finger joint, but it fails under load testing. What are your first steps to diagnose and fix the issue?" Focus on systematic troubleshooting and iterative redesign.

• Tooling & Machining: "What are the advantages and limitations of using CNC milling versus 3D printing for rapid prototyping of robotic components?" Discuss trade-offs in speed, material, accuracy, and cost.

• Collaboration: "How do you ensure effective communication and collaboration with design engineers when iterating on a prototype?" Emphasize clear feedback loops and shared understanding.

Company & Culture Questions:

• "What interests you most about 1X Technologies and our mission to build dexterous humanoid hands?" Research the company's products and vision.

• "Describe a time you worked in a fast-paced, 'zero drama' environment. How did you contribute to maintaining that atmosphere?" Highlight your professionalism and focus on results.

Portfolio Presentation Strategy:

• Structure: Organize your portfolio by project, clearly stating the objective, your role, the design/fabrication process, challenges, and outcomes.

• Visuals: Use high-quality images and videos of your work. Show the machines you use, the parts you create, and the assemblies you build.

• Narrative: Tell a story for each project, emphasizing your hands-on involvement, problem-solving skills, and the impact of your work.

• Tool Specificity: Be ready to discuss your experience with Onshape and the various fabrication machines in detail.

📝 Enhancement Note: Preparation should focus on demonstrating practical skills, a fast-paced work ethic, and a deep understanding of mechanical prototyping. The portfolio is your most critical asset, so ensure it is well-curated and effectively presented to showcase your hands-on capabilities.

📌 Application Steps

To apply for this operations position:

• Submit your application through the provided link: https://1x.recruitee.com/o/mechanical-engineer-hands-prototyping

• Portfolio Customization: Tailor your portfolio to highlight projects demonstrating rapid prototyping, mechanical design, hands-on fabrication (milling, turning, printing, laser cutting), and experience with robotic components or systems. Emphasize the speed and iterative nature of your work.

• Resume Optimization: Ensure your resume clearly lists your experience with specific manufacturing tools (CNC, lathes, 3D printers), CAD software (especially Onshape), and relevant skills like "mechanical prototyping," "iterative design," and "robotics." Quantify achievements where possible.

• Interview Preparation: Practice articulating your prototyping process, problem-solving methodologies, and how you handle tight deadlines. Prepare to present your portfolio confidently, walking through projects and demonstrating your practical engineering skills.

• Company Research: Familiarize yourself with 1X Technologies AS, their mission, their focus on humanoid robotics, and their emphasis on rapid, in-house development. Understand their values of speed, execution, and "zero drama."

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.