Prototype Machinist

About Observable SpaceAt Observable Space, we're redefining how humanity observes and connects with the universe. We're a vertically integrated, high-growth, space technology company building industry-leading precision optics platforms for Earth and in space. Our systems are trusted by thousands of customers, including NASA, JPL, SpaceX, Boeing, RTX, the US Space Force and the U.S. Department of War, leading research institutions and international partners.We combine precision opto-mechanical hardware, embedded compute, cloud orchestration, and developer-friendly APIs into world class products at scale with in-house manufacturing. From advanced ground stations, on-orbit sensor suites, free space optical lasercom, to distributed compute platforms, we deliver the foundational systems enabling continuous, real-time navigation, observation, and communication in space.Observable Space is backed by top-tier institutional investors including Lux Capital, Upfront Ventures, RTX Ventures, Detroit Venture Partners and Embedded Ventures. To learn more, visit observable.space.About the RoleWe are seeking a Prototype Machinist to join our Los Angeles-based state-of-the-art prototyping facility. We're building a state of the art prototyping facility to machine some of the world's most challenging materials from glass, titanium, to exotic wire EDM'd parts; this is not a standard machine shop position. This role is ideal for a highly adaptable, technically-minded individual who thrives in fast-paced environments. We're looking for someone to sit with the team day in and day out to help push back on the team's wild unmanufacturable designs. While this is a full time position, the job has an on-call component - when a part is urgently needed, day or night, you may be the one called to make it. On the flip side, your day-to-day schedule is extremely flexible, and you'll often have lighter periods or ad-hoc time off when the schedule allows.What You'll DoOperate a wide range of fabrication tools including:3D printers5-axis CNC mills and live tooling lathesTube and flat-bed lasersWaterjets, wire EDM, and high-precision manual toolsParticipate in engineering design reviews to evaluate manufacturabilityCollaborate closely with engineering teams to iterate on part designs in real time.Help design novel machining processes and methodologies that will be used in our Michigan production facilityWork from SolidWorks models and technical drawings to produce high-tolerance parts.Prepare CAM programs in Mastercam, Fusion 360, or similar tools.Help develop custom fixturing, jigs, and one-off assemblies for rapid prototyping.Assist in maintaining, upgrading, and tuning machines and shop infrastructure.Participate in design for manufacturability (DFM) reviews and provide direct feedback to engineers.Occasionally assist with integration or test setups when needed.Basic Qualifications5+ years of hands-on experience in an engineering prototyping shop or machine shop environment.Working knowledge of SolidWorks (or similar CAD tools).Significant experience with CAM software such as Mastercam or Fusion CAM.Proficient with modern CNC machine operations and part inspection.Ability to interpret and execute mechanical drawings and GD&T.Familiarity with common materials (aluminum, titanium, stainless steel, plastics, etc.) and their machining characteristics.Comfortable with occasional non-standard hours, including occasional late-night or weekend requests.Preferred QualificationsExperience with light duty fabrication - TIG welding, laser cell operation, slip rolling, fixturing and fit-up. "A grinder and paint make me the welder I aint" is our moto in a prototype environmentExperience designing test fixturing and metrologyWilling to shoot paint - grab the hvlp and step into the booth. Doesn't have to be pretty, just can't be boogers.Deep knowledge of multi-axis milling, fixturing, and workholding strategies.Experience building parts for aerospace, robotics, or optics applications.Familiarity with vacuum-compatible fabrication.What We OfferCompetitive Compensation – A salary package aligned with industry standards and your experience.Equity Opportunities – Take part in our success with stock options.Flexible Work Environment – Enjoy working from our office or in a hybrid work setup with the flexibility to work remotely part of the week. We require a minimum of 3 days per week in our office to support collaboration and team culture. (LA Office only)Unlimited PTO (exempt only) – Take the time you need with our flexible, trust-based vacation policy, including paid holidays. We encourage everyone to rest, recharge, and take care of themselves.Health & Wellness – Comprehensive medical, dental, and vision coverage with 100% of the premium paid by the employer for employees.Cutting-Edge Tools – Get access to the latest hardware and software you need to do your best work.Mission-Driven Culture – Be part of a team working on meaningful challenges with real-world impact.Inclusive Team – We foster a supportive and diverse workplace where all voices are valued.Observable Space is an equal opportunity employer. We consider all qualified applicants for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity or expression, national origin, ancestry, age, disability, genetic information, marital status, veteran or military status, or any other characteristic protected by applicable federal, state, or local law.