Prototype Machinist II
Listed on 2026-09-12
-
Manufacturing / Production
Manufacturing & Industrial Operations, CNC Machinist, Manufacturing Engineer, Machine Operator
At Thorlabs, we design and manufacture components, instruments, and systems that transform the world by identifying, enabling, and accelerating key photonics (i.e., light-based) technologies. Backed by a dedicated workforce of more than 3,000 employees worldwide, Thorlabscontributes to cutting-edge research and real-world innovation.
Whether you’re early in your career or bringing years of experience, you’ll find opportunities to grow, take ownership, and make meaningful contributions from day one. We know every employee brings unique talents and perspectives that fuel our success, and we seek driven individuals who are excited to make an impact in a fun, fast-moving culture.
Purpose of the PositionResponsible for programming, set-up, and operation of CNC machines in compliance with inch and metric drawing specifications. Possess the ability operating and performing set ups on both vertical and horizontal milling machines as well as multi-axis mills and lathes. Responsible for the proper use and maintenance of all measuring tools and devices used in inspection of all components. Works under general supervision.
Although the location of the position is in Sterling, VA, from time to time it may be required to undertake duties at other Thorlabs locations.
Independently programs highly complex and unique prototype work pieces on 4+ axis equipment using GibbsCAM, optimizing machining strategies for efficiency and quality.
- Leads advanced set ups and troubleshooting on both Vertical and Horizontal CNC Milling Machines (3 & 4 axis).
- Experience with Okuma, Mazak, Haas, and Fadal controls.
- Proficient with manual programming (G codes/M codes).
Machines and/or fabricating precision tools and fixturing to tight tolerances and complex geometries based on specifications, often requiring innovative solutions for one-off prototype projects.
Solid understanding of mechanical design and dimensioning principles which includes reading blueprints and geometric tolerance comprehension.
Understands material properties (rates of expansion, strength, hardness) and special machining requirements.
Measures, inspects, and troubleshoots dimensions of finished work pieces to ensure conformance to specifications.
Leads documentation creation, revision, and process improvements for prototype projects.
Performs periodic machine maintenance such as, but not limited to dismantling or partly dismantling machines and performing repairs that mainly involve the use of hand tools in scraping and fitting parts.
Comply with safety regulations and maintains clean and orderly work areas.
Mentors and trains Level I machinists, sharing expertise to improve team capabilities.
In addition to the essential functions and duties listed above, all positions are also responsible for:
- Meeting company standards pertaining to quantity and quality of work performed on an ongoing basis, performing all work-related tasks in a manner that is in compliance with all Company policies and procedures.
- Adhering to Company policies, procedures, and directives regarding standards of workplace behavior in completing job duties and assignments.
The Company retains the right to change or assign other duties to this position.
PhysicalActivities:
Work may be active, could stand or sit for long durations and/or perform repetitious work employee may lift or move objects up to 20 pounds. Employees must grasp, manipulate, or assemble parts and components that are often very small. The noise level in the work environment is usually moderate, however, may be noisy t be able to wear appropriate clothing and personal protective equipment such as but not limited to masks, glasses, gloves, and specialty garments.
T…
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).