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Job Type
Full-time
Description
ABOUT US
G&H is a world leader in optical designing, testing and manufacturing. As experts in the technology of light, G&H works with customers to provide optical systems, assemblies, and components for demanding applications.
Headquartered in Ilminster Somerset, UK with primary operations in the USA and Europe, G&H is recognized for the breadth of their acousto-optic, electro-optic, crystal-optic, fiber optic, and precision optic products. G&H is recognized as the preferred source for OEMs in the life sciences, industrial, and aerospace and defense industries, with a history of quality and excellence that dates back over seventy-five years.
THE ROLE
The Crystal Fabrication Technician is responsible for fabricating, processing, and inspecting precision optical and crystal components used in advanced photonics applications. This role operates and monitors manufacturing equipment used in crystal fabrication processes, including slicing, dicing, lapping, grinding, and polishing. The ideal candidate has strong mechanical aptitude, attention to detail, and the ability to maintain high-quality standards while working within tight tolerances.
Candidates with crystal fabrication, optical fabrication, precision manufacturing, machining, or other hands-on technical experience are encouraged to apply. Training may be provided for qualified candidates.
RESPONSIBILITIES
Set up, operate, and monitor crystal and optical fabrication equipment.
Perform routine equipment maintenance
Perform boule slicing, dicing saw operations, lapping, grinding, and polishing of optical and crystalline materials.
Inspect components using precision measuring tools and optical metrology equipment.
Read and interpret blueprints, work orders, travelers, and process documentation.
Maintain dimensional and cosmetic quality requirements while meeting production goals.
Make basic machine and process adjustments as needed.
Support continuous improvement, process documentation, and production floor initiatives.
Collaborate with manufacturing and engineering teams to improve productivity, quality, and efficiency.
Follow all safety procedures and maintain a clean, organized work environment.
QUALIFICATIONS
Experience with crystal fabrication processes, including slicing, dicing, lapping, and polishing preferred.
Strong mechanical aptitude and attention to detail.
Ability to use precision measuring tools and maintain close tolerances.
Ability to read technical drawings and manufacturing documentation.
Knowledge of optical, glass, or crystal materials is a plus.
Strong communication, teamwork, and problem-solving skills.
High School Diploma or GED required.
EXPERIENCE
Ideal candidate will have 3-5 years of experience in crystal fabrication, optical fabrication, precision manufacturing, machining, or a related technical field
Experience with CNC or conventional fabrication equipment is highly desirable.
Additional experience with wafer fabrication preferred but not required
PHYSICAL REQUIREMENTS
Ability to stand for extended periods and lift up to 50 lbs.
Comfortable performing repetitive tasks and monitoring multiple machines.
Ability to work in a manufacturing environment with machinery and moderate to loud noise levels.
Must be able to wear required PPE.
Requirements
Equal Opportunity Employer: The Company is committed to providing equal employment opportunities for all employees and applicants for employment. The Company does not discriminate in employment opportunity or practices on the grounds of gender, race, religion or belief, age, disability, sexual orientation, gender identity, protected veteran status, or any other characteristic protected by national laws under which the Company operates.
Additional Information: This position may involve access to items and technical data controlled under U.S. export laws and regulations. Candidates will be evaluated based on their status as "U.S. persons" as defined under the EAR (15 C.F.R. Part 772) and the ITAR (22 C.F.R. § 120.15).
Salary Description
$25-$30/hourly
| Location | Fremont, CA |
| Industry | Manufacturing - Other |
| Salary | $25–$30 Per Hour |
| Company Size | 500 to 999 employees |
| Year Founded | 1948 |
| Website | https://gandh.com/ |
G&H was founded G&H in Ilminster, Somerset in 1948. The core skills at the time were centered on manufacturing scientific optical components and crystalline materials. These skills are still very much at the cornerstone of the current operations at Ilminster with global sales of acousto-optics, crystal optics and precision optics. The company now works as a supply chain partner in aerospace & defence, industrial, life science and scientific research sectors providing systems and components based on a broad range of photonic technologies.
From its origins as a craft-based optical engineering company rich in practical optical manufacturing skills, G&H has undergone a transformation over the last twenty years into a high-technology photonics business through an acquisition policy of the best-in-breed companies in individual technology areas . The company now has manufacturing sites in the US in California, New Hampshire, Maryland, Massachusetts, Ohio, and Virginia, in addition to its three UK facilities located in Ashford, Ilminster, Glenrothes, St Asaph, and Torquay, and Shanghai, China.
In 1997 G&H was admitted to the alternative investment market (AIM) on the London Stock Exchange. Today the company comprises eight manufacturing sites, with sales offices in France, Germany, Hong Kong, Japan and Singapore with additional representation by a global network of distributors.
We have three core business:
AEROSPACE AND DEFENCE, INDUSTRIAL & TELECOM, LIFE SCIENCES, AND BIOPHOTONICS with our expertise centering on the four technologies:
ACOUSTO-OPTICS - Vertically integrated acousto-optics (AO) manufacturing begins with the growth of lithium niobate (LiNbO3) and tellurium dioxide (TeO2) crystals used in AO devices. We orientate, cut, shape and polish crystals before they can be coated. Transducers are wire bonded and devices are packaged. We design drivers suitable for each product range.

ELECTRO-OPTICS - Our electro-optics (EO) manufacturing is also integrated. We grow our own crystal: Beta barium borate (BBO), Cadmium sulfide (CdS), Cadmium selenide (CdSe), Potassium dihydrogen phosphate (KDP), Potassium dideuterium phosphate (KD*P) and Tellurium dioxide (TeO2). Each material has different optical properties and we design and manufacture EO Pockel cells for a range of applications based on these. We also design and manufacture drivers to control and optimize Pockel cell performance for advanced laser systems.

FIBER OPTICS - We are renowned for our active and passive components and photonic modules. We are able to provide high performance space- and Telcordia-qualified products for use in all-fiber systems. Our expertise encompasses challenging areas such as manufacturing HI-REL fused components for under-sea and space deployment, working with challenging materials such as PCF or chalcogenide, and designing and testing low SWaP modules for use in rugged environments.

PRECISION OPTICS - We design and manufacture precision optics components and assemblies that few other companies can. Our planar, aspheric, prism and waveplate products are globally acclaimed. G&H precision PO capabilities cover a wide range of specialized manufacturing techniques from crystal growth, polishing including superpolishing, single point diamond turning, magneto optical finishing (MTF), segmented waveplates, anti-reflection, high reflection, and high laser damage threshold (HLDT) coatings, and adhesive free bonding. Furthermore aerospace and defense prime contractors rely on G&H to design and manufacture complex opto-mechanical assemblies.

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