Mechanical Engineer Visa Sponsorship Jobs in California
California is one of the strongest states for mechanical engineer visa sponsorship, with major employers across aerospace, defense, semiconductors, and clean energy. Companies like Lockheed Martin, Apple, Tesla, and Northrop Grumman hire internationally across hubs in Los Angeles, San Jose, San Diego, and the Bay Area.
Find Mechanical Engineer JobsOverview
Showing 5 of 1,802+ Mechanical Engineer Jobs in California with Visa Sponsorship
Have you applied for this role?
Have you applied for this role?
Have you applied for this role?
Have you applied for this role?
Have you applied for this role?
See all 1,802+ Mechanical Engineer Jobs in California with Visa Sponsorship
Sign up for free to unlock all listings, filter by visa type, and get alerts for new Mechanical Engineer Jobs in California with Visa Sponsorship.
Get Access To All JobsINTRODUCTION
Therm-x of California is the leading manufacturer for Advanced Temperature and Control Systems for Hi-Technology industries. We have been in business for over 30 years and have a diverse customer base. We offer competitive pay, and a comprehensive benefits package.
ROLE AND RESPONSIBILITIES:
The Mechanical Engineer is part of Therm-x's NPI Engineering team — the group that takes new heater, sensor, source, filter, junction, and cathode designs from customer concept through working prototype and into production. The role owns mechanical design and 3D modeling for assemblies with demanding thermal and mechanical performance requirements, builds and tests the first prototypes alongside our machinists and technicians, and partners with manufacturing, purchasing, and outside suppliers so that what is designed is what we can build.
This is a hands-on role. The strongest engineers on this team spend real time in the shop, learn how the parts they design are actually machined, brazed, and assembled, and iterate fast when test data does not match the model. We are looking for engineers who want to design, build, test, and improve.
Responsibilities and Duties:
- Review customer requirements: BOMs, 2D & 3D drawings, specifications, and acceptance criteria.
- Develop mechanical designs and 3D models (SolidWorks, Inventor, or Solid Edge) for new assemblies and product variants.
- Prepare manufacturing drawings, including pre-braze / pre-weld details, GD&T callouts, and finished-part drawings.
- Author OMS (Operational Method Sheets): manufacturing process flow, BOM, and work instructions.
- Estimate part fabrication and assembly time; contribute to materials and labor costing.
- Build and test prototypes hands-on, working directly with the prototype machinist, NPI technicians, and the production shop.
- Run prototype testing (thermal cycling, thermal uniformity, dimensional, and functional) and document findings.
- Produce First Article Inspection (FAI) reports and own ECR/ECO redlines through the change cycle.
- Track project timeline, cost, and risks; keep the project on budget and on schedule; escalate early when it is not.
- Spend time on the shop floor. Solicit input from machinists, operators, and quality, and carry that feedback into the next design revision.
Level III & SR
- Lead full mechanical design for new product families, including stress and thermal analysis.
- Own supplier interfaces for machined and brazed parts; negotiate cost and delivery to meet customer requirements.
- Run formal design reviews and contribute to customer proposals and technical content.
- Mentor Level I and II engineers; review their drawings and FAIs before release.
- Build and maintain reusable design libraries, templates, and analysis methods so the team gets faster over time.
DESIRED SKILLS:
- Strong 3D modeling — SolidWorks, Autodesk Inventor, or Solid Edge — including assemblies, configurations, and drawings with GD&T.
- Ability to read and interpret assembly drawings, blueprints, and basic electrical schematics.
- Thermal application experience — heater systems, temperature sensing, or thermal management. Familiarity with brazing, welding, and ceramics is a strong plus.
- Strong written communication: clear drawings, FAIs, and technical memos.
- Project management discipline: schedule, cost, and risk tracked weekly.
- Hands-on by default. Comfortable in safety glasses on a CNC mill, lathe, or assembly bench.
- Collaborative with machinists, operators, purchasing, and customers. Treats shop-floor feedback as a primary input, not an interruption.
- Curious and learns fast. Therm-x's product mix is broad, and the strongest engineers build a deep mental model of how our products work in our customers' tools.
Level III, SR
- Thermal and structural FEA — COMSOL preferred for thermal; ANSYS or Inventor Stress acceptable for mechanical.
- Electrical drafting capabilities — AutoCAD Electrical (ACADE) or equivalent is a plus.
- Working knowledge of SPC, lean manufacturing, Six Sigma, and 8D problem-solving.
- Ability to lead design reviews and mentor junior engineers.
Physical Demands:
While performing the duties of this Job, the employee is regularly required to stand; walk; sit; use hands to finger, handle, or feel; reach with hands and arms
INTRODUCTION
Therm-x of California is the leading manufacturer for Advanced Temperature and Control Systems for Hi-Technology industries. We have been in business for over 30 years and have a diverse customer base. We offer competitive pay, and a comprehensive benefits package.
ROLE AND RESPONSIBILITIES:
The Mechanical Engineer is part of Therm-x's NPI Engineering team — the group that takes new heater, sensor, source, filter, junction, and cathode designs from customer concept through working prototype and into production. The role owns mechanical design and 3D modeling for assemblies with demanding thermal and mechanical performance requirements, builds and tests the first prototypes alongside our machinists and technicians, and partners with manufacturing, purchasing, and outside suppliers so that what is designed is what we can build.
This is a hands-on role. The strongest engineers on this team spend real time in the shop, learn how the parts they design are actually machined, brazed, and assembled, and iterate fast when test data does not match the model. We are looking for engineers who want to design, build, test, and improve.
Responsibilities and Duties:
- Review customer requirements: BOMs, 2D & 3D drawings, specifications, and acceptance criteria.
- Develop mechanical designs and 3D models (SolidWorks, Inventor, or Solid Edge) for new assemblies and product variants.
- Prepare manufacturing drawings, including pre-braze / pre-weld details, GD&T callouts, and finished-part drawings.
- Author OMS (Operational Method Sheets): manufacturing process flow, BOM, and work instructions.
- Estimate part fabrication and assembly time; contribute to materials and labor costing.
- Build and test prototypes hands-on, working directly with the prototype machinist, NPI technicians, and the production shop.
- Run prototype testing (thermal cycling, thermal uniformity, dimensional, and functional) and document findings.
- Produce First Article Inspection (FAI) reports and own ECR/ECO redlines through the change cycle.
- Track project timeline, cost, and risks; keep the project on budget and on schedule; escalate early when it is not.
- Spend time on the shop floor. Solicit input from machinists, operators, and quality, and carry that feedback into the next design revision.
Level III & SR
- Lead full mechanical design for new product families, including stress and thermal analysis.
- Own supplier interfaces for machined and brazed parts; negotiate cost and delivery to meet customer requirements.
- Run formal design reviews and contribute to customer proposals and technical content.
- Mentor Level I and II engineers; review their drawings and FAIs before release.
- Build and maintain reusable design libraries, templates, and analysis methods so the team gets faster over time.
DESIRED SKILLS:
- Strong 3D modeling — SolidWorks, Autodesk Inventor, or Solid Edge — including assemblies, configurations, and drawings with GD&T.
- Ability to read and interpret assembly drawings, blueprints, and basic electrical schematics.
- Thermal application experience — heater systems, temperature sensing, or thermal management. Familiarity with brazing, welding, and ceramics is a strong plus.
- Strong written communication: clear drawings, FAIs, and technical memos.
- Project management discipline: schedule, cost, and risk tracked weekly.
- Hands-on by default. Comfortable in safety glasses on a CNC mill, lathe, or assembly bench.
- Collaborative with machinists, operators, purchasing, and customers. Treats shop-floor feedback as a primary input, not an interruption.
- Curious and learns fast. Therm-x's product mix is broad, and the strongest engineers build a deep mental model of how our products work in our customers' tools.
Level III, SR
- Thermal and structural FEA — COMSOL preferred for thermal; ANSYS or Inventor Stress acceptable for mechanical.
- Electrical drafting capabilities — AutoCAD Electrical (ACADE) or equivalent is a plus.
- Working knowledge of SPC, lean manufacturing, Six Sigma, and 8D problem-solving.
- Ability to lead design reviews and mentor junior engineers.
Physical Demands:
While performing the duties of this Job, the employee is regularly required to stand; walk; sit; use hands to finger, handle, or feel; reach with hands and arms
Mechanical Engineer Job Roles in California
See all 1,802+ Mechanical Engineer Jobs in California
Sign up for free to filter by visa type, set job alerts, and find employers with verified sponsorship history.
Search Mechanical Engineer Jobs in CaliforniaMechanical Engineer Jobs in California: Frequently Asked Questions
Which companies sponsor visas for mechanical engineers in California?
California's largest mechanical engineering sponsors include Lockheed Martin, Northrop Grumman, and Raytheon in the defense and aerospace sector, Apple and Intel in consumer electronics, Tesla and Rivian in electric vehicles, and SpaceX in commercial space. Medical device companies like Edwards Lifesciences and Intuitive Surgical also sponsor regularly, particularly for roles in product development and manufacturing engineering.
Which visa types are most common for mechanical engineer roles in California?
The H-1B visa is the most common visa for mechanical engineers in California, as the role typically qualifies as a specialty occupation requiring at least a bachelor's degree in mechanical engineering or a closely related field. Engineers from Australia may use the E-3 visa, Canadians and Mexicans the TN visa under USMCA, and candidates with exceptional credentials may pursue the O-1A. Employers generally file the relevant petition directly.
Which cities in California have the most mechanical engineer sponsorship jobs?
The San Francisco Bay Area and Silicon Valley concentrate the most sponsorship activity, driven by semiconductor, hardware, and clean energy employers. Los Angeles and the South Bay (El Segundo, Long Beach, Torrance) anchor aerospace and defense hiring. San Diego has a strong cluster in defense systems and biomedical devices. Sacramento and Fresno see demand from infrastructure, water systems, and agricultural equipment sectors.
How to find mechanical engineer visa sponsorship jobs in California?
Migrate Mate filters job listings specifically for visa sponsorship, letting you browse mechanical engineer roles in California without sorting through positions that exclude international candidates. The platform surfaces employers actively hiring foreign nationals, covering industries from aerospace in Los Angeles to clean energy in the Bay Area. Searching by role and state on Migrate Mate is the most direct way to identify relevant openings.
Are there any California-specific factors mechanical engineers should know about visa sponsorship?
California's prevailing wage requirements under the H-1B program are generally higher than the national average, reflecting the state's cost of living, particularly in the Bay Area and Los Angeles metro. University pipelines from UC Berkeley, UCLA, Caltech, and Stanford feed heavily into local employer sponsorship programs. Defense roles at some California employers may also require security clearances, which can complicate or limit sponsorship for certain nationalities.
What is the prevailing wage for sponsored mechanical engineer jobs in California?
U.S. employers sponsoring a visa must pay at least the prevailing wage, which is what workers in the same role, area, and experience level typically earn. The Department of Labor sets this rate to make sure companies aren't hiring foreign workers simply because they'd accept lower pay than a U.S. worker. It varies by job title, location, and experience. You can look up current prevailing wage rates for any occupation and location using the OFLC Wage Search page.