Sr. Mechanical Engineer

Job  Posted since 04-Mar-2026 Organization Smart Infrastructure Field of work Engineering Company Trayer Engineering Corporation Experience level Mid-level Professional Job type Full-time Work mode Office/Site only

Employment type

Permanent Location(s)
* Livermore - - United States of America
* San Leandro - - United States of America Senior Mechanical Engineer - Trayer Engineering Here at Siemens, we take pride in enabling sustainable progress through technology. We do this through empowering customers by combining the real and digital worlds. Improving how we live, work, and move today and for the next generation! We know that the only way a business thrive is if our people are thriving.

That's why we always put our people first. Our global, diverse team would be happy to support you and challenge you to grow in new ways. Who knows where our shared journey will take you? Transform the everyday with us! About Siemens Electrification & Automation The Electrification & Automation (E&A) Business Unit offers the full range of energy distribution systems and solutions for all markets and through all sales channels.

We provide reliable power distribution grids of today while investing in our Future Grids portfolio to create the power distribution grid of the future. We empower our people to stay resilient and relevant in a constantly changing world. We're looking for people who are always searching for creative ways to grow and learn. People who want to make a real impact, now and in the future.

Does that sound like you? Then it seems like you'd make a great addition to our team! This role will be based onsite in Livermore, CA. Create a better tomorrow with us! We are seeking a dynamic and experienced Sr. Mechanical Engineer to join our innovative team, specifically focusing on the mechanical design of new and existing switch gear products. In this role, you will be instrumental in providing design, standardization, prototyping, and qualification testing.

You'll apply your expertise to analyze complex problems, create innovative designs to resolve them, and ensure the performance, reliability, and manufacturability of our cutting-edge switch gear solutions, all while contributing to Siemens' mission of creating technology with purpose. You will make an impact with the following responsibilities:
* Switchgear Product Design & Development:
* Lead the mechanical design of new switch gear products and reconfigure existing product structures using existing, standardized components.
* Perform complex part and assembly design using Solid Works 3D modeling software, from concept through final design for production.
* Produce drawings and specifications for product lines, for use in sales catalogs.
* Introduce design simplification ideas to the Design Team to ensure performance, safety, quality, reliability, cost, and producibility.
* Analysis, Prototyping &

Qualification:

* Develop and support qualification test programs used by both on-site and 3rd party labs.
* Conduct advanced Finite Element Analysis (FEA) in the areas of mechanical structures, fluid flow, and heat transfer.
* Develop design prototypes and support production qualification, failure root-cause analysis, and Kinematics.
* Analyze problems and create designs to resolve them effectively.
* Collaboration & Technical Leadership:
* Provide support to other organizational teams on R&D for new switch gear design.
* Maintain focus on customer satisfaction through improved product reliability and cost reduction.
* Determine product requirements based on current and potential user input.
* Network and collaborate with other engineers and professionals, preserving and protecting company intellectual and technical capital.
* Maintain and preserve proper configuration management methodology for assembly and piece part drawings. You'll win us over by having the following qualifications:

Basic Qualifications:

* Bachelor's degree in Mechanical Engineering.
* Six (6) or more years of experience with component design analysis and validation.
* Strong experience in engineering development work and addressing production issues.
* Advanced Solid Works experience and strong CAD skills.
* Strong knowledge of Finite Element Analysis (FEA) modeling and simulation, including mechanical structures, fluid flow, and heat transfer.
* Strong knowledge of Kinematics.
* Proven ability to work independently in several aspects of the work.
* Excellent problem-solving skills.
* Excellent verbal and written communication skills.
* Must be eligible to work in the US with no sponsorship now or in the future.
* Open to < 25% travel.

Preferred Qualifications:

* Master's degree in Mechanical Engineering.
* Experience with the design of switch gear or similar electrical distribution equipment.
* Experience working with electrical components designs (breakers, busbars, control cabinets, etc..)
* Experience working with sheet metal, simulation studies, structural analysis, enclosure design.
* Excellent…