New

Senior Mechanical Engineer

Molex
life insurance, parental leave
United States, California, Carlsbad
May 22, 2026
Your Job We are seeking an experienced Senior Mechanical Engineer to support new product development projects for the optical transceiver team out of our Carlsbad, CA office. This position will play a key role in all phases of the product development cycle, from concept through production. We are seeking an experienced mechanical engineer, well versed in producing high quality designs, performing stress analysis, and FEA-driven design optimization. Our Team Molex is a leading innovator in the optoelectronics industry, specializing in the development and production of high-performance optical transceivers. Our commitment to cutting-edge technology and excellence drives us to push the boundaries of optical communication systems. What You Will Do Design, model, simulate, and optimize mechanical designs and models Create test plans, technical documents, reports, and presentations Perform tolerance analysis, characterize devices, generate engineering changes, release drawings for fabrication, evaluate vendors, analyze issues and determine root cause Work with and/or mentor other team members to optimize and finalize design for full production and to meet all specifications Provide technical guidance to engineers and technicians. Provide technical support for customers and suppliers Support process development and production teams Perform and/or support design verification, reliability, and failure analysis to ensure that design meets all specifications and customer requirements Perform other related duties as assigned by management Who You Are (Basic Qualifications) B.S. in Mechanical Engineering or a related field 5+ years of professional experience with 3+ years of hands-on experience in mechanical design High proficiency in 3D modeling and 2D drafting using NX, SolidWorks, or similar CAD platforms Expertise in GD&T Experience in applying statistical tolerance stack-up techniques High proficiency in performing stress analysis and FEA-driven design optimization Proficiency in Product Lifecycle Management tools Experience in cross-functional collaboration between departments to achieve project goals Strong organizational skills with the ability to manage multiple tasks and priorities while maintaining exceptional attention to detail Ability to deliver clear, concise, and professional communication to support vendor and customer relationships What Will Put You Ahead MS or PhD degree in Mechanical Engineering, Physics, Applied Physics, Optics, or related field related technical discipline Familiarity with optical alignment, die attach, and optoelectrical packaging Experience with thermal design/simulation, and familiarity with thermal interface materials Experience in DFMEA principles For this role, we anticipate paying $120,000 - $160,000 per year. This role is eligible for variable pay, issued as a monetary bonus or in another form. At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy. Hiring Philosophy All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here. Who We Are As a Koch company, Molex is a leading supplier of connectors and interconnect components, driving innovation in electronics and supporting industries from automotive to health care and consumer to data communications. The thousands of innovators who work for Molex have made us a global electronics leader. Our experienced people, groundbreaking products and leading-edge technologies help us deliver a wider array of solutions to more markets than ever before. At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company. Our Benefits Our goal is for each employee, and their families, to live fulfilling and healthy lives. We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most. Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance. Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region. If you have questions on what benefits apply to you, please speak to your recruiter. Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results. Equal Opportunities Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E-Verify. Please click here for additional information. (For Illinois E-Verify information click here, aqui, or tu). #LI-JM3