Mechanical Design Engineer – fluent German (m/f/d)

Molex; Aschheim; On-site; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Flexible Work Hours

30 vacation days per year

13 months’ salary plus annual review

Corporate Benefits access

Urban Sports Club / EGYM Wellpass

JobRad bicycle leasing

Company pension plan

Company accident insurance

External Employee Assistance Program (

EAP

Job summary

Molex is seeking a Mechanical Design Engineer fluent in German to support development, validation, and qualification of connector and interconnect products. You will design mechanical parts, assemblies, and test fixtures, and perform mechanical, environmental, and reliability testing to back product development and customer requirements.

The role blends CAD design, prototyping, and laboratory testing in a hands‑on environment, collaborating with Product Engineering, Manufacturing, Quality, and

Qualifications

• Bachelor’s degree in mechanical engineering or related field.
• Hands-on design experience with CAD, prototyping, and lab testing.
• Familiarity with GD&T, tolerance analysis, and documentation.

Responsibilities

• Design mechanical parts, assemblies, and test fixtures using 3D/2D CAD and GD&T.
• Develop and execute mechanical, environmental, and reliability tests for connector products.
• Build and troubleshoot prototypes, test fixtures, and harness assemblies.
• Analyze test results and prepare technical documentation for reviews and qualification activities.
• Support DFMEA, tolerance analysis, DFM/ DFA, and design improvements with cross-functional teams.
• Manage engineering documentation, CAD files, BOMs, and changes in PLM/PDM systems.

Skills

CAD design

3D/2D CAD (SolidWorks, Creo)

GD&T

Tolerance analysis

Prototyping & testing

Laboratory skills

Data analysis

Documentation & reporting

Education

Bachelor’s degree in mechanical engineering

Tools

PLM/PDM systems

SolidWorks/Creo

Job description

Mechanical Design Engineer – fluent German (m/f/d)

Molex is currently seeking a Mechanical Design Engineer to support the development, validation, and qualification of connector and interconnect products.

This role combines hands‑on laboratory engineering with mechanical design, giving you the opportunity to take concepts from CAD and prototype development through testing and technical validation. You will design mechanical parts, assemblies, and test fixtures while performing mechanical, environmental, and reliability testing to support product development and customer requirements.

The ideal candidate is a pragmatic, hands‑on engineer with solid mechanical design fundamentals who enjoys combining CAD design, prototyping, testing, problem‑solving, and data analysis in an engineering laboratory environment.

Our Team

You will work as part of a collaborative engineering environment supporting the development and qualification of connector systems and related electromechanical products. The role works closely with Product Engineering, Manufacturing, Quality, and Supplier teams to resolve design and testing challenges, improve product manufacturability, and ensure solutions meet technical and customer requirements.

This is a particularly hands‑on position for an engineer who enjoys validating engineering concepts experimentally and working across both product design and laboratory testing activities.

What You Will Do

• Design mechanical parts, assemblies, and test fixtures using 3D/2D CAD, and create engineering drawings incorporating GD&T principles.
• Develop and execute mechanical, environmental, and reliability tests for connector products, including electrical, thermal, vibration, humidity, and mating‑cycle testing.
• Build and troubleshoot prototypes, test fixtures, and harness assemblies, using appropriate laboratory equipment and hands‑on assembly techniques.
• Analyse test results and prepare technical documentation to support design reviews, qualification activities, and customer requirements.
• Support DFMEA, tolerance analysis, DFM/DFA, and design improvement activities, collaborating with Product Engineering, Manufacturing, Quality, and Supplier teams.
• Manage engineering documentation, CAD files, BOMs, and design changes through PLM/PDM systems, while supporting laboratory equipment, calibration, and safety requirements.

Who You Are (Key Requirements)

• Bachelor’s degree in mechanical engineering, Mechatronics, Materials Science, or a related engineering discipline.
• Solid hands‑on professional experience in mechanical/electrical design, prototype fabrication, or engineering test laboratory environments.
• Proficiency with 3D/2D CAD, such as SolidWorks, Creo, or equivalent, including assemblies, surfacing, and engineering drawing creation.
• Good understanding of mechanical engineering fundamentals, including tolerance analysis, GD&T, material properties, fasteners, and basic mechanisms.
• Practical laboratory skills, including building test fixtures, wiring harnesses, basic soldering, and operating common test equipment.
• Strong analytical and problem‑solving skills with good attention to detail.
• Strong written and verbal communication skills with the ability to prepare clear technical documentation and reports.

What Will Put You Ahead

• Experience in connector or electromechanical product design, including testing such as contact resistance, insulation resistance, and high‑voltage.
• Experience with engineering standards, FEA/simulation, and product validation within an R&D or qualification environment.
• Knowledge of manufacturing processes, including injection molding, metal stamping, and plating.
• Familiarity with PLM/PDM and manufacturing systems, along with exposure to Lean/continuous improvement and project management.

What We Offer

• Flexible Work Hours
• 30 vacation days per year and special leave for specific occasions
• 13 months’ salary plus an annual salary review
• Attractive offers from leading brands through Corporate Benefits
• Subsidized membership in the Urban Sports Club or EGYM Wellpass
• JobRad® bicycle leasing
• Company pension plan
• Company accident insurance
• External Employee Assistance Program (EAP)

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.

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.

Our Business Philosophy

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.

Additionally, everyone has individual work and personal needs. Weseekto enable the best work environment that helps you and the business work together to produce superior results.