Mechanical Design Engineer

Posted 4 Days Ago
Be an Early Applicant
Austin, TX, USA
In-Office
Senior level
Hardware • Other • Appliances
The Role
Design and validate tooling, jigs, and fixtures using 3D CAD and FEA; lead strain testing and material characterization; create and release detailed drawings; manage supplier sourcing and fabrication; support manufacturability improvements, tolerance analysis, and production roadmaps; provide floor-level technical support and project management for key accounts.
Summary Generated by Built In
Job Posting Start Date 06-09-2026 Job Posting End Date 06-30-2026

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.

A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

Job Summary

To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a/an Mechanical Design Engineer located in Austin TX.

 

Reporting to the Mechanical Design Engineering Manager the Mechanical Design Engineer will be responsible for designing, validating, and implementing innovative and cost-effective product solutions of complex scope in order to support the organization in prototype development through full-scale production.

 

Shift Hours: 6:00 am - 4:30 pm (Wed- Sat)

What a typical day looks like:

 

  • Apply complex design practices and procedures to assigned program areas to create custom tooling, jigs and fixtures with standard processes such as CNC milling/turning and Additive Manufacturing
  • Leads end-to-end strain testing activities, including test setup specification, execution oversight of engineers/technicians, and comprehensive data review, analysis, and interpretation to ensure accurate characterization of material behavior and performance trends
  • Create and release detailed drawings and interface with machine shop for quote and completion
  • Manage sourcing and deliveries from suppliers for fabrication of tools/fixtures and equipment
  • Work with other members of the development team to support manufacturing tooling design initiatives
  • Drive creation of production and technology roadmaps that support customer expectations
  • Develop and support design improvements that enhance manufacturability and assembly while minimizing costs
  • Provide complex technical support to manufacturing floor to enhance manufacturability and assembly while minimizing costs
  • Perform Tolerance Analysis and make recommendations
  • Project Management on key customer accounts.

 

The experience we’re looking to add to our team

 

  • Applies advanced analytical techniques (e.g., FEA correlation) to predict material behavior under complex loading conditions
  • Experienced in developing and validating test methods to characterize material performance, including tensile, compression, and cyclic loading scenarios
  • Translates material data into design guidance, enabling optimized component performance, reliability, and manufacturability in engineering applications
  • Must have at least 4 years of experience designing tooling and creating drawings in Solid works
  • Must have at least 6 years of experience in stress–strain analysis and material characterization
  • 3D CAD Experience (Solid works preferred)
  • Drawing creation and release experience
  • Strong verbal, presentation and written communication skills
  • Self-motivated, high energy and strong time management skills
  • Strong organizational, analytical and problem-solving skills
  • Ability to work in teams and collaborate with others
  • Demonstrated leadership skills and team orientation

 

Here are a few of our preferred experiences,

 

  • 3D CAD Experience in one or more of the following: Solid works, Fusion 360, NX, Creo.
  • 3D Printing Experience
  • Manual or CNC Milling/Lathe Experience
  • Introductory Understanding of GD&T / Dimensional Management

 

 

SD20

What you'll receive for the great work you provide:

  • Full range of medical, dental, and vision plans
  • Life Insurance
  • Short-term and Long-term Disability
  • Matching 401(k) Contributions
  • Vacation and Paid Sick Time
  • Tuition Reimbursement
Job CategoryProduction Engineering

Relocation: Not eligible

Is Sponsorship Available?

No

Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email [email protected] and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).

Skills Required

  • At least 4 years designing tooling and creating drawings in SolidWorks
  • At least 6 years experience in stress-strain analysis and material characterization
  • Experience applying advanced analytical techniques (e.g., FEA correlation)
  • Experience developing and validating test methods for material performance (tensile, compression, cyclic)
  • 3D CAD experience (SolidWorks preferred)
  • Drawing creation and release experience
  • Ability to perform tolerance analysis and make recommendations
  • Strong verbal, presentation, and written communication skills
  • Self-motivated with strong time management, organizational, analytical and problem-solving skills
  • Demonstrated leadership skills and ability to work in teams
  • Experience with sourcing and managing supplier fabrication/deliveries
  • Experience with CNC milling/turning or additive manufacturing for tooling fabrication
  • 3D CAD experience in Fusion 360, NX, or Creo
  • 3D printing / additive manufacturing experience
  • Manual or CNC milling/lathe experience
  • Introductory understanding of GD&T / dimensional management

Flex Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Flex and has not been reviewed or approved by Flex.

  • Healthcare Strength Health, dental, and vision coverage begin on day one with options for dependents, alongside disability, life, mental‑health resources, and fertility/adoption and gender transition support. Plan choice and wellness programs indicate a robust healthcare offering.
  • Leave & Time Off Breadth Paid holidays, paid sick time, company‑wide shutdown days, and in some cases unlimited PTO point to extensive time‑off provisions. Flexible and hybrid work arrangements in certain teams further support work‑life balance.
  • Strong & Reliable Incentives Quarterly bonus checks and performance bonuses supplement base pay, and some roles can earn overtime at 1.5x. These elements strengthen the reliability of cash incentives.

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The Company
HQ: Austin, Texas
52,479 Employees
Year Founded: 1969

What We Do

We’re the manufacturing partner of choice that helps a diverse customer base design and build products that improve the world. We love to hear your thoughts, comments and ideas so feel free to like, share and comment away. Any question or opinion is good to go as long as it is respectful and falls within the scope of this page. Derogatory comments, spam and unsolicited selling are not welcome here and such posts will be removed.

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