Tooling Engineer-1
- Pay
- $122,600 – $168,600 per year
- Location
- Libertyville, IL
- Listed
- 3 days ago
About the role
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 Tooling Engineer located in Libertyville, IL.
Reporting to the Sr. Process Engineering Manager, the potential candidate would be responsible for designing and engineering tooling protocols for molds, jigs and fixtures as required to meet products specifications.
What a typical day looks like
- Prepare and maintain documentation related to tool room equipment. Lead design and engineering of complex injection molds to meet product and process requirements.
- Review and approve mold designs for multi-cavity, tight-tolerance tools including hot runner and valve gate systems.
- Own Design for Manufacturability (DFM) and Design for Tooling reviews with internal teams and toolmakers.
- Evaluate and approve mold flow analysis results and recommend design changes based on simulation and processing needs.
- Define tooling specifications including steel selection, cooling strategy, gating, venting, ejection, and wear components.
- Serve as technical lead with tool vendors from concept through design, build, FAT, and tool qualification.
- Support mold trials, sampling and validation activities; analyze results and drive corrective actions.
- Troubleshoot complex tooling and part quality issues (flash, sticking, warp, cosmetic defects, dimensional variation).
- Implement cost-effective tooling improvements to increase robustness, cycle time performance, and tool life.
- Review and interpret tool design files and clearly communicate design intent to cross-functional stakeholders.
- Establish tooling standards, best practices, and preventive maintenance recommendations.
- Support process control strategy development in partnership with process engineering.
- Provide regular tooling status updates and technical risk assessments to program and engineering leadership.
- Maintain tooling documentation including design records, change history, qualification reports, and maintenance plans.
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
Application Deadline
Applications for this job position will be accepted for at least five days following the job posting start date below and continuing until the end date below or until the position is filled. This posting may close sooner due to application volume.
Job Posting Start Date 11-03-2026 Job Posting End Date 12-04-2026
The base pay range for this position is provided below. The final base rate offered will be determined using job-related, non-discriminatory criteria, including but not limited to experience, qualifications, geographic location, education, external market data, and internal equity.
- $122,600.00 USD - $168,600.00 USD Annual
- Job Category
- Production Engineering
- Is Sponsorship Available?
- No
The experience we're looking to add to our team
- Bachelor's Degree in related field or equivalent experience and training for 8+ years of related experience in thermoplastics, thermosets, injection molding (e.g. product design, validation of tools), mold flows, troubleshooting and resolving tooling issues, strong familiarity with molding processes.
- Demonstrated capability troubleshooting tooling-related defects and performance issues.
- Experience working directly with external toolmakers and global suppliers.
- Ability to read and interpret complex CAD models and tooling assemblies.
- Strong understanding of injection molding processes and their interaction with tool design.
- Experience with multi-cavity mold design and validation, Engineering plastics including PC/ABS, Acetal (POM), and similar resins, Hot runner and valve gate systems, Tight tolerance and cosmetic parts
Equal opportunity and legal notices
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 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).
From Flextronics's careers page, first listed on Rolev.ai on November 6, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
Rolev.ai is a job search and application tool for US job seekers. For this Tooling Engineer-1 role at Flextronics, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.
See how you fit
Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.
Tailor without inventing
Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.
Draft the full kit
Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.
1-Click Extension Autofill
The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.
Similar roles
- Tooling EngineerMultimatic · Fort Wayne, IN
- Tooling Engineer, Plastic Injection Molding (Starlink)SpaceX · Bastrop, TX
- Tooling EngineerNgc · United States-West Virginia-Rocket Center · $72.1k – $108k/yr
- Tooling EngineerLydech Thermal Acoustic Solutions (TAS) · Hamptonville, NC
- Tooling EngineerSika AG · Grandview, MO
- Tooling Engineer, SentryAnduril · Irvine, CA
Common questions
What is the salary for the Tooling Engineer-1 role at Flextronics?
The Tooling Engineer-1 posting at Flextronics states compensation of $122,600 – $168,600 per year. Final pay may depend on location, experience, and interview evaluation on Flextronics's official career site.
Where is the Tooling Engineer-1 job at Flextronics located?
This Tooling Engineer-1 position at Flextronics is located in Libertyville, IL. Always check Flextronics's application page for specific state eligibility or relocation policies.
How do I apply for the Tooling Engineer-1 position at Flextronics?
This listing links directly to Flextronics's Workday application page. You can apply directly on Flextronics's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Workday application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.