Sr. Manufacturing Manager

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

Flex intends to spin off its Cloud and Power Infrastructure segment into a new, independent publicly traded company, Axiom, with the spin planned for Q1 2027. If the intended spin occurs, this role will support Axiom, a company focused on critical digital infrastructure and delivering end-to-end power and thermal management solutions for AI data centers and other mission-critical applications.

To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Sr. Manufacturing Manager located in Fontana, CA.

Reporting to the Director of Manufacturing, the Sr. Manufacturing Manager role is responsible for overseeing the day-to-day production activities, ensuring that all departments are managed and performing efficiently and effectively. This position is responsible for aligning the manufacturing production operations of the organization with established corporate mission and subsequent goals.

What a typical day looks like:

· Participates in the hiring and training of departmental managers.

· Organizes and oversees the work and schedules of the production departments

· Works closely with functional partners on production schedule & resource management

· Conducts performance evaluations that are timely and constructive, with a focus on creating bench talent through organic growth

· Handles discipline and termination of employees as needed and in accordance with company policy.

· Establishes quantitative and qualitative metrics, guidelines, and standards by which the company’s efficiency and effectiveness can be evaluated; identifies opportunities for improvement.

· Reviews, analyzes, and evaluates business procedures within the Production Operations teams.

· Implements policies and procedures that will improve day-to-day operations.

· Ensures work environments are adequate and safe.

· Oversees manufacturing, facilities, & maintenance ensuring each is reaching goals set by departmental and company leadership.

· Plans, directs, controls, implements, evaluates, monitors, and forecasts budgets and resources in each division to achieve financial objectives.

· Communicates and explains new directives, policies, or procedures to managers; for major changes, meets with entire operations staff to explain changes, answer questions, and maintain morale.

· Creates the infrastructure of personnel and resources to enable the company to manufacture its products competitively and efficiently.

· Manages the training of staff in the Operational areas of fabrication, building assembly, switchgear and panel assembly/wiring.

· Creates an environment that furthers employee retention and growth

· Leads from a position of service; both internally and externally.

· Serves as the steward of company culture to all production departments.

· Improves customer service and satisfaction through policy and procedural changes.

· Leads coordination and integration of efforts among operations, engineering, technology, and quality divisions to produce smoother workflow and more cost-effective business processes.

· Projects a positive image of the organization to employees, customers, industry, and community.

· Responsible for managing budget and making budgetary requests for equipment, labor, operating supplies

· Performs other related duties as assigned.

The experience we’re looking to add to our team:

· Bachelor’s degree from an accredited institution; education may be substituted for relevant experience

· Extensive and diversified background with at least 10 years of related experience within a manufacturing or production-based environment.

· Must exhibit strong leadership and supervisory experience

· Must have strong experience in planning/scheduling work in a job shop environment

· Must exhibit strong ability to actively listen, delegate, problem solve and create an effective team spirit.

· Must exhibit good ability to attract new talent and build on existing staff through effective training and coaching.

· Must have demonstrated capability of improving production efficiency and throughput

· Superior verbal and written communication and interpersonal skills.

· Superior organizational and diplomacy skills.

· Extremely proficient in Microsoft Office Suite or related software.

· Excellent organizational skills and attention to detail.

· Excellent analytical, decision-making, and problem-solving skills.

JG25

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 10-14-2026 Job Posting End Date 12-18-2026

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.

$134,000.00 USD - $184,200.00 USD Annual

Job Category

Operations

Is Sponsorship Available?

NoFlex 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).