1

Flex Supervisor Jobs in Riverside, CA (NOW HIRING)

Crown Technical Systems, a Flex Company, is a leader in power distribution and protection systems ... Supervises and coordinates receiving, storing, inventory, holding and shipping product. Principle ...

Material Handler

Fontana, CA · On-site

$18.59 - $25.10/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Inform production supervisors of material status and consult with supervisor to determine how to ...

Material Handler

Fontana, CA · On-site

$18.59 - $25.10/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Inform production supervisors of material status and consult with supervisor to determine how to ...

Lead Sheet Metal Assembler

Fontana, CA · On-site

$21.68 - $29.81/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Partner with supervisor or production manager to reslove any issues that arise within department.

Shipping & Receiving Coordinator

Fontana, CA · On-site

$18.59 - $25.10/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Notifies supervisor of major discrepancies, over-shipments, or substitutions. * Stage received ...

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... At least 3 years of experience in a supervisory capacity (50 - 100 employees) * Experience in ...

Quality Control Inspector

Fontana, CA · On-site

$19.06 - $25.73/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Communicates with supervisor to determine appropriate recommendations and remedies for questions ...

Structural Welder

Fontana, CA · On-site

$21.96 - $29.64/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Notifies supervisor when faulty equipment or defective materials are discovered. * Complete all ...

Material Handler

Fontana, CA · On-site

$18.59 - $25.10/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Inform production supervisors of material status and consult with supervisor to determine how to ...

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Confer with supervisors or engineers to plan, review work activities, or to resolve production ...

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Notifies supervisor when faulty equipment or defective materials are discovered * Performs other ...

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Confer with supervisors or engineers to plan, review work activities, or to resolve production ...

Material Handler

Fontana, CA · On-site

$18.59 - $25.10/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Inform production supervisors of material status and consult with supervisor to determine how to ...

Panel Welder (2nd Shift)

Fontana, CA · On-site

$18.59 - $25.10/hr

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... Notifies supervisor when faulty equipment or defective materials are discovered * Performs other ...

next page

Showing results 1-20

Flex Supervisor information

See Riverside, CA salary details

$12

$31

$57

How much do flex supervisor jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for flex supervisor in Riverside, CA is $31.97, according to ZipRecruiter salary data. Most workers in this role earn between $22.55 and $38.12 per hour, depending on experience, location, and employer.

What is a flex supervisor?

Flex Supervisors are professionals who oversee multiple operational areas or shifts within a facility, such as a warehouse or distribution center. Unlike traditional supervisors who manage a single team or department, Flex Supervisors are responsible for ensuring smooth workflow across various teams or functions, adapting to changing needs and priorities. They handle staffing, training, and performance management, often stepping in to fill gaps or support high-demand areas. Their flexible approach helps maintain productivity and operational efficiency.

How does a flex supervisor typically coordinate with team members to manage fluctuating workloads?

As a Flex Supervisor, you'll regularly assess workflow demands and adjust team assignments to ensure productivity during peak and off-peak periods. This role often involves close communication with team members, providing real-time feedback, and reallocating resources to areas of greatest need. You'll also collaborate with other supervisors and departments to anticipate workload changes and maintain operational efficiency. Adaptability and strong organizational skills are essential for success in this dynamic environment.

What are the key skills and qualifications needed to thrive as a flex supervisor, and why are they important?

To thrive as a Flex Supervisor, you need strong leadership, organizational skills, and experience in operations management, often supported by a relevant degree or equivalent experience. Familiarity with warehouse management systems (WMS), scheduling software, and safety protocols is typically required. Excellent communication, adaptability, and problem-solving abilities are essential soft skills for managing diverse teams and shifting priorities. These competencies ensure efficient operations, high team performance, and the ability to respond effectively to dynamic workplace demands.

What is the difference between Flex Supervisor vs Warehouse Associate?

AspectFlex SupervisorWarehouse Associate
Required CredentialsHigh school diploma, leadership skills, sometimes certificationsHigh school diploma or equivalent, basic training
Work EnvironmentSupervisory role in warehouse or distribution centerHands-on tasks in warehouse setting
Employer & Industry UsageLogistics, distribution, manufacturingLogistics, retail, manufacturing

The Flex Supervisor oversees warehouse operations, manages staff, and ensures safety compliance, requiring leadership skills and relevant certifications. In contrast, a Warehouse Associate performs manual tasks like packing, loading, and inventory management. While both roles are integral to logistics operations, the Flex Supervisor holds a supervisory position with more responsibilities and oversight.

What are the most commonly searched types of Supervisor jobs in Riverside, CA?

The most popular types of Supervisor jobs in Riverside, CA are:

What cities near Riverside, CA are hiring for Flex Supervisor jobs?

Cities near Riverside, CA with the most Flex Supervisor job openings:

Infographic showing various Flex Supervisor job openings in Riverside, CA as of August 2026, with employment types broken down into 1% As Needed, 75% Full Time, 19% Part Time, 1% Temporary, 3% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $66,506 per year, or $32 per hour.

Inventory Control Supervisor

Flex

Fontana, CA • On-site

$61K - $84K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 5 days ago


Job description

Crown Technical Systems, a Flex Company, is a leader in power distribution and protection systems concentrating on sophisticated, state-of-the-art relay and control panels, medium voltage switchgear, and enclosures (power/control buildings/ E-Houses). We specialize in customized, turn-key solutions that ensure safe, secure, and reliable power distribution.

Working at Crown Technical Systems offers a dynamic and rewarding career path for individuals seeking to power the world. Through hands-on training, mentorship, and a culture of internal promotion, we empower you to reach your full potential and contribute to projects that truly matter.

Job Summary

General Purpose:

Operates and maintains the inventory of the warehouse. Supervises and coordinates receiving, storing, inventory, holding and shipping product.

Principle Accountabilities:

  • Reviews and monitors the timely confirmation and accuracy of inbound inventory, outbound shipments, and book adjustment transactions to ensure accurate inventory management records.
  • Coordinates and performs the taking of physical inventories in accordance with the manufacturers' requirements, investigates inventory variances; directs the performance of daily/weekly cycle accounts and adjusts inventory records if necessary.
  • Coordinates delivery/pick up of materials from supply room, if exists.
  • Coordinates the activities associated with product recalls upon request.
  • Monitors the activities associated with customer return shipments including overages, shortages and damages; communicates concealed damages to manufacturer.
  • Coordinates damaged and defective products, ensuring it is accounted for and properly handled by dumping, reconditioning, or returning to producing plant.
  • Supervises all inventory control personnel, if any, to achieve objectives relating to inventory control management, provides communication and suggests inventory improvements to supervisor.
  • Provides back up to purchasing agent, if necessary.
  • Keys receipts of materials, if necessary.
  • Perform other related duties as assigned by management.
  • Effectively communicate with associates and customers in person and via telephone, verbally and non-verbally to accomplish necessary objectives
  • Effectively review performance of subordinates, if any, to ensure compliance to requirements.
  • Must be able to shift priorities easily.

Office Skills: telephones, data entry, office software to include, word processing, spreadsheets, presentation package and database systems.

Ability to read, analyze and interpret general business periodicals, professional journals, technical procedures or governmental regulations. Ability to write reports, business correspondence and procedure manuals. Ability to effectively present information and respond to questions from groups of managers, clients, customers and the general public.

Ability to add, subtract, multiply and divide in all units of measure, using whole numbers, common fractions and decimals. Ability to compute rate, ratio and percent and to draw and interpret bar graphs.

Ability to solve practical problems and deal with a variety of concrete variables in situations where only limited standardization exists. Ability to interpret a variety of instructions furnished in written, oral, diagram or schedule form

Typically requires a Bachelor degree or equivalent experience. Typically requires 3 years of materials experience or experience using Manufacturing Requirements Planning (MRP) systems or related field.

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 07-13-2026 Job Posting End Date

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.

$61,200.00 USD - $84,200.00 USDAnnualJob CategoryGlobal Procurement & Supply Chain

Is Sponsorship Available?

No

Crown 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 accessibility@flex.com 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 Crown, you must complete the application process first).


Flex Personnel logo

About Flex Personnel

Sourced by ZipRecruiter

The Flex Team is made up of Staffing Industry experts committed to serving the needs of businesses and workers by bringing people together. We are guided by our Core values Integrity, Courtesy, and Respect. At Flex we bring Businesses and People together. We carefully assess both the needs of our Business clients and the complete profiles of each candidate, and then make the connections we believe will be most mutually beneficial. With offices in select markets throughout the Country, We are continually expanding our industry reach nationwide.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Dallas, TX, US

Social media