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Proponent Jobs in California (NOW HIRING)

Proponent, Inc

Accounts Receivable Specialist

Ontario, CA · On-site

$22 - $24/hr

Proponent is the world's largest independent, employee-owned distributor of aircraft parts, serving customers worldwide. With more than 600 employees across 14 global locations, we take pride in ...

Proponent, Inc

Supply Chain Coordinator

Ontario, CA · On-site

$25 - $28/hr

Proponent is the world's largest independent, employee-owned distributor of aircraft parts, serving customers worldwide. With more than 600 employees across 14 global locations, we take pride in ...

New

Proponent, Inc

Inspector Mechanical

Brea, CA · On-site

$35 - $38/hr

Proponent is the world's largest independent, employee-owned distributor of aircraft parts, serving customers worldwide. With more than 600 employees across 14 global locations, we take pride in ...

Proponent, Inc

Strategic Account Manager

Brea, CA · On-site

Proponent is the world's largest independent, employee-owned distributor of aircraft parts, serving customers worldwide. With more than 600 employees across 14 global locations, we take pride in ...

Jobsbridge

Big Data Architect

San Francisco, CA

$75 - $96.50/hr

... plus Proponent of and ability to guide development activities using a TDD approach. Qualifications HDFS, Web HDFS, HBase, Spark, HIVE, PIG, MapReduce, ZooKeeper and Kafka,RDBMS, O-R Additional ...

Jobsbridge

Big Data Architect

Long Beach, CA

$67 - $86.25/hr

... plus Proponent of and ability to guide development activities using a TDD approach. Qualifications HDFS, Web HDFS, HBase, Spark, HIVE, PIG, MapReduce, ZooKeeper and Kafka,RDBMS, O-R Additional ...

The Aleph Institute

Reentry Department Intern

Los Angeles, CA · On-site

$16.25 - $21.50/hr

We are a proponent for the reformation of the criminal justice system and the reduction of recidivism rates through alternative sentencing methods and reentry services. As an intern you will be ...

Apple

App Store Data Scientist

Cupertino, CA · On-site

... proponent of experimental test and design, and practical experience with interpreting observational results Excellent communication and presentation skills with meticulous attention to detail with ...

Turner's Outdoorsman

Warehouse Clerk

Rialto, CA · On-site

$16 - $19.25/hr

We take pride on profitability growth as well as understanding, practicing, and being a strong proponent of the Turner's brand and company culture. Responsibilities: * Flexibility to work occasional ...

Paramount Global Inc.

Be Seen First

Junior Staff Accountant

La Mirada, CA · On-site

$20 - $30/hr

Lastly, this individual must be a proponent of the company's culture with an emphasis on respect, integrity, communication and excellence. IDEAL CANDIDATE PROFILE CAN PROVIDE EXAMPLES OF PROVEN ...

Centrify

Director of Sales, Mid-Market

Santa Clara, CA · On-site

... Strong proponent of the sales and customer support relationship • Familiarity with sales and marketing tools and systems, e.g. Marketo, Insidesales.com, Office applications; some analytics ...

Intuit

Staff Software Engineer

Mountain View, CA · On-site

Be a proponent of building systems for performance and scale. Footer Intuit provides a competitive compensation package with a strong pay for performance rewards approach. This position may be ...

Turners Outdoorsman

Associate

Palmdale, CA · On-site

$16.50/hr

... proponent of the Turner's brand and company culture. Our Associates practice professionalism in attitude and appearance skilled in the art of communication and customer service. ESSENTIAL FUNCTIONS

Turners Outdoorsman

Sales Associate

Lake Forest, CA · On-site

$16.50 - $17.50/hr

... proponent of the Turner's brand and company culture. The Sales Associate is a retail professional role model in attitude and appearance skilled in the art of communication and customer service.

Turners Outdoorsman

Tackle Dept Manager

El Cajon, CA · On-site

$17 - $19/hr

... being a strong proponent of the Turner's brand and the company culture. The Tackle Department Manager is a retail professional role model in attitude and appearance skilled in the art of ...

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Proponent information

What is a proponent?

Proponents are individuals or organizations that advocate for a particular idea, cause, project, or policy. Their primary role is to promote, support, and push forward initiatives by presenting arguments, gathering support, and engaging with stakeholders. Proponents can be found in fields such as law, government, community development, and business, often acting as champions for new proposals or changes. Their responsibilities may include preparing documentation, presenting evidence or benefits, and addressing concerns from the public or decision-makers.

What are the key skills and qualifications needed to thrive as a proponent?

To excel as a Proponent (such as a project or policy proponent), you need strong subject-matter expertise, research skills, and the ability to develop compelling proposals, typically supported by relevant educational or professional background. Familiarity with project management software, data analysis tools, and regulatory frameworks is often required. Outstanding communication, negotiation, and stakeholder engagement abilities are crucial soft skills for advocating effectively. These competencies are vital for successfully advancing initiatives, securing approvals, and building consensus among diverse audiences.

How does a proponent typically collaborate with stakeholders during the proposal development process?

As a Proponent, you will work closely with internal teams (such as project managers, subject matter experts, and finance departments) and external stakeholders (like clients or regulatory bodies) to gather necessary information and align on project goals. Effective communication and coordination are essential, as you may need to facilitate meetings, clarify requirements, and ensure all contributions are integrated into the final proposal. The role often involves balancing multiple perspectives and deadlines to deliver a compelling, compliant submission.

What are popular job titles related to Proponent jobs in California?

For Proponent jobs in California, the most frequently searched job titles are:

What job categories do people searching Proponent jobs in California look for?

The top searched job categories for Proponent jobs in California are:

What cities in California are hiring for Proponent jobs?

Cities in California with the most Proponent job openings:

Proponent jobs near you
Infographic showing various Proponent job openings in California as of August 2026, with employment types broken down into 67% Full Time, and 33% Part Time. Highlights an 100% In-person job distribution.

Accounts Receivable Specialist

Proponent, Inc

Ontario, CA • On-site

$22 - $24/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 5 days ago

Job description

About Proponent:

Proponent is the world’s largest independent, employee-owned distributor of aircraft parts, serving customers worldwide. With more than 600 employees across 14 global locations, we take pride in helping keep thousands of aircraft flying safely and efficiently every day. For over 50 years, we’ve built the systems, relationships, and expertise that aviation relies on, from responsive quoting and on-time shipments to data-driven improvements that reduce turnaround time and cost. As a 100% employee-owned company, everyone at Proponent is an owner, which means we share responsibility for our success, look out for one another, and bring dedication and creativity to aviation logistics. Guided by our core values, empathy, intelligence, agility and integrity, we work as a trusted partner to keep aircraft in service and customers moving forward. At Proponent, you’ll join a global team committed to doing things right and supporting each other, helping keep aircraft flying and the world connected.

Accounts Receivable Specialist

Job Location: Ontario, CA

Job Summary: 

The Accounts Receivable Specialist is responsible for supporting the accuracy, timeliness, and integrity of customer billing and payment activity. The ideal candidate is detail-oriented, organized, and comfortable working with high-volume transactions while maintaining a customer-focused approach. This role requires strong communication skills to resolve billing questions, follow up on outstanding balances, and partner effectively with internal teams. The successful candidate will demonstrate sound judgment, confidentiality, and a commitment to process accuracy and continuous improvement.

Job Responsibilities: 

  • Process, post, and apply customer payments accurately and in accordance with company policies and procedures.
  • Prepare, review, and maintain customer invoices, statements, credits, and account records.
  • Monitor customer accounts for past-due balances, discrepancies, short payments, and other irregularities.
  • Communicate with customers regarding payment status, billing questions, and collection follow-up while maintaining positive business relationships.
  • Research and resolve billing discrepancies, unapplied cash, deductions, and customer account issues in a timely manner.
  • Reconcile accounts receivable activity and support month-end close processes, reporting, and audit requests.
  • Prepare and distribute aging reports, collection updates, and other accounts receivable metrics as needed.
  • Collaborate with Sales, Customer Service, Operations, and Finance teams to resolve account issues and improve cash application and collection processes.
  • Maintain accurate documentation and comply with internal controls, accounting procedures, and applicable regulatory requirements.

Requirements for Success:

  • High school diploma or equivalent required; associate or bachelor’s degree in Accounting, Finance, Business Administration, or related field preferred.
  • Working knowledge of basic accounting principles and accounts receivable processes.
  • Proficiency with Microsoft Office, including Excel; experience with ERP or accounting systems preferred.
  • Strong attention to detail, accuracy, organization, and follow-through.Excellent written and verbal communication skills with the ability to interact professionally with customers and internal stakeholders.
  • Ability to prioritize tasks, meet deadlines, and manage multiple responsibilities in a fast-paced environment.
  • Ability to handle confidential financial information with discretion and integrity

Benefits and Perks of joining the team: 

  • Medical, Dental, and Vision plan options
  • Employee Stock Ownership Plan
  • 401k Plan
  • Vacation, Sick, and Holidays
  • Good work-life balance
  • WFH Hybrid available for most positions

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