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Development Administrative Assistant Jobs in Riverside, CA

MasTec Inc

Administrative Assistant

Pomona, CA · On-site

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

MasTec Inc

Administrative Assistant

Pomona, CA

$21.92 - $32.84/hr

We are certified as a minority-controlled company by the National Minority Suppliers Development ... Responsibilities The Administrative Assistant role is responsible for managing vendor payments ...

Johnny Allen Tennis

Administrative Assistant

Chino, CA · On-site

$18.25 - $24.75/hr

You'll be working both with the company and directly with the business owner, helping to support daily operations, administrative planning, and ongoing developments within various projects. It's a ...

Johnny Allen Tennis

Administrative Assistant

Chino, CA · Remote

$18.25 - $24.75/hr

You'll be working both with the company and directly with the business owner, helping to support daily operations, administrative planning, and ongoing developments within various projects. It's a ...

ServiceMaster

Administrative Assistant

Irvine, CA · On-site

$60K - $75K/yr

Training & development Position Overview Successful candidates will have experience in an office ... Previous administrative assistant experience preferred but not required * Experience and skill with ...

ServiceMaster

Administrative Assistant

Riverside, CA · On-site

$15 - $20/hr

Training & development Position Overview Successful candidates will have experience in an office ... Previous administrative assistant experience preferred but not required * Experience and skill with ...

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Development Administrative Assistant information

See Riverside, CA salary details

$12

$21

$32

How much do development administrative assistant jobs pay per hour?

As of Jun 8, 2026, the average hourly pay for development administrative assistant in Riverside, CA is $21.95, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $24.33 per hour, depending on experience, location, and employer.

What is the difference between Development Administrative Assistant vs Fundraising Coordinator?

Development Administrative AssistantFundraising Coordinator
Handles administrative tasks like scheduling, data entry, and correspondence for development teamsPlans and executes fundraising campaigns, manages donor relations, and organizes events
Requires administrative skills, familiarity with CRM systems, and basic fundraising knowledgeRequires fundraising experience, communication skills, and knowledge of donor engagement
Typically works in nonprofit or educational organizations in a support roleWorks in nonprofit, charity, or educational sectors focusing on fundraising efforts

The Development Administrative Assistant primarily provides administrative support within development teams, while the Fundraising Coordinator actively manages fundraising initiatives and donor relations. Both roles often collaborate but differ in focus: one supports operations, the other drives revenue through fundraising activities.

What are some typical daily responsibilities of a Development Administrative Assistant in a nonprofit organization?

As a Development Administrative Assistant in a nonprofit, your daily tasks often include managing donor databases, preparing acknowledgment letters, scheduling meetings for the development team, and assisting with fundraising events. You may also help coordinate communications between donors and staff, process donations, and generate reports for leadership. Strong organizational skills and attention to detail are essential, as you'll be supporting multiple projects and collaborating closely with fundraisers and other departments.

What are the key skills and qualifications needed to thrive as a Development Administrative Assistant, and why are they important?

To thrive as a Development Administrative Assistant, you need strong organizational skills, attention to detail, and proficiency in office administration, often supported by an associate's or bachelor's degree. Familiarity with donor management software (like Raiser's Edge), Microsoft Office Suite, and basic bookkeeping systems is typically required. Exceptional communication, multitasking abilities, and a proactive approach help you excel in supporting fundraising and development teams. These skills ensure efficient operations, accurate record-keeping, and effective donor relations, which are vital for achieving fundraising goals.

What are Development Administrative Assistants?

Development Administrative Assistants are support professionals who help fundraising and development teams in nonprofit organizations, educational institutions, or similar settings. They handle administrative tasks such as managing donor databases, preparing correspondence, scheduling meetings, assisting with event planning, and maintaining records. Their work ensures that development operations run smoothly and that the organization can effectively build relationships with donors and supporters. These assistants often interact with staff, donors, and volunteers, making strong organizational and communication skills essential for the role.
What are popular job titles related to Development Administrative Assistant jobs in Riverside, CA? For Development Administrative Assistant jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Development Administrative Assistant jobs in Riverside, CA look for? The top searched job categories for Development Administrative Assistant jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Development Administrative Assistant jobs? Cities near Riverside, CA with the most Development Administrative Assistant job openings:
Development Administrative Assistant jobs near you
Infographic showing various Development Administrative Assistant job openings in Riverside, CA as of May 2026, with employment types broken down into 3% As Needed, 75% Full Time, 17% Part Time, 1% Temporary, and 4% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $45,662 per year, or $22 per hour.
Administrative Assistant

Administrative Assistant

MasTec Inc

Pomona, CA • On-site

$21.92 - $32.84/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 6 days ago

MasTec rating

7.4

Company rating: 7.4 out of 10

Based on 149 frontline employees who took The Breakroom Quiz

36th of 78 rated construction

Job description

Overview
Henkels & McCoy West works closely with clients from diverse markets to build enduring partnerships throughout the Western United States. Our team of seasoned professionals designs, builds, manages, and maintains critical and sustainable infrastructure for the power, oil & gas pipeline, gas distribution, and communications industries. Building on a 100-year legacy of performance and service to utility, commercial, industrial, and government clients, H&M West brings together extensive knowledge and innovation to deliver infrastructure construction solutions that meet future energy needs today.
H&M West is a purpose-driven company. Our core values guide our strategy, performance, and culture. We believe in maintaining an environment where team members can make an impact, grow, and thrive. A place where they find meaning and purpose in doing the important work of ensuring communities have the vital energy, light, and communications to prosper. Our culture is inclusive and welcoming. Our teams are empowered with abundant training, tools, and opportunities to follow their curiosity and ambitions. Everyone has an equal chance to advance. Everyone is supported, respected, and challenged to be their best. We're always looking for talented and dedicated people to join us and love where they work.
Henkels & McCoy West is a proud subsidiary of MasTec (NYSE: MTZ), a Fortune 500 Company ranked by Energy News-Record as one of the leading contractors in the country. H&M West is part of the MasTec Power Delivery segment. We are certified as a minority-controlled company by the National Minority Suppliers Development Council (NMSDC). Our rich diversity of people and ideas makes us a stronger, more innovative organization.
Responsibilities
The Administrative Assistant role is responsible for managing vendor payments, processing invoices, and maintaining accurate financial records. This role requires a minimum of 3 years of Accounts Payable experience, intermediate level Microsoft Office skills, and accounting software proficiency. The ideal candidate is someone with strong attention to detail, excellent verbal and written communication skills, and the ability to work independently and prioritize tasks.
  • Monitors and manages the Accounts Payable inbox, receiving and routing vendor invoices and inquiries.
  • Processes invoices for payment by verifying accuracy and required information in JD Edwards.
  • Uses ScanMan (OCR) to scan, upload, and index vendor invoices.
  • Assigns correct business unit (BU) numbers and supplier IDs to invoices.
  • Follows up with internal teams to obtain proper coding and approvals for invoices.
  • Assists with resolving basic invoice and vendor questions.
  • Helps reconcile vendor statements and supports invoice research as needed.
  • Maintains AP records by scanning, filing, and organizing documents.
  • Provides customer service to internal departments and vendors regarding AP-related inquiries.
  • Learns Accounts Payable processes and follows company procedures and best practices.
  • Maintains confidentiality of financial and company information.
  • Performs other administrative and accounting support duties as assigned.
  • Assist the project controls team with other administrative functions to include customer billing.

Qualifications
  • Experience in financial bookkeeping software
  • Expert-Level knowledge of spreadsheets
  • Experience with word-processing tools is essential for generating and writing reports for record-keeping and presentations
  • General ledger experience
  • Attention to detail & thoroughness
  • Highly organized
  • Analytical skills, data entry skills & general math skills
  • Experience working in JD Edwards (preferred)
  • Understanding of current accounting trends (preferred)
  • Experience with budget creation and finance management (preferred)

Education and Experience Requirements:
  • High School Diploma, GED, or equivalent required
  • Bachelor's degree in accounting, finance, or related field preferred
  • 3+ years of accounting experience required
  • Previous experience in accounts payable in the Construction Industry preferred

Wage Range:
$21.92 to $32.84/Hour
Benefits:
Full-time employees are eligible to participate in our benefit plan which includes the following:
  • 401(k) Plan
  • Employee Stock Purchase Plan
  • Health, Dental, & Vision Insurance
  • Voluntary Life Insurance
  • Voluntary Short Term & Long-Term Disability
  • Paid time off

Henkels & McCoy West is an Equal Opportunity Employer of Minorities, Females, Protected Veterans, and Individuals with Disabilities.

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